A Comparative Analysis On Joint Connection Of Code For Design Steel Structures Between U.S And China

At present, the rapid development of steel structures has aroused national attention, andmany countries have actively promulgated the related norms and guidelines. In this paper, bychoosing the most basic problems, which are the weld connection, bolt connection, andoptimization design of the node area three aspects respectively, comparatively studies themechanical properties of the connected components, expression formula, as well as the practicalapplication examples.First of all, introduce the development and good prospect of steel construction in detail;clarify the development course of steel construction in both USA and China, together with thespecification features and specification ideas; then make a brief explanation of the modificationand innovation in the specification respectively.Secondly, contract analysis the differences of component requirements and calculationformulas in American and China design specifications on steel structure, then through aexamples get the similarities and differences of calculation results and draw a related conclusion;Then, turns to the bolt connection of steel structure, through two different types, membranetype and pressure, especially from the component requirements and shear connection, smalleccentric tension connection and eccentric tension connection, as well as the one consideringboth two above separately, analysis the formula and results, make a clear comparison of thedifferences.Finally,discusses the differences in the requirements of the two specifications, and then takethe optimized design principle into account, analysis the node area; though effective widthmethod(China) and mean force method (USA) separately, come to a conclusion that the Chinesenorms are somewhat conservative.Through the contact analysis on he weld connection, bolt connection, and optimizationdesign of the node area three aspects of China and USA design specification of steel structurerespectively, this paper has not only showed the he differences of the two countries specificationclearly, but also let us know our shortcomings meanwhile, to some extent, it has provide areference for future code revision.