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Controllable Design on Failure Mode for Steel Frames Considering Regional Collapse-resistant Mechanism by Wei-hui Zhong; Yu-hui Zheng; Zheng Tan; Bao Meng; Yue Zhang; Shi-Chao Duan is a Engineering article available to read on EtoBox.

What is Controllable Design on Failure Mode for Steel Frames Considering Regional Collapse-resistant Mechanism about?

Controlling the collapse area of a structure is a direct collapse-resistant design requirement. However, existing theoretical models for collapse-resistant design establish the demand–capability relationship by considering only the lower-limit capacity of the damaged regions of a structure, and ignore the limit state of the surrounding structures. With the development of chain failure behaviors in a damaged structure, the member mechanism cannot resist accumulated unbalanced loads. Therefore, a higher level collapse-resistant mechanism should be considered in the design to ensure that the structure still has the controllable and expected failure modes. To this end, this paper proposes a collapse-resistant design concept with multilevel collapse-resistant behaviors characterized by a steel frame structural system with force-controlled members (FCMs). The FCM was designed based on the upper- and lower-limit internal force-controlled equations proposed in this study. Under the designed load, following the failure of a key member, unbalanced loads are redistributed throughout the remaining structure via a member mechanism. A regional mechanism is triggered (connection between FCM and s

Who reads Controllable Design on Failure Mode for Steel Frames Considering Regional Collapse-resistant Mechanism?

Author

Wei-hui Zhong; Yu-hui Zheng; Zheng Tan; Bao Meng; Yue Zhang; Shi-Chao Duan

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)