阅读说明：本技术 蜂窝型双通预制楼板及其成型方法、施工方法 (Honeycomb type bi-pass prefabricated floor slab and forming method and construction method thereof ) 是由 谭刚 刘亚东 李新华 赵辉 于 2019-11-18 设计创作，主要内容包括：本发明公开了蜂窝型双通预制楼板及其成型方法、施工方法,其中,蜂窝型双通预制楼板包括：上部板与下部板,所述上部板与下部板之间设有若干支墩,上部板与下部板通过支墩连接,若干支墩在上部板与下部板之间构成若干横向通道与若干纵向通道,横向通道与纵向通道相互贯通,下部板的纵向尺寸与横向尺寸均大于上部板,下部板沿外边形成出挑；位于上部板内的顶部纵向钢筋与顶部横向钢筋；位于下部板内的底部纵向钢筋与底部横向钢筋,顶部纵向钢筋的端部朝向底部纵向钢筋弯折后并延伸形成折弯钢筋,及其成型方法与施工方法。本发明的蜂窝型双通预制楼板方便布线,可灵活运用蜂窝型双通预制楼板的内部空间。(The invention discloses a honeycomb type bi-pass precast floor slab, a forming method and a construction method thereof, wherein the honeycomb type bi-pass precast floor slab comprises the following components: the upper plate and the lower plate are connected through the support piers, a plurality of transverse channels and a plurality of longitudinal channels are formed between the upper plate and the lower plate through the support piers, the transverse channels are communicated with the longitudinal channels, the longitudinal size and the transverse size of the lower plate are larger than those of the upper plate, and the lower plate forms a protrusion along the outer edge; top longitudinal steel bars and top transverse steel bars in the upper plate; the end part of the top longitudinal steel bar bends towards the bottom longitudinal steel bar and extends to form a bent steel bar, and the forming method and the construction method thereof. The honeycomb type bi-pass prefabricated floor slab disclosed by the invention is convenient to wire and can flexibly use the internal space of the honeycomb type bi-pass prefabricated floor slab.)

1, kind of honeycomb type bi-pass precast floor slab, its characterized in that includes:

the upper plate and the lower plate are connected through the support piers, a plurality of transverse channels and a plurality of longitudinal channels are formed between the upper plate and the lower plate through the support piers, the transverse channels are communicated with the longitudinal channels, the longitudinal size and the transverse size of the lower plate are larger than those of the upper plate, and the lower plate forms a protrusion along the outer edge;

a top longitudinal rebar disposed within the upper plate and extending in a longitudinal direction of the upper plate and through the upper plate;

a bottom longitudinal rebar disposed within the lower plate, the bottom longitudinal rebar extending in a longitudinal direction of the upper plate and through the lower plate;

a top transverse rebar disposed within the upper plate, the top transverse rebar extending in a transverse direction of the upper plate and through the upper plate;

a bottom transverse rebar disposed within the lower plate, the bottom transverse rebar extending in a transverse direction of the lower plate;

and the end part of the top longitudinal steel bar is bent towards the bottom longitudinal steel bar and extends to form a bent steel bar.

2. The honeycomb type double-pass precast floor slab of claim 1, characterized in that:

the axial direction of the transverse channels is perpendicular to the axial direction of the longitudinal channels, the distances between the adjacent transverse channels are equal, and the distances between the adjacent longitudinal channels are equal.

3. The honeycomb type double-pass precast floor slab of claim 2, characterized in that:

the cross section of the transverse channel is quadrilateral, and the cross section of the longitudinal channel is quadrilateral.

4, A forming method for prefabricating the honeycomb type double pass precast floor slab of any of claims 1 to 3, comprising the steps of:

and manufacturing an inner mold according to the shape formed by the transverse channel and the longitudinal channel, correspondingly placing the inner mold, the top longitudinal steel bar, the bottom longitudinal steel bar, the top transverse steel bar and the bottom transverse steel bar at the corresponding positions of the template, and pouring to obtain the honeycomb type bi-pass precast floor slab.

5, A forming method for prefabricating the honeycomb type double pass precast floor slab of any of claims 1 to 3, comprising the steps of:

placing the top longitudinal steel bars, the top transverse steel bars and the inserted bars at corresponding positions in an th template, then manufacturing an upper plate with buttresses according to the shape formed by the transverse channel and the longitudinal channel together, enabling the inserted bars to extend out of the end faces of the buttresses far away from the upper plate, then placing the bottom longitudinal steel bars and the bottom transverse steel bars at corresponding positions in a second template for pouring, inserting the inserted bars extending out of the buttresses into a poured lower plate when the lower plate is poured, and forming a body after pouring forming, thereby obtaining the honeycomb type bi-pass prefabricated floor slab.

6, kind of honeycomb type bi-pass precast floor slab, its characterized in that includes:

the upper plate and the lower plate are connected through the support piers, a plurality of transverse channels and a plurality of longitudinal channels are formed between the upper plate and the lower plate through the support piers, the transverse channels are communicated with the longitudinal channels, the longitudinal size and the transverse size of the lower plate are larger than those of the upper plate, and the lower plate forms a protrusion along the outer edge;

along the transverse direction of the lower plate, a positioning piece is embedded in the end of the protrusion of the lower plate, the positioning piece comprises an embedded part and a connecting part, and the connecting part of the positioning piece extends out of the protrusion of the lower plate and is used for being connected with the protrusion of the adjacent lower plate;

a top longitudinal rebar disposed within the upper plate and extending in a longitudinal direction of the upper plate and through the upper plate;

a bottom longitudinal rebar disposed within the lower plate, the bottom longitudinal rebar extending in a longitudinal direction of the upper plate and through the lower plate;

a top transverse rebar disposed within the upper plate, the top transverse rebar extending in a transverse direction of the upper plate and through the upper plate;

a bottom transverse rebar disposed within the lower plate, the bottom transverse rebar extending in a transverse direction of the upper plate;

and the end part of the top longitudinal steel bar is bent towards the bottom longitudinal steel bar and extends to form a bent steel bar.

7. The honeycomb type double-pass precast floor slab of claim 6, wherein:

the positioning piece comprises an th plate body, a second plate body and a third plate body which are sequentially connected, wherein the th plate body is parallel to the third plate body, and the second plate body is respectively vertical to the th plate body and the third plate body;

the pre-buried portion of setting element is the th plate body, the connecting portion of setting element is third plate body and second plate body.

8. The honeycomb type double-pass precast floor slab of claim 6, wherein:

the positioning pieces are uniformly distributed at the protruding positions of the lower plate along the longitudinal direction of the lower plate.

9. The honeycomb type double-pass precast floor slab of claim 6, wherein:

the axial direction of the transverse channels is perpendicular to the axial direction of the longitudinal channels, the distances between the adjacent transverse channels are equal, and the distances between the adjacent longitudinal channels are equal.

10. The honeycomb type double-pass precast floor slab of claim 9, wherein:

the cross section of the transverse channel is quadrilateral, and the cross section of the longitudinal channel is quadrilateral.

11, forming method for prefabricating the honeycomb type double pass precast floor slab of any of claims 6 to 10, comprising the steps of:

and manufacturing an inner mold according to the shape formed by the transverse channel and the longitudinal channel, placing the inner mold, the top longitudinal steel bar, the bottom longitudinal steel bar, the top transverse steel bar, the bottom transverse steel bar and the positioning piece at corresponding positions in the template correspondingly, and pouring to obtain the honeycomb type bi-pass prefabricated floor slab.

12, A forming method for prefabricating the honeycomb type double pass precast floor slab of any of claims 6 to 10, comprising the steps of:

placing the top longitudinal steel bars, the top transverse steel bars and the inserted bars at corresponding positions in an th template, then manufacturing an upper plate with buttresses according to the shape formed by the transverse channel and the longitudinal channel together, enabling the inserted bars to extend out of the end faces of the buttresses far away from the upper plate, then placing the bottom longitudinal steel bars, the bottom transverse steel bars and the positioning pieces at corresponding positions in a second template for pouring, inserting the inserted bars extending out of the buttresses into a poured lower plate when the lower plate is poured, and forming a body after pouring forming, so as to obtain the honeycomb type bi-pass prefabricated floor slab.

A construction method of using the honeycomb type double pass precast floor slab of any of claim 1 or 6 constructed in a longitudinal direction, both sides of the top of the structural beam or wall panel being provided with a supporting member, comprising the steps of:

s1, placing the th honeycomb type double-pass precast floor slab at the th end in the longitudinal direction on a support piece at the th side of the structural beam or the wallboard, so that the top longitudinal steel bars and the bottom longitudinal steel bars at the corresponding ends of the th honeycomb type double-pass precast floor slab extend into the upper space of the structural beam or the wallboard;

s2: placing a second end of the second honeycomb type bi-pass precast floor slab in the longitudinal direction on a support piece at a second side of the structural beam or the wallboard, so that top longitudinal steel bars and bottom longitudinal steel bars at the corresponding end of the second honeycomb type bi-pass precast floor slab extend into the upper space of the structural beam or the wallboard;

s3, inserting and arranging pipelines in transverse channels and longitudinal channels of a honeycomb type double-pass precast floor slab and a second honeycomb type double-pass precast floor slab, and then paving baffles on opposite surfaces of adjacent honeycomb type double-pass precast floor slabs for separating the longitudinal channels from upper spaces of structural beams or wallboards;

s4: and placing the post-cast section transverse steel bars in the upper space of the structural beam or the wallboard, and pouring concrete.

14, construction method for constructing in a transverse direction using the honeycomb type double pass precast floor slab of claim 6, comprising the steps of:

s1, overlapping a positioning piece of a honeycomb type bi-pass precast floor slab on a end of a positioning piece of a second honeycomb type bi-pass precast floor slab, wherein the positioning piece is far away from the positioning piece along the transverse direction, the honeycomb type bi-pass precast floor slab and the second honeycomb type bi-pass precast floor slab jointly form a cast-in-place groove, and top transverse steel bars of the honeycomb type bi-pass precast floor slab and the second honeycomb type bi-pass precast floor slab extend into the in-place groove space of the cast-in-place groove;

s2, connecting the connecting part of the positioning piece with the end of the positioning piece far away from the second honeycomb-shaped double-pass precast floor slab along the transverse direction through bolts;

s3: and paving baffles on opposite surfaces of the adjacent honeycomb type bi-pass precast floor slabs for separating the transverse channel from the in-situ casting groove, and placing the transverse reinforcing steel bars and the longitudinal reinforcing steel bars of the post-casting section in the in-situ casting groove for concrete casting.

Technical Field

The invention relates to the field of prefabricated floor slab structure design, in particular to honeycomb type double-pass prefabricated floor slabs and a forming method and a construction method thereof.

Background

The precast floor slab is a floor slab which is used in the early buildings in the 20 th century and is a module or a plate used in engineering, the precast floor slab is a concrete precast member which is produced and processed in a precast yard and is directly transported to a construction site for installation, so the precast floor slab is called the precast floor slab, and the precast floor slab is widely applied to various buildings in order to shorten the construction period and reduce the labor cost by .

However, in the prior art, only a plurality of channels are arranged in parallel on the precast floor slab, the channels are arranged in parallel, and are mainly used for reducing the weight of the precast floor slab and further saving concrete materials.

Disclosure of Invention

The invention aims to provide honeycomb type double-pass precast floor slabs and a forming method and a construction method thereof, provides honeycomb type double-pass precast floor slabs convenient for wiring, can fully utilize hollow space in the precast floor slabs, and provides a forming method and a corresponding construction method of the honeycomb type double-pass precast floor slabs.

The technical scheme provided by the invention is as follows:

A honeycomb-type bi-pass prefabricated floor slab comprises an upper plate and a lower plate, wherein a plurality of buttresses are arranged between the upper plate and the lower plate, the upper plate and the lower plate are connected through the buttresses, a plurality of transverse channels and a plurality of longitudinal channels are formed between the upper plate and the lower plate by the buttresses, the transverse channels and the longitudinal channels are communicated with each other, the longitudinal size and the transverse size of the lower plate are larger than those of the upper plate, a cantilever is formed along the outer edge of the lower plate, top longitudinal steel bars are arranged in the upper plate and extend in the longitudinal direction of the upper plate and penetrate through the upper plate, bottom longitudinal steel bars are arranged in the lower plate and extend in the longitudinal direction of the upper plate and penetrate through the lower plate, top transverse steel bars are arranged in the upper plate and extend in the transverse direction of the upper plate and penetrate through the upper plate, bottom transverse steel bars are arranged in the lower plate and extend in the transverse direction of the lower plate, and are bent towards the ends of the top longitudinal steel bars.

In the structure, the plurality of transverse channels and the longitudinal channels which are communicated with each other are arranged, so that the pipeline can shuttle and turn in the transverse channels and the longitudinal channels which are communicated with each other, the pipeline is convenient to arrange, meanwhile, the transverse channels and the longitudinal channels exist in the honeycomb type bi-pass prefabricated floor slab, the dead weight of the honeycomb type bi-pass prefabricated floor slab can be greatly reduced, the concrete consumption during prefabrication is reduced, the cost is reduced, and sufficient rigidity is achieved.

Preferably, the axial direction of the transverse channels is perpendicular to the axial direction of the longitudinal channels, the distance between the adjacent transverse channels is equal, and the distance between the adjacent longitudinal channels is equal.

Preferably, the cross-sectional shape of the transverse channel is quadrilateral, and the cross-sectional shape of the longitudinal channel is quadrilateral.

forming methods are used for prefabricating the honeycomb type bi-pass prefabricated floor slab and comprise the following steps of manufacturing an inner mold according to the shape formed by a transverse channel and a longitudinal channel, correspondingly placing the inner mold, a top longitudinal steel bar, a bottom longitudinal steel bar, a top transverse steel bar and a bottom transverse steel bar at corresponding positions of a template, pouring, and obtaining the honeycomb type bi-pass prefabricated floor slab after pouring forming.

The inner die of the honeycomb type bi-pass prefabricated floor slab prefabricated by the forming method does not need to be taken out, the prefabricating speed is high, and the steps are few.

And another molding methods are provided for prefabricating the honeycomb type bi-pass prefabricated floor slab, and include the following steps of placing top longitudinal steel bars, top transverse steel bars and inserting bars at corresponding positions in a th template, manufacturing an upper plate with buttresses according to a shape formed by the transverse channels and the longitudinal channels together, enabling the inserting bars to extend out of the end faces of the buttresses far away from the upper plate, placing bottom longitudinal steel bars and bottom transverse steel bars at corresponding positions in a second template for casting, inserting the inserting bars extending outwards from the buttresses into a cast lower plate during casting of the lower plate, and forming bodies after casting molding to obtain the honeycomb type bi-pass prefabricated floor slab.

Compared with the forming method adopting the inner die, the forming method for the prefabricated honeycomb type bi-pass prefabricated floor slab has lower cost.

The other honeycomb-type bi-pass precast floor slab comprises an upper plate and a lower plate, wherein a plurality of support piers are arranged between the upper plate and the lower plate and are connected with the lower plate through the support piers, a plurality of transverse channels and a plurality of longitudinal channels are formed between the upper plate and the lower plate through the support piers and are communicated with each other, the longitudinal dimension and the transverse dimension of the lower plate are larger than those of the upper plate, a protrusion is formed on the outer side of the lower plate, a positioning piece is embedded at the protruding end of the lower plate along the transverse direction of the lower plate and comprises an embedded part and a connecting part, the connecting part of the positioning piece extends out of the protrusion of the lower plate and is connected with the protrusion of the adjacent lower plate, top longitudinal steel bars are arranged in the upper plate, the top longitudinal steel bars extend in the longitudinal direction of the upper plate and penetrate through the upper plate, bottom longitudinal steel bars are arranged in the lower plate, the bottom longitudinal steel bars extend in the longitudinal direction of the upper plate and penetrate through the upper plate, the top longitudinal steel bars extend in the transverse direction of the upper plate, and are bent towards the transverse direction of the upper plate, and the bottom longitudinal steel bars extend in the upper plate, and are bent in the transverse direction of the upper plate, and the bottom longitudinal steel bars.

In the structure, the plurality of transverse channels and the longitudinal channels which are communicated with each other are arranged, so that the pipeline can shuttle and turn in the transverse channels and the longitudinal channels which are communicated with each other, the pipeline is convenient to arrange, meanwhile, the transverse channels and the longitudinal channels exist in the honeycomb type bi-pass prefabricated floor slab, the dead weight of the honeycomb type bi-pass prefabricated floor slab can be greatly reduced, the concrete consumption during prefabrication is reduced, the cost is reduced, and sufficient rigidity is achieved. Simultaneously, when the prefabricated floor of adjacent honeycomb type bi-pass on the transverse direction connects, the setting element can improve the wholeness after the connection for the atress of adjacent honeycomb type bi-pass prefabricated floor is more even and reasonable, simultaneously because the setting element can realize aligning fast on the direction of height between the adjacent honeycomb type bi-pass prefabricated floor, construction cycle shortens. Meanwhile, the structure after connection can effectively reduce the cracking of the adjacent honeycomb type bi-pass precast floor slabs at the joints, the waterproof performance is improved, and the water seepage possibility is reduced.

Preferably, the positioning element comprises an th plate body, a second plate body and a third plate body which are sequentially connected, the th plate body is parallel to the third plate body, the second plate body is respectively perpendicular to the th plate body and the third plate body, the embedded part of the positioning element is the th plate body, and the connecting part of the positioning element is the third plate body and the second plate body.

Preferably, the number of the positioning parts is multiple, and the positioning parts are uniformly distributed at the protruding positions of the lower plate along the longitudinal direction of the lower plate.

Preferably, the axial direction of the transverse channels is perpendicular to the axial direction of the longitudinal channels, the distance between the adjacent transverse channels is equal, and the distance between the adjacent longitudinal channels is equal.

Preferably, the cross-sectional shape of the transverse channel is quadrilateral, and the cross-sectional shape of the longitudinal channel is quadrilateral.

forming methods are used for prefabricating the honeycomb type bi-pass prefabricated floor slab, and the forming methods comprise the following steps of manufacturing an inner mold according to the shape formed by a transverse channel and a longitudinal channel, placing the inner mold, a top longitudinal steel bar, a bottom longitudinal steel bar, a top transverse steel bar, a bottom transverse steel bar and a positioning piece at corresponding positions in a template correspondingly, and then pouring to obtain the honeycomb type bi-pass prefabricated floor slab.

And then, providing another forming methods for prefabricating the honeycomb type bi-pass prefabricated floor slab, which comprise the following steps of placing top longitudinal steel bars, top transverse steel bars and inserting bars at corresponding positions in a th template, manufacturing an upper plate with supporting piers according to the shape formed by the transverse channels and the longitudinal channels together, enabling the inserting bars to extend out of the end faces of the supporting piers far away from the upper plate, placing bottom longitudinal steel bars, bottom transverse steel bars and positioning pieces at corresponding positions in a second template for pouring, inserting the inserting bars extending outwards from the supporting piers into a poured lower plate when the lower plate is poured, and forming bodies after pouring forming to obtain the honeycomb type bi-pass prefabricated floor slab.

construction method using the aforementioned honeycomb type dual-pass prefabricated floor slab for construction in longitudinal direction with supports on both sides of the top of structural beam or wall slab, including S1 placing the th end of the honeycomb type dual-pass prefabricated floor slab in longitudinal direction on the supports on the th side of the structural beam or wall slab so that the top and bottom longitudinal rebars of the corresponding end of the th honeycomb type dual-pass prefabricated floor slab extend into the upper space of the structural beam or wall slab, S2 placing the second end of the second honeycomb type dual-pass prefabricated floor slab in longitudinal direction on the supports on the second side of the structural beam or wall slab so that the top and bottom longitudinal rebars of the corresponding end of the second honeycomb type dual-pass prefabricated floor slab extend into the upper space of the structural beam or wall slab, S3 placing the transverse and longitudinal channels of the second honeycomb type dual-pass prefabricated floor slab and the second dual-pass prefabricated floor slab for pipeline insertion arrangement, then placing the transverse channel of the honeycomb type dual-pass prefabricated floor slab on the adjacent honeycomb type dual-pass prefabricated floor slab and placing the transverse channel slab for laying the transverse channel of the structural beam or wall slab and the upper space of the second dual-pass prefabricated wall slab, and placing the slab for laying the transverse channel of the structural beam or wall slab, and laying 4.

The construction method is applied to the connection of the adjacent honeycomb type bi-pass precast floor slabs in the longitudinal direction on the tops of the structural beams or the wallboards, and the construction method enables the honeycomb type bi-pass precast floor slabs to be free of other supporting pieces except for the supporting pieces arranged on the two sides of the structural beams or the wallboards during pouring, so that the construction investment is reduced, and the construction period is shortened.

construction methods are further provided, the honeycomb type double-pass precast floor slabs are used for construction in the transverse direction, and the construction method comprises the following steps of S1, overlapping a positioning piece of a st honeycomb type double-pass precast floor slab on a end of a positioning piece, far away from the second honeycomb type double-pass precast floor slab along the transverse direction, forming a cast-in-place groove by a st honeycomb type double-pass precast floor slab and the second honeycomb type double-pass precast floor slab together, enabling transverse reinforcing steel bars at the tops of the st honeycomb type double-pass precast floor slab and the second honeycomb type double-pass precast floor slab to stretch into the in-place groove space of the cast-in-place groove, S2, connecting a connecting part of the positioning piece with a end, far away from the positioning piece along the transverse direction, of the second honeycomb type double-pass precast floor slab through bolts, and S3, laying baffle plates on opposite surfaces of adjacent honeycomb type double-pass precast floor slabs for spacing a transverse channel from the groove of the cast-in-place groove, and placing a post-cast-in-place reinforcing steel bar longitudinal groove.

The construction method is applied to pouring connection of adjacent honeycomb type bi-pass prefabricated floor slabs in the transverse direction, and the adjacent honeycomb type bi-pass prefabricated floor slabs can be aligned in the height direction by means of the positioning pieces, so that the construction efficiency is improved, and the construction period is shortened.

The honeycomb type bi-pass precast floor slabs and the forming method and the construction method thereof provided by the invention can bring the following beneficial effects:

the plurality of transverse channels and the plurality of longitudinal channels which are communicated with each other in the honeycomb type bi-pass prefabricated floor slab can be used for shuttling and steering of pipelines, so that the pipelines can be conveniently arranged. The forming method and the construction method of the honeycomb type bi-pass precast floor slabs are applied to the construction method of the connection of the adjacent honeycomb type bi-pass precast floor slabs in the transverse direction, and the positioning pieces of the honeycomb type bi-pass precast floor slabs can realize the quick positioning of the adjacent honeycomb type bi-pass precast floor slabs in the height direction, so that the construction efficiency is improved.

Drawings

The above-described characteristics, technical features, advantages and implementation of the honeycomb type dual pass precast floor slab and the forming method thereof, the construction method thereof will be further described in in a clearly understandable manner by referring to the preferred embodiments illustrated in the accompanying drawings.

FIG. 1 is a schematic perspective view of a honeycomb type double pass precast floor slab;

FIG. 2 is a longitudinal side view of a honeycomb type double pass precast floor slab;

FIG. 3 is a plan view of a honeycomb type double pass precast floor slab;

FIG. 4 is a lateral side view of a honeycomb type double pass precast floor slab;

FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;

FIG. 6 is a schematic perspective view of another kinds of honeycomb type double pass prefabricated floor slabs;

FIG. 7 is a lateral side view of another honeycomb type double pass precast floor slabs;

fig. 8 is a schematic view of adjacent honeycomb type double pass precast floor slabs of fig. 6 connected to each other in a lateral direction;

fig. 9 is a schematic view of adjacent honeycomb type double pass precast floor slabs being connected to each other in the longitudinal direction.

The reference numbers illustrate:

1-honeycomb type bi-pass precast floor slab, 1 a-upper plate, 1 b-lower plate, 1 c-buttress, 1 d-cantilever, 1 e-top longitudinal steel bar, 1 f-bent steel bar, 1 g-bottom longitudinal steel bar, 1 h-transverse channel, 1 i-longitudinal channel, 1 j-top transverse steel bar, 1 k-bottom transverse steel bar, 2-structural beam, 2 a-holding tank, 3-post-cast concrete, 4-positioning piece, 4a- plate body, 4 b-second plate body, 4 c-third plate body, 5-bolt, 6-post-cast section transverse steel bar and 7-post-cast section longitudinal steel bar.

Detailed Description

It should be apparent that the drawings in the following description are only examples of the invention, and other drawings and embodiments can be obtained by those skilled in the art without creative effort.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.

[ example 1 ]

As shown in fig. 1 to 5, embodiment 1 discloses an embodiment of honeycomb type double-pass precast floor slabs 1, which comprises an upper slab 1a and a lower slab 1b, top longitudinal reinforcements 1e and top transverse reinforcements 1j in the upper slab 1a, and bottom longitudinal reinforcements 1g and bottom transverse reinforcements 1k (not shown) in the lower slab 1 b.

As shown in fig. 1, 4 and 5, 21 buttresses 1c are arranged between the upper plate 1a and the lower plate 1b, the upper plate 1a and the lower plate 1b are connected through the 21 buttresses 1c, the 21 buttresses 1c form 6 transverse channels 1h and 2 longitudinal channels 1i between the upper plate 1a and the lower plate 1b, wherein the transverse channels 1h and the longitudinal channels 1i are communicated with each other, the longitudinal dimension and the transverse dimension of the lower plate 1b are both larger than those of the upper plate 1a, that is, the lower plate 1b forms a protrusion 1d along the outer edge.

As shown in fig. 1 to 3, the top longitudinal reinforcement 1e extends in the longitudinal direction of the upper plate 1a and penetrates the upper plate 1a, and the top transverse reinforcement 1j extends in the transverse direction of the upper plate 1a and penetrates the upper plate 1 a. The bottom longitudinal reinforcement 1g extends in the longitudinal direction of the upper plate 1a and penetrates the lower plate 1b, and the bottom transverse reinforcement 1k extends in the transverse direction of the lower plate 1 b. The end part of the top longitudinal steel bar 1e bends towards the bottom longitudinal steel bar 1g and extends to form a bent steel bar 1f, and the bent steel bar 1f is used for anchoring when the adjacent honeycomb type bi-pass precast floor slabs 1 are connected through cast-in-place concrete in the longitudinal direction.

As shown in fig. 5, specifically, the axial direction of the transverse channels 1h is perpendicular to the axial direction of the longitudinal channels 1i, and the distance between adjacent transverse channels 1h is equal and the distance between adjacent longitudinal channels 1i is equal. The cross-sectional shape of the transverse passage 1h is rectangular, and the cross-sectional shape of the longitudinal passage 1i is rectangular, that is, the cross-sectional shape of the buttress 1c is quadrangular.

Of course, in other embodiments, the cross-sectional shapes of the transverse channels 1h and the longitudinal channels 1i may be other shapes, such as circular, diamond, irregular patterns, etc., without limitation.

The embodiment also provides forming methods for prefabricating the honeycomb type dual-pass prefabricated floor slab 1, which comprise the following steps of manufacturing an inner mold according to a shape formed by the transverse channel 1h and the longitudinal channel 1i, wherein the inner mold is in a checkerboard shape, placing the inner mold, the top longitudinal steel bars 1e, the bottom longitudinal steel bars 1g, the top transverse steel bars 1j and the bottom transverse steel bars 1k at corresponding positions of a template for cast-in-place concrete correspondingly, and then pouring to obtain the honeycomb type dual-pass prefabricated floor slab 1.

The form is made according to actual conditions, and only the honeycomb type bi-pass precast floor slab 1 which can be used for concrete pouring and can be used for the forming method can be poured, and the form is not limited here.

By adopting the forming method to prefabricate the floor slab, the internal mold does not need to be taken out, the prefabrication speed is high, the steps are few, and the prefabricate floor slab is formed by bodies, so the integrity is better.

The embodiment also provides another forming methods for prefabricating the honeycomb type dual-pass prefabricated floor slab 1 in the embodiment, which comprises the following steps of placing top longitudinal steel bars 1e, top transverse steel bars 1j and inserting bars at corresponding positions in a th formwork, then manufacturing an upper plate 1a with supporting piers 1c according to a shape formed by the transverse passages 1h and the longitudinal passages 1i together, enabling the inserting bars to extend out of the end faces of the supporting piers 1c far away from the upper plate 1a, placing bottom longitudinal steel bars 1g and bottom transverse steel bars 1k at corresponding positions in a second formwork for pouring, inserting the inserting bars extending out of the supporting piers 1c into a poured lower plate 1b when pouring the lower plate 1b, and forming bodies after pouring and forming to obtain the honeycomb type dual-pass prefabricated floor slab 1.

The th form and the second form are manufactured according to actual conditions, as long as they can be used for concrete casting and can cast the honeycomb type double-pass precast floor slab 1 of the forming method, and there is no limitation here.

Compared with the forming method adopting an internal mold, the method for prefabricating the floor slab has lower cost.

[ example 2 ]

As shown in fig. 6 and 7, embodiment 2 discloses another specific implementation of honeycomb-type two-way precast floor slabs 1, which comprises an upper slab 1a and a lower slab 1b, top longitudinal reinforcements 1e and top transverse reinforcements 1j in the upper slab 1a, bottom longitudinal reinforcements 1g and bottom transverse reinforcements 1k in the lower slab 1b, and a positioning member 4.

21 buttresses 1c are arranged between the upper plate 1a and the lower plate 1b, the upper plate 1a and the lower plate 1b are connected through the 21 buttresses 1c, the 21 buttresses 1c form 6 transverse channels 1h and 2 longitudinal channels 1i between the upper plate 1a and the lower plate 1b, wherein the transverse channels 1h and the longitudinal channels 1i are mutually communicated, the longitudinal dimension and the transverse dimension of the lower plate 1b are both larger than those of the upper plate 1a, namely, the lower plate 1b forms a cantilever 1d along the outer edge.

As shown in fig. 6 and 7, the top longitudinal reinforcement 1e extends in the longitudinal direction of the upper plate 1a and penetrates the upper plate 1a, and the top transverse reinforcement 1j extends in the transverse direction of the upper plate 1a and penetrates the upper plate 1 a. The bottom longitudinal reinforcement 1g extends in the longitudinal direction of the upper plate 1a and penetrates the lower plate 1b, and the bottom transverse reinforcement 1k extends in the transverse direction of the lower plate 1 b. The end part of the top longitudinal steel bar 1e bends towards the bottom longitudinal steel bar 1g and extends to form a bent steel bar 1f, and the bent steel bar 1f is used for anchoring when the adjacent honeycomb type bi-pass precast floor slabs 1 are connected through cast-in-place concrete in the longitudinal direction.

As shown in fig. 6 and 7, along the transverse direction of the lower plate 1b, a positioning element 4 is embedded in the end of the protrusion 1d of the lower plate 1b, the positioning element 4 includes an embedded portion and a connecting portion, the connecting portion of the positioning element 4 extends out of the protrusion 1d of the lower plate 1b for connecting with the protrusion 1d of the adjacent lower plate 1b, the positioning element 4 covers the corresponding protrusion 1d along the longitudinal direction of the lower plate 1b, and the bottom transverse steel bar 1k extends to the positioning element 4 corresponding to the end of the positioning element 4.

As shown in fig. 7, the positioning member 4 is Z-shaped, the positioning member 4 includes th plate bodies 4a, 4b and 4c, the th plate body 4a is parallel to the third plate body 4c, the second plate body 4b is respectively perpendicular to the th plate body 4a and the third plate body 4c, the embedded portion of the positioning member 4 is the th plate body 4a, and the connecting portion of the positioning member 4 is the third plate body 4c and the second plate body 4 b.

In other specific embodiments, the number of the positioning members 4 may also be multiple, each of the positioning members 4 is Z-shaped, and the positioning members 4 are uniformly distributed at the position of the protrusion 1d of the lower plate 1b along the longitudinal direction of the lower plate 1b, that is, the positioning members 4 are arranged at the corresponding positions of the protrusion 1d at intervals.

The axial direction of the transverse channels 1h is perpendicular to the axial direction of the longitudinal channels 1i, and the distance between the adjacent transverse channels 1h is equal, and the distance between the adjacent longitudinal channels 1i is equal. The cross-sectional shape of the transverse passage 1h is rectangular, and the cross-sectional shape of the longitudinal passage 1i is rectangular, that is, the cross-sectional shape of the buttress 1c is quadrangular.

Of course, in other embodiments, the cross-sectional shapes of the transverse channels 1h and the longitudinal channels 1i may be other shapes, such as circular, diamond, irregular patterns, etc., without limitation.

The embodiment also provides forming methods for prefabricating the honeycomb type dual-pass prefabricated floor slab 1 in the embodiment, which comprise the following steps of manufacturing an inner mold according to a shape formed by the transverse channel 1h and the longitudinal channel 1i, placing the inner mold, the top longitudinal steel bar 1e, the bottom longitudinal steel bar 1g, the top transverse steel bar 1j, the bottom transverse steel bar 1k and the positioning piece 4 at corresponding positions in the formwork correspondingly, pouring, and obtaining the honeycomb type dual-pass prefabricated floor slab 1 in the embodiment.

The embodiment also provides another forming methods for prefabricating the honeycomb-type bi-pass prefabricated floor slab 1 in the embodiment, which includes the following steps of placing top longitudinal steel bars 1e, top transverse steel bars 1j and dowel bars at corresponding positions in a template, then manufacturing an upper slab 1a with piers 1c according to a shape formed by the transverse channels 1h and the longitudinal channels 1i, enabling the dowel bars to extend out of the end faces of the piers 1c far away from the upper slab 1a, placing bottom longitudinal steel bars 1g, bottom transverse steel bars 1k and positioning pieces 4 at corresponding positions in a second template for pouring, inserting the dowel bars extending out of the piers 1c into a poured lower slab 1b when pouring the lower slab 1b, and forming bodies after pouring, so as to obtain the honeycomb-type bi-pass prefabricated floor slab 1 in the embodiment.

Above-mentioned embodiment 1 or embodiment 2's honeycomb type bi-pass precast floor 1 is under the prerequisite of the same quality with prior art's precast floor, and rigidity is bigger, and construction convenience is swift, reduces the quantity of the bearing structure of erectting of work progress, specifically as follows:

with respect to the honeycomb type double pass precast floor slabs 1 disclosed in the above embodiment 1 or embodiment 2, construction methods are provided for the construction of the adjacent honeycomb type double pass precast floor slabs 1 in the longitudinal direction, as shown in fig. 9, and the structural beams 2 are provided at both sides of the top thereof with supports (not shown in fig. 9), such as corbels and the like, including the steps of:

and S1, placing the th end of the honeycomb-type double-pass precast floor slab 1 in the longitudinal direction on a support member on the th side of the structural beam 2, so that the top longitudinal steel bars 1e and the bottom longitudinal steel bars 1g of the th honeycomb-type double-pass precast floor slab 1 at the corresponding ends extend into the upper space of the structural beam 2.

S2: and placing the second end of the second honeycomb type bi-pass precast floor slab 1 in the longitudinal direction on a support piece at the second side of the structural beam 2, so that the top longitudinal steel bars 1e and the bottom longitudinal steel bars 1g of the corresponding end of the second honeycomb type bi-pass precast floor slab 1 extend into the upper space of the structural beam 2.

S3, inserting and arranging pipelines in transverse channels 1h and longitudinal channels 1i of a th honeycomb type double-pass precast floor slab 1 and a second honeycomb type double-pass precast floor slab 1, and then paving baffles on opposite surfaces of adjacent honeycomb type double-pass precast floor slabs 1 for separating the longitudinal channels 1i from the upper space of the structural beam 2.

S4: and placing the post-cast section transverse steel bar 6 in the upper space of the structural beam 2, and performing concrete pouring, namely forming the post-cast concrete 3 in the upper space of the structural beam 2.

In order to make the reinforcing bar 1f of buckling satisfy the anchor length of reinforcing bar to increase superposed beam 2 and the 3 combined action of post-cast concrete, offer holding tank 2a on the top terminal surface of structural beam 2.

Of course, the construction method for connecting the adjacent honeycomb-type bi-pass precast floor slabs 1 in the longitudinal direction may also be connected at the top of the wall slab, and the principle and the steps are the same, and are not described herein again.

For the honeycomb type double-pass precast floor slabs 1 disclosed in the above embodiment 2, construction methods were provided for the construction of the adjacent honeycomb type double-pass precast floor slabs 1 in the lateral direction, as shown in fig. 8, including the steps of:

s1, overlapping the positioning piece 4 of the honeycomb type double-pass precast floor slab 1 on the end of the positioning piece 4 far away from the second honeycomb type double-pass precast floor slab 1 along the transverse direction, wherein the honeycomb type double-pass precast floor slab 1 and the second honeycomb type double-pass precast floor slab 1 jointly form a cast-in-place groove, and the transverse steel bars 1j at the top of the honeycomb type double-pass precast floor slab 1 and the second honeycomb type double-pass precast floor slab 1 extend into the in-place groove space of the cast-in-place groove.

And S2, fixedly connecting the connecting part of the positioning piece 4 with the protruding part 1d of the second honeycomb-type double-pass precast floor slab 1 away from the end of the positioning piece 4 in the transverse direction through the bolt 5.

S3: and paving baffles on opposite surfaces of the adjacent honeycomb type bi-pass precast floor slabs 1, separating the transverse channel 1h from the space in the cast-in-place groove, and placing the transverse reinforcing steel bars 6 and the longitudinal reinforcing steel bars 7 of the post-cast section in the cast-in-place groove for concrete pouring.

Through the two construction methods, the adjacent honeycomb type bi-pass precast floor slabs 1 in the transverse direction or the longitudinal direction can be connected.

In other embodiments, the top longitudinal steel bar 1e, the bottom longitudinal steel bar 1g, the top transverse steel bar 1j and the top transverse steel bar 1j may be ordinary steel bars, prestressed twisted steel bars, stress-relief steel wires or steel strands, and the like, and the details are not repeated herein.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.