柔性围护结构风洞测力试验

Tunnel Test on Flexible Preservation Structures

利用风洞试验测量篷布等柔性材料围护结构受风载作用时产生的集中力 ,给出了模型集中力系数随风向角的变化曲线及集中力大小和方向的算法 ,重复性试验表明 ,试验数据可靠。对比试验分析了刚性及柔性材料模型的压力系数。提供了柔性材料受风载作用时集中力的测量方法 。

How to gauge the concentrated force of enclosure of flexible materials as cloths bearing the wind load through tunnel test is discussed. The test results give the curves of the coefficient of concentrated force with the angle of wind and the way to get the value and direction of concentrated force. The repeated test proves that the test data are reliable.The coefficient of wind pressure of rigid and flexible material models are tested in contrast.A new way to measure the concentrated force of flexible materials undertaking the wind load and the basis of structure design is provided.