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(重慶市設(shè)計(jì)院有限公司, 重慶 400015)
摘要: 掉層結(jié)構(gòu)為山地建筑常用的結(jié)構(gòu)形式,基于實(shí)際工程遇到的問(wèn)題,對(duì)不同掉層層數(shù)的框支轉(zhuǎn)換結(jié)構(gòu)進(jìn)行彈塑性計(jì)算,得到框支柱、轉(zhuǎn)換層、框支框架的內(nèi)力及性能水準(zhǔn)結(jié)果,分析了掉層層數(shù)對(duì)不同種類框支框架的抗震性能的影響。 得到帶掉層框支轉(zhuǎn)換結(jié)構(gòu)中框支框架設(shè)計(jì)中應(yīng)注意的部分問(wèn)題及經(jīng)驗(yàn):一端框支柱位于上接地端,另一端框支柱位于下接地端的框支框架應(yīng)避免出現(xiàn);框支柱均位于上接地端的框支框架宜避免設(shè)置,如若設(shè)置,應(yīng)重點(diǎn)加強(qiáng)框支柱抗剪;框支柱均位于下接地端的框支框架隨著掉層層數(shù)增加,抗震性能提高。
關(guān)鍵詞: 掉層結(jié)構(gòu); 框支轉(zhuǎn)換; 框支柱; 掉層層數(shù); 抗震性能
中圖分類號(hào):TU973 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002?848X(2022)12?0064?06
DOI:10. 19701 / j. jzjg. LS210162
Discussion on influence of dropped floor numbers on seismic performance of frame?supported structures
WAN Zhengyi
(ChongQing Architectural Design Institute Co., LTD., Chongqing 400015, China)
Abstract: Structure supported by foundations with different elevations is a common structural form in structures on a slope.Based on the problems encountered in practical projects, the elastic?plastic calculation of frame?supported transfer structure with different dropped floor numbers were carried out, and the internal forces and performance levels of frame?supported column, transfer floor and frame?supported frame were obtained. The influence of different dropped floor numbers on seismic performance of different kinds of frame?supported frame was analyzed. Some issues and experience to pay attention to in the related design of frame?supported frame in the frame?supported transfer structure with dropped floors were obtained: the frame?supported frame with one end supporting columns on upper embedding end and the other end supporting columns on lower embedding end should be avoided; the frame?supported frame with all supporting columns on upper embedding end should be avoided, if they are installed, the shear capacity of supporting columns should be strengthened; the seismic performance of the frame?supported frame with all supporting columns on lower embedding end is improved with the increase of dropped floor numbers.
Keywords:structure supported by foundations with different elevation; frame?supported transfer; supporting column;dropped floor number; seismic performance
第一作者:萬(wàn)正義,碩士,工程師,一級(jí)注冊(cè)結(jié)構(gòu)工程師,主要從事超高層結(jié)構(gòu)設(shè)計(jì)及研究,Email:wanzhengyi11@ 163.com。
[引用本文] 萬(wàn)正義. 掉層層數(shù)對(duì)框支結(jié)構(gòu)抗震性能的影響探討[ J]. 建筑結(jié)構(gòu),2022,52( 12):64?69. WAN Zhengyi. Discussion on influence of dropped floor numbers on seismic performance of frame?supported structures [ J].Building Structure,2022,52(12):64?69.
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