A kind of reinforced concrete shear wall with self-dividing deformation unit

Abstract

The invention discloses a reinforced concrete shear wall capable of dividing deformation units by self and relates to the technical field of earthquake proofing of structure engineering. Dual layers of net pieces are distributed in a wall body of the shear wall; wall body concrete stones are embedded into the inner area from two sides and are orderly properly jointed due to the dual layer net pieces with the special structure. The shear wall has the hysterisis deformation function, oblique cracks generated by the wall body are concentrated to the dual layers of net pieces and are developed and gathered along the vertical direction in the inner area, so the deformation units are gradually vertically divided or crack dividing wall pillars are further developed, the dual layers of net pieces are correspondingly divided and configured to two adjacent deformation units, or the cracking dividing wall pillars are used reinforcement ribs. The deformation state and damage mode of the shear wall are changed by the structure, the earthquake proofing performance of the reinforced concrete shear wall is obviously improved, and the negative influence on the horizontal bearing capacity or the horizontal bearing capacity is improved.

Description

technical field [0001] The invention relates to the field of anti-seismic technology of structural engineering, in particular to a reinforced concrete shear wall capable of self-dividing deformation units. Background technique [0002] Reinforced concrete shear walls have high shear and flexural rigidity and strong horizontal bearing capacity, and are widely used in building structures, especially high-rise building structures, such as frame-shear wall structures, shear wall structures and frame-tube structures, etc. It is the core seismic component of these structures; however, reinforced concrete shear walls have poor ductility, low energy dissipation capacity, and are prone to shear failure and local collapse, which have a negative impact on the seismic performance of the structural system. If the reinforced concrete shear wall If the anti-seismic defense line composed of walls fails, the structural system will soon lose its anti-seismic ability. [0003] In order to imp...

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Problems solved by technology

This method enhances the deformation and energy dissipation capacity of the shear wall, and can avoid shear failure or local crushing of the shear wall; the disadvantage is that the vertical joints of the structure are set so that the bending stiffness and horizontal bearing capacity of the shear wall The capacity has dropped significantly, but the decline in horizontal bearing capacity and the specific effect of filling damping and energy-dissipating materials in vertical joints cannot be simply determined. Targeted tests and calculations are required for application, which also brings inconvenience.

The disadvantages are: after the vertical joints are formed on the wall, the built-in vertical separating steel frame (slab) and the concrete of the wall are basically out of work. After the bone (slab) and concrete are peeled off, the shear wall enters the failure stage and deforms, and the horizontal bearing capacity of the shear wall decreases to a certain extent. The decline is related to the bonding force between the steel frame (slab) and concrete. The amplitude is small, and the cohesive force is small, which is close to the decline of the shear wall with vertical joints; the peeling surface between the wall concrete and the steel frame (slab) is flat, and the staggered frictional energy consumption of two adjacent wall columns at the joint is limited

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