CN216787644U - Prefabricated assembled steel bar truss open-pore beam - Google Patents
Prefabricated assembled steel bar truss open-pore beam Download PDFInfo
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- CN216787644U CN216787644U CN202123333971.2U CN202123333971U CN216787644U CN 216787644 U CN216787644 U CN 216787644U CN 202123333971 U CN202123333971 U CN 202123333971U CN 216787644 U CN216787644 U CN 216787644U
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Abstract
The utility model provides a prefabricated assembled steel bar truss open-hole beam which comprises a steel bar truss, a reserved sleeve and concrete, wherein the steel bar truss comprises a plurality of steel bar nets and stirrups, each steel bar net comprises upper longitudinal bars, lower longitudinal bars and wave-shaped truss web bars, the upper ends of the wave-shaped truss web bars are welded with the upper longitudinal bars, the lower ends of the wave-shaped truss web bars are welded with the lower longitudinal bars to form the steel bar nets, the reserved sleeve is arranged in the steel bar truss, and the steel bar truss open-hole beam is formed by pouring the concrete.
Description
Technical Field
The utility model belongs to the technical field of constructional engineering, and particularly relates to a prefabricated reinforced bar truss open-hole beam.
Background
At present, the concrete superposed beam in the widely applied fabricated structure is mostly cast and formed at the bottom in a factory and then transported to a construction site for secondary casting, so that a manufacturing mode of an integral stressed member is formed. The construction quality of the superposed surface has a great influence on mechanical performance indexes such as bending resistance and bearing capacity of the fabricated concrete superposed beam, however, the existing research on the bonding strength of the superposed surface is not deep enough. On the other hand, the concrete composite beam manufactured by the traditional method still cannot avoid dust pollution caused by cast-in-place concrete, and the prefabricated part comprises a steel reinforcement framework and concrete, so that the mass is large, and the transportation cost, the hoisting cost and the difficulty are high.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a prefabricated reinforced truss open-hole beam aiming at the existing problems.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a prefabricated assembled steel bar truss trompil roof beam, its characterized in that includes the steel bar truss, reserves sleeve pipe and concrete, the steel bar truss includes many pin reinforcing bar nets and stirrup, the reinforcing bar net includes that muscle, lower part are indulged muscle and wave truss web muscle in upper portion, the upper end of wave truss web muscle with muscle welded connection is indulged on upper portion, the lower extreme with the muscle welding is indulged to the lower part, forms a pin reinforcing bar net, reserve the sleeve pipe and locate in the steel bar truss, through pouring concrete forms steel bar truss trompil roof beam.
According to the scheme, two wave-shaped truss web reinforcements with opposite wave directions are arranged in the one steel reinforcement net and are welded and fixed with the two sides of the upper longitudinal reinforcement and the lower longitudinal reinforcement respectively.
According to the scheme, the reinforcing mesh is divided into a forward reinforcing mesh and an oblique reinforcing mesh, the upper longitudinal ribs and the lower longitudinal ribs of the forward reinforcing mesh are symmetrically arranged up and down, and the upper longitudinal ribs and the lower longitudinal ribs of the oblique reinforcing mesh are asymmetrically arranged.
According to the scheme, the wave crests and the wave troughs of the two wave-shaped web ribs correspond to each other.
According to the scheme, the stirrups are bound and connected with the upper longitudinal bars and the lower longitudinal bars and are arranged at intervals along the length direction of the steel bar truss.
According to the scheme, the reserved sleeve is arranged between the wave crest and the wave trough of the wave-shaped truss web rib, and no hoop rib is arranged at the reserved sleeve.
The utility model has the beneficial effects that: the prefabricated assembled steel bar truss open-hole beam is provided, the steel bar truss and the template are prefabricated in a factory, and the field welding operation is reduced; the concrete material is cast in situ on the construction site, so that the problems of large mass, high transportation and hoisting difficulty and high cost in the transportation process of the assembled member are solved; the adoption of the wave-shaped truss web reinforcement is convenient for factory prefabrication, has higher industrialization degree, and is particularly suitable for industrialized mass production; the device can realize the advance reservation of the holes of the equipment pipelines, is favorable for the integrated design of the equipment pipelines, is favorable for reducing the floor height, and achieves the aim of saving the manufacturing cost.
Drawings
Fig. 1 is a schematic structural view of a steel bar truss according to an embodiment of the present invention.
Fig. 2 is a front view of a steel bar truss according to an embodiment of the present invention.
Fig. 3 is a front view of a prefabricated reinforced truss open-hole girder according to an embodiment of the present invention.
Wherein: 1-a steel bar truss; 2-reserving a sleeve; 3-concrete; 4-stirrup; 5-upper longitudinal ribs; 6-lower longitudinal ribs; 7-wave-shaped abdominal muscle; 8-a forward reinforcing mesh; 9-oblique reinforcing mesh.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, it is to be understood that these examples are given solely for the purpose of illustration and are not intended to limit the scope of the utility model, which is to be determined by the appended claims as a matter of routine modification by those skilled in the art.
As shown in fig. 1, a prefabricated steel bar truss perforated beam comprises a steel bar truss 1, a reserved sleeve 2 and concrete 3, wherein the steel bar truss comprises a plurality of steel bar nets and stirrups 4, each steel bar net comprises an upper longitudinal bar 5, a lower longitudinal bar 6 and a wave-shaped truss web rib 7, the upper ends of the wave-shaped truss web ribs are welded with the upper longitudinal bars, the lower ends of the wave-shaped truss web ribs are welded with the lower longitudinal bars to form one steel bar net, the reserved sleeve is arranged in the steel bar truss, and the steel bar truss perforated beam is formed by pouring concrete.
The reinforcing mesh is divided into a forward reinforcing mesh 8 and an oblique reinforcing mesh 9, the upper longitudinal bars and the lower longitudinal bars of the forward reinforcing mesh are symmetrically arranged up and down, and the upper longitudinal bars and the lower longitudinal bars of the oblique reinforcing mesh are asymmetrically arranged. The forward reinforcing mesh is symmetrically arranged on two sides of the steel bar truss, and when the number of the upper longitudinal bars and the lower longitudinal bars of the prefabricated assembled steel bar truss open-hole beam is more than two, the oblique reinforcing mesh can be arranged in the middle of the steel bar truss, so that the strength of the steel bar truss is enhanced. The oblique reinforcing mesh is two, the top of the wave-shaped truss web rib in the reinforcing mesh is welded with one upper longitudinal rib, and the lower part of the wave-shaped truss web rib is welded with two lower longitudinal ribs.
Two wave-shaped truss web reinforcements with opposite wave directions are arranged in one steel reinforcement net and are respectively welded and fixed with the two sides of the upper longitudinal reinforcement and the lower longitudinal reinforcement. The wave crests and the wave troughs of the two wave-shaped abdominal ribs are corresponding.
The stirrups are connected with the upper longitudinal bars and the lower longitudinal bars in a binding mode and are arranged at intervals along the length direction of the steel bar truss.
The reserved sleeve is arranged between the wave crests and the wave troughs of the two wave-shaped truss web reinforcements of one steel mesh, and no hoop reinforcement is arranged at the reserved sleeve.
When the utility model is used for field construction, the utility model comprises the following contents:
1. the prefabricated steel bar truss is installed and bound in a factory, the upper longitudinal bars and the upper longitudinal bars of the wave-shaped web ribs are welded, the lower longitudinal bars and the lower longitudinal bars of the wave-shaped web ribs are welded to form a steel bar net, two positive wave-shaped web ribs with opposite fluctuation directions are arranged in the same steel bar net, the two positive wave-shaped web ribs are respectively positioned on two sides of the longitudinal bars, and the wave crest position of the former corresponds to the wave trough position of the latter.
2. And the corners of the prefabricated reinforced truss are provided with forward reinforced nets, and the middle part of the prefabricated reinforced truss can be provided with oblique reinforced nets according to requirements.
3. And hoops are arranged in a certain range at the end part of the prefabricated steel bar truss, and the hoops in a proper span range are arranged according to the construction requirement.
4. The steel bar trusses are composed of a plurality of forward or oblique steel bar nets and stirrups.
5. In the proper range of the span of the steel bar truss, a reserved sleeve with proper height is reserved according to the design requirement of equipment, so that the pipeline of the equipment can pass through conveniently.
6. And (3) the steel bar truss beam framework, the reserved sleeve and the beam template are assembled in a factory and then are transported to a construction site together, and then concrete is poured.
The truss web reinforcement shear-resistant beam is different from the traditional reinforced concrete beam stirrup shear-resistant beam, the truss web reinforcement shear-resistant beam is utilized, the mechanical production in a factory is facilitated, the efficiency is improved, and the distance between the wave crest and the wave trough of the wave-shaped truss web reinforcement can be adjusted according to different beam spans and stress states so as to meet the shear-resistant requirement; the penetration of the equipment pipeline is facilitated, the depth fusion of the equipment layer and the structural layer is facilitated, the layer height is reduced, and the construction cost is reduced.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which shall be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a prefabricated assembled steel bar truss trompil roof beam, its characterized in that includes the steel bar truss, reserves sleeve pipe and concrete, the steel bar truss includes many pin reinforcing bar nets and stirrup, the reinforcing bar net includes that muscle, lower part are indulged muscle and wave truss web muscle in upper portion, the upper end of wave truss web muscle with muscle welded connection is indulged on upper portion, the lower extreme with the muscle welding is indulged to the lower part, forms a pin reinforcing bar net, reserve the sleeve pipe and locate in the steel bar truss, through pouring concrete forms steel bar truss trompil roof beam.
2. The prefabricated steel bar truss open-hole beam as claimed in claim 1, wherein two wave-shaped truss web ribs with opposite wave directions are arranged in the steel bar net and are welded and fixed to two sides of the upper and lower longitudinal ribs respectively.
3. The prefabricated assembled steel bar truss open-cell girder of claim 2, wherein the steel bar mesh is divided into a forward steel bar mesh and an oblique steel bar mesh, upper and lower longitudinal bars of the forward steel bar mesh are symmetrically arranged up and down, and upper and lower longitudinal bars of the oblique steel bar mesh are asymmetrically arranged.
4. The prefabricated assembled steel bar truss open-hole beam as claimed in claim 3, wherein the wave crests and the wave troughs of the two wave-shaped truss web ribs correspond in position.
5. The prefabricated steel bar truss open-hole beam as claimed in claim 4, wherein the stirrups are bound and connected with the upper longitudinal bars and the lower longitudinal bars and are arranged at intervals along the length direction of the steel bar truss.
6. The prefabricated steel bar truss open-hole beam as claimed in claim 5, wherein the reserved sleeve is arranged between the wave crests and the wave troughs of two wave-shaped truss web reinforcements of the steel bar net, and no hoop reinforcement is arranged at the reserved sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123333971.2U CN216787644U (en) | 2021-12-28 | 2021-12-28 | Prefabricated assembled steel bar truss open-pore beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123333971.2U CN216787644U (en) | 2021-12-28 | 2021-12-28 | Prefabricated assembled steel bar truss open-pore beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216787644U true CN216787644U (en) | 2022-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123333971.2U Active CN216787644U (en) | 2021-12-28 | 2021-12-28 | Prefabricated assembled steel bar truss open-pore beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216787644U (en) |
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2021
- 2021-12-28 CN CN202123333971.2U patent/CN216787644U/en active Active
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