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Assessment Of Software For Blast Loading And Structural Response Analysis Using A Lightweight Steel-Joist Roof As A Test Case, Christopher Tuan
Assessment Of Software For Blast Loading And Structural Response Analysis Using A Lightweight Steel-Joist Roof As A Test Case, Christopher Tuan
Christopher Y. Tuan
The purpose of this paper is to evaluate the current multihazard loading environments when future blast loadings are included. While most of the currently available software programs for the physical testing of normal design loading conditions have been validated, the testing does not include the blast environment. It has not been determined whether these programs can be used when blast loads are included. Currently, designers use multiple software packages to perform multihazard analyses when blast loads are involved, making it difficult to compare the results. This analysis has as major topics air-blast and structural responses. The three standard air-blast codes …
Fatigue Strength Of End-Coped Crane Runway Girders, Xiaoli Tong, Christopher Tuan, Jianping Yang, Jiaqi Zhang, Qingrui Yue
Fatigue Strength Of End-Coped Crane Runway Girders, Xiaoli Tong, Christopher Tuan, Jianping Yang, Jiaqi Zhang, Qingrui Yue
Christopher Y. Tuan
Fatigue cracks were found on a series of end-coped crane runway girders after 14 years of service in a steel mill building in China. Two typical crane runway girders with different spans were studied in this paper. Finite element analyses were conducted to investigate the stress concentration at the coped ends. Analytical results showed the stress concentration effect was highly localized and the stress concentration factor decreased with increasing cope radius and decreasing total depth. The analytical results agreed well with the field measured data. Fatigue tests were conducted to determine the fatigue strength using eight 1/5-scaled end-coped girder specimens. …