基于风险管理的整体钢平台变形预警指标研究

doi:10.16265/j.cnki.issn 1003-3033.2021.06.007

中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (6): 56-63.doi: 10.16265/j.cnki.issn 1003-3033.2021.06.007

• 安全社会科学与安全管理 • 上一篇下一篇

基于风险管理的整体钢平台变形预警指标研究

沈阳工程师, 徐磊教授级高级工程师, 王少纯工程师

上海建工一建集团有限公司, 上海 200120

收稿日期:2021-03-01 修回日期:2021-05-15 出版日期:2021-06-28 发布日期:2021-12-28
作者简介:沈阳 (1990—),男,江苏宝应人,博士,工程师,主要从事土木工程施工技术工作。E-mail: swiftrings@126.com。
基金资助:
国家重点研发计划项目(2017YFC0805500);上海市青年科技英才扬帆计划项目(20YF1417800);上海建工集团股份有限公司重点科研项目(20JCSF-06)。

Research on early-warning index for deformation of integrated scaffoldingand formwork with steel platform based on risk management

SHEN Yang, XU Lei, WANG Shaochun

Shanghai Construction No. 1 Group Co., Ltd., Shanghai 200120, China

Received:2021-03-01 Revised:2021-05-15 Online:2021-06-28 Published:2021-12-28

摘要/Abstract

摘要： 超高层建筑施工过程中整体钢平台装备易发生失稳破坏,为解决其安全风险预警难题,采用最不利条件下结构变形作为评估整体钢平台安全风险特性的核心指标,提出变形预警指标的确定方法。首先,基于整体钢平台装备构成的系统分析,针对正常状态和极限状态分析装备失效模式,提出失效风险等级的划分方法;然后,结合整体钢平台结构变形发展特性,建立基于风险管理的四级变形预警指标确定方法;最后,选择整体钢平台实际工程开展案例分析。结果表明:通过确定风险等级标准和风险值,可获取钢平台装备模型建立条件,进而确定变形预警指标。该方法可在分析失效路径与失效模式的基础上,通过有限元模型计算获得四级变形预警指标值,该方法具备一定的科学性和可行性。

关键词: 风险管理, 整体钢平台, 变形预警指标, 超高层建筑, 装备结构失效

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.

Key words: risk management, integrated scaffolding and formwork with steel platform, early-warning deformation index, super high-rise building, equipment structural failure

中图分类号:

X924.2

沈阳, 徐磊, 王少纯. 基于风险管理的整体钢平台变形预警指标研究[J]. 中国安全科学学报, 2021, 31(6): 56-63.

SHEN Yang, XU Lei, WANG Shaochun. Research on early-warning index for deformation of integrated scaffoldingand formwork with steel platform based on risk management[J]. China Safety Science Journal, 2021, 31(6): 56-63.

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基于风险管理的整体钢平台变形预警指标研究

Research on early-warning index for deformation of integrated scaffoldingand formwork with steel platform based on risk management

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