混凝土劈裂抗拉强度下复合墙板建筑结构优化

Design of Concrete Splitting Tensile Strength of Composite Wallboard Construction Structure Optimization

由于混凝土本身结构特性和各种缺陷的随机分布和随机增长,导致混凝土劈裂,在劈裂状态下为了提高混凝土墙体的抗拉强度,需要对复合墙板建筑结构进行优化设计。设计了一种优化的混凝土劈裂抗拉强度下复合墙板建筑结构,指导建筑设计和施工建设。通过统计分析方法,建立作用于建筑结构上劈裂荷载的统计模型,在劈裂冲击下,结构总弹性层间位移机制在预期的结构抗侧承载力作用下出现塑性失效,得到抗拉作用于建筑结构上的劈裂荷载参数模型。构建等效单自由度体系,试验中研究劈裂荷载作用下的单自由度钢梁动力响应,得到试件劈裂破坏形态图。仿真结果表明,采用该设计模型,能有效提高混凝土复合墙板建筑结构的强度,受劈裂损伤的影响较小,工程应用价值较高。

Due to the random distribution of concrete structure itself characteristics and various defects and stochastic growth, leading to the concrete splitting, the splitting condition in order to improve the tensile strength of the concrete wall, the need to optimize the design of the composite wall panel structure. An optimized concrete splitting tensile strength of composite wallboard structure of building, building design and construction guide. Through the statistical analysis method, statistical model is established in the role of building structure with split loads, the splitting under the impact, the total elastic structure layer displacement mechanism in the expected structure lateral bearing capacity under the effect of plastic failure load parameter model is obtained by splitting tensile action on the building structure. The construction of the equivalent single degree of freedom system, test of splitting a single degree of freedom beam under the dynamic load response, specimen splitting failure morphology map obtained. Simulation results show that using the design model can effectively improve the architectural structure of composite wallboarcl concrete strength by splitting smaller impact injury, high engineering application value.