Key points of wind-resistant design of skeleton membrane structure in typhoon

Key points of wind-resistant design of skeleton membrane structure in typhoon

1. the control of membrane surface stiffness.

Membrane surface stiffness in the case of a certain membrane pre-tension, the most important control factor is the curvature of the membrane surface. In the skeleton membrane structure in the video, the height difference between the ridge and the valley is small, the membrane surface is flat and the curvature is small, resulting in insufficient membrane surface stiffness and vibration.

2. Setting of pre-tension of valley cable.

The pre-tension of the valley cable in the span of the membrane unit is the main factor in controlling the curvature of the membrane surface at the stage of finding the shape of the membrane structure. If the pre-tension of the valley cable is small, the membrane surface will be flat. In the membrane structure in the video, the pre-tension of the valley cable is small, which not only leads to the obvious lack of membrane surface stiffness but also does not play a stabilizing and reinforcing role under the wind suction.