EFFECT OF DYNAMIC UNLOADING OF CABLES IN COLLAPSE PROGRESSION THROUGH A CABLE STAYED BRIDGE

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DAS RAJARSHI; PANDEY SOUMYA A.D.; MAHESH M.J.; SAINI P.; ANVESH S.

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Journal: ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING) Year:2016 | Volume:17 | Issue:4 Page(s): 397-416

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Title

EFFECT OF DYNAMIC UNLOADING OF CABLES IN COLLAPSE PROGRESSION THROUGH A CABLE STAYED BRIDGE

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Keywords

PROGRESSIVE FAILURE

STATIC ANALYSIS

NONLINEAR ANALYSIS

DYNAMIC ANALYSIS

Abstract

Progressive collapse is a continuous spread and magnification of localized failure in structures, caused by an accidental load, resulting in a cascade of failure affecting a large portion of the structure. Although alternate path method is the most widely used method to increase the structural robustness of bare frame structures against progressive collapse, it should be further developed for other structures, and especially cable stayed bridges as they are highly sensitive to dynamic impact loading. This paper demonstrates modelling and analysis of a typical cable stayed bridge through two important analytical procedures, i.e., nonlinear static and nonlinear dynamic. Furthermore, the response of the structural model is discussed for multiple types of cable loss cases. Two different progressive collapse patterns are identified for nonlinear static and dynamic procedures as the dynamic unloading function is considered in the DYNAMIC ANALYSIS procedure. The results also indicate a decrease in the possibility of failure progression of the cable stayed model when the location of the failed cables is closer to the pylon.

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APA: Copy

DAS, RAJARSHI, PANDEY SOUMYA, A.D., MAHESH, M.J., SAINI, P., & ANVESH, S.. (2016). EFFECT OF DYNAMIC UNLOADING OF CABLES IN COLLAPSE PROGRESSION THROUGH A CABLE STAYED BRIDGE. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), 17(4), 397-416. SID. https://sid.ir/paper/299177/en

Vancouver: Copy

DAS RAJARSHI, PANDEY SOUMYA A.D., MAHESH M.J., SAINI P., ANVESH S.. EFFECT OF DYNAMIC UNLOADING OF CABLES IN COLLAPSE PROGRESSION THROUGH A CABLE STAYED BRIDGE. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING)[Internet]. 2016;17(4):397-416. Available from: https://sid.ir/paper/299177/en

IEEE: Copy

RAJARSHI DAS, A.D. PANDEY SOUMYA, M.J. MAHESH, P. SAINI, and S. ANVESH, “EFFECT OF DYNAMIC UNLOADING OF CABLES IN COLLAPSE PROGRESSION THROUGH A CABLE STAYED BRIDGE,” ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), vol. 17, no. 4, pp. 397–416, 2016, [Online]. Available: https://sid.ir/paper/299177/en

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