( 2 ) the change of ratio of spans has a great effect on the whole bridge under dead load and sunshine temperature differential . on the contrary , it has a smaller effect on the bridge under annual temperature change ( 2 )跨径比值变化，对主梁、桥墩在自重荷载与日温差作用下的受力有较大影响，而对主梁、桥墩在年温度变化荷载下的受力影响较小。
In the 5th chapter , single steel bracket of slts under violent external load is supposed to be invalid , structural response and bearing capacity under dead load at that moment of bracket invalidation is analyzed 在第五章中，假定在外荷载的作用下，网架结构的单个支撑钢牛腿出现失效，研究在牛腿失效瞬时结构在恒载作用下的承载能力和工作状态。
Basing on wenhui bridge ( the cable - stayed bridge ) , optimization of cable tension under dead loads , control of the course of cantilever casting concrete , and spatial analysis of the pylon and gird during construction were discussed in this paper 本文以文晖大桥为背景，就恒载索力优化、悬浇过程控制及索塔和主梁分段施工过程的空间分析等问题进行研究。
Finite element modal analysis of large span cable - stayed bridges is a " pre - stress modal analysis " based on the deformed equilibrium configuration due to dead load and cable pre - tensions . starting from the initial equilibrium configuration might have a minimal 3 .考虑了恒载效应对模态分析的影响，即从初始平衡构型进行模态分析，是带有“初应力”的模态分析。
The basic conclusions are as follows : ( 1 ) under the common effects of dead load and temperature , the internal forces of two intermediate piers are obviously larger than those of two side piers of five - span continuous rigid frame bridge 通过本文的研究，得出如下主要结论： ( 1 )对于五跨连续刚构桥，在自重荷载和温度变化作用下，两中墩内力显著小于两边墩内力。
In this article , the method how to establish the dimensional model of existing double - curved arch bridge by making use of large software ansys is studied , a way to assess loading ability combining the dead load experiment is brought out 本课题主要研究了如何用大型有限元程序ansys建立既有双曲拱桥的空间模型，并运用空间分析结合荷载试验对承载能力进行评定的方法。
By contrasting curved bridge and straight bridge , influence of dead load and prestressing force on the stress in cantilever casting period of curved bridges is analyzed . in this paper , the controlling problem in construction phase is specially studied 通过曲线箱梁桥与直线箱梁桥的对比，模拟计算并着重分析了施工阶段自重、预应力等因素对曲线箱梁桥悬浇时应力的影响。
Through testing eight composite beams with partial shear connectors under dead load and repeated load , the effect that repeated load acts on composite beams is analyzed on the basis of the test process , phenomena , and result 摘要通过8根部分剪力连接组合梁的静载和重复加载试验，在对试验过程、试验现象以及试验结果分析的基础上研究了重复加载对部分剪力连接组合梁受力性能的影响。
In use of the comprehensive method , least squares method is used to adjust cable force by limiting moment of girder of cable stayed bridges . this article proposes a conception of reasonable moment under dead load and gives a method to solve this reasonable moment 针对最小二乘法调束要求的主梁弯矩控制条件，提出主梁合理恒载弯矩这个概念，并推导主梁合理恒载弯矩的求解方法。
The damage capacity is estimated by test data . the randomness of materials and earthquake are considered during process of analysis . influences of dead load on the structural reliability were considered too 采用montecarlo随机模拟法，分别分析了只考虑地震作用随机性以及同时考虑材料强度和地震作用的随机性时对结构的失效概率的影响，表明了材料强度的随机性对结构总体失效概率有一定的影响。
