倒塌分析在某500m級超高層建筑抗震設計中的應用*
陸新征1，楊蔚彪2，盧嘯3，齊五輝2，劉斌2，張萬開2，葉列平1
- 摘 要
-
(1 清華大學土木系，北京 100084； 2 北京市建筑設計研究院有限公司，北京 100045； 3 北京交通大學土木工程學院，北京 100044)
［摘要］近年來我國超高層建筑發(fā)展迅速，其抗震安全性受到廣泛重視。基于彈塑性計算的倒塌分析是研究結構抗震安全的重要手段，并已在常規(guī)結構設計中得到大量應用，但是在超高層建筑中此類研究還很少。因此，結合某500 m級超高層建筑抗震設計實例，采用倒塌分析對其抗震設計方法及改進措施進行了系統(tǒng)的研究，研究工作涵蓋工程設計的主要過程，從結構體系到設計參數(shù)，再到具體構件的設計方案。研究工作表明，倒塌分析可以幫助改進結構抗震設計，提高抗震性能，同時控制工程造價。研究可為類似超高層建筑抗震設計提供參考。［關鍵詞］超高層建筑; 抗震設計; 倒塌分析; 最小剪力系數(shù)中圖分類號：TU318+.2，TU973 文獻標識碼：A 文章編號：1002-848X(2015)23-0091-07
Application of collapse analysis in seismic design of a super-tall building over 500mLu Xinzheng1, Yang Weibiao2, Lu Xiao3, Qi Wuhui2, Liu Bin2, Zhang Wankai2, Ye Lieping1(1 Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 2 Beijing Institute of Architectural Design, Beijing 100045, China; 3 School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China)Abstract: In recent decade super-tall buildings develop quickly in China, and the seismic safety is attached great importance. Collapse analysis based on elasto-plastic calculation is an important method to study the structural seismic safety, which is widely used in the regular structural designs. However, the application of this method in super-tall buildings is rare. Hence, based on the seismic design of a super-tall building over 500m, collapse analysis was adopted to investigate the seismic design method and the improvement measures systematically. The major processes during the engineering design were covered, including the structural system, design parameters and design schemes of specific members. The research results show that collapse analysis can help improve the structural seismic design, enhance the seismic performance and control the construction cost. The research can provide reference for seismic design of similar super-tall buildings.Keywords:super-tall building; seismic design; collapse analysis; minimum shear force coefficient
*國家自然科學基金(51408034)，國家科技支撐計劃(2015BAK17B00)，中央高?；究蒲袠I(yè)務費專項資金（2014JBM078，2015RC057）。作者簡介：陸新征，博士，教授，博士生導師，Email：luxz@tsinghua.edu.cn。
