竖向分布钢筋不连接装配整体式剪力墙平面外稳定性分析

Out-of-plane stability analysis of monolithic assembled concrete shear wall with non-connected vertical distribution reinforcement

为探究竖向分布钢筋不连接装配整体式剪力墙(简称SGBL装配整体式剪力墙)平面外稳定性进而为墙体厚度取值提出建议,依据SGBL整体式剪力墙构造特点,对不同支承条件下SGBL装配整体式剪力墙的边界进行合理简化,基于压杆稳定理论和薄板屈曲理论,建立不同支承条件下SGBL装配整体式剪力墙平面外稳定性验算方法,且与《高规》中稳定性验算公式进行了比较。结果表明,采用本文所提公式计算的计算长度系数β值为《高规》计算结果的1.01~1.2倍,偏于安全。SGBL装配整体式剪力墙平面外稳定性验算方法可供实际工程设计借鉴。

In order to analyze the out-of-plane stability of monolithic assembled concrete shear wall with non-connected vertical distribution reinforcement(SGBL monolithic assembly shear wall)and put forward suggestions for the value of wall thickness,the boundary under different support conditions of SGBL monolithic assembly shear wall were reasonably simplified based on the structural characteristics of SGBL monolithic assembly shear wall.The method of checking the out-of-plane stability of SGBL monolithic assembly shear wall under different supporting conditions was established based on the compression bar stability theory and the buckling theory of thin plate,and compared with the stability calculation formula in Technical specification for concrete structures of tall building.The results show the length coefficientβcalculated by using the article proposed the formula is 1.01~1.2 times of calculation results of Technical specification for concrete structures of tall building,which has a sufficient safety guarantee.The out-of-plane stability checking method of SGBL monolithic assembly shear wall can be used for reference in practical engineering design.