阅读说明：本技术 一种带地采暖管槽的半肋叠合楼板 (Half-rib composite floor slab with floor heating pipe groove ) 是由 程松林 苏蕴山 姜寅卿 于 2018-08-19 设计创作，主要内容包括：一种带地采暖管槽的半肋叠合楼板,叠合楼板上有敞口地采暖管槽,在不增加原叠合楼板结构层厚度前提下,地采暖管槽凹进叠合楼板后浇钢筋砼结构层,地采暖管槽上口与叠合楼板后浇钢筋砼结构层表面持平,地采暖管槽深50mm,宽80mm,所述的叠合楼板采用地采暖管直槽与单向应力钢筋砼楼板配置,顺板跨方向布置,间隔排列,地采暖折返槽布置在叠合楼板正负弯矩值低的部位,在叠合楼板的正弯矩部位,地采暖管直槽间隔排列,将叠合楼板横断面压应力区间隔成相对独立的板肋,地采暖折返槽将板肋切成半肋,对地采暖管槽凹进叠合楼板结构层,形成的叠合楼板应力损失部位,设置加强筋,优点是,将现有楼板建造工序省去了一道地采暖管安装的细石砼工序。(A semi-ribbed composite floor slab with ground heating pipe slot has an open ground heating pipe slot, and features that under the condition of not increasing the thickness of its structural layer, the ground heating pipe slot is recessed in the composite floor slab and has a reinforcing steel bar concrete structural layer, the upper opening of ground heating pipe slot is flush with the surface of said reinforcing steel bar concrete structural layer, the depth of ground heating pipe slot is 50mm and width is 80mm, and said composite floor slab is composed of straight ground heating pipe slot and unidirectional stress reinforcing steel bar concrete floor slab, and is arranged along the cross direction of slab and at intervals, the folded and returned ground heating slot is arranged at the position with low positive and negative bending moment, the pressure stress region of transverse cross section of composite floor slab is divided into independent ribs, and the folded and returned ground heating slot is used to cut the ribs into semi-ribs, and the ground heating pipe slot is recessed in the structural layer of composite floor slab to form the stress loss position of composite floor slab, the reinforcing ribs are arranged, and the method has the advantage that the fine stone concrete procedure for installing the floor heating pipe is omitted in the existing floor slab construction procedure.)

1. The utility model provides a half rib coincide floor in area heating chase which characterized in that: the composite floor slab has open floor heating pipe slot, and the floor heating pipe slot is set in the back floor slab and has steel bar concrete structure layer in the upper opening.

2. The half-rib composite floor slab with the ground heating pipe grooves according to claim 1, is characterized in that the composite floor slab is configured by adopting ground heating pipe straight grooves and unidirectional stress reinforced concrete floor slabs, the floor slabs are arranged in the cross direction and at intervals, and the ground heating folding grooves are arranged at the positions of the composite floor slab with low positive and negative bending moment values.

3. The half-rib composite floor slab with the ground heating pipe grooves according to claim 1, wherein the ground heating pipe straight grooves are arranged at intervals at the positive bending moment part of the composite floor slab, the compressive stress area of the cross section of the composite floor slab is divided into relatively independent plate ribs, the plate ribs are cut into half ribs by the ground heating folding grooves, the ground heating pipe grooves are recessed into the composite floor slab structure layer, and reinforcing ribs are arranged at the stress loss part of the composite floor slab.

4. The half-rib composite floor slab with floor heating pipe grooves according to any one of claims 1 to 3, wherein the floor heating pipe grooves are 50mm deep and 80mm wide.

Technical Field

The invention relates to a semi-rib composite floor slab with a ground heating pipe groove, and belongs to the technical field of fabricated buildings.

Background

The country vigorously promotes the innovation of the assembly type building technology, and aims to improve the building industrialization degree, overcome the resource, energy bottleneck and environmental pressure of China and enable the economic operation to enter a sustainable development state. The existing composite floor slab is combined with a prefabricated concrete layer and an integral post-cast concrete layer for building a house, the integral composite floor slab is firm and good in anti-seismic performance, has higher efficiency than the traditional process of a formwork integral-cast concrete floor slab, and is combined with a ground heating process which has uniform heat dissipation and comfortable living, so that the standard configuration is formed.

The existing composite floor slab and ground heating configuration process is used for prefabricating a concrete layer from a floor slab, integrally post-pouring a concrete composite layer and installing the concrete layer on a ground heating pipe, three concrete working procedures are required, the material consumption is high, the self weight is high, the field manual wet operation amount is overlarge, and the composite floor slab and ground heating pipe combination process is optimized, so that the problem to be solved in the field is solved.

Disclosure of Invention

The invention aims to overcome the weaknesses of high material consumption, large self weight and overlarge field manual wet operation amount in the process assembly of the composite floor slab and the ground heating pipe, and researches the advantages of firm house and good earthquake-resistant performance of the composite floor slab construction; under the condition of not increasing the thickness of the stress structure layer of the reinforced concrete floor slab, the floor heating pipe slot is moved into the laminated floor slab and then the reinforced concrete layer is poured. On the premise of ensuring the firmness and safety of the floor slab structure layer, the ground heating fine stone concrete layer is omitted, the material consumption and the dead weight are reduced, the field manual wet operation is reduced, the construction period is saved, and the construction cost is reduced.

The technical scheme of the invention is as follows:

a semi-ribbed composite floor slab with ground heating pipe slot features that the open ground heating pipe slot is made on the composite floor slab, the steel bar concrete structure layer is cast after the ground heating pipe slot is recessed into the composite floor slab, and the upper opening of ground heating pipe slot is flush with the surface of steel bar concrete structure layer.

The laminated floor slab is configured by adopting a ground heating pipe straight groove and a unidirectional stress reinforced concrete floor slab, is arranged along the plate crossing direction and is spaced

And arranging the ground heating folding grooves at the position of the composite floor slab with low positive and negative bending moment values.

The straight grooves of the ground heating pipes are arranged at intervals at the positive bending moment part of the composite floor slab, the compressive stress area of the cross section of the composite floor slab is divided into relatively independent plate ribs, the plate ribs are cut into half ribs by the ground heating folding grooves, the ground heating pipe grooves are recessed into the composite floor slab structure layer, and reinforcing ribs are arranged at the stress loss part of the formed composite floor slab.

The ground heating pipe groove is 50mm deep and 80mm wide.

The invention has the advantages that the invention adopts the process of assembling the prior composite floor slab and the ground heating pipe; the method is characterized in that a steel bar concrete configuration form in a composite floor slab is designed according to the current standard through analysis of stress of each cross section in the composite floor slab with an open floor heating pipe groove, and the fine stone concrete process of installing a ground heating pipe is omitted on the premise that the thickness of the steel bar concrete structure layer of the original composite floor slab is not increased and the structure stress configuration in the composite floor slab with the floor heating open pipe groove plate rib is scientific, reasonable, firm and safe.

The design of the floor slab with the floor heating pipe, the channel slab and the rib composite floor slab has universality, the slab span of 4200 mm-5700 mm large span slab type is developed together, the prefabricated reinforced concrete layer is increased by 10mm, the post-cast layer concrete is 80mm, the composite thickness is 140mm, and two rectangular reinforced concrete half ribs with the thickness of 140mm are added, so that the purposes of enhancing the rigidity and the strength of the prefabricated half-finished product can be achieved, the post-cast process is facilitated, and the prefabricated half-finished product can be better protected.

For medium and small cities which do not have the prefabrication condition for manufacturing composite floor slabs temporarily, the floor slab concrete and steel bar configuration design is carried out according to the positive and negative bending moment values of a unidirectional stressed floor slab and the internal stress of a floor slab with an underground heating open pipe groove and semi-ribbed reinforced concrete floor slab, an underground heating pipe groove steel mold is applied, the floor slab with the underground heating pipe groove and cast-in-place floor slab is cast by a formwork, the fine stone concrete process of installing an underground heating pipe on the finished floor slab is also saved, the floor slab with the underground heating pipe groove slab rib, the 4500-5700 mm large-span floor slab with the underground heating pipe groove and prefabricated reinforced concrete rib which is applied according to the process principle of the floor slab, and the underground heating pipe groove inner mold is arranged on the floor slab formwork, and the cast-in-place reinforced concrete floor slab is also recessed into a floor slab structure layer, so that the effects of saving one layer of concrete, lightening dead weight, reducing field manual wet work.

Drawings

Fig. 1 is a perspective view of a prefabricated floor slab with a floor heating pipe slot.

FIG. 2 is a perspective view of a composite floor slab with a ground heating pipe slot after concrete is poured for the second time.

Figure 3 is a plan view of a 4500mm plate span inside, with a floor heating pipe groove composite floor precast element.

FIG. 4 is a plan view of a post-cast concrete slab with 4500mm span-inside space and heating pipe slots for secondary pouring of composite floor slabs.

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 6 is a cross-sectional view taken at the position B-B in FIG. 3;

FIG. 7 is a cross-sectional view taken at the C-C position of FIG. 4;

fig. 8 is a plan view of a prefabricated layer of a large-span floor heating pipe groove with a prefabricated reinforced concrete ribbed slab.

Fig. 9 is a plan view of a large-span floor heating pipe groove after secondary pouring with a prefabricated reinforced concrete rib plate type.

FIG. 10 is a cross-sectional view taken at the D-D position of FIG. 8;

FIG. 11 is a cross-sectional view taken at the location E-E in FIG. 8;

FIG. 12 is a sectional view taken at the F-F position in FIG. 8;

FIG. 13 is a sectional view taken along the line G-G in FIG. 8;

FIG. 14 is a sectional view taken at the H-H position in FIG. 8;

FIG. 15 is a cross-sectional view taken at the location I-I of FIG. 9;

FIG. 16 is a partial view of an earth heating duct;

FIG. 17 is a schematic view of an unclosed threaded stirrup;

FIG. 18 is a schematic view of a one-way plate end mount configuration;

FIG. 19 is a schematic view of a one-way continuous plate mid-mount configuration;

FIG. 20 is a schematic view of a reinforcement strip for a patchwork of unidirectional sheets.

Wherein: 1. the high-strength iron triangular rib prefabricated net rack, 2, a ground heating pipe groove, 3, a composite floor prefabricated layer, 4, a composite floor post-cast reinforced concrete structure layer, 5, a ground heating pipe straight groove, 6, a ground heating folding groove, 7, a screw iron unclosed hoop rib rack, 8, a half rib, 9, a reinforcing rib, 10, a support, 11 and a one-way plate splicing and reinforcing rib.

Detailed Description

The invention is further described in detail below with reference to the accompanying drawings:

a semi-rib composite floor slab with a ground heating pipe slot is provided with an open ground heating pipe slot 2, on the premise of not increasing the thickness of the original composite floor slab structure layer, the ground heating pipe slot 2 is recessed into the composite floor slab post-cast reinforced concrete structure layer 4, and the upper opening of the ground heating pipe slot 2 is level with the surface of the post-cast reinforced concrete structure layer 4 of the composite floor slab.

The ground heating pipe groove 2 is 50mm deep and 80mm wide.

The laminated floor slab is configured by adopting the straight grooves 2 of the ground heating pipes and the unidirectional stress reinforced concrete floor slab, is arranged along the span direction of the slabs and is arranged at intervals,

the ground heating return groove 6 is arranged at the position of the composite floor slab with low positive and negative bending moment values.

The straight grooves 5 of the ground heating pipes are arranged at intervals at the positive bending moment part of the composite floor slab, the compressive stress area of the cross section of the composite floor slab is divided into relatively independent plate ribs, the plate ribs are cut into half ribs 8 by the ground heating folding grooves 6, the ground heating pipe grooves 2 are recessed into the structural layer of the composite floor slab, and reinforcing ribs 9 are arranged at the stress loss part of the formed composite floor slab.

1. When the span of the composite floor slab is within 4500mm, the slab is a one-way stress slab, the thickness of a prefabricated layer of the reinforced concrete floor slab is 50mm, the thickness of a post-cast layer is 80mm, the thickness of the composite floor slab is 130mm, the width of a basic slab is 1800mm, and a slab width adjusting slab can be arranged according to the depth of a room. The ground heating pipe groove 2 is recessed into the composite floor slab post-cast reinforced concrete structural layer 4, the upper opening of the ground heating pipe groove 2 is flush with the surface of the composite floor slab post-cast reinforced concrete structural layer 4, the ground heating pipe groove 2 is 50mm deep and 80mm wide, and the bottom corner of the groove is a round corner. The ground heating pipe straight grooves 5 are arranged at the upper part of the positive bending moment area of the floor slab and are arranged at intervals along the plate span direction with the best internal stress effect of the reinforced concrete floor slab, the ground heating folding grooves 6 are arranged at the positions with low positive and negative bending moment values of the laminated floor slab and are communicated with the ground heating pipe straight grooves 5, and the ground heating pipe grooves 2 are continuously folded back in one room. The laminated floor slab calculates the internal stress and arrangement of reinforcement according to the positive and negative bending moments of unequal-distance multi-span continuous unidirectional slabs, the laminated floor slab is fabricated by using a high-strength iron triangular reinforcement prefabricated net rack 1 and dry and hard concrete, the reinforcement at the upper part of the high-strength iron triangular reinforcement prefabricated net rack 1 leaves a free space for continuous back turning and turning of a ground heating folding groove 6, a concrete compressive stress area at the upper part of the floor slab is partitioned into relatively independent parallel plate ribs by a ground heating pipe straight groove 5, the ground heating folding groove 6 cuts the plate ribs into half ribs 8, the bottom of the semi-circular arc of the ground heating folding groove 6 is matched with a shoe-shaped reinforcement to be covered, the shoe-shaped reinforcement is welded in the prefabricated layer reinforcement net rack, the negative bending moment area of a continuous slab middle support is reinforced by the plate bending moment negative rib of the non-ground heating folding groove 6, the negative bending moment rib and the construction rib are prefabricated into a net rack and the net; the inner mould of the ground heating pipe slot 2 is made of steel material with the weight of the concrete with the section of the triple pipe slot, and is sleeved and inserted in sections, the leg belt of the mould is slightly divided, the rear cast-in-place concrete of the floor slab is placed on the rear cast-in-place reinforced concrete structure layer 4 of the composite floor slab before the rear cast-in-place concrete of the floor slab, and the rear cast-in-place reinforced concrete structure layer 4 of the composite; the bottom and two walls of the ground heating pipe groove 2 are provided with an extruded sheet heat insulation layer with the thickness of 20mm, a reflection film and two radiating pipes, and the upper surfaces of the two radiating pipes are filled and leveled by mortar.

2. When the span of the composite floor slab is more than 4500mm, the slab is a bidirectional stress slab, the thickness of a precast reinforced concrete layer of the composite floor slab is 60mm, the thickness of a post-cast reinforced concrete structure layer of the composite floor slab is 80mm, the thickness of the composite floor slab is 140mm, and two rectangular reinforced concrete half ribs 8 with the thickness of 140mm are added on the composite floor slab, so that the aims of enhancing the rigidity and the strength of the precast semi-finished product can be achieved, the post-cast process is facilitated, and the precast semi-finished product can be better protected. Before the post-cast reinforced concrete structural layer 4 of the post-cast composite floor slab, a screw-thread iron unclosed stirrup frame 7 is arranged at a concrete compression area of the composite floor slab.

For medium and small cities which do not have the prefabrication condition for manufacturing the composite floor slab temporarily, the configuration design of the floor slab concrete and the reinforcing steel bars is carried out according to the positive and negative bending moment values of the unidirectional stressed floor slab and the internal stress of the floor slab with the local heating pipe groove 2, the local heating pipe groove 2 steel bar concrete cast-in-situ floor slab is cast by a formwork, the working procedure of installing fine stone concrete on the finished floor slab by a local heating pipe is also saved, the composite floor slab with the local heating pipe groove 2, the 4500-5700 mm large span which is extended and applied according to the process principle, the local heating pipe groove 2, the floor slab with the prefabricated reinforcing steel bar concrete rib and the internal mold of the local heating pipe groove 2 on the floor slab formwork are also saved, the cast-in-situ reinforced concrete floor slab is also recessed into the floor slab structure layer by the ground heating pipe groove 2, the effects of saving one layer of concrete, lightening the dead weight, reducing the field manual wet operation and.

At the position of the wall or beam support 10 of the composite floor slab, the high-strength iron triangular rib prefabricated net rack of the composite floor slab extends into the wall or beam.

And (3) at the splicing joint of the composite floor slab, after the upper part of the prefabricated layer 3 of the composite floor slab is provided with the unidirectional plate splicing and reinforcing steel bars 11, pouring the composite floor slab and then pouring the reinforced concrete structure layer 4.

The invention has the advantages that the invention adopts the process of assembling the prior composite floor slab and the ground heating pipe; the method is characterized in that a steel bar concrete configuration form in a composite floor slab is designed according to the current standard through analysis of stress of each cross section in the composite floor slab with an open floor heating pipe groove, and the fine stone concrete process of installing a ground heating pipe is omitted on the premise that the thickness of the steel bar concrete structure layer of the original composite floor slab is not increased and the structure stress configuration in the composite floor slab with the floor heating open pipe groove plate rib is scientific, reasonable, firm and safe.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.