飞机滑行荷载对水泥混凝土道面及下穿通道的动力响应影响  

Effect of aircraft taxiing load on dynamic response of cement concrete pavement and underpass

作　　者：李飞龙 姜昌山 蔡国庆[3] 余虔 韩进宝 张合青 Li Feilong;Jiang Changshan;Cai Guoqing;Yu Qian;Han Jinbao;Zhang Heqing(China Airport Planning and Design Institute Co.,Ltd.,Beijing 100029,China;Observation and Research Base of Transport Industry of Airport Engineering Safety and Long-Term Performance,Beijing 100312,China;Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]民航机场设计研究总院有限公司,北京100029 [2]机场工程安全与长期性能交通运输行业野外科学观测研究基地,北京100312 [3]北京交通大学,北京100044

出　　处：《土木工程学报》2024年第S2期80-87,共8页China Civil Engineering Journal

基　　金：云南省科技厅重点研发计划(202303AA080011);北京市博士后工作经费资助项目。

摘　　要：基于数值模拟分析了不同飞机滑行荷载对道面和下穿通道动力响应与安全性的影响。结果表明:B777-9飞机滑行荷载引起道面的竖向峰值位移是B737-10飞机引起道面峰值位移的3.52倍;道面下方有下穿通道和飞机滑行荷载重量对道面底板的最大主应力影响更大,道面底板的最大主应力为3.59MPa。当飞机在下穿通道的上部道面上滑行时,B777-9飞机和围岩压力能引起通道结构顶部产生更大的轴力和弯矩,其数值分别为-347.91kN和-71.61kN·m;分析得出通道结构符合规范安全,但通道顶板的安全系数低于通道其他位置处的安全系数。The effects of different aircraft sliding loads on the dynamic response and safety of cement-concrete pavements and underpass structures were analyzed by numerical simulation.The results show that the vertical peak displacement of the B777-9 aircraft induced by the skidding force is 3.52 times that of the B737-10 aircraft induced by the skidding load.When there is an underpass under the pavement,the maximum principal stress of cement concrete pavement floor is 3.59MPa.When the aircraft glides perpendicular to the cementconcrete pavement above the underpass,the B777-9 aircraft could cause greater axial force and bending moment on the top of the passage structure of-347.91kN and-71.61kN·m,respectively.The analysis shows that the structure of the channel meets the standard safety,but the safety factor of the top plate of the channel is lower than that of other positions of the channel.

关 键 词：飞机滑行荷载 水泥混凝土道面 下穿通道 数值模拟 动力响应 安全性 

分 类 号：TU312[建筑科学—结构工程]