Reinforced concrete structure or steel-concrete combined structure system

Abstract

The invention discloses a reinforced concrete structure or a steel-concrete combined structure system, and aims to provide an earthquake-proof structure system capable of improving the earthquake-proof performance of a building structure and realizing strong columns and weak beams. The key point of the system comprises a vertical bearing structure, a beam connected with the vertical bearing structure and a floor slab connected with the vertical bearing structure and the beam, wherein a connection part or a near connection part of the beam and the vertical bearing structure is provided with a hole for locally separating the beam and the floor slab; and the beam end is a non T-shaped section beam which weakens the restraint effect of the floor slab on the beam, and the position for controlling the occurrence of a plastic hinge of the beam is positioned at the beam end so as to ensure the implementation of the strong columns and the weak beams. The system has reasonable force transfer, does not influence the bearing capacity of the floor slab, and is convenient to construct; and the manufacturing cost of the engineering is declined a little. The system has strong structural energy dissipation capacity, remarkably improves the ductility of structural objects, prevents the building from collapsing under the action of earthquake, and effectively protects the safety of human life and property.

Description

technical field [0001] The invention relates to a building structure system, more specifically, it relates to a reinforced concrete structure or a steel-concrete composite structure system applied in construction engineering. Background technique [0002] In the current reinforced concrete structure or steel-concrete composite structure system, there are frame structure, shear wall structure, frame-shear wall structure, frame-tube structure, tube structure, and tube-in-tube structure. The interconnection of each component of the above-mentioned various structures adopts rigid connection. It is a rigid lateral force resistant system. [0003] According to the research results of relevant experts and scholars, the rigidity of the floor slab is very high, the beams and slabs are equipped with steel bars, and the bending resistance of the floor slab is also very large. However, the design of the building structure does not take into account the bending bearing capacity of the f...

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Problems solved by technology

[0003] According to the research results of relevant experts and scholars, the rigidity of the floor slab is very high, the beams and slabs are equipped with steel bars, and the bending resistance of the floor slab is also very large. However, the design of the building structure does not take into account the bending bearing capacity of the floor slab. The building structure design carried out in my country's relevant structural design codes actually did not meet the result of "strong columns and weak beams" required by the codes, which has great potential safety hazards

The survey results of the Wenchuan Earthquake show that for structures with frame components (frame structure, frame-shear wall structure, frame-tube structure), under the action of earthquakes, the structure is mainly damaged at the end of the column, but rarely at the end of the beam. Destruction, a large number of buildings collapsed due to column damage, resulting in huge loss of life and property, the buildings did not really achieve "strong columns and weak beams", which did not meet the spiritual requirements of the code

[0004] Therefore, to achieve "strong column and weak beam" with the current structural form, it is necessary to greatly increase the cross-sectional size of the column and the amount of reinforcement to balance the bending resistance of the floor slab, but at the same time it brings the following problems: (1) greatly Increase the cost of the building; (2) affect the use of the building and reduce the effective use area; (3) increase the weight and rigidity of the structure, and further increase the earthquake effect, and quite a few columns even become short columns, further increasing the building cost

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