【摘要】：半剛接鋼框架內(nèi)填暗豎縫RC墻結(jié)構(gòu)(簡稱PSRCW)是一種新型組合結(jié)構(gòu),具有更優(yōu)的抗震性能。PSRCW結(jié)構(gòu)主要由具有良好變形能力的半剛接鋼框架、暗豎縫RC剪力墻、抗剪連接件組合而成。目前,國內(nèi)外已對半剛接鋼框架內(nèi)填暗豎縫RC墻結(jié)構(gòu)的抗震機理展開了深入研究,并取得豐碩的研究成果,但對其實用抗震設(shè)計方法的研究尚未開展。本文通過已完成的相關(guān)試驗數(shù)據(jù)的統(tǒng)計分析,結(jié)合高烈度地區(qū)的近場地震動記錄,提出了在近場速度脈沖地震作用下半剛接鋼框架內(nèi)填暗豎縫RC墻結(jié)構(gòu)基于MECE譜的抗震設(shè)計方法,建立了主要部件的最大有效滯回耗能的簡化計算表達式,并通過彈塑性時程分析、易損性分析對PSRCW結(jié)構(gòu)基于MECE譜的能量抗震設(shè)計方法的合理性及可靠性進行了評估。本文所提出的設(shè)計方法對于完善PSRCW結(jié)構(gòu)體系的相關(guān)設(shè)計理論有重要意義。本文的主要研究工作如下:(1)考慮多階振型影響、結(jié)合能量平衡準(zhǔn)則,建立了PSRCW結(jié)構(gòu)各主要部件的最大有效滯回耗能的簡化計算表達式,提出了PSRCW結(jié)構(gòu)基于MECE譜的性態(tài)抗震設(shè)計方法;(2)考慮目標(biāo)延性系數(shù)、層數(shù)的影響,基于本文所提出基于MECE譜的能量抗震方法設(shè)計4個PSRCW結(jié)構(gòu)算例,驗證了本文方法的可行性;(3)選取2組共40條近場速度脈沖型地震波,并對4個PSRCW結(jié)構(gòu)算例進行了彈塑性時程分析,評估了PSRCW算例在罕遇地震水準(zhǔn)下的層間位移角、層剪力分布、樓層殘余位移角和殘余位移等,驗證了本文方法的合理性;(4)結(jié)合PSRCW結(jié)構(gòu)的性態(tài)指標(biāo)、修正的Park-Ang損傷模型、增量動力時程分析結(jié)果,給出了4個PSRCW算例以第1周期的譜加速(SA)、地面峰值加速度(PGA)表征的不同性態(tài)水平下(基本完好IO、中等破壞LS、嚴(yán)重破壞CP、倒塌C)的地震易損性曲線,評估了PSRCW結(jié)構(gòu)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.
【學(xué)位授予單位】：蘇州科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU352.11

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