Steel structure roof design of exhibition hall in part Ⅳ expansion project of Canton Fair Complex
The steel structure roof of exhibition hall in part Ⅳ expansion project of Canton Fair Complex is composed of Pearl River Walkway,standard exhibition hall and truck passage.In order to meet the functional requirements of the owner for the span and clear height of the standard exhibition hall,the structural systems of five kinds of steel structure roofs were compared and selected.Finally,the structural system of the inverted triangular three-dimensional truss with the bottom chord set with the piercing prestressed steel bar was adopted.The basic design information of the adopted structural system was introduced,and the load analysis,construction simulation analysis and roof progressive collapse resistance analysis were carried out.The results show that the adopted structural scheme is safe,reliable and economical under the condition of meeting the needs of the owners,and all the indexes meet the requirements of the specification.
Canton Fair Complexsteel structure roofprestressed steel structureinverted triangular three-dimensional truss
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