CN217500567U - Connection structure of closed profiled sheet composite floor and steel reinforced concrete beam - Google Patents
Connection structure of closed profiled sheet composite floor and steel reinforced concrete beam Download PDFInfo
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- CN217500567U CN217500567U CN202221122702.3U CN202221122702U CN217500567U CN 217500567 U CN217500567 U CN 217500567U CN 202221122702 U CN202221122702 U CN 202221122702U CN 217500567 U CN217500567 U CN 217500567U
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Abstract
The utility model relates to a joint construction of closed profiled sheet composite floor slab and reinforcing bar concrete beam, including reinforcing bar concrete beam and the closed profiled sheet composite floor slab of supporting on reinforcing bar concrete beam, be equipped with the shaped steel reinforcing bar in the reinforcing bar concrete beam, the subsides of shaped steel reinforcing bar top flange have welded the short steel sheet of supporting, and the short steel sheet of supporting stretches out outside the reinforcing bar concrete beam and attached in closed profiled sheet composite floor bottom surface. The utility model discloses a set up the short steel sheet of determining deviation and as the bearing of closed profiled sheet composite floor, steel sheet itself has certain rigidity, can prevent effectively that support department profiled sheet composite floor's fracture and downwarping make the whole atress of reinforcing bar roof beam and profiled sheet composite floor, and the coordinated deformation has good construction operability and economic nature.
Description
Technical Field
The utility model relates to a building engineering technical field especially relates to a connection structure of closed profiled sheet composite floor and reinforcing bar concrete beam.
Background
With the continuous development of the building industry, the structural form of the building is more and more flexible and diversified. Some buildings are rooms with small floor height and small space, and some buildings have large floor height and large space building functions (such as a theater, a concert hall, a conference hall and the like), and the structural form adopts a form that a steel structure is combined with steel reinforced concrete. The construction period of the building is often short, if a common reinforced concrete floor slab is adopted, the work amount of erecting the template in a high and large space is large, time and labor are wasted, the template can be disassembled and the subsequent procedures are performed after the concrete reaches a certain strength, and the construction period is greatly influenced, so that in engineering practice, the structural form is usually a form of the floor slab without the template (such as a form of a steel bar truss floor bearing plate or a profiled steel plate combined floor slab).
When the closed profiled steel sheet composite floor slab is supported on a steel beam, the profiled steel sheet is usually directly placed on the surface of the steel beam, shear-resistant studs are welded on the surface of the steel beam through penetration to serve as shear-resistant keys, and after the steel bars are bound, concrete is poured to enable the steel beam and the floor slab to form a whole, so that the steel beam and the floor slab are stressed together, and the using function of a building is met. When the closed profiled steel sheet composite floor slab is supported on the steel reinforced concrete beam, the finished profiled steel sheet cannot pass through the concrete beam and is placed on the steel reinforced due to the existence of the beam stirrups, and the specification and the drawing set do not have clear regulation and practice on the connection structure, so that the connection structure for the closed profiled steel sheet composite floor slab and the steel reinforced concrete beam needs to be considered, and the requirements of structural stress and engineering construction are met.
Disclosure of Invention
The utility model aims to solve the problem that a joint construction of closed profiled sheet composite floor and reinforcing bar concrete beam is provided, this kind of joint construction can effectively prevent the fracture and the downwarping of support department profiled sheet composite floor, makes the whole atress of reinforcing bar roof beam and profiled sheet composite floor and coordinated deformation, has good construction operability and economic nature.
The utility model provides a technical scheme is: a connection structure of a closed profiled steel sheet composite floor slab and a steel reinforced concrete beam comprises the steel reinforced concrete beam and the closed profiled steel sheet composite floor slab supported on the steel reinforced concrete beam, wherein steel reinforced steel is arranged in the steel reinforced concrete beam, a supporting short steel plate is welded on an upper flange of the steel reinforced steel, and the supporting short steel plate extends out of the steel reinforced concrete beam and is attached to the bottom surface of the closed profiled steel sheet composite floor slab.
The supporting short steel plates are a plurality of supporting short steel plates distributed along the length direction of the steel reinforced concrete beam, the distance between every two adjacent supporting short steel plates is 200-300 mm, the thickness of each supporting short steel plate is 20-30 mm, and the width of each supporting short steel plate is 80 mm.
The length of the lap joint of the supporting short steel plate and the upper flange of the steel skeleton of the section steel is 100mm, and the lap joint of the supporting short steel plate and the upper flange of the steel skeleton of the section steel extends out of the steel skeleton concrete beam.
And vertical ribs extending into the closed profiled steel sheet composite floor slab are arranged on the supporting short steel sheet.
The utility model has the advantages that: the short steel plates with a certain distance are used for supporting the closed profiled steel sheet composite floor slab, the steel plates have certain rigidity, the profiled steel sheet composite floor slab at the support can be effectively prevented from cracking and downwarping, the steel rib beam and the profiled steel sheet composite floor slab are integrally stressed and cooperatively deformed, and the steel rib beam and profiled steel sheet composite floor slab has good construction operability and economy.
Drawings
Fig. 1 shows the connection between the profiled steel sheet composite floor and the steel skeleton beam when the plate rib of the closed profiled steel sheet is perpendicular to the steel skeleton beam.
Fig. 2 is a schematic view showing the connection between the profiled steel sheet composite floor and the steel skeleton beam when the plate ribs of the closed profiled steel sheet are parallel to the steel skeleton beam.
FIG. 3 is a projection view of the connection between the supporting short steel plate and the steel beam.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, the utility model discloses a steel reinforced concrete beam and the closed profiled sheet composite floor 6 of supporting on steel reinforced concrete beam are equipped with shaped steel reinforcing bar 1 in the steel reinforced concrete beam, and 1 top flanges of shaped steel reinforcing bar are pasted and are welded supporting short steel sheet 3, and supporting short steel sheet 3 stretches out outside the steel reinforced concrete beam and attached in 6 bottom surfaces of closed profiled sheet composite floor.
The short supporting steel plates 3 are a plurality of short supporting steel plates distributed along the length direction of the steel reinforced concrete beam, the distance between every two adjacent short supporting steel plates 3 is 200-300 mm, the thickness of each short supporting steel plate 3 is 20-30 mm, and the width of each short supporting steel plate is 80 mm.
The lap joint length of the supporting short steel plate 3 and the upper flange of the steel skeleton 1 is 100mm, and the length of the supporting short steel plate extends out of the steel skeleton concrete beam by 100 mm.
And vertical ribs 4 extending into the closed profiled steel sheet composite floor 6 are arranged on the supporting short steel plates 3.
The utility model discloses a short steel plate (the upper surface of general reinforcing bar is about 150mm from the concrete beam surface, the thickness of steel bar truss floor bearing plate or profiled steel sheet combination floor is about 120 mm) that is 20-30 mm thick, 80mm wide is welded on the top flange of girder steel, steel sheet and girder steel top flange overlap joint length 100mm, the length 100mm stretches out the concrete beam, is used for shelving the profiled steel sheet of combination floor bottom; along the length direction of the beam, the clear distance between adjacent short steel plates is 200-300 mm, and when the steel plates are arranged, stirrups of the steel skeleton beam are avoided, and the steel skeleton beam and the steel beam surface studs are arranged in a staggered mode; and (4) normally setting the bottom steel bars of the floor slab panel according to the drawing set and the standard requirement, and finally integrally pouring the bottom steel bars and the steel reinforced concrete beam.
When the plate ribs 7 of the closed profiled steel sheet shown in fig. 1 are perpendicular to the steel skeleton beam, the present invention is implemented as follows. The first step is as follows: normally erecting a template on the steel reinforced concrete beam, binding stirrups, placing the steel reinforced steel 1, positioning and welding beam surface studs 2. The second step is that: and (3) sticking and welding the pre-blanked supporting short steel plates 3 on the upper flange of the steel beam one by one, wherein the short steel plate is 20-30 mm thick and 80mm wide in specification, and the clear distance is 200-300 mm in the beam length direction (specifically determined according to the actual engineering condition, and the studs and the stirrups are avoided). The lap joint length of the steel plate and the upper flange of the steel beam is 100mm, and the length of the steel plate extending out of the concrete beam is 100 mm. The third step: and laying a closed profiled steel sheet 5 and laying and binding floor slab reinforcing steel bars. The fourth step: the floor slab and the steel beam are cast with concrete, the closed profiled steel sheet 5, the steel bar and the concrete form a profiled steel sheet combined floor slab 6, and an integral stress system is formed.
When the span of the profiled steel sheet is large or the thickness of the floor slab is large, the construction load is considered to be large, the vertical ribs 4 (determined according to calculation) can be arranged on the short steel sheet 3, and the overall rigidity of the short steel sheet bearing is enhanced.
When the plate ribs 7 of the closed profiled steel sheet are parallel to the steel skeleton beam as in fig. 2, the construction procedure is similar to that of fig. 1. When the floor reinforcing steel bars are vertical to the profiled steel sheet ribs, the reinforcing steel bars are directly placed on the plate ribs.
In fig. 1-2, the floor slab on the left side of the steel skeleton beam is a normal reinforced concrete floor slab 8, and the steel bars are normally laid and bound according to the drawing set. When the side floor slab is also a closed profiled steel sheet composite floor slab, the structure is the same as that of the right side of the steel skeleton beam.
FIG. 3 is a projection view of the connection between the supporting short steel plate and the steel beam. And the short steel plate 3 and the upper flange of the steel beam are welded by adopting a fillet weld of three-side girth welding, and the height t1 of a welding leg is 16 mm. The vertical ribs 4 are connected with the fillet welds at the two sides of the short steel plate, and the weld leg dimension t2 is 8 mm.
Claims (4)
1. The utility model provides a joint construction of closed profiled sheet composite floor and reinforcing bar concrete beam, characterized by: the steel reinforced concrete beam is internally provided with steel reinforced steel, the upper flange of the steel reinforced steel is welded and lapped with a short supporting steel plate, and the short supporting steel plate extends out of the steel reinforced concrete beam and is attached to the bottom surface of the closed profiled steel plate combined floor.
2. The structure for connecting a closed profiled steel sheet composite floor slab and a steel reinforced concrete beam as claimed in claim 1, wherein: the short supporting steel plates are distributed along the length direction of the steel reinforced concrete beam, the distance between every two adjacent short supporting steel plates is 200-300 mm, the thickness of each short supporting steel plate is 20-30 mm, and the width of each short supporting steel plate is 80 mm.
3. The structure for connecting a closed profiled steel sheet composite floor slab and a steel reinforced concrete beam as claimed in claim 1 or 2, wherein: the lapping length of the supporting short steel plate and the upper flange of the steel skeleton of the section steel is 100mm, and the length of the supporting short steel plate extending out of the steel skeleton concrete beam is 100 mm.
4. The structure for connecting a closed profiled steel sheet composite floor slab and a steel reinforced concrete beam as claimed in claim 1 or 2, wherein: the short supporting steel plate is provided with vertical ribs extending into the closed profiled steel plate composite floor slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221122702.3U CN217500567U (en) | 2022-05-11 | 2022-05-11 | Connection structure of closed profiled sheet composite floor and steel reinforced concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221122702.3U CN217500567U (en) | 2022-05-11 | 2022-05-11 | Connection structure of closed profiled sheet composite floor and steel reinforced concrete beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217500567U true CN217500567U (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221122702.3U Active CN217500567U (en) | 2022-05-11 | 2022-05-11 | Connection structure of closed profiled sheet composite floor and steel reinforced concrete beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN217500567U (en) |
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2022
- 2022-05-11 CN CN202221122702.3U patent/CN217500567U/en active Active
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