掉层层数对框支结构抗震性能的影响探讨

引用文献:

万正义. 掉层层数对框支结构抗震性能的影响探讨[J]. 建筑结构,2022,48(12):64-69.

WAN Zhengyi. Discussion on influence of dropped floor numbers on seismic performance of frame-supported structures[J]. Building Structure,2022,48(12):64-69.

作者:万正义
单位:重庆市设计院有限公司
摘要:掉层结构为山地建筑常用的结构形式,基于实际工程遇到的问题,对不同掉层层数的框支转换结构进行弹塑性计算,得到框支柱、转换层、框支框架的内力及性能水准结果,分析了掉层层数对不同种类框支框架的抗震性能的影响。得到带掉层框支转换结构中框支框架设计中应注意的部分问题及经验: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应避免出现;框支柱均位于上接地端的框支框架宜避免设置,如若设置,应重点加强框支柱抗剪;框支柱均位于下接地端的框支框架随着掉层层数增加,抗震性能提高。
关键词:掉层结构;框支转换;框支柱;掉层层数;抗震性能
作者简介:万正义,硕士,工程师,一级注册结构工程师,主要从事超高层结构设计及研究,Email:wanzhengyi11@163.com。
基金:
尊敬的用户,本篇文章需要2元,点击支付交费后阅读
参考文献[1] 李英明,姬淑艳,唐洋洋,等.山地建筑结构特殊问题与研究进展[J].建筑结构,2019,49(19):77-78.
[2] 唐洋洋,李英民,姜宝龙.设置水平接地构件的掉层RC框架结构振动台试验研究[J].土木工程学报,2020,53(3):28-37.
[3] 杨佑发,肖淳,谭曦.主余震作用下山地掉层框架结构的易损性分析[J].地震工程学报,2020,42(2):290-298.
[4] 夏洪流,吴寒,张九荔,等.核心剪力墙嵌固位置对掉层框剪结构抗震性能的影响[J].重庆大学学报,2019,42(11):10-18.
[5] 李静,王博,梁佶,等.掉层框架结构隔震技术分析及效果研究[J]城市建筑,2019,16(27):122-125.
[6] 吴茜玲,李英民.山地掉层框架结构振型分解法合理振型数的研究[J].结构工程师,2020,36(5):81-88.
[7] 徐诗童,余文柏.重庆某连续斜坡上带核心筒的框架-剪力墙掉层结构基础嵌固设计[J].建筑结构,2020,50(11):96-102.
[8] 张小良,齐建林,马帧.某山地高层住宅基础设计与研究[J].建筑结构,2020,50(10):122-128.
[9] 邸明尧,石赞红,杨兴义,等.基于减震技术某学校山地建筑设计实例[J].建筑结构,2019,49(S2):459-463.
[10] 何云,李轩直.某高陡坡地桩箱复合基础嵌固层的有效性分析[J]建筑科学,2019,35(9):19-25.
[11] 张清亮.山地掉层框架结构桩-土-结构相互作用研究[D].重庆:重庆大学,2019.
[12] 山地建筑结构设计标准:JGJ/T 472—2020[S].北京:中国建筑工业出版社,2020.
Discussion on influence of dropped floor numbers on seismic performance of frame-supported structures
WAN Zhengyi
(ChongQing Architectural Design Institute Co., LTD.)
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
411 0 0
文字:     A-     A+     默认 取消