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Double-truss steel-concrete combined conversion reinforcing truss

A concrete and double-steel technology, which is applied in construction, building maintenance, building construction, etc., can solve problems such as inability to meet existing needs, and achieve the effect of easier guarantee of project quality, obvious reinforcement effect, and easier construction operation.

Pending Publication Date: 2022-07-01
SHANGHAI PUDONG ARCHITECTURAL DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The functional requirements and uses of the existing buildings cannot meet the existing needs. Therefore, on the basis of preserving the original building shape, it is necessary to reinforce and modernize it while meeting the existing use space, use function and safety performance requirements. Functional Transformation

Method used

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  • Double-truss steel-concrete combined conversion reinforcing truss
  • Double-truss steel-concrete combined conversion reinforcing truss
  • Double-truss steel-concrete combined conversion reinforcing truss

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A double-column steel-concrete composite conversion reinforced truss, such as Figure 1 to Figure 5 As shown, including the steel member and the upper chord 1 formed by increasing the cross-section of the existing concrete beam, the steel member includes the double-steel lower chord 2 arranged under the upper chord 1, the double-steel lower chord 2 arranged on the upper chord 1 and the double-steel lower chord The double-steel inclined web rod 3 and the double-steel straight web rod 4 between 2, the pre-embedded parts of the top chord for connecting the top chord 1 with the double-cut steel inclined web rod 3 and the double-cut steel straight web rod 4, and The lower chord connecting piece 5 used to connect the double-steel lower chord 2 with the double-steel inclined web 3 and the double-steel straight web 4. All steel members are connected by equal-strength butt welding, and the two ends of the final truss are connected. The steel members of the truss are connected wi...

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Abstract

The invention relates to a double-truss steel-concrete combined conversion reinforcing truss which comprises a steel member and an upper chord member formed after the section of an existing concrete beam is increased, and the steel member comprises a double-truss steel lower chord member, a double-truss steel diagonal web member, a double-truss steel straight web member, an upper chord member embedded part and a lower chord member connecting part which are arranged below the upper chord member. All the steel members are connected in an equal-strength butt welding mode, and the steel members at the two ends of the truss are connected with existing concrete frame columns with enlarged sections and additionally provided with connecting plates. Compared with the prior art, secondary stress and secondary deformation caused by unloading and load redistribution in the column extraction transformation process can be reduced or eliminated, new and old materials and components are easier to act together, deformation is easier to cooperate, rigidity and strength are greatly enhanced, the reinforcing effect is more obvious, construction operation is easier to achieve, and construction monitoring reliability is high; and the engineering quality is easier to guarantee.

Description

technical field [0001] The invention relates to the design field of column-extraction conversion structure, in particular to a double-column steel-concrete composite conversion and reinforcement truss. Background technique [0002] In recent years, with my country's social progress, the rapid development of national economic construction and the advancement of urbanization, the construction industry has developed rapidly, and people are paying more and more attention to the diversity and flexibility of structural layout. The functional requirements and uses of the existing buildings cannot meet the existing needs. Therefore, it is necessary to strengthen and modernize them while meeting the existing requirements for use space, use functions and safety performance on the basis of preserving the original building shape. Functional transformation. [0003] In many reinforcement and reconstruction projects in my country, we can see that it is a common and suitable method to inc...

Claims

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Application Information

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IPC IPC(8): E04G23/02
CPCE04G23/0218
Inventor 黄彬辉强国平宋雪艳罗尽华王明辉
Owner SHANGHAI PUDONG ARCHITECTURAL DESIGN & RES INST
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