【摘要】 针对超长复杂隔震结构在建造过程中出现的非载荷变形问题,考虑混凝土收缩应变和当量温差,对该类结构在建造过程中的温度效应进行有限元模拟,并对结构建造过程中由于温度变化和混凝土收缩导致橡胶隔震支座非载荷变形进行现场监测。通过数据对比分析,表明有限元模拟和现场监测结果基本吻合。结合某平面不规则超长隔震实际工程,总结了隔震支座变形和结构内力变化规律,探讨该结构在最不利温差工况下的隔震支座变形、底板的变形和内力,可以为超长隔震结构的设计和施工提供参考。更多还原

【Abstract】 According to the non-load deformation of the super-long complex isolated structure in the construction process,temperature effect of this kind of structure in the construction process is simulated by the finite element method,which takes into account of concrete shrinkage age curve and equivalent temperature differentials,and the on-site monitoring of the rubber bearings non-load deformation due to temperature variations and concrete shrinkage in the construction process is implemented. The comparison of the data analysis shows that the results of the FEA simulation and on-site monitoring are basically consistent. Based on the engineering project of an irregular plane super-long isolated structure,the variation of the isolation bearing deformation and structural internal force is summarized,the bearing deformation displacement and deformation and internal forces of floors under the most adverse temperature difference case are discussed. It can provide a reference for the design and construction of the super-long isolated structure.更多还原