NUMERICAL ANALYSIS OF FIRE RESPONSE OF SPATIAL PRE-STRESSED STEE TRUSS IN FIRE
The computational model of the spatial pre-stressed steel truss subjected to fire load is established based on the previous work about analysis of the planar pre-stressed steel structures in fire.The model provides the convenience that the cables with higher tensile strength used in the structure can be set arbitrarily and stretched for more times,but all pre-stress lose of the cables set in the structure are not considered in the computational model.Numerical analysis of fire behavior of a spatial pre-stressed stainless steel truss is analyzed,and the spatial truss has the plan size of 3400x 1400.Effect of different factors on bearing capacity and fire behavior of the structure subjected to fire load is discussed based on numerical results.It is shown that fire condition,value of pre-tension,external loads and times of pre-tension have great effects on behavior and bearing capacity of the pre-stressed steel trusses in flre.The conclusions can be used as basis of fire-resistant design of the structures and in-depth analysis of fire behavior of the spatial pre-stressed steel trusses in fire.
Fire response spatial stainless steel truss pro-stressed numerical analysis
Xintang Wang Hongliang Sun Pingxin Sun Jinyi Zhang
Faculty of Architecture, Civil Engineering & Environment, Ningbo University, Ningbo 315211,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
205-210
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）