Prefabricated assembly type bolted connection reinforced concrete box-girder

A steel-concrete composite beam and prefabricated assembly technology, which is applied to structural elements, building components, and long-strip structural components for load-bearing, etc., can solve problems such as difficult construction, slow construction efficiency, and complicated design, and reduce welding. Work and last-shift work, convenient construction, and the effect of improving integrity

Inactive Publication Date: 2017-06-20
XIJING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the concrete slabs of the current prefabricated concrete structure system are constructed on-site, which not only pollutes the environment, but also slows down the construction efficiency, and the construction is difficult and the design is complicated.

Method used

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  • Prefabricated assembly type bolted connection reinforced concrete box-girder
  • Prefabricated assembly type bolted connection reinforced concrete box-girder
  • Prefabricated assembly type bolted connection reinforced concrete box-girder

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Embodiment Construction

[0020] The present invention is further described below in conjunction with accompanying drawing.

[0021] refer to Figure 1-4 , a prefabricated assembled bolt-connected steel-concrete composite beam, comprising a precast concrete slab 1, the precast concrete slab 1 is installed on a steel beam 4, a thin-walled steel plate 3 is pre-embedded at the bottom of the precast concrete slab 1, and a hole is opened on the thin-walled steel plate 3, The shear bolt 2 passes through the hole reserved in the thin-walled steel plate 3 and is welded with it. The shear bolt (2) is installed in the hole 5 reserved in the flange of the steel beam. ) is welded into a pre-embedded part, which is pre-embedded at both ends of the precast concrete slab 1 as a whole, and the adjacent pre-embedded steel plates are welded by using the butt weld 7 .

[0022] The mid-span of the prefabricated concrete slab 1 pre-embeds the shear bolts 2, whose positions are consistent with those of the reserved holes 5...

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Abstract

A prefabricated assembled bolt-connected steel-concrete composite beam comprises prefabricated concrete slabs, steel beams, pre-embedded bolts, pre-embedded thin-walled steel plates, pre-embedded steel plates and butt welds. Firstly, the steel beams and precast concrete slabs are connected by bolts pre-buried in the mid-span of the precast slabs to improve the bearing capacity of the joints, which is beneficial to the progressive collapse resistance of the structure. Secondly, the pre-embedded steel plates pre-embedded at both ends of the plates can be connected by butt welds, so that two adjacent plates are connected to resist the negative bending moment of the structural support and improve the integrity of the structure. The assembled steel girder of the present invention realizes factory production and quick assembly on site, avoids concrete pouring on site, improves construction efficiency, and reduces environmental pollution. At the same time, the assembled structure system adopted by the present invention can realize the functions of building disassembly and replacement, which embodies the concept of energy saving and environmental protection of buildings.

Description

technical field [0001] The invention belongs to the technical field of engineering structures, and in particular relates to a prefabricated assembled steel-concrete composite beam connected by bolts. Background technique [0002] At present, the prefabricated steel structure system is an important direction for the development of the steel structure residential system. A large number of on-site welding is used in the construction of the traditional steel structure residential building, the construction speed is slow, the environmental pollution is serious, and the weld quality is difficult to control, which seriously affects To ensure the safety performance of the building, the prefabricated steel structure system effectively overcomes the shortcomings of traditional steel structure buildings. In the prefabricated steel structure system, the on-site installation of the combined joints of steel beams and concrete slabs has always been a problem that needs to be studied. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/294
CPCE04C3/294
Inventor 高山苏卫铭王文博孙佳伟
Owner XIJING UNIV
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