铝蜂窝道面板承载能力试验

为了研究铝蜂窝道面板的承载能力,铺筑了室外试验段并进行了现场试验,使用直径30cm刚性承载板模拟飞机轮载,在道面板表面布置位移传感器和应变片,测试了铝蜂窝道面板在不同地基强度、不同地表状态下板体变形、表面应变。试验结果表明:地基强度的增加能改善道面板的受力情况,减少弯沉。当地基强度从70MPa增加到100MPa时,100kW荷载作用下最大变形减小了39.2%。而脱空会使板底出现过大应力,显著降低道面板的承载能力。

Experimental Study on the Bearing Capacity of the Aluminum Honeycomb Sandwich Panel

In order to study the bearing capacity of the aluminum honeycomb sandwich panel, outdoor test road was built, rigid bearing plate with 30 centimeter in diameter was used to simulate the tire load of aircraft. Displacement sensors and strain gauges were placed on the surface of the sandwich panel, vertical deformation and surface strain were measured with the foundation of different resilient and unevenness. Experiment results show that the rise of foundation modulus can improve the stress condition, reduce the vertical deformation. The void can produce large deformation on the bottom of the panel, reduce its bearing capacity.