近断层地震下钢框架内填暗竖缝RC墙结构基于能量的抗震设计方法
发布时间：2018-11-11 17:13
【摘要】：半刚接钢框架内填暗竖缝RC墙结构(简称PSRCW)是一种新型组合结构,具有更优的抗震性能。PSRCW结构主要由具有良好变形能力的半刚接钢框架、暗竖缝RC剪力墙、抗剪连接件组合而成。目前,国内外已对半刚接钢框架内填暗竖缝RC墙结构的抗震机理展开了深入研究,并取得丰硕的研究成果,但对其实用抗震设计方法的研究尚未开展。本文通过已完成的相关试验数据的统计分析,结合高烈度地区的近场地震动记录,提出了在近场速度脉冲地震作用下半刚接钢框架内填暗竖缝RC墙结构基于MECE谱的抗震设计方法,建立了主要部件的最大有效滞回耗能的简化计算表达式,并通过弹塑性时程分析、易损性分析对PSRCW结构基于MECE谱的能量抗震设计方法的合理性及可靠性进行了评估。本文所提出的设计方法对于完善PSRCW结构体系的相关设计理论有重要意义。本文的主要研究工作如下:(1)考虑多阶振型影响、结合能量平衡准则,建立了PSRCW结构各主要部件的最大有效滞回耗能的简化计算表达式,提出了PSRCW结构基于MECE谱的性态抗震设计方法;(2)考虑目标延性系数、层数的影响,基于本文所提出基于MECE谱的能量抗震方法设计4个PSRCW结构算例,验证了本文方法的可行性;(3)选取2组共40条近场速度脉冲型地震波,并对4个PSRCW结构算例进行了弹塑性时程分析,评估了PSRCW算例在罕遇地震水准下的层间位移角、层剪力分布、楼层残余位移角和残余位移等,验证了本文方法的合理性;(4)结合PSRCW结构的性态指标、修正的Park-Ang损伤模型、增量动力时程分析结果,给出了4个PSRCW算例以第1周期的谱加速(SA)、地面峰值加速度(PGA)表征的不同性态水平下(基本完好IO、中等破坏LS、严重破坏CP、倒塌C)的地震易损性曲线,评估了PSRCW结构的抗震性能。
[Abstract]:RC wall structure with concealed vertical joint in semi-rigid steel frame (PSRCW) is a new type of composite structure with better seismic performance. The PSRCW structure is mainly composed of semi-rigid steel frame with good deformation capacity and RC shear wall with dark vertical joint. The shear joint is combined. At present, the aseismic mechanism of semi-rigid steel frame filled with hidden vertical joint RC wall structure has been deeply studied, and fruitful research results have been obtained, but the research on practical seismic design method has not been carried out yet. In this paper, through the statistical analysis of the relevant test data completed, combined with the near field ground motion records in the high intensity area, A seismic design method based on MECE spectrum for semi-rigid steel frame filled with dark vertical joint RC wall under the action of near-field velocity pulse earthquake is presented, and a simplified formula for calculating the maximum effective hysteretic energy consumption of main components is established. Through elastic-plastic time history analysis and vulnerability analysis, the rationality and reliability of the energy seismic design method of PSRCW structure based on MECE spectrum are evaluated. The design method proposed in this paper is of great significance to improve the relevant design theory of PSRCW structure system. The main work of this paper is as follows: (1) considering the influence of multi-order modes and combining with the energy balance criterion, a simplified formula for calculating the maximum effective hysteretic energy dissipation of the main components of PSRCW structure is established. The design method of seismic behavior of PSRCW structure based on MECE spectrum is proposed. (2) considering the influence of the target ductility coefficient and the number of layers, the feasibility of this method is verified by the design of four PSRCW structures based on the energy seismic method proposed in this paper. (3) two groups of 40 near-field velocity-pulse seismic waves are selected, and the elastic-plastic time-history analysis of four PSRCW structural examples is carried out to evaluate the interlayer displacement angle and shear force distribution of the PSRCW case under the rare earthquake level. The rationality of the method is verified by the residual displacement angle and residual displacement of the floor. (4) combining with the performance index of PSRCW structure, the modified Park-Ang damage model and the results of incremental dynamic time-history analysis, four PSRCW examples are given to accelerate (SA), by spectrum in the first period. The seismic vulnerability curves of the PSRCW structures characterized by the peak ground acceleration (PGA) under different behavior levels (basically intact IO, moderately damaged LS, seriously damaged CP, collapse C) are evaluated. The seismic behavior of PSRCW structures is evaluated.
【学位授予单位】：苏州科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU352.11
本文编号：2325575
[Abstract]:RC wall structure with concealed vertical joint in semi-rigid steel frame (PSRCW) is a new type of composite structure with better seismic performance. The PSRCW structure is mainly composed of semi-rigid steel frame with good deformation capacity and RC shear wall with dark vertical joint. The shear joint is combined. At present, the aseismic mechanism of semi-rigid steel frame filled with hidden vertical joint RC wall structure has been deeply studied, and fruitful research results have been obtained, but the research on practical seismic design method has not been carried out yet. In this paper, through the statistical analysis of the relevant test data completed, combined with the near field ground motion records in the high intensity area, A seismic design method based on MECE spectrum for semi-rigid steel frame filled with dark vertical joint RC wall under the action of near-field velocity pulse earthquake is presented, and a simplified formula for calculating the maximum effective hysteretic energy consumption of main components is established. Through elastic-plastic time history analysis and vulnerability analysis, the rationality and reliability of the energy seismic design method of PSRCW structure based on MECE spectrum are evaluated. The design method proposed in this paper is of great significance to improve the relevant design theory of PSRCW structure system. The main work of this paper is as follows: (1) considering the influence of multi-order modes and combining with the energy balance criterion, a simplified formula for calculating the maximum effective hysteretic energy dissipation of the main components of PSRCW structure is established. The design method of seismic behavior of PSRCW structure based on MECE spectrum is proposed. (2) considering the influence of the target ductility coefficient and the number of layers, the feasibility of this method is verified by the design of four PSRCW structures based on the energy seismic method proposed in this paper. (3) two groups of 40 near-field velocity-pulse seismic waves are selected, and the elastic-plastic time-history analysis of four PSRCW structural examples is carried out to evaluate the interlayer displacement angle and shear force distribution of the PSRCW case under the rare earthquake level. The rationality of the method is verified by the residual displacement angle and residual displacement of the floor. (4) combining with the performance index of PSRCW structure, the modified Park-Ang damage model and the results of incremental dynamic time-history analysis, four PSRCW examples are given to accelerate (SA), by spectrum in the first period. The seismic vulnerability curves of the PSRCW structures characterized by the peak ground acceleration (PGA) under different behavior levels (basically intact IO, moderately damaged LS, seriously damaged CP, collapse C) are evaluated. The seismic behavior of PSRCW structures is evaluated.
【学位授予单位】：苏州科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU352.11
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