内力

On the basis of analyzing effect of prestressed tendon layout on internal force and thrust at springer ,the principle of prestressed tendon layout for three-span prestressed concrete deck arch bridge is illustrated.

在分析预应力布置位置对三跨上承式拱桥内力和拱脚推力影响的基础上，阐明了该类桥型预应力筋的布置原则。

Combined with that the influence of the prestressed tendon layout on mechanics characteristic of three-span prestressed concrete deck arch bridge is taken into account in these methods, and demand of internal force and displacement in design is satisfied by using upward and downward eccentric layout of prestressed tendon.

这些设计法针对该类桥型的特点，利用在拱顶粱中分别布置一定数量的上下偏心的预应力筋来优化结构的内力和满足各部分的位移限制要求。

On the basis of analyzing effect of prestressed tendon layout on internal force and thrust at springer, the principle of prestressed iendon layout for three-span prestressed concrete deck arch bridge is illustrated.

摘要在分析预应力布置位置对三跨上承式拱桥内力和拱脚推力影响的基础上，阐明了该类桥型预应力筋的布置原则。

A general program using APDL(ANSYS parametric design language),which is applicable to arbitrary lining sections of the three-centered circular arch with different surrounding rock pressure distributions,was developed for the calc.

利用ANSYS的参数化高级设计语言，编制了适合任意三心圆拱衬砌断面和不同围岩压力分布形式的隧道衬砌内力和偏心距的通用计算程序。

This paper analyses the real strain state of the thick-walled frame,and discusses its rational design method.

本文对现行厚壁框架内力计算和配筋方法所存在的问题进行了研究，并探讨了合理的设计方法。

With result of the pull-out test of soil nail,it analyse calculation mode of internal force of soil nail in different situation and provide theformulas.

2研究了土钉加固机理，通过土钉抗拔试验，给出了不同情况的土钉内力计算模式，并给出相应的计算公式。

The structure internal forces were analyzed under different kinds of tension using a finite element computation model for the whole bridge with Midas software,and rational tension values and subsequence are finally calculated.

结合系杆拱桥的设计方案，对吊杆张拉力的控制进行分析计算，并利用Midas程序建立全桥的有限元分析模型，分析比较几种张拉情况下的结构内力变化情况，最终得出比较合理的张拉力取值及顺序，分析结果可为同类桥梁的设计与施工提供一定的参考。

The design includes determination of size and details of twin post piers and footing, internal force calculation, bending rebar of pier capping beam, shear rebar and stirrup, compression bar for piers and footings. Check of bearing capacity of piers and piles, crack opening, lateral displacement of pier, and eccentricity, were also conducted.

设计主要内容：双柱式桥墩及基础细部尺寸拟定；内力计算，墩盖梁抗弯钢筋、抗剪钢筋和箍筋的配置及墩身和桩基抗压钢筋的配置；墩与桩承载能力检算、裂缝宽度检算、墩顶水平位移检算，偏心距检算。

From combining internal force calculation with design detailing, some calculation simplifications and hypotheses are first presented, then a calculation method and corresponding formulas of internal forces for elliptical spiral stairs are derived.

采取计算与构造相结合的方法，进行必要的计算简化和假定，在椭圆形旋转楼梯的内力计算时，把固定坐标变换成动点坐标，推导相应的计算公式。

According to the characteristics of large span structure design, such as big diffrence of collumn force, large span and spacious roof, week linkness of different parts and large displacement of bearing, spacil structure methods such as different types of concrete pile with different length, suitable joint and bearing are adopted to achieve the economical and safe demand

提要］针对西北农林科技大学体育馆类大跨度空旷建筑结构的设计特点，如柱底内力差别很大、上部结构空旷、各部分之间的连接较弱、屋盖结构跨度大、支座位移大等，采取差异化的桩型和桩长，适当分缝，合理配置支座等有效的结构措施，达到既安全可靠、又经济性好的目的。

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％。