Reliability-Based Load Requirements for Formwork Shores during Concrete Placement

被引：16

作者：

Zhang, Hao ^{[1
]}

Reynolds, James ^{[1
]}

Rasmussen, Kim J. R. ^{[1
]}

Ellingwood, Bruce R. ^{[2
]}

机构：

[1] Univ Sydney, Sch Civil Engn, Sydney, NSW 2006, Australia

[2] Colorado State Univ, Dept Civil & Environm Engn, Ft Collins, CO 80523 USA

来源：

JOURNAL OF STRUCTURAL ENGINEERING | 2016年 / 142卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

Structural safety and reliability; SCAFFOLD SYSTEMS; CONSTRUCTION; FALSEWORK; CRITERIA;

D O I：

10.1061/(ASCE)ST.1943-541X.0001362

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

One challenge in assessing the safety of concrete formwork supporting structures is the difficulty in predicting the loads on shores. Very limited studies on shore loads are available in the literature. This paper presents the results of a shore load investigation undertaken at three construction sites in Sydney. The study is focused on the vertical loads on shores during and following concrete placement. The statistical characteristics of the dead load effect and live load effect are determined. Structural reliability analyses are conducted to evaluate the reliability implications of the allowable stress design and limit state design approaches for shoring structures. An optimal load combination is derived considering the probabilistic characteristics of shore loads. (C) 2015 American Society of Civil Engineers.

引用

页数：9

共 24 条

[1]

ACI (American Concrete Institute), 2004, 34702 ACI

[2]

AGARWAL RK, 1974, ACI J P, V71, P559

[3]

[Anonymous], THESIS

[4]

BJORHOVDE R, 1978, J STRUCT DIV-ASCE, V104, P1371

[5]

Carper K.L., 1987, J PERFORM CONSTR FAC, V1, P132, DOI [10.1061/(ASCE)0887-3828(1987)1:3(132), DOI 10.1061/(ASCE)0887-3828(1987)1:3(132)]

[6]

ELLINGWOOD B, 1982, J STRUCT DIV-ASCE, V108, P978

[7]

Ellingwood B., 1980, NBS Special Publication, V577

[8] PROBABILITY-BASED CODIFIED DESIGN - PAST ACCOMPLISHMENTS AND FUTURE CHALLENGES [J].

ELLINGWOOD, BR .

STRUCTURAL SAFETY, 1994, 13 (03) :159-176

[9] Structural reliability of multistory buildings during construction [J].

Epaarachchi, DC ;

Stewart, MG ;

Rosowsky, DV .

JOURNAL OF STRUCTURAL ENGINEERING-ASCE, 2002, 128 (02) :205-213

[10]

Fattal S., 1983, NBS BUILDING SCI SER, V146

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