钢梁

This paper presents the construction techniques for lifting and installation of the steel girders for railway trestle bridge by floating crane,connection of the girder to girder in the temporary aid of pinning in the axle holes in the girders and also installation of the high accuracy bridge bearings.

介绍铁路栈桥利用浮吊吊装钢梁安装技术、梁梁连接过渡配合轴孔穿轴技术以及高精度支座安装技术。

This paper presents the construction techniques for lifting and installation of the steel girder s for railway trestle bridge by floating crane,connection of the girder to girder in the temporary aid of pinning in the axle holes in the girders and also installation of the high accuracy bridge bearings.

介绍铁路栈桥利用浮吊吊装钢梁安装技术、梁梁连接过渡配合轴孔穿轴技术以及高精度支座安装技术。

A great deal of calculation was carried to verify the method and program.The stress in the top of steel beam increases remarkably, which may threaten the local stability in the web.

本文的研究分析表明：随着时间的增长，在组合梁截面上，钢梁顶部附近应力的增长十分突出，因此，对于在长期荷载作用下的组合梁，应特别注意工字钢腹板处局部稳定性的设计。

On the basis of the former researches and taking into account the practice of our country, this paper take the low period repeat loading experiment for three rigid conjunction node of steel beam and concrete wall, researching their load-bearing capacity and earthquake resistance performance under the low period repeat loading action, the main content concentrate on the following aspects:(1) Analyzing the three joint's damage shape、hysteretic curve、change of rigidity、yielding load、limit load、damage load、durability、energy dissipation capacity、the strain of the key position and the moment transferring mechanism.(2) Comparing the joint's load-bearing capacity and earthquake resistance performance among the joints with different stud bolt diameter and different connection plate thickness, researching some factor's influence on the work performance of the joint such as the high and strong stud bolt specification、connection plate thickness .

本文在前人研究的基础上，结合我国的实际情况，对3个钢梁-混凝土墙刚接节点试件进行了低周反复荷载试验，对其在低周反复荷载作用下的承载力和抗震性能进行了研究，内容主要集中在以下几个方面：(1)对3个节点试件在低周反复荷载作用下的破坏形态、滞回曲线特性、刚度变化、屈服荷载、极限荷载、破坏荷载、延性性能、耗能能力、关键部位的应变分布情况及节点核心区的受力情况进行了试验研究和理论分析；(2)比较了不同螺栓规格和不同连接板厚度的节点试件的承载力和抗震性能，研究了高强螺栓规格和连接板厚度这2个因素对节点工作性能的影响；(3)介绍了光纤光栅传感技术在土木工程领域中的应用研究现状及其基本原理；并通过对比试验，探讨了光纤光栅传感器用于土木工程检测的可行性及实现途径。

Based on the mechanics peculiarity of preflexed beam, a whole process analytical method of time dependent factors include concrete creep, shrinkage and steel relaxation based on strain theory is proposed in this paper.

本文根据预弯组合梁的受力特点，建立了以应变理论为基础的综合考虑混凝土收缩、变以及钢梁的松弛等时效因素的全过程时效分析方法。

The joint of Concrete-filled Square Steel Tubular Column and H-shaped steel beam is the key point in the construction framework as the connecting point and the power transmission link.

方钢管混凝土柱与H钢梁的连接节点是框架结构体系中的一个关键部位，起到连接和传力的作用。

Furthermore,the influence of parameters such as the horizontal power spectrum density, basic wind pressure,span and weight of the roof,damping ratio,terrain categories and support restraints,which are usually critical to the wind vibration factor,are also discussed.

本文基于随机振动理论利用有限元程序ANSYS对大跨度实腹式钢梁在频域内进行了风振分析，讨论了高阶振型、脉动风速谱、基本风压、屋盖重量、地貌种别、阻尼比和支座约束等相关参数对屋盖结构风振响应和风振系数的影响。

Combined with practical work,from technological process,erection of consolidation platform and incremental launching platform ,fabrication and installation of slide rail,field assembly of steel box beam and other aspects incremental launching construction technology of steel box beam is introduced in order to provide references for similar works.

结合工程概况，从顶推施工工艺流程、钢箱梁拼装平台及顶推平台搭设、滑道制作安装、钢箱梁现场拼装、钢梁顶推及落梁等方面介绍了主桥钢箱梁的顶推施工技术，以供类似工程参考借鉴。

Steel-concrete composite beam is a kind of flexural member composed by concrete slab and steel beam via shear connectors.

钢-混凝土组合梁是指钢梁和混凝土板通过剪力连接件连接形成整体共同工作的受弯构件。

After the position adjustment, the pistol electric drill is used to fix the self-tapping screw to the steel beam.

调 整位置后用手枪电钻将自钻自攻螺丝钻入固定在钢梁上。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。