This paper mainly introduces the structural design of a large conference center.The project is a high-level steel-frame struc-ture with a height of 27.6m and large-span spatial truss.It has irregular torsion,lots of floor slabs missing,and skip-floor columns.It belongs to the over-limit high-rise building.The following measures are taken for irregularities:A comparative analysis of structure elas-ticity under frequently occurred earthquakes is made based on two different software.The capacity checking under precautionary earth-quakes and rare earthquakes of key members is carried out.Analysis of elastic dynamic time-history and pushover have been taken,and the deflection and comfort of the large-span and big cantilever beams are calculated.The construction analysis of steel truss roof and two-side hanging system is optimized.The above analysis effectively guarantees the overall safety of the structure and achieves the predeter-mined seismic performance goals.
维普
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