小梁

Differential governing equations of trapeziform box girder is yielded by using the principle of the stationary value of total potential energy.

分析了箱梁剪力滞效应产生的原因，用最小势能原理推导出梯形截面箱梁的剪力滞效应的控制微分方程，并应用FORTRAN语言编制相应的计算程序。

So, the factor of shear lag of box girder is researched by using the principle of the stationary value of the total potential energy, FEM and model test.

针对箱梁剪力滞效应研究不完善的现状，本文对箱梁剪力滞效应应用最小势能原理、有限元法和模型试验进行研究，并探讨了剪力滞效应的影响因素。

March 2008, already " introduction " La Shengli is opposite again Jiang Tao has his cousin " instructor ", will come in April between June, jiang Tao housekeep leased a building in Guilin city, bought much station computer, employ early or late more than 10 " man " eat to live together together; In April 2008, lasheng establishs church joist support of its wife's younger brother China how to handle 400 telephone calls, how to connect mobile phone He Xiaoling bind bilk undertakes on 400 number, will come in April between June, joist support China the person such as brother's son of its little brother, watch, fellow-townsman comes get together to and other places of Nanning, Guilin, do the line of business that had bilk of this one high-tech likewise.

2008年3月，已经&入门&的蓝胜立又对自己的表哥江滔进行&技术指导&，4月至6月间，江滔自立门户在桂林市租了房子，购买了多台电脑，先后雇用十余个&马仔&同吃同住；2008年4月，蓝胜立教会其小舅子梁承华如何办理400电话，如何把手机和小灵通捆绑在400号码上进行诈骗，4月至6月间，梁承华又纠集其弟弟、表侄、老乡等人来到南宁、桂林等地，同样干起了这一高科技诈骗的行当。

After fixing the two sides standard sections, the hoisting machine loosen rope, pull out the two end horizontal pin of pillar, lift the pillar to the place of two section standard section's middle angle steel, the operation staff leave the suspension coop.

待两侧标准节连接固定好后，卷扬机松绳，拔出顶梁两端横销，用手摇起重机上小吊杆将顶梁提到新接好的两节标准节中间框架角钢处，穿好横销并锁定，操作人员离开吊笼。

In the segment precasting, cantilever erection and bridge deck construction during the PAKSEY bridge construction, the precise surveying control results in the minimum error between the bridge deck line and the designed line.

在PAKSEY大桥的施工过程中，对节段梁的预制、节段梁的悬臂拼装以及桥面体系的施工进行了精密的测量控制，从而使桥面线形与设计线形的误差最小。

The mechanical behaviour of the bridge with and without middle diaphragm s in the loading-failure process is investigated in great detail.

以虚拟层合单元程序为基础，综合考虑结构的几何非线性和材料非线性，对一典型5跨简支连续小箱梁桥结构的极限承载力进行了分析，重点考察了在有、无跨中横隔梁时，结构从加载到破坏的全过程中受力性能的变化。

Constraint of the middle truss on the crossbeams approximates to absolute rigidity and the distance between the stringer and the middle low chord are small in the four-line through truss bridge with three main trusses, which produces much larger horizontal bending stresses of the crossbeams as compared with two-truss bridges.

在四线铁路三主桁下承式钢桁梁桥中，中桁对横梁的约束近于绝对刚性，纵梁离中桁下弦杆的距离较小，使横梁的面外弯曲应力较二主桁桥梁大得多。

Each bridge is a two girder continuous structure extending over three spans with small haunches at the interior piers.

每一座桥是双主梁的连接梁，延伸三跨，在中间桥墩处具有小的加腋承托。

By use of the system of the equations, large deflection of an elastic cantilever subjected to a concentrated force at its tip is analyzed and some comparison between the system of equations of the geometric central axis and those of the neural axis is made.

结果表明，当载荷较小时，2种理论计算出的弹性大挠度悬臂梁的变形曲线差别很小；而当载荷较大时，2种理论计算出的弹性大挠度悬臂梁的变形曲线存在比较明显的差异。

Based on maximum entropy two-stage optimization design theory, maximum entropy two-stage optimization design system including truss, beam, frame structures is founded in this thesis.

本文从两相优化的理论出发，研究了基于最大熵准则的桁架、梁和框架结构最小材耗问题，系统地建立了包括桁架、梁、框架结构在内的各主要土木建筑基于最大熵的结构两相优化设计理论构架体系。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。