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Steel plate and high-strength concrete combination connecting beam

A high-strength concrete and concrete technology, applied in the direction of structural elements, building components, long-strip structural components for load-bearing, etc., can solve problems such as concrete compression damage, avoid crack exposure, improve ductility and seismic energy dissipation performance , the effect of expanding the scope of work

Inactive Publication Date: 2013-05-01
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, under the repeated action of earthquakes, the cracks of the coupling beam will continue to develop and widen until the concrete is damaged under compression.

Method used

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  • Steel plate and high-strength concrete combination connecting beam
  • Steel plate and high-strength concrete combination connecting beam

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Embodiment

[0021] A new type of steel-concrete composite coupling beam with steel plates on both sides, that is, an outsourcing steel plate-concrete composite coupling beam. The concrete coupling beam is poured inside the outsourcing steel plate, and the concrete and steel plates are connected through bolts to strengthen the connection. The studs are welded on the inner side of the double-layer steel plate, perpendicular to the steel plate, and arranged in several rows evenly along the height direction of the steel plate. The outsourcing steel plate is surrounded by four steel plates on four sides to form an outsourcing formwork, and concrete is wrapped in the outsourcing formwork. Concrete adopts high-strength concrete (above C6).

[0022] This new composite coupling beam provides flexural strength and shear strength by disposing steel plates on the outside of the coupling beam instead of close-fitting longitudinal and transverse reinforcements, which is conducive to exerting the ductil...

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Abstract

The invention provides a steel plate and high-strength concrete combination connecting beam which comprises wrapping steel plates and high-strength concrete poured among the wrapping steel plates. According to the steel plate and high-strength concrete combination connecting beam, the steel plates are arranged outside a concrete connecting beam to substitute shear reinforcements to resist a shearing force with the concrete, and the shear resistance of the connecting beam is improved. In addition, the wrapping steel plates have an effective constraint effect on the high-strength concrete, the brittleness of the high-strength concrete can be improved, and the carrying capacity and deformability of the connecting beam are improved, so that the earthquake resistance of a coupled shear wall structure system is ensured, and the cross section of the connecting beam is decreased. As the wrapping steel plates serve as templates, the construction is more convenient and quicker.

Description

technical field [0001] The invention belongs to the technical field of steel and concrete composite structures and hybrid structures, and relates to a shear wall connecting beam, in particular to a steel plate high-strength concrete composite connecting beam. Background technique [0002] Coupling beams refer to the beams connecting wall piers and wall piers in the shear wall structure system, and they are important seismic energy-dissipating components in high-rise buildings. Under the horizontal earthquake, the coupling beam can adjust the lateral stiffness and bearing capacity of the shear wall and ensure the ductility of the shear wall through its own yield, so as to achieve the purpose of consuming the seismic capacity. The strength, stiffness and deformation capacity of the connecting beam have a significant impact on the seismic performance of the structure. [0003] The failure of coupling beams in shear walls of high-rise buildings under horizontal load can be divi...

Claims

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Application Information

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IPC IPC(8): E04C3/293E04B1/98
Inventor 马恺泽郭辉鄢红良刘伯权
Owner CHANGAN UNIV
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