阅读说明：本技术 一种预制叠合楼板及其与支撑钢梁的连接结构 (Prefabricated coincide floor and connection structure with support girder steel thereof ) 是由 杨镇州 吴晓风 盛林峰 于 2020-12-07 设计创作，主要内容包括：本发明提供了一种预制叠合楼板及其与支撑钢梁的连接结构。预制叠合楼板包括楼板钢筋、叠合楼板本体和预埋件,楼板钢筋贯穿叠合楼板本体；预制叠合楼板与支撑钢梁的连接位置设置有预埋件,预制叠合楼板通过预埋件固定在所述支撑钢梁上,预埋件嵌入在叠合楼板本体的底部,预埋件的底部与叠合楼板本体的底部平行；预埋件的一端嵌入在叠合楼板本体的内部,另一端延伸至叠合楼板本体的外侧。预埋件向叠合楼板本体的外侧延伸一段距离,可以防止叠合楼板本体的边角被磕碰损坏；预埋件增加了预制叠合楼板的尺寸,可以避免因施工误差导致预制叠合楼板不能搁置在支撑钢梁上的问题。(The invention provides a prefabricated composite floor slab and a connecting structure of the prefabricated composite floor slab and a supporting steel beam. The prefabricated composite floor slab comprises floor slab reinforcing steel bars, a composite floor slab body and embedded parts, wherein the floor slab reinforcing steel bars penetrate through the composite floor slab body; the connecting position of the prefabricated composite floor slab and the supporting steel beam is provided with an embedded part, the prefabricated composite floor slab is fixed on the supporting steel beam through the embedded part, the embedded part is embedded in the bottom of the composite floor slab body, and the bottom of the embedded part is parallel to the bottom of the composite floor slab body; one end of the embedded part is embedded in the laminated floor slab body, and the other end of the embedded part extends to the outer side of the laminated floor slab body. The embedded part extends for a certain distance to the outer side of the laminated floor slab body, so that the corners of the laminated floor slab body can be prevented from being damaged by collision; the built-in fitting has increased the size of prefabricated coincide floor, can avoid leading to the problem that prefabricated coincide floor can not shelve on supporting the girder steel because of construction error.)

1. The prefabricated composite floor slab is characterized by comprising floor slab reinforcing steel bars, a composite floor slab body and embedded parts, wherein the floor slab reinforcing steel bars penetrate through the composite floor slab body; the embedded part is arranged at the connecting position of the prefabricated composite floor slab and the supporting steel beam, the prefabricated composite floor slab is fixed on the supporting steel beam through the embedded part, the embedded part is embedded in the bottom of the composite floor slab body, and the bottom of the embedded part is parallel to the bottom of the composite floor slab body; one end of the embedded part is embedded in the laminated floor slab body, and the other end of the embedded part extends to the outer side of the laminated floor slab body.

2. The prefabricated composite floor slab as claimed in claim 1, wherein the embedded parts are embedded metal parts, and one ends of the embedded metal parts are welded to the floor slab reinforcing steel bars.

3. The prefabricated composite floor slab as claimed in claim 2, wherein the embedded metal member is a steel plate or an iron plate.

4. A prefabricated composite floor slab as claimed in claim 1, wherein the bottom of said composite floor slab body is square.

5. A prefabricated composite floor slab according to claim 2, further comprising truss reinforcement embedded in said composite floor slab body, said floor slab reinforcement being positioned below said truss reinforcement.

6. The prefabricated composite floor slab as claimed in claim 5, wherein the truss steel bars, the floor slab steel bars and the embedded metal pieces are welded and connected in sequence from top to bottom; the number of the truss reinforcing steel bars and the number of the embedded metal parts are multiple, the plurality of truss reinforcing steel bars are arranged on the laminated floor slab body in parallel, and the extending direction of the truss reinforcing steel bars is perpendicular to the supporting steel beams; and the embedded metal pieces are respectively arranged below two ends of the truss steel bar.

7. The prefabricated composite floor slab of claim 5, wherein said truss reinforcement includes an upper chord reinforcement, a web reinforcement and two lower chord reinforcements; the upper chord steel bars are positioned above the two lower chord steel bars, and the upper chord steel bars and the two lower chord steel bars are arranged in parallel and in an isosceles triangle shape; the web member steel bars are welded between the upper chord steel bars and the lower chord steel bars; the upper chord steel bar is located the outside of coincide floor body, the lower chord steel bar is located the inside of coincide floor body, the upper end of web member reinforcing bar is located the outside of coincide floor body, the lower extreme of web member reinforcing bar is located the inside of coincide floor body.

8. A connection structure of a prefabricated composite floor slab and a supporting steel beam, wherein the supporting steel beam comprises a supporting steel plate, and the prefabricated composite floor slab of any one of claims 1 to 7 is connected with the supporting steel plate through the embedded parts.

9. The structure for connecting a prefabricated composite floor slab and a supporting steel beam as claimed in claim 8, wherein the supporting steel beam is I-shaped, the supporting steel plate is positioned on the top of the supporting steel beam, and the supporting steel plate is provided with shear studs; the floor slab reinforcing steel bars are connected with the shear-resistant studs.

10. The structure for connecting a prefabricated composite floor slab and a supporting steel beam as claimed in claim 9, wherein a concrete layer is arranged at a joint position where the prefabricated composite floor slab is connected with the supporting steel plate.

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a prefabricated composite floor slab and a connecting structure of the prefabricated composite floor slab and a supporting steel beam.

Background

In steel construction assembled structure, use prefabricated coincide floor usually, prefabricated coincide floor includes floor reinforcing bar and coincide floor body usually, and the floor reinforcing bar runs through coincide floor body. The opposite sides of the prefabricated composite floor slab typically rest on supporting steel beams.

However, the existing prefabricated composite floor slab and the construction method thereof have the following technical problems: in the transportation process of the existing prefabricated composite floor slab, the corner positions are easy to be collided and damaged; due to construction errors, the spacing between the support beams may be large and the opposite sides of the prefabricated composite floor slab may not be able to rest on the support beams at the same time.

Disclosure of Invention

The invention provides a prefabricated composite floor slab and a connecting structure of the prefabricated composite floor slab and a supporting steel beam, and aims to solve the technical problem.

In order to solve the technical problem, the invention provides a prefabricated composite floor slab, which comprises floor slab reinforcing steel bars, a composite floor slab body and embedded parts, wherein the floor slab reinforcing steel bars penetrate through the composite floor slab body; the embedded part is arranged at the connecting position of the prefabricated composite floor slab and the supporting steel beam, the prefabricated composite floor slab is fixed on the supporting steel beam through the embedded part, the embedded part is embedded in the bottom of the composite floor slab body, and the bottom of the embedded part is parallel to the bottom of the composite floor slab body; one end of the embedded part is embedded in the laminated floor slab body, and the other end of the embedded part extends to the outer side of the laminated floor slab body.

Optionally, the embedded part is an embedded metal part, and one end of the embedded metal part is welded to the floor slab reinforcing steel bar.

Optionally, the embedded metal part is a steel plate or an iron plate.

Optionally, the bottom of the composite floor slab body is square.

Optionally, the prefabricated composite floor slab further comprises truss reinforcing steel bars, the truss reinforcing steel bars are embedded into the composite floor slab body, and the floor slab reinforcing steel bars are located below the truss reinforcing steel bars.

Optionally, the truss reinforcing steel bars, the floor slab reinforcing steel bars and the embedded metal pieces are sequentially welded and connected from top to bottom; the number of the truss reinforcing steel bars and the number of the embedded metal parts are multiple, the plurality of truss reinforcing steel bars are arranged on the laminated floor slab body in parallel, and the extending direction of the truss reinforcing steel bars is perpendicular to the supporting steel beams; and the embedded metal pieces are respectively arranged below two ends of the truss steel bar.

Optionally, the truss reinforcing steel bars comprise upper chord reinforcing steel bars, web member reinforcing steel bars and two lower chord reinforcing steel bars; the upper chord steel bars are positioned above the two lower chord steel bars, and the upper chord steel bars and the two lower chord steel bars are arranged in parallel and in an isosceles triangle shape; the web member steel bars are welded between the upper chord steel bars and the lower chord steel bars; the upper chord steel bar is located the outside of coincide floor body, the lower chord steel bar is located the inside of coincide floor body, the upper end of web member reinforcing bar is located the outside of coincide floor body, the lower extreme of web member reinforcing bar is located the inside of coincide floor body.

The invention also provides a connecting structure of the prefabricated composite floor slab and the supporting steel beam, wherein the supporting steel beam comprises a supporting steel plate, and any one of the prefabricated composite floor slabs is connected with the supporting steel plate through the embedded part.

Optionally, the supporting steel beam is I-shaped, the supporting steel plate is located at the top of the supporting steel beam, and the supporting steel plate is provided with shear-resistant studs; the floor slab reinforcing steel bars are connected with the shear-resistant studs.

Optionally, a concrete layer is arranged at the joint position where the prefabricated composite floor slab and the supporting steel plate are connected.

According to the prefabricated composite floor slab and the connecting structure of the prefabricated composite floor slab and the supporting steel beam, the embedded parts are arranged to extend a distance to the outer side of the composite floor slab body, and the embedded parts can prevent the corners of the composite floor slab body from being damaged by collision in the process of transporting the prefabricated composite floor slab; the built-in fitting has increased the size of prefabricated coincide floor, can avoid leading to the problem that prefabricated coincide floor can not shelve on supporting the girder steel because of construction error.

Drawings

Fig. 1 is a schematic structural view of a prefabricated composite floor slab according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a reinforcement cage of a prefabricated composite floor slab according to an embodiment of the present invention;

fig. 3 is a schematic view of a connection node between a prefabricated composite floor slab and a support steel beam according to an embodiment of the present invention.

[ reference numerals are described below ]:

floor slab reinforcing steel bars-1, a composite floor slab body-2, embedded parts-3, truss reinforcing steel bars-4, upper chord reinforcing steel bars-41, web member reinforcing steel bars-42, hoisting points-5, shear-resistant studs-6, supporting steel beams-7 and supporting steel plates-71.

Detailed Description

To make the objects, advantages and features of the present invention more apparent, a prefabricated composite floor slab and a connection structure of the same with supporting steel beams according to the present invention will be described in detail with reference to the accompanying drawings. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

As shown in fig. 1-3, the embodiment provides a prefabricated composite floor slab, where the prefabricated composite floor slab includes a floor slab reinforcing steel bar 1, a composite floor slab body 2 and embedded parts 3, and the floor slab reinforcing steel bar 1 penetrates through the composite floor slab body 2; the embedded part 3 is arranged at the connecting position of the prefabricated composite floor slab and the supporting steel beam 7, the prefabricated composite floor slab is fixed on the supporting steel beam 7 through the embedded part 3, the embedded part 3 is embedded in the bottom of the composite floor slab body 2, and the bottom of the embedded part 3 is parallel to the bottom of the composite floor slab body 2; one end of the embedded part 3 is embedded in the laminated floor slab body 2, and the other end of the embedded part extends to the outer side of the laminated floor slab body 2. The embedded part 3 can be an embedded metal part or a high-strength composite plate, such as a steel plate or an iron plate; the embedded part 3 and the supporting steel beam 7 can be connected through welding or bolts; the floor slab reinforcing bars 1 are typically in the form of criss-cross reinforcing bar meshes, the composite floor slab body 2 is formed by casting concrete on the floor slab reinforcing bars 1, and the floor slab reinforcing bars 1 extend out of the composite floor slab body 2 by a distance for concrete casting with an adjacent prefabricated composite floor slab.

According to the prefabricated composite floor slab provided by the embodiment, the embedded part 3 is arranged to extend a distance to the outer side of the composite floor slab body 2, so that the embedded part 3 can prevent corners of the composite floor slab body 2 from being damaged by collision in the process of transporting the prefabricated composite floor slab; the size of the prefabricated composite floor slab is increased by the embedded part 3, and the problem that the prefabricated composite floor slab cannot be placed on the supporting steel beam 7 due to construction errors can be avoided.

Optionally, as shown in fig. 2 to 3, one end of the embedded part metal part is welded to the floor slab reinforcing steel bar 1. The firmness degree of the embedded metal part can be improved by the arrangement.

Alternatively, as shown in fig. 1, the bottom of the composite floor slab body 2 is square. The square composite floor slab body 2 is convenient to transport and assemble.

Optionally, as shown in fig. 1 to 3, the prefabricated composite floor slab further includes truss reinforcements 4, the truss reinforcements 4 are embedded in the composite floor slab body 2, and the floor reinforcements 1 are located below the truss reinforcements 4. Set up truss reinforcement 4 and can increase the intensity of prefabricated coincide floor, can set up a plurality of hoisting points 5 and be used for hoist and mount prefabricated coincide floor on truss reinforcement 4.

Optionally, as shown in fig. 1 to 3, the truss reinforcing steel bars 4, the floor slab reinforcing steel bars 1, and the embedded metal members are welded and connected in sequence from top to bottom; the number of the truss reinforcing steel bars 4 and the number of the embedded metal parts are multiple, the plurality of truss reinforcing steel bars 4 are arranged on the laminated floor slab body 2 in parallel, and the extending direction of the truss reinforcing steel bars 4 is perpendicular to the supporting steel beams 7; and the embedded metal pieces are respectively arranged below two ends of the truss steel bar 4. The firmness of the embedded metal part can be improved by the arrangement. As shown in fig. 1, at some corner positions (e.g. upper right corner positions) of the prefabricated composite floor slab, the corner positions may not be provided with embedded metal parts because the corner positions are not in direct contact with the supporting steel beams 7.

Optionally, as shown in fig. 2 to 3, the truss reinforcing steel bars 4 include an upper chord reinforcing steel bar 41, a web member reinforcing steel bar 42 and two lower chord reinforcing steel bars; the upper chord steel bars 41 are positioned above the two lower chord steel bars, and the upper chord steel bars 41 and the two lower chord steel bars are arranged in parallel and in an isosceles triangle shape; the web member reinforcing steel bars 42 are welded between the upper chord reinforcing steel bars 41 and the lower chord reinforcing steel bars; go up the chord steel bar 41 and be located the outside of coincide floor body 2, the lower chord steel bar is located the inside of coincide floor body 2, the upper end of web member reinforcing bar 42 is located the outside of coincide floor body 2, the lower extreme of web member reinforcing bar 42 is located the inside of coincide floor body 2. The strength of the prefabricated composite floor slab can be improved by arranging the truss reinforcing steel bars 4, and a plurality of hoisting points 5 can be arranged on the upper chord reinforcing steel bars 41 for hoisting the prefabricated composite floor slab.

Based on the same technical concept as the prefabricated composite floor slab, the embodiment further provides a connection structure of the prefabricated composite floor slab and the supporting steel beam, as shown in fig. 3, the supporting steel beam 7 includes a supporting steel plate 71, and the prefabricated composite floor slab is connected with the supporting steel plate 71 through the embedded part 3.

The utility model provides a pair of connection structure of prefabricated coincide floor and support girder steel 7, built-in fitting 3 has increased the size of prefabricated coincide floor, can avoid leading to the problem that prefabricated coincide floor can not shelve on support girder steel 7 because of construction error.

Optionally, as shown in fig. 3, the support steel beam 7 is I-shaped, the support steel plate 71 is located at the top of the support steel beam 7, and the shear studs 6 are arranged on the support steel plate 71; the floor slab reinforcing steel bars 1 are connected with the shear-resistant studs 6. The shear resistant effect of the structure can be improved by arranging the shear resistant studs 6.

Optionally, referring to fig. 3, a concrete layer is disposed at a joint position where the prefabricated composite floor slab is connected with the supporting steel plate 71. After the embedded metal part and the supporting steel plate 71 are welded, concrete can be poured at the welding position, so that the stability of the structure can be improved.

The shear-resistant studs 6 and the support steel beams 7 can be synchronously processed in a factory and then transported to the site for installation, and the embedded parts 3 can be arranged in the processing process of the prefabricated composite floor slab to form a whole and then transported to the site for installation. During on-site construction, firstly, the supporting steel beam 7 is installed, then, the prefabricated composite floor slab is installed and is placed on the upper flange of the supporting steel beam 7, then, the embedded metal piece is welded with the upper flange of the supporting steel beam 7, the floor slab steel bars 1 are connected with the shear-resistant studs 6, and finally, concrete is poured at the connected node positions.

In summary, according to the prefabricated composite floor slab and the connection structure of the prefabricated composite floor slab and the supporting steel beams 7, the embedded part 3 is arranged to extend a distance to the outer side of the composite floor slab body 2, and the embedded part 3 can prevent the corners of the composite floor slab body 2 from being damaged by collision in the process of transporting the prefabricated composite floor slab; the size of the prefabricated composite floor slab is increased by the embedded part 3, and the problem that the prefabricated composite floor slab cannot be placed on the supporting steel beam 7 due to construction errors can be avoided.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the present invention.