Citation

Shen Y, Xu L, Wang S. China Saf. Sci. J. 2021; 31(6): 56-63.

Copyright

(Copyright © 2021, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2021.06.007

PMID

unavailable

Abstract

In order to provide early-warning for possible instability and damage of integrated scaffolding and formwork with steel platform during construction of super high-rise buildings, structural deformation under most unfavorable conditions is adopted as core index to evaluate safety risk of the scaffolding and formwork, and determination methods for early-warning indicators of deformation are put forward. Firstly, based on systematic analysis on equipment composition, failure modes were analyzed for normal states and limit states, and classification method of failure risk level was put forward. Secondly, determination method for four-level deformation early-warning indices based on risk management was established considering deformation developing characteristics. Finally, case study on a typical integrated steel platform project was carried out. The results show that by determining risk level standards and risk value, establishing conditions for analysis models can be obtained and hence early-warning deformation indices be acquired. Moreover, the proposed method is verified to be scientific and feasible as it, based on analysis of failure paths and modes, can obtain values of early-warning indices through calculation of finite element models. © 2021 China Safety Science Journal. All rights reserved.

Language: zh