论文部分内容阅读
首先简要阐述了可模拟填充墙平面内外相互作用的纤维离散化梁-柱单元模型。其次,基于Open Sees分析软件,对某倒塌试验的4层钢筋混凝土框架-填充墙结构进行了数值模拟,数值模拟结果与试验结果的对比表明考虑平面内外相互作用的纤维离散化梁-柱单元模型模拟框架-填充墙结构中的填充墙是有效的。最后,基于校准后的数值分析模型,利用Open Sees分析软件对某钢筋混凝土框架-填充墙结构教学楼,区分考虑和不考虑填充墙平面内外相互作用两种情况,分别建立三维空间模型,进行了静力推覆分析和增量动力分析,进而利用24条地震动记录输入下的增量动力分析结果,给出了具有50%倒塌概率的结构抗整体性倒塌能力。分析结果对比表明不考虑填充墙平面内外相互作用会明显低估结构的抗倒塌能力。
Firstly, the fiber discretization beam-column element model that can simulate the interaction between the inside and the outside of the infilled wall is briefly described. Secondly, based on the Open Sees analysis software, the numerical simulation of a 4-story RC frame-infill wall with a collapse test is carried out. The comparison between the numerical simulation results and the experimental results shows that the CFD-beam element model considering the in-plane and out- Simulation Framework - Padding walls in infill walls are effective. Finally, based on the calibrated numerical analysis model, using the Open Sees analysis software, a three-dimensional space model was established for both the reinforced concrete frame-filled wall teaching building and the two cases without considering the internal and external interaction of the infilled wall. Static pushover analysis and incremental dynamic analysis, and then use the incremental dynamic analysis results of 24 ground motion records input to give the structure with integral collapse probability of 50% probability of collapse. A comparison of the analysis results shows that the collapse resistance of the structure can be significantly underestimated irrespective of the internal and external interaction of the infilled wall.