【摘要】：為有效地采用Pushover分析獲得輸電塔架的抗震性態(tài)指標(biāo),針對(duì)該類結(jié)構(gòu)Pushover分析的側(cè)向力分布模式選取開展了研究。首先根據(jù)塔架抗震性態(tài)指標(biāo)確定側(cè)向力分布模式合理性選取準(zhǔn)則,然后根據(jù)規(guī)則化后的代表性地震波進(jìn)行了不同地震動(dòng)強(qiáng)度下的塔架非線性時(shí)程分析,并與4種常用側(cè)向力分布的Pushover分析結(jié)果進(jìn)行對(duì)比,進(jìn)而根據(jù)塔架關(guān)鍵點(diǎn)位移和塔腿主材應(yīng)力的一致性分析,對(duì)比研究了各側(cè)向力分布模式的適用性,建議輸電塔結(jié)構(gòu)Pushover分析中采用多振型和倒三角兩種側(cè)向力分布模式。
[Abstract]:In order to obtain the seismic behavior index of transmission tower effectively by Pushover analysis, the selection of lateral force distribution mode of Pushover analysis of this kind of structure is studied. Firstly, the reasonable selection criterion of lateral force distribution mode is determined according to the seismic behavior index of tower, and then the nonlinear time history analysis of tower under different ground motion intensity is carried out according to the regular representative seismic wave, and the results are compared with the Pushover analysis results of four commonly used lateral force distribution, and then the applicability of each lateral force distribution model is compared and studied according to the consistency analysis of the displacement of key points of tower and the stress of main material of tower leg. It is suggested that two lateral force distribution modes, multi-mode and inverted triangle, should be adopted in Pushover analysis of transmission tower structure.
【作者單位】： 廣西大學(xué)土木建筑工程學(xué)院;工程防災(zāi)與結(jié)構(gòu)安全教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51469004) 廣西自然科學(xué)基金重大項(xiàng)目(2012GXNSFEA053002)
【分類號(hào)】：TU352.1

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