CN213805869U - Steel beam and prefabricated floor connecting structure - Google Patents
Steel beam and prefabricated floor connecting structure Download PDFInfo
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- CN213805869U CN213805869U CN202022746612.9U CN202022746612U CN213805869U CN 213805869 U CN213805869 U CN 213805869U CN 202022746612 U CN202022746612 U CN 202022746612U CN 213805869 U CN213805869 U CN 213805869U
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Abstract
The utility model discloses a connecting structure of a steel beam and a precast floor slab, which comprises a steel beam, a stud arranged perpendicular to the upper end surface of the steel beam and a pair of precast floor slabs which are respectively arranged on the two sides of the stud above the steel beam and are arranged with a preset gap; the prefabricated floor slab is characterized in that a prefabricated floor slab stressed steel bar extending along the length direction of the prefabricated floor slab is arranged in the prefabricated floor slab, the prefabricated floor slab stressed steel bar protrudes out of the prefabricated floor slab, the steel beam and the prefabricated floor slab are connected into a whole through post-cast concrete, and an additional stressed steel bar connected with the prefabricated floor slab stressed steel bar is arranged in the post-cast concrete. Above-mentioned girder steel and precast floor slab connection structure can practice thrift the truss muscle, reduce the construction degree of difficulty, improve the efficiency of construction, can be as a whole with precast floor slab and girder steel with the help of post-cast concrete connection, promotes whole rigidity.
Description
Technical Field
The utility model relates to a building engineering technical field, in particular to girder steel and prefabricated floor connection structure.
Background
The fabricated steel structure has the characteristics of high industrialization degree, high construction speed, energy saving, water saving, land saving, field pollution reduction, good anti-seismic performance and the like in a construction field, is low-carbon, environment-friendly and recyclable, and meets the requirement of sustainable development.
The way of traditional steel construction floor often is to lay truss building carrier plate on the girder steel, and link together building carrier plate and girder steel through the penetrability blind pin, then pour concrete on truss building carrier plate, must be after installation building carrier plate when adopting this kind of scheme, just can weld the penetrability blind pin again, it is great to cause the construction degree of difficulty, the wayward construction quality, engineering cost increases etc, simultaneously because the building carrier plate thickness is thinner, need lay the backing plate when pouring concrete on it, otherwise can arouse the damage or the deformation of building carrier plate.
Therefore, how to solve the assembly construction problem of the steel structure floor slab becomes a technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a girder steel and precast floor slab connection structure, this connection structure can practice thrift the truss muscle, reduce the construction degree of difficulty, improve the efficiency of construction, can be connected precast floor slab and girder steel as a whole with the help of post-cast concrete, promote whole rigidity.
In order to achieve the purpose, the utility model provides a connecting structure of a steel beam and a precast floor slab, which comprises a steel beam, a stud arranged perpendicular to the upper end surface of the steel beam and a pair of precast floor slabs which are respectively erected on two sides of the stud above the steel beam and are arranged with a preset gap;
the prefabricated floor slab is characterized in that a prefabricated floor slab stressed steel bar extending along the length direction of the prefabricated floor slab is arranged in the prefabricated floor slab, the prefabricated floor slab stressed steel bar protrudes out of the prefabricated floor slab, the steel beam and the prefabricated floor slab are connected into a whole through post-cast concrete, and an additional stressed steel bar connected with the prefabricated floor slab stressed steel bar is arranged in the post-cast concrete.
Optionally, the end of the prefabricated floor slab is in a second-order step shape, a first additional steel bar is erected between the upper portions of the first steps of the pair of prefabricated floor slabs, and a second additional steel bar is erected between the upper portions of the second steps of the pair of prefabricated floor slabs.
Optionally, the precast floor slab stressed steel bars comprise bottom layer stressed steel bars penetrating through the side face of the first step and top layer stressed steel bars penetrating through the side face of the second step, and the top layer stressed steel bars are connected through additional stressed steel bars penetrating through the post-cast concrete.
Optionally, precast floor slab distribution steel bars perpendicular to the precast floor slab stressed steel bars are arranged in the precast floor slab.
Optionally, additional distribution steel bars perpendicular to the additional stressed steel bars are arranged in the post-cast concrete.
Optionally, the studs are arranged in two rows, the two rows of studs being symmetrically arranged along the central axis of the steel beam.
Compared with the prior art, the utility model provides a girder steel and precast floor connection structure pour the concrete after with the precast floor slab at both ends respectively with the help of precast floor slab atress reinforcing bar, the additional atress reinforcing bar of connecting precast floor slab atress reinforcing bar pour the concrete after with respectively and be connected as a whole, it is fixed with girder steel connection with the help of the peg that the girder steel up end set up, make the precast floor slab of girder steel both sides, the girder steel is through the concrete after pouring, additional atress reinforcing bar and peg are connected for a whole, the bulk rigidity is improved, truss muscle and construction cost have been practiced thrift, the efficiency of construction is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Figure 1 is the embodiment of the utility model provides a girder steel and precast floor slab connection structure's schematic diagram.
Wherein:
1-precast floor slab, 2-steel beam, 3-stud, 4-bottom layer stressed steel bar, 5-top layer stressed steel bar, 6-additional stressed steel bar, 7-precast floor slab distributed steel bar, 8-additional distributed steel bar, 9-first additional steel bar, 10-second additional steel bar and 11-post-cast concrete.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic view of a connection structure of a steel beam and a precast floor slab according to an embodiment of the present invention.
The connecting structure of the steel beam and the precast floor slab comprises a steel beam 2 and a pair of precast floor slabs 1 which are erected at two sides of the steel beam 2 by end parts, studs 3 are welded on the upper end surfaces of the steel beam 2, and the steel beam 2 is fixedly connected by means of post-cast concrete 11 and the studs 3; the prefabricated floor slab 1 is internally provided with prefabricated floor slab stressed steel bars extending along the length direction, the prefabricated floor slab stressed steel bars protrude outwards relative to the end part of the prefabricated floor slab 1, additional stressed steel bars 6 are laid in the pouring process of the post-cast concrete 11, the prefabricated floor slab stressed steel bars of the pair of prefabricated floor slabs 1 are connected by means of the additional stressed steel bars 6, the pair of prefabricated floor slabs 1 are connected into a whole by means of the post-cast concrete 11 and the additional stressed steel bars 6, and therefore the steel beam 2 and the pair of prefabricated floor slabs 1 are connected into a whole through the post-cast concrete 11, the studs 3 and the additional stressed steel bars 6.
The utility model provides an in the embodiment, girder steel 2 specifically adopts the I-steel, and the welding of toggle pin 3 is at the up end of girder steel 2 also the last flange of I-steel, and toggle pin 3 can set up to two, and two are listed as the axis symmetry of toggle pin 3 with girder steel 2, and each is listed as toggle pin 3 and evenly sets up with the interval of predetermineeing. A pair of precast floor slabs 1 are arranged with end faces facing each other, and end portions of the pair of precast floor slabs 1 are erected above the steel beams 2 and on both sides of the studs 3, respectively. In order to ensure the strength of the prefabricated floor slab 1, prefabricated floor slab stress steel bars and prefabricated floor slab distribution steel bars 7 are usually arranged in the prefabricated floor slab 1, the prefabricated floor slab stress steel bars are arranged along the length direction of the prefabricated floor slab 1 and protrude 3-4 cm relative to the end part of the prefabricated floor slab 1, and the prefabricated floor slab distribution steel bars 7 are perpendicular to the prefabricated floor slab stress steel bars. The utility model discloses an use the prefabricated floor atress reinforcing bar of a pair of prefabricated floor 1 of additional atress reinforcing bar 6 connection at the in-process of pouring of post-cast concrete 11, connect into a whole with a pair of prefabricated floor 1 after 11 shaping of post-cast concrete.
For optimizing above-mentioned embodiment, this application sets up precast floor 1's tip into two sections step forms, and in girder steel and precast floor connection structure, precast floor 1's first step is set up on girder steel 2, sets up and forms wide clearance narrow down between a pair of precast floor 1 above girder steel 2. The prefabricated floor stressed steel bars penetrating through the side surface of the first step and protruding out of the end portion of the prefabricated floor 1 are called bottom layer stressed steel bars 4 according to the position difference of the prefabricated floor stressed steel bars, and the prefabricated floor stressed steel bars penetrating through the side surface of the second step and protruding out of the end portion of the prefabricated floor 1 are called top layer stressed steel bars 5.
Because the bottom clearance between a pair of precast floor slabs 1 is narrower, the connection rigidity can be ensured by the aid of the bottom stressed steel bars 4 after the post-cast concrete 11 is formed, the additional stressed steel bars 6 are only connected between the top stressed steel bars 5 of the pair of precast floor slabs 1, the connection between the top stressed steel bars 5 and the additional stressed steel bars 6 can be physical connection (such as welding or binding connection) of the top stressed steel bars and the additional stressed steel bars, or the top stressed steel bars 5 and the additional stressed steel bars 6 are not directly connected, but after the post-cast concrete 11 is formed, the additional stressed steel bars 6 and the top stressed steel bars 5 are overlapped, dislocated or attached, and the connection rigidity of the precast floor slabs 1 is improved together.
Optionally, in the connection structure of the steel beam and the precast floor slab, a first additional steel bar 9 is erected on the upper end face of a first step, a second additional steel bar 10 is erected on the upper end face of a second step, and the length of the second additional steel bar 10 is greater than that of the first additional steel bar 9; the rigidity of the post-cast concrete 11 connecting a pair of precast floor slabs 1 is further improved by the arrangement of the first additional reinforcing bars 9 and the second additional reinforcing bars 10.
Further, additional distribution steel bars 8 are further arranged in the post-cast concrete 11, the additional distribution steel bars 8 are perpendicular to the additional stress steel bars 6, the additional distribution steel bars 8 are generally laid in two layers according to a set interval, the first layer is laid at the height of the first additional steel bars 9 layers, the second layer is laid at the height of the additional stress steel bars 6 layers, the connection rigidity of the post-cast concrete 11 after molding is improved, and the post-cast concrete 11 is flush with the top surface of the prefabricated floor slab 1 after molding.
The construction sequence of the steel beam and precast floor slab connection structure is as follows:
the upper end face of the steel beam 2 is welded with a stud 3;
a pair of precast floor slabs 1 are adjacently erected above the steel beam 2 and on two sides of the stud 3 at the end parts;
sealing the contact position of the precast floor slab 1 and the steel beam 2;
and pouring post-cast concrete 11 into a gap between the ends of the pair of prefabricated floor slabs 1 above the steel beam 2, and placing an additional stressed steel bar 6 to connect the pair of prefabricated floor slabs 1 in the pouring process of the post-cast concrete 11.
Wherein, the step of welding the toggle pin 3 at the up end of girder steel 2 is: evenly weld the peg 3 according to the interval that sets for at the upper flange of I-steel girder 2, the peg 3 welds to be two, and two lists of pegs 3 are arranged for the web symmetry of I-steel girder 2 relatively. After the stud 3 is welded, corrosion prevention treatment is required. This application is through carrying out welding stud 3 before setting up prefabricated floor 1 and pouring post-cast concrete 11, and the construction of being convenient for improves the efficiency of construction.
The precast floor slab 1 needs to be processed in advance before the stud 3 is welded on the upper end face of the steel beam 2, and in order to reduce the pouring amount of post-poured concrete 11 and accelerate the construction progress of a construction site, the end face of the concrete precast floor slab 1 is particularly set to be step-shaped, specifically to be two-step-shaped. And setting a mould according to the shape and the size of the precast floor slab 1, and setting the side mould for end part forming into an inverted step-shaped side mould with a wide upper part and a narrow lower part. And finishing the arrangement of the prefabricated floor stressed steel bars and the prefabricated floor distribution steel bars 7 according to the design requirements, simultaneously extending the prefabricated floor stressed steel bars at the top and the bottom, namely the top layer stressed steel bars 5 and the bottom layer stressed steel bars 4 out of the side formwork according to the specified length, pouring concrete, maintaining and demolding.
The method comprises the following steps of erecting a pair of precast floor slabs 1 above the steel beam 2 and on two sides of the stud 3 by adjacent end parts: according to the calculation, a plurality of independent supports for supporting the precast floor slabs 1 are arranged, the support heights are adjusted, the end parts of the precast floor slabs 1 are erected on the top flanges of the steel beams 2, the precast floor slabs 1 are positioned at the outer sides of the studs 3, that is, a pair of precast floor slabs 1 are arranged at the two sides of the studs 3 with end parts. And (3) erecting the precast floor slab 1 behind the steel beam 2 and adjusting the position.
Before pouring concrete into the gap between the ends of the pair of precast floor slabs 1 and above the steel beam 2, the contact position between the precast floor slabs 1 and the steel beam 2 needs to be sealed and blocked, so that slurry leakage in the pouring process of the post-cast concrete 11 is avoided.
And finally, placing the additional stressed steel bars 6 and pouring later-poured concrete 11, and in addition, erecting first additional steel bars 9 above the first steps of the pair of prefabricated floors 1, erecting second additional steel bars 10 above the second steps, and vertically laying additional distribution steel bars 8 respectively at the height of the first additional steel bars 9 and the height of the second additional steel bars 10 or the additional stressed steel bars 6 according to requirements. The additional load-bearing reinforcing bars 6 are usually placed at the height of the top load-bearing reinforcing bars 5 because the bottom load-bearing reinforcing bars 4 protrude outward and the gap between the first steps of a pair of precast floor slabs 1 is small. Attention is paid to avoiding the studs 3 when the additional stressed steel bars 6, the first additional steel bars 9, the second additional steel bars 10 and the additional distribution steel bars 8 are placed, the post-cast concrete 11 is poured at last, and after the post-cast concrete 11 is formed, the pair of prefabricated floors 1 and the steel beams 2 supporting the prefabricated floors are connected into a whole through the additional stressed steel bars 6, the first additional steel bars 9, the second additional stressed steel bars 6, the studs 3 and the prefabricated floor stressed steel bars.
Compared with the prior art, cancelled truss building carrier plate, truss muscle and used, practiced thrift steel, prefabricated floor 1 all makes at the component factory simultaneously, only welds the toggle pin 3 and lays the reinforcing bar at the job site, has guaranteed the wholeness of structure promptly, the cost is reduced promotes construction speed again greatly, has and is showing the advantage, and the welding of toggle pin 3 is more convenient.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
It is right above the utility model provides a girder steel and precast floor slab connection structure have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. A steel beam and precast floor slab connection structure is characterized by comprising a steel beam (2), studs (3) arranged perpendicular to the upper end face of the steel beam (2), and a pair of precast floor slabs (1) which are respectively erected on two sides of the studs (3) above the steel beam (2) and arranged at preset gaps;
be equipped with in precast floor slab (1) along the precast floor slab atress reinforcing bar that its length direction extends, precast floor slab atress reinforcing bar protrusion in outside precast floor slab (1), girder steel (2) and a pair of precast floor slab (1) are connected as an organic wholely through post-cast concrete (11), just it is a pair of to be equipped with in post-cast concrete (11) precast floor slab (1) the additional atress reinforcing bar (6) of precast floor slab atress reinforcing bar.
2. The steel beam and precast floor connection structure of claim 1, wherein the ends of the precast floor slabs (1) are stepped in two steps, first additional reinforcing bars (9) are erected between the upper sides of the first steps of a pair of the precast floor slabs (1), and second additional reinforcing bars (10) are erected between the upper sides of the second steps of a pair of the precast floor slabs (1).
3. The steel beam and precast floor connection structure of claim 2, wherein the precast floor stress reinforcing bars include a bottom layer stress reinforcing bar (4) penetrating the side of the first step and a top layer stress reinforcing bar (5) penetrating the side of the second step, and a pair of the top layer stress reinforcing bars (5) are connected by the additional stress reinforcing bar (6) provided in the post-cast concrete (11).
4. The steel beam and precast floor slab connection structure according to claim 1, wherein precast floor slab distribution steel bars (7) are provided in the precast floor slab (1) to be perpendicular to the precast floor slab stress steel bars.
5. The steel beam and precast floor connection structure according to claim 1, wherein additional distribution bars (8) are provided in the post-cast concrete (11) to be perpendicular to the additional force-receiving bars (6).
6. The steel beam and precast floor connection structure according to claim 1, wherein the studs (3) are provided in two rows, and the two rows of studs (3) are symmetrically provided along the central axis of the steel beam (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022746612.9U CN213805869U (en) | 2020-11-24 | 2020-11-24 | Steel beam and prefabricated floor connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022746612.9U CN213805869U (en) | 2020-11-24 | 2020-11-24 | Steel beam and prefabricated floor connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213805869U true CN213805869U (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022746612.9U Active CN213805869U (en) | 2020-11-24 | 2020-11-24 | Steel beam and prefabricated floor connecting structure |
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| CN (1) | CN213805869U (en) |
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