Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reliability assessment of steel scaffold shoring structures for concrete formwork
Highlights ► A reliability analysis of steel scaffold shoring systems was presented. ► Shoring load is mainly due to dead load effect. ► Shoring load has a relatively large variability. ► Sensitivities of scaffold strength to different random properties have been studied. ► Second order inelastic analysis is used to predict the structure’s strength.
Abstract Many failures of concrete structures during construction are traceable to the collapse of formwork shoring systems. A reliability analysis for typical steel scaffold shoring structures is presented herein utilizing recent survey data on geometric and mechanical properties of steel scaffold members, and a second-order inelastic structural analysis model. Published shore load surveys were analyzed to develop the probabilistic models for loads acting on scaffolds during concrete placement. The paper investigates the mode of failure, the effects of different random variables on the variability of structural strength, and the reliability of the analyzed scaffold structures. The reliability framework can be used to improve the current working load limit basis for the design of steel scaffold structures and make scaffold design risk-consistent.
Reliability assessment of steel scaffold shoring structures for concrete formwork
Highlights ► A reliability analysis of steel scaffold shoring systems was presented. ► Shoring load is mainly due to dead load effect. ► Shoring load has a relatively large variability. ► Sensitivities of scaffold strength to different random properties have been studied. ► Second order inelastic analysis is used to predict the structure’s strength.
Abstract Many failures of concrete structures during construction are traceable to the collapse of formwork shoring systems. A reliability analysis for typical steel scaffold shoring structures is presented herein utilizing recent survey data on geometric and mechanical properties of steel scaffold members, and a second-order inelastic structural analysis model. Published shore load surveys were analyzed to develop the probabilistic models for loads acting on scaffolds during concrete placement. The paper investigates the mode of failure, the effects of different random variables on the variability of structural strength, and the reliability of the analyzed scaffold structures. The reliability framework can be used to improve the current working load limit basis for the design of steel scaffold structures and make scaffold design risk-consistent.
Reliability assessment of steel scaffold shoring structures for concrete formwork
Zhang, Hao (Autor:in) / Rasmussen, Kim J.R. (Autor:in) / Ellingwood, Bruce R. (Autor:in)
Engineering Structures ; 36 ; 81-89
21.11.2011
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Reliability assessment of steel scaffold shoring structures for concrete formwork
| Online Contents | 2012
Development of the IoT-based Monitoring System for Scaffold Shoring System of Concrete Formwork
| DOAJ | 2018
DESIGN GUIDELINES FOR FORMWORK SHORING TOWERS
Online Contents | 1996
Rational Design of Shoring-Tower-Based Formwork
| Online Contents | 1995