基于统一强度理论的生态复合墙体等效斜压杆宽度计算

• 作 者: 陈国新 黄炜 姚谦峰 俞茂宏 侯莉娜 田英侠
• 机 构: 西安建筑科技大学土木工程学院,新疆农业大学水利与土木工程学院,西安交通大学人居环境与建筑工程学院,西安工业大学建筑工程系,
• 出 处: 工程力学
• 发表日期: 2010年02期
• 关键词: 统一强度理论 复合墙体 压杆 宽度计算 框格 试验研究结果 斜压杆宽度 中间主应力 简化计算 计算模型

结合前期框格和复合墙体的试验研究结果,分析生态填充砌块与框格的受力特性;采用考虑中间主应力σ2影响、拉压性能不同且适用于各种材料复杂应力状态下的双剪统一强度理论,推导简化计算模型中等效斜压杆的宽度表达式,并与试验值进行对比,验证理论计算结果的精确性。此表达式可为复合墙体中填充不同生态块材计算等效宽度提供统一解;有限元数值结果和试验值吻合较好。该模型可用来分析生态复合墙体的动力反应特性。

According to the experimental research results of pre-grid and composite wall, the mechanical properties of ecological-filled block and sash are analyzed. By considering the influence of intermediate principal stress σ2, the tension and compression properties are different and suitable for the double The unified strength theory was deduced. The width expression of the equivalent bar was deduced and compared with the experimental value to verify the accuracy of the theoretical calculation results. This expression can provide a unified solution for calculating the equivalent width of different ecological blocks in the composite wall. The numerical results agree well with the experimental values. The model can be used to analyze the dynamic response characteristics of ecological composite wall.