摘要
建立了小半径曲线桥上"轨道-梁-墩"一体化计算模型,分析其在温度变化和离心力作用下联合板位移以及侧向挡块的受力情况,对曲线半径、侧向挡块弹性垫板刚度和侧向挡块间距的影响规律进行了分析。通过对侧向挡块进行结构强度检算,认为侧向挡块具有较高的安全储备量。
A holistic computation module for ＂trackwork-girder-pier＂ on bridge at small radius curve is upbuilt in this paper.The displacement of joint slab and the stress of lateral block which are lead by the change of tempetature and the the action of centrifugal force are analyzed.And then the rule caused by the radius of curve,the rigidity of elastic pad of lateral block,the space between lateral blocks is summarized.Based on the structural strength calculating,it＇s confirmed that lateral block have high security reserves.
出处
《交通科技》
2011年第3期59-62,共4页
Transportation Science & Technology
