Instruments of Probabilistic Optimisation of Load Bearing Capacity and Reliability of Statically Indeterminate Complex Structures

Archives of civil engineering

Z. KowalCorresponding authorDepartment of Mechanics, Metal Structures and Computer Methods, Faculty of Civil EngineeringEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Department of Mechanics, Metal Structures and Computer Methods, Faculty of Civil Engineering

关键词: Keywords: load bearing capacity;    reliability;    probabilistic optimisation;    complex structures;   

DOI  :  10.2478/ace-2014-0004

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

The paper presents the method of probabilistic optimisation of load bearing capacity and reliability of statically indeterminate bar structures, and of coupling of members in kinematically admissible failure mechanisms (KAFM), which contain minimal critical sets of elements (MCSE). The latter are characterised by the fact that if only a single element is operational, the whole set is operational too. A method of increasing load bearing capacity and reliability of KAFM built from bars dimensioned in accordance with the code is presented. The paper also shows estimation of load bearing capacity and reliability of KAFM of the optimised structures containing elastic-plastic bars with quasi-brittle connections with nodes. The necessity of increasing connection of load bearing capacity and reliability in relation to bar reliability in order to prevent bars from being excluded from MCSE due to connection fracture is estimated.

【 授权许可】

Unknown