可变荷载作用下轴心受压双钢管混凝土结构稳定性研究  

Study on the Stability of the Double-steel-filled Concrete with the Axial Compression under the Variable Load

作　　者：裴欣[1] PEI Xin(Lu’an Vocational Technical College,Lu’an 237001,China)

机构地区：[1]六安职业技术学院

出　　处：《安阳师范学院学报》2019年第5期138-142,共5页Journal of Anyang Normal University

摘　　要：为了提高可变荷载作用下轴心受压双钢管混凝土结构稳定性,提出基于结构动应变监测和屈服响应评估的可变荷载作用下轴心受压双钢管混凝土结构稳定性评估方法。构建可变荷载作用下轴心受压双钢管混凝土的荷载可靠性监测模型,采用线性动力分析方法进行可变荷载作用力分析,参考混凝土的模型非线性参数,采用反演递归和试验评估方法,进行可变荷载作用下轴心受压双钢管混凝土结构优化设计,建立轴心受压双钢管混凝土的强化模型参数估计模型,根据混凝土结构稳定性作为约束条件,实现可变荷载作用下轴心受压双钢管混凝土结构优化设计,结合结构动应变监测和屈服响应评估方法,实现混凝土结构的稳定性建模。测试结果表明,设计的可变荷载作用下轴心受压双钢管混凝土结构稳定性测试模型精确可靠,具有很好的混凝体结构应力测试能力。In order to improve that stability of the axial compression double-steel tube concrete structure under the action of variable load,a method for evaluating the stability of the axial compression double-steel tube concrete structure under the variable load action based on the structural dynamic strain monitoring and the yield response assessment is proposed.The load reliability monitoring model of the axial compression double-steel pipe concrete under the action of a variable load is constructed.The analysis of variable load force is carried out by adopting a linear dynamic analytic method.The nonlinear parameters of the model of the reference concrete are used,and the inversion recursion and the test evaluation method are adopted.In that invention,the optimal design of the double-steel tube concrete structure with the axial compression under the action of variable load is carry out.The parameter estimation model of the reinforced model of the double-steel tube concrete with axial compression is established.The stability of the concrete structure is taken as a constraint condition,The optimal design of the double-steel tube concrete structure under the action of variable load is realized,and the stability modeling of the concrete structure is realized by combining the dynamic strain monitoring and the yield response evaluation method of the structure.The test results show that the stability test model of the axial compression double-steel tube concrete structure under the variable load of the design is accurate and reliable,and has a good concrete-structure-stress test capability.

关 键 词：可变荷载作用 轴心受压 双钢管混凝土 结构稳定性 

分 类 号：TU311.3[建筑科学—结构工程]