W4 Closed Membrane Structural Engineering of Limestone Material yard of Rizhao Iron and Steel Co., Ltd  

This project is a typical skeleton supporting membrane structure. The plane projection of the building is rectangular. The length of the building is 151 meters in East-West direction, and the width of the building is 48 meters in North-South direction. The highest point of the steel skeleton is about 22 meters high. The structural roof is covered by 10 independent roof membrane units, and the structural elevation is also covered by wall membranes: the longitudinal walls on both sides are divided into 20 membrane units, and the gables on both sides are divided into 4 membrane units.