阅读说明：本技术 可拆卸换撑板及其施工方法 (Detachable support plate and construction method thereof ) 是由 杨赵停 柳俊 吴超 刘昌彬 邹梦根 刘佳 于 2020-05-06 设计创作，主要内容包括：本发明公开了一种可拆卸换撑板及其施工方法,该可拆卸换撑板包括可拆卸段型钢体,以及位于所述可拆卸段型钢体两端的固定段型钢体,所述可拆卸段型钢体与固定段型钢体无缝隙接触设置,并且所述可拆卸段型钢体相对于两端的所述固定段型钢体可拆卸连接,所述可拆卸段型钢体的长度小于或者等于后浇带区域的宽度。本发明具有降低材料成本和具有节能环保的效果。(The invention discloses a detachable supporting plate and a construction method thereof, wherein the detachable supporting plate comprises a detachable section steel body and fixed section steel bodies positioned at two ends of the detachable section steel body, the detachable section steel body and the fixed section steel bodies are arranged in seamless contact, the detachable section steel bodies are detachably connected relative to the fixed section steel bodies at two ends, and the length of the detachable section steel body is less than or equal to the width of a post-cast strip area. The invention has the advantages of reducing material cost and saving energy and protecting environment.)

1. The utility model provides a removable fagging that trades, its characterized in that is including dismantling the section shaped steel body, and is located can dismantle the fixed section shaped steel body at section shaped steel body both ends, can dismantle the seamless contact setting of section shaped steel body and fixed section shaped steel body, and can dismantle the section shaped steel body for both ends the fixed section shaped steel body can dismantle the connection, the length that can dismantle the section shaped steel body is less than or equal to the width of post-cast strip region.

2. The removable exchange strut of claim 1, wherein the removable segment steel body comprises a first section steel, and first end plates at both ends of the first section steel; the fixed section steel body includes second shaped steel, and is located the second end plate at second shaped steel both ends, it is adjacent first end plate can dismantle with the second end plate through the key body and be connected, so that can dismantle the section steel body for both ends the fixed section steel body can dismantle the connection.

3. The removable gussets of claim 2 wherein said first end plate has a snap groove, said latch is snap-fit into said snap groove to removably connect said removable segment with said fixed segment at opposite ends of said removable segment.

4. The removable stay plate of claim 2, wherein the first end plate is provided with a connecting hole, and the bolt is detachably connected to the connecting hole in a plug-in manner, so that the removable section steel bodies are detachably connected to the fixed section steel bodies at two ends.

5. The removable gussets of claim 2 wherein said first end plate has a threaded hole therein, said key being threadably removably connected to said threaded hole to removably connect said removable segment with respect to said fixed segments at opposite ends of said removable segment.

6. The removable gusset of claim 2, wherein the key is inserted through a through hole provided in the second end plate or welded thereto.

7. The removable gussets of claim 2 wherein said key is threaded through a threaded hole provided in said second end plate.

8. The removable gussets of claim 2 wherein said pins are rods or bolts.

9. The removable spreader plate of claim 2 wherein the second end plate distal from the removable segment is provided with reinforcing steel.

10. A method of replacing a spreader as claimed in any one of claims 1 to 9, comprising:

when the foundation slabs on the two sides of the post-cast strip area are constructed, at least part of the fixed section steel body is embedded into the foundation slabs on the two sides of the post-cast strip area;

and detachably connecting the detachable section steel body to the fixed section steel bodies on two sides of the post-cast strip area, and enabling the detachable section steel body to be in seamless contact with the fixed section steel bodies.

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a detachable and replaceable supporting plate and a construction method thereof.

Background

In the construction process of the underground structure of the deep foundation pit, I-shaped steel exchange supporting plates are required to be arranged at intervals in the post-cast strip area of the foundation slab to ensure the overall stability of the foundation pit, so that an overall force transmission system is formed for the foundation slabs on two sides of the post-cast strip area. After the main structure of the building is capped and settled stably, when concrete is poured in the post-cast strip area and reinforcing steel bars are configured to form a post-cast strip structure, the I-shaped steel exchange supporting plates are buried in the post-cast strip structure together, so that material waste is caused, and the construction cost is increased.

Disclosure of Invention

The invention aims to solve the technical problem of providing a detachable and replaceable supporting plate and a construction method thereof, and aims to solve the problem of high material cost caused by casting an I-steel replaceable supporting plate in a post-cast strip structure.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a removable fagging that trades, is including dismantling the section shaped steel body, and is located can dismantle the fixed section shaped steel body at section shaped steel body both ends, can dismantle the section shaped steel body and set up with the seamless contact of the fixed section shaped steel body, and can dismantle the section shaped steel body for both ends the connection can be dismantled to the fixed section shaped steel body, the length that can dismantle the section shaped steel body is less than or equal to the width in post-cast strip region.

Furthermore, the detachable supporting plate comprises a detachable section steel body and a detachable section steel body, wherein the detachable section steel body comprises first section steel and first end plates positioned at two ends of the first section steel; the fixed section steel body includes second shaped steel, and is located the second end plate at second shaped steel both ends, it is adjacent first end plate can dismantle with the second end plate through the key body and be connected, so that can dismantle the section steel body for both ends the fixed section steel body can dismantle the connection.

Furthermore, the detachable supporting plate provided by the invention is characterized in that the first end plate is provided with a clamping groove, and the bolt body is detachably connected in a clamping manner through the clamping groove, so that the detachable section steel bodies are detachably connected relative to the fixed section steel bodies at two ends.

Furthermore, a connecting hole is formed in the first end plate, and the bolt body is connected with the connecting hole in an inserting-type detachable mode, so that the detachable section steel bodies are detachably connected relative to the fixed section steel bodies at the two ends.

Further, according to the detachable and replaceable supporting plate provided by the invention, the first end plate is provided with a threaded hole, and the bolt body is detachably connected with the threaded hole in a threaded manner, so that the detachable section steel bodies are detachably connected relative to the fixed section steel bodies at two ends.

Further, the detachable and replaceable support plate is provided, and the bolt body is connected in an inserting mode or welded through a through hole formed in the second end plate.

Further, according to the detachable and replaceable support plate provided by the invention, the bolt body is in threaded connection through a threaded hole formed in the second end plate.

Further, the bolt body is a rod or a bolt.

Furthermore, the second end plate far away from the detachable section steel body of the detachable supporting plate is provided with a steel bar.

In order to solve the above technical problem, another technical solution provided by the present invention is: a construction method for detachable and replaceable supporting plates comprises the following steps:

when the foundation slabs on the two sides of the post-cast strip area are constructed, at least part of the fixed section steel body is embedded into the foundation slabs on the two sides of the post-cast strip area;

and detachably connecting the detachable section steel body to the fixed section steel bodies on two sides of the post-cast strip area, and enabling the detachable section steel body to be in seamless contact with the fixed section steel bodies.

Compared with the prior art, the detachable support plate and the construction method thereof provided by the invention have the advantages that the detachable section steel body and the fixed section steel bodies on the two sides of the detachable section steel body form the three-section detachable support plate, the detachable section steel body and the fixed section steel bodies on the two sides of the detachable section steel body are in contact without gap in the length direction, and when the detachable support plate is arranged between the foundation bottom plates of the post-cast strip area, the foundation bottom plates on the two sides of the post-cast strip area are integrally connected, so that the aim of integrally supporting and horizontally transferring the force of the foundation bottom plates is. After the foundation pit construction is completed, namely the support is changed, the detachable section steel body is detached, when concrete is poured in the post-cast strip area and reinforcing steel bars are configured to form a post-cast strip structure, the detachable section steel body does not need to be buried and poured in the post-cast strip structure, and therefore the material cost of the detachable section steel body is reduced. Because the detachable section steel body can be repeatedly recycled, the energy-saving and environment-friendly effects are achieved.

Drawings

FIG. 1 is a schematic side view of a removable exchange board according to an embodiment of the present invention;

FIG. 2 is a schematic side view of the removable section steel body of FIG. 1;

FIGS. 3 to 6 are schematic views of the structure taken along the line A-A in FIG. 2;

FIG. 7 is a schematic side view of the fixed segment steel body of FIG. 1;

fig. 8 to 9 are schematic construction views of the removable exchange board in the post-cast strip area between the foundation plates according to the embodiment of the invention.

Shown in the figure:

200. the detachable fagging that trades 210, detachable section shaped steel body, 211, first shaped steel, 212, first end plate, 213, connecting hole, 220, fixed section shaped steel body, 221, second shaped steel, 222, second end plate, 223, reinforcing bar, 230, the bolt body, 300, soleplate.

Detailed Description

The invention is described in detail below with reference to the attached drawing figures:

referring to fig. 1 to 8, an embodiment of the invention provides a detachable bracing plate 200, including a detachable section steel body 210 and fixed section steel bodies 220 located at two ends of the detachable section steel body 210, where the detachable section steel body 210 and the fixed section steel bodies 220 are arranged without gap contact, and the detachable section steel body 210 is detachably connected with respect to the fixed section steel bodies 220 at two ends, and a length L of the detachable section steel body 210 is less than or equal to a width W of a post-cast strip region, that is, L is less than or equal to W. The seamless contact arrangement means that no gap exists between the detachable section steel body 210 and the fixed section steel body 220.

Referring to fig. 2, in the detachable bracing plate 200 according to the embodiment of the present invention, the detachable steel section 210 includes a first steel section 211 and first end plates 212 located at two ends of the first steel section 211.

Referring to fig. 7, in the removable bracing plate 200 according to the embodiment of the present invention, the fixed-section steel body 220 includes a second section steel 221 and second end plates 222 disposed at two ends of the second section steel 221.

Referring to fig. 3 to 6, the first section steel 211 and the second section steel 221 according to the embodiment of the present invention include, but are not limited to, i-shaped steel. Of course, the section steel can be replaced by channel steel.

Referring to fig. 1, 2 and 7, the adjacent first end plate 212 and second end plate 222 are detachably connected by a bolt 230, so that the detachable section steel body 210 is detachably connected with respect to the fixed section steel bodies 220 at both ends.

Referring to fig. 1, the detachable connection of the plug 230 and the first end plate 212 includes:

the first mode is a snap-in detachable connection. Referring to fig. 1, 3 to 4, a clamping groove 213 is formed on the first end plate 212, and the bolt 230 is detachably connected to the clamping groove 213 in a clamping manner. That is, the first end plate 212 is clamped to the bolt 230 through the clamping groove 213. The connection can be dismantled to the card income formula, has the effect to dismantling the quick convenient dismouting of section shaped steel body 210, has improved the efficiency of construction.

Referring to fig. 3 to 4, the clamping groove 213 may be a U-shaped groove. The bottom surface of the U-shaped groove can be a plane or an arc surface. Wherein the bottom surface is the planar U-shaped groove can make can dismantle section shaped steel body 210 through bolt 230 joint on the fixed section shaped steel body 220 of both sides firmly, prevent that it is not hard up. Wherein the bottom surface is the U-shaped groove of arcwall face, the dismouting of the key body 230 of being convenient for to the realization is to dismantling fast section shaped steel body 210 fast.

Mode two, plug-in detachable connection. Referring to fig. 1, 5 to 6, the first end plate 212 is provided with a connecting hole 214, and the bolt 230 is detachably connected to the connecting hole 214 in an inserting manner.

Referring to fig. 5 to 6, the connection hole 214 may be a circular hole or a regular polygonal hole. So as to realize the plug-in detachable connection of the bolt body 230 and the connecting hole 214. When the bolt body 230 and the connecting hole 214 are connected in an inserting-type detachable mode, the reliability of connection between the detachable section steel body 210 and the fixed section steel body 220 can be improved, and the rapidity of connection between the detachable section steel body 210 and the fixed section steel body 220 can also be improved.

The bolt body 230 in the first and second modes can be rod pieces such as round steel, square steel or deformed steel.

And in a third mode, the threads are detachably connected. Referring to fig. 1, the first end plate 212 is provided with a threaded hole, and the bolt 230 is a bolt, and the bolt is detachably connected to the threaded hole of the first end plate 212. When the bolt body 230 and the first end plate 212 are detachably connected through threads, the reliable connection between the detachable section steel body 210 and the fixed section steel body 220 can be improved.

Referring to fig. 1 and 7, the connection manner of the bolt 230 and the second end plate 222 includes the following schemes:

in case of embodiment 1, the latch 230 may be detached from the second end plate 222.

Referring to fig. 1 and 7, a through hole (not shown) may be formed in the second end plate 222, and the bolt 230 is inserted into the through hole of the second end plate 222.

Referring to fig. 1 and 7, a threaded hole (not shown) may be formed on the second end plate 222, and the bolt 230 is screwed through the threaded hole on the second end plate 222.

The latch 230 can be detached from the second end plate 222, which has the effect of more flexible operation.

In the embodiment 2, the bolt 230 is not detachable from the second end plate 222, i.e. the bolt 230 is fixed on the second end plate 222.

Referring to fig. 1 and 7, a through hole may be formed in the second end plate 222, and the bolt 230 may be welded through the through hole in the second end plate 222. At this time, the plug 230 extends toward the first end plate 212, so that the plug 230 can be detachably connected to the first end plate 212. The bolt 230 is fixed on the second end plate 222, which has the effect of stable connection and preventing loosening. In this case, the bolt 230 may be a rod or a bolt.

Referring to fig. 7 and 8, in order to increase the reliability of the fixed-section steel body 220 disposed in the foundation slab 300, a reinforcing bar 223 is disposed on the second end plate 222 away from the detachable-section steel body 210.

Referring to fig. 8 to 9, an embodiment of the present invention further provides a construction method of the detachable exchange plate 200, including:

when the foundation slabs 300 on the two sides of the post-cast strip area are constructed, the fixed section steel bodies 220 are at least partially embedded into the foundation slabs 300 on the two sides of the post-cast strip area;

the detachable section steel body 210 is detachably connected to the fixed section steel body 220 on two sides of the post-cast strip area, and the detachable section steel body 210 and the fixed section steel body 220 are in seamless contact. When the fixed section steel bodies 220 are completely embedded into the foundation slab 300 on both sides of the post-cast strip region, the bolt bodies 230 are only required to extend out of the second end plate 222 and extend towards the direction of the post-cast strip region, so that the first end plate 212 can be detachably connected through the clamping grooves 213 or the clamping holes 214. In order to ensure the reliable arrangement of the detachable section steel body 210, the number of the clamping grooves 213 or the clamping holes 214 on the first end plate 212 is at least two.

According to the detachable exchange supporting plate 200 and the construction method thereof provided by the embodiment of the invention, the detachable section steel body 210 and the fixed section steel bodies 220 on the two sides of the detachable section steel body form the three-section detachable exchange supporting plate 200, the three are in contact and seamless arrangement in the length direction, and when the detachable exchange supporting plate 200 is arranged between the foundation bottom plates 300 in the post-cast strip area, the foundation bottom plates 300 on the two sides of the post-cast strip area form integral connection, so that the aim of integrally exchanging, supporting and horizontally transferring the force of the foundation bottom plates 300 is fulfilled. After the foundation pit construction is completed, namely the support replacement is finished, the detachable section steel body 210 is detached, and when concrete is poured in the post-cast strip area and the reinforcing steel bars 223 are configured to form the post-cast strip structure, the detachable section steel body 210 does not need to be buried and poured in the post-cast strip structure, so that the material cost of the detachable section steel body 210 is reduced. The detachable section type steel body 210 can be repeatedly recycled, so that the energy-saving and environment-friendly effects are achieved.

Referring to fig. 9, the removable exchange bracing plates 200 according to the embodiment of the present invention are spaced apart from the foundation slab 300 on both sides of the post-cast strip area, and the spacing between two adjacent removable exchange bracing plates 200 includes, but is not limited to, 3 meters. Can be adjusted according to the actual working condition.

The terms "first", "second", and the like used in the embodiments of the present invention are only defined for distinguishing the components at different positions, and are not limited to numbers, and should not be used as limitations of the embodiments of the present invention.

The present invention is not limited to the above-described embodiments, and various changes and modifications within the scope of the claims of the embodiments of the present invention are within the scope of the claims of the present invention.