Title: Structural robustness of long-span cable-supported bridges segmented by zipper-stoppers to prevent progressive collapse
Language: English
Authors: Shoghijavan, Mohammad 
Starossek, Uwe 
Issue Date: 2018
Source: IABSE Conference, Kuala Lumpur, Engineering the Developing World : 593-600 (2018)
Abstract (english): 
This paper investigates the structural behaviour of a long-span cable-supported bridge segmented by zipper-stoppers after the sudden rupture of some of its cables. Increasing the robustness of the structural system through segmentation is a possible approach to prevent progressive collapse in bridges due to cable failure. In this concept, zipper-stoppers, at the segment borders, are strong components with the multiple of the load bearing capacity of usual members and are designed to arrest a zipper-like collapse in the segment where the initial damage occurred. For finding the "stress increase ratio" of the zipper-stopper, an analytical approach based on differential equations of the system will be used. Then, an approximation function for a simplified bridge model in a cable-loss scenario will be derived. The proposed approximation function has been checked by numerical models, and its good accuracy has been proven.
Conference: IABSE Conference, Kuala Lumpur 2018 : Engineering the Developing World 
URI: http://hdl.handle.net/11420/2651
ISBN: 978-385748159-8
Institute: Baustatik B-4 
Document Type: Chapter/Article (Proceedings)
Project: Investigation of Progressive Collapse in Seismically Designed Steel Structures 
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