COST-MODELING FOR THE ECONOMIC APPRAISAL OF JOINT DETAILS IN STEEL TRUSSES

摘要

Codes of practice are expected to provide or indicate tolerable levels of risk that yield equitable balance in benefits and costs. However, no non-probability-based design method accedes this expectation explicitly. Thus, the potential losses associated with the design requirements of BS5950 (1985) for joints of truss systems are examined. Variables describing loadings, material and geometrical properties are treated as random. Modules based on value analysis and the first-order reliability method are developed to highlight the trends of the potential losses as critical parameters are varied.