针对1 000 k V榆横—潍坊交流输电线路工程铁塔基础作用力大、工程环境及地质条件复杂的实际情况,从基础选型及构造措施入手,进行基础优化设计。通过在基础设计中采用单桩基础、板式基础、群桩基础、钢筋布置、地脚螺栓偏心及基础圆形...针对1 000 k V榆横—潍坊交流输电线路工程铁塔基础作用力大、工程环境及地质条件复杂的实际情况,从基础选型及构造措施入手,进行基础优化设计。通过在基础设计中采用单桩基础、板式基础、群桩基础、钢筋布置、地脚螺栓偏心及基础圆形保护帽等各种优化措施,取得了良好的社会效益和经济效益。展开更多
Given the fact that FRP bolts for roadway support are often under a certain amount of eccentric load,we studied the problems of failure of FRP bolt-ends using mechanical analysis,numerical simulation and a laboratory ...Given the fact that FRP bolts for roadway support are often under a certain amount of eccentric load,we studied the problems of failure of FRP bolt-ends using mechanical analysis,numerical simulation and a laboratory experiment to reveal the FRP bolt-end failure mechanism.The results show that bolt-end stress increases rapidly,making the maximum stress under an eccentric load to be 5 to 7 times greater than that under a normal load,resulting first in the formation of some fractures at the bolt-end,which then spreads to the entire cross-section of the bolt.展开更多
基金Project 08040106839 supported by the Excellent Youth Foundation of Anhui Province
文摘Given the fact that FRP bolts for roadway support are often under a certain amount of eccentric load,we studied the problems of failure of FRP bolt-ends using mechanical analysis,numerical simulation and a laboratory experiment to reveal the FRP bolt-end failure mechanism.The results show that bolt-end stress increases rapidly,making the maximum stress under an eccentric load to be 5 to 7 times greater than that under a normal load,resulting first in the formation of some fractures at the bolt-end,which then spreads to the entire cross-section of the bolt.
