Detachable prefabricated steel-concrete combined beam structure and manufacturing technique thereof

A prefabricated concrete slab, prefabricated assembly technology, applied in the direction of structural elements, long-strip structural components for load-bearing, building components, etc., can solve problems such as insufficient shear capacity of steel-concrete composite beams, and avoid premature The effect of cracking, overcoming concrete corrosion, and convenient replacement process

Pending Publication Date: 2018-10-12
ZHEJIANG INST OF COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of insufficient shear resistance of conventional steel-concrete composite beams, the present invention provides a detachable assembled steel-concrete composite beam with short construction period, low cost, simple manufacture and strong shear resistance and its manufacturing process

Method used

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  • Detachable prefabricated steel-concrete combined beam structure and manufacturing technique thereof
  • Detachable prefabricated steel-concrete combined beam structure and manufacturing technique thereof
  • Detachable prefabricated steel-concrete combined beam structure and manufacturing technique thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Embodiment 1: refer to Figure 1 to Figure 6, a detachable prefabricated steel-concrete composite beam structure, including concrete slab 1, concrete slab support 11, waterproof layer 12, steel beam 2, channel steel upper flange 21, high-strength bolt 3, hexagonal nut 31 , Spacer 32, sleeve 4. The sleeve 4 is arranged in the connecting hole 5 of the concrete slab support 11 . A waterproof layer 12 is arranged on the lower flanges on both sides of the concrete slab 1 . The connecting hole 5 of the precast concrete slab 1 is aligned and spliced ​​with the reserved hole 6 of the channel steel upper flange 21 of the steel beam 2 . The connection between the steel beam and the concrete slab is realized by high-strength bolts 3 . The spacer 32 is arranged at the high-strength bolt 3 . Another place uses hex nut 31 to tighten the bolt and finish fixing.

[0047] refer to Figure 4 , make a reserved hole 6 on the channel-type upper flange 21, and arrange the steel beam 2 ...

Embodiment 2

[0049] Embodiment 2 A manufacturing process of a detachable prefabricated steel-concrete composite beam structure, the steps are as follows: the first step, according to the engineering requirements, the steel beam, the channel steel upper flange of the steel beam and the described Precast concrete slab contact surfaces are treated for dedusting and derusting;

[0050] The second step is to arrange the steel beams according to the direction required by the project;

[0051] The third step is to arrange the sleeve in the connecting hole of the supporting part of the concrete slab;

[0052] The fourth step is to arrange a waterproof layer on the lower flanges on both sides of the concrete slab;

[0053] The fifth step is aligning the connecting hole of the precast concrete slab with the reserved hole of the channel steel upper flange of the steel beam;

[0054] The sixth step is to realize the connection between the steel beam and the concrete slab through high-strength bolts;...

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Abstract

The invention discloses a detachable prefabricated steel-concrete combined beam structure. The detachable prefabricated steel-concrete combined beam structure comprises an I-shaped steel beam, a prefabricated concrete plate, a concrete plate support and a fixing member. An upper flange of the I-shaped steel beam is folded upwards to form a groove-channel-type upper flange; the concrete plate support is arranged at the bottom of the prefabricated concrete plate, and a concrete beam of a T-shaped structure is composed of the prefabricated concrete plate and the concrete plate support and is embedded into the groove-channel-type upper flange of the steel beam; connecting holes are evenly formed in the concrete plate support, the groove-channel-type upper flange is provided with evenly-formedreserved holes, the reserved holes of the groove-channel-type upper flange of the steel beam and the connecting holes of the concrete plate support part are aligned; and the fixing member enables theconcrete beam and the steel beam to be spliced through the reserved holes and the connecting holes. The prefabricated type is adopted, thus rapid construction can be conducted, a deck slab can be replaced, and the cost can be lowered. Through the connecting effect of shear-resistant connecting pieces, the concrete deck slab plays a role in restraining the pressed flange of the steel beam, and accordingly the stability of the steel beam is improved.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering and construction engineering, and specifically relates to a detachable prefabricated steel-concrete composite beam structure and a manufacturing process. Background technique [0002] The complex construction process is a common problem in bridge construction at home and abroad. The impact of the complex construction process on bridge construction is reflected in the long construction period, high cost, large gap between construction results and expected results, and high technical requirements for construction personnel. Greatly affect the overall benefits and social benefits of bridge construction. [0003] There are many ways to solve the complexity of the bridge construction process, and the current common method is to use a prefabricated composite structure. With the acceleration of social development, engineering construction presents "two modernizations", that is, "lightweight" ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/294
CPCE04C3/294
Inventor 赵伟蔡宇韩普各
Owner ZHEJIANG INST OF COMM
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