REDUNDANCY-BASED SAFETY PERFORMANCE OPTIMIZATION OF LARGE-SCALE GLASS FACADE STRUCTURES
Structural integrity of large-scale glass fa(c)ades is imperative for public safety.Different from traditional structures,glass panels are brittle in nature; consequently glass fa(c)ade structures are vulnerable to vertical and horizontal loads.The situation is however exacerbated due to the fact that the space embraced by a glass facade typically is a densely populated public area.Therefore,structural safety of large-scale glass fa(c)ades is one of the major challenges facing todays engineers.To this end,this paper proposes the application of safety performance optimization based on phased-setting-redundancy during the damage course of glass fa(c)ade structures.Two of the most serious damage forms of a glass fa(c)ade structure are progressive collapse and glass falling.To the component damage stage and structure damage stage,strength redundancy and structure redundancy will enhance partial load carrying capacity and integrity of the structure respectively,impeding progressive collapse through providing alternate load paths.During the glass damage phase,redundancy settings based on different timings are useful for keeping glass panels from cracking,falling and injury accident.Considering redundancy-based optimization measures during conceptual design,front-end engineering design and detailed engineering design can improve the reliability and durability of glass fa(c)ade structures.This concept can be adopted to improve long-term performance of glass fa(c)ade structures,develop safe designs under special loads and under impact of disasters.
Redundancy glass fa(c)ade structure safety performance optimization durability
Jinming Ma Don Chen Xiaoguang Zhang Zhenguo Sui
Department of Building Engineering, College of Civil Engineering, Tongji University, Shanghai 200092 Department of Engineering Technology & Construction Management, College of Engineering, University o TongjiArchitectural Design(Group)Co.,Ltd., Shanghai 200092, P.R.China
国际会议
The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)
武汉
英文
503-507
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）