Uncertainties in the building process

Bulletin of the Polish Academy of Sciences. Technical Sciences

A.S. NowakCorresponding authorDepartment of Civil Engineering, University of Nebraska, Lincoln, NE 68588, USAEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  A.M. RakoczyDepartment of Civil Engineering, University of Nebraska, Lincoln, NE 68588, USAOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Department of Civil Engineering, University of Nebraska, Lincoln, NE 68588, USA

关键词: Keywords : loads;    resistance;    bias factor;    coefficient of variation;    reliability index;    limit states;    human error;   

DOI  :  10.2478/bpasts-2013-0011

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

Load and resistance have to be treated as random variables because of natural and man-made uncertainties. Statistical parameters, i.e. bias factors and coefficients of variation, are presented for natural effects of dead load, live load for buildings and bridges, and environmental loads. Man-made effects are more difficult to quantify as they include also human errors. For resistance, the uncertainties are considered as a combination of three factors: material, fabrication and professional. The statistical parameters are shown for structural steel, reinforced concrete, and prestressed concrete. These parameters allow for calculation of the reliability indices for structural components and assessment of the effect of uncertainties in load and resistance on the structural safety

【 授权许可】

Unknown