Segmented prestress self-resetting damage concentration prefabricated swing shear wall

A prestressed and self-resetting technology, applied in the direction of walls, building components, buildings, etc., can solve the problems of increasing structural unreliability during earthquakes, unscientific connection design of main structure, etc., to reduce construction difficulty and reduce structural rigidity. , the effect of reducing residual deformation

CN106245820AActive Publication Date: 2016-12-21SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-12-21

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Abstract

The invention discloses a segmented prestress self-resetting damage concentration prefabricated swing shear wall which comprises a plurality of wall bodies arranged from bottom to top, wherein damage concentration blocks are arranged at the corners of the wall bodies. Each wall body is internally provided with unbonded prestressed steel bars, wherein one end of each unbonded prestressed steel bar is anchored in the wall body, and the other end of the unbonded prestressed steel bar stretches out of the upper portion of the wall body. Each wall body is provided with reserved prestressed steel bar ducts. Anchorage devices are arranged at the upper ends of the reserved prestressed steel bar ducts. According to every two adjacent wall bodies, the reserved prestressed steel bar ducts located in the upper wall body correspond to the unbonded prestressed steel bars arranged in the lower wall body, and after the unbonded prestressed steel bars penetrate through the corresponding reserved prestressed steel bar ducts, the upper ends of the unbonded prestressed steel bars are anchored through the anchorage devices. The prestress is applied in a segmented mode, the construction difficulty is lowered, the redundancy rate is increased, the situation that the overall structure is damaged due to prestress failure in a certain position is avoided, the structure rigidity can be reduced through swinging, lifting, falling and impacting of the wall bodies in an earthquake, the structural cycle is shortened, and the earthquake action is reduced; and meanwhile, the self-resetting function is achieved.
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Description

technical field

[0001] The invention relates to the technical field of civil engineering, in particular to a segmented prestressed self-resetting damage concentrated prefabricated swing shear wall. Background technique

[0002] Earthquakes, as sudden natural disasters, often cause huge social impact and economic losses. Ordinary concrete buildings designed according to codes can no longer fully meet the growing seismic demand of buildings. The structure needs to be under the action of earthquakes and other disasters without excessive damage to the structure, and after the disaster can be repaired under reasonable technical and economic conditions to restore its expected function, that is, the damage controllable structure.

[0003] Structural damage is reflected in the overall effect of component damage, including three aspects: damage form, damage degree and damage distribution. The purpose of structural damage control is to limit the damage of the structure to the preset...

Examples

Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] A segmented prestressed self-resetting damaged concentrated prefabricated swing shear wall of the present invention includes multiple walls arranged from bottom to top, each wall is provided with one end anchored in the wall and the other end protruding from the wall There are unbonded prestressed tendons above the body, and each wall is also provided with reserved prestressed tendon channels, and anchors are provided at the upper ends of each reserved prestressed tendon channels. Among adjacent walls, the upper wall The reserved prestressed tendon channel in the body corresponds to the unbonded prestressed tendon set in the wall below it. After the unbonded prestressed tendon penetrates into the corresponding reserved prestressed tendon channel, its upper end is Anchors anchor. The corners of each wall are provided with damage concentration blocks. Among them...