大桁

根据连续介质力学基本理论，针对大跨度钢桁梁柔性拱桥在变形、失稳破坏期间产生的材料和几何非线性特性，用通用软件ANSYS建立桥梁的空间模型。

According to the basic theory of continuum mechanics and considering the nonlinear characteristics of material and geometric during its deformation and instability for long-span flexible arch bridge with steel truss beam , the spatial model of the bridge was established by a general-purpose software ANSYS .

大新站钢桁梁人行天桥过渡施工方案

Transitional construction scheme for steel truss girder footbridge at Daxin station

大跨度钢桁架桥非线性动力特性研究。

The nonlinear dynamic performance of long-span steel truss bridge is researched .

大跨度钢桁梁斜拉桥架设技术与经济分析

Techno-economic analysis of erection of large-span cable-stayed steel truss bridges

大跨度钢桁架桥抗震加固研究。

The seismic reinforcement methods of Long-span steel truss bridge are researched .

大跨径板桁结合主梁斜拉桥几何非线性分析

Geometric nonlinear analysis of long span cable-stayed bridges with a plate-truss composite beam

大跨钢桁加劲梁气动弹性模型的设计方法

Long-span stiffening steel truss girder aeroelastic model design method

台风对大跨度钢桁拱桥抗风性能的影响

Effect of Strong Typhoon on Wind-induced Performance of Long-Span Steel Truss Arched Bridge

大跨度钢桁架桥的施工与实践

Construction and Operation for Large Span Steel Truss Bridge

大跨索桁桥静力优化研究

Static Optimum Study of Long Span Cable-Truss Bridges

它开辟了大跨度钢桁斜拉桥跨中合龙的先河，为以后类似桥梁的合龙提供了宝贵的成功经验。

This victory provides valuable experience for the closing of similar bridges in the future .

海港大跨度拱桁式钢引桥的设计

Design of Large-Span Arch Truss Steel Bridge

大跨度拱桁式钢引桥是外海开敞式深水码头栈桥常用的上部结构型式之一。

Large-span arch truss steel bridge is a common superstructure of trestle bridge on open sea .

近年来，整体节点在大跨度钢桁梁桥中逐渐被采用。

In the last few years , monolithic joint has been gradually adopted in the long span steel truss bridge .

桥梁横隔梁受力性能分析及计算方法的探讨大跨钢桁拱轨道横梁半刚性连接节点疲劳性能试验研究

Fatigue test on the semi-rigid connections between railway floor beam and primary truss of long span steel truss arch bridges

论文首先简要介绍了大跨度钢桁拱桥在国内外的发展情况、结构形式和特点。

In this thesis , the development , structural styles and characteristics of long-span continuous steel truss arch bridges are summarized .

本文是针对大跨径板桁结合斜拉桥的空间几何非线性静力分析及结构的动力分析两个方面而展开研究工作的。

This paper is concentrated on the space geometric non-linear static analysis and vibration analysis of the long span plate-truss composite cable-stayed bridges .

整体节点是近年来在大跨度钢桁桥中采用的一种新型结构型式。

Integral joint is a new-type structure that has been already adopted in the long span steel truss bridge in the last few years .

本文提出了一种分析列车、大跨度钢桁梁斜拉桥系统空间振动的方法。

In the paper , a method for spatial vibration analysis of the system of train and long span steel trussed cable-stayed bridge is presented .

针对大跨度板桁斜拉桥无砟轨道静动力特性的研究，国内外较为少见。

However , studies on static and dynamic properties of the long-span plate-truss cable-stayed bridge with ballastless track , are rare both at home and abroad .

大跨度板桁斜拉桥和无砟轨道由于其自身结构特性，在列车荷载作用情况下两者之间可能存在静力匹配和动力适应的问题。

Static matching and dynamic adaption problems occur under train loads between the long-span plate-truss cable-stayed bridge and the ballastless track , due to their structural characteristics .

然而大跨度钢桁拱桥刚性长吊杆因其自身的特点对自然风作用较为敏感，容易发生风致振动破坏，故对其采取合理的减振措施对桥梁的运营安全有着重要意义。

However , the characteristics of the slender suspender of long span steel truss bridge is more sensitive to the wind action , which is prone to occur wind-induced vibration .

论文首先介绍了大跨度钢桁梁桥的发展历史和现状、设计理论及技术进展。

Firstly , the development of the history and current status , the design theory , and the technical progress of long-span steel truss cable-stayed bridge are summarized in the thesis .

随着整体节点正逐渐在大跨度钢桁架桥设计中被采用，在交通荷载作用下焊接局部的疲劳问题日益引起人们的重视。

Along with the wider use of monolithic joint in the design of long span steel truss bridges , the fatigue of weld details under traffic loads gradually attracted more attention of the architects .

大跨度板桁斜拉桥无砟轨道设计时应充分考虑桥梁结构的影响，以保证轨道结构与桥梁结构的匹配性。

The design of long-span plate-truss cable-stayed bridge with ballastless track should take full account of the impact of the bridge structure , in order to ensure the matching of track structure and bridge structure .

本文从Pellegrino提出的奇异值分解法出发，利用自行开发的程序，求解了几种典型的大跨度空腹索桁结构的自应力模态。

By using the singular-value-decomposition method , a little program has been developed to get the self-equilibrium stress mode of several typical cable truss structures .

大跨钢管混凝土桁式拱桥抗震性能分析

Earthquake Resistant Behavior Analysis for Large-Span Concrete Filled Steel-Tube Braced Arch Bridge

大跨度空间索桁张力结构的模型试验研究

An experimental study on large-span spatial cable-truss tensile structure model

大跨度铁路钢桁桥地震响应分析

Seismic Response Analysis of Long Span Railway Steel Truss Bridge

大跨度连续钢桁梁拱桥空间计算分析

Spatial Analysis of Long-Span Continuous Steel Truss Beam Arch Bridges