Design for Steel Structure of Heavy Load and LargeSpan Roof

摘要

A roof garden is a round shape with diameter of 42.2m and with the total loads of 20kN/m2. Afterrncomprehensive comparison, decision was made to use steel cross-grid beam structure of large span which thernsection was H shape being welded. The paper has introduced the comparison of steel structure proposals, supportrnand assembling joints structures, which could be as a reference to designers.