Method for acquiring reinforcement ratio of constraint stirrups of swing wall

Abstract

The invention discloses a method for acquiring the reinforcement ratio of constraint stirrups of a swing wall, and relates to the field of constructions. The method comprises the steps: establishing a system model of the prefabricated concrete swing wall, and establishing an optimization design model according to the system model; obtaining a variable conversion formula of the second constraint condition; and substituting the optimization design model into a genetic algorithm module, and obtaining a reinforcement ratio minimum value meeting the first constraint condition, the second constraint condition and the target function group at the same time. According to the method, the optimization design model is obtained through establishment of the system model, the variables are determined, and the optimal reinforcement ratio is obtained through the genetic algorithm model according to the constraint conditions and the known target function; therefore, the wall corner of the precast concrete swing wall can obtain the maximum deformation and strain capacity under the condition that few enough constraint stirrups are arranged.

Description

technical field [0001] The invention relates to the field of construction, in particular to a method for obtaining reinforcement ratios for constraining stirrups of swing walls. Background technique [0002] The precast concrete swing wall system mainly consists of precast concrete wall panels, prestressed steel bars, and energy-dissipating elements. Different from traditional cast-in-place shear walls, the bottom of the rocking wall is separated from the foundation, and is only connected to the foundation by prestressed steel bars; the prestressed steel bars connect the rocking wall and the foundation as a whole, and provide restoring force when the rocking wall swings, making the wall body returns to its original position. An appropriate amount of energy-dissipating mild steel is arranged on both sides of the prestressed reinforcement to make the structural system have sufficient energy-dissipating capacity. Under the action of lateral force, the wall will sway. Accordi...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: (1) it depends on the experience of the designer; (2) it is time-consuming and labor-intensive, and the efficiency is low; (3) the configuration of stirrups may exceed the actual demand, which is not only economical, but also may increase difficulty of construction

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