SWRS82B wire was the raw material of hot-dip strand for long-span bridges.
SWRS82B热轧盘条是制造大跨度桥梁缆索用镀锌钢丝的原材料。
Secondly, the mechanics and causes of deflection of long-span bridges are analyzed in this paper.
本文分析了大跨径混凝土连续刚构桥长期下挠产生的机理和原因。
Firstly, this thesis introduces briefly the construction control technologies and systems for long-span Bridges.
本文首先对大跨桥梁施工控制的技术方法和技术体系等进行了简单的阐述。
Identification of flutter derivatives is an attractive topic in the field of wind-resistance study of long-span Bridges.
气动导数识别是大跨度桥梁抗风研究中备受关注的一个问题。
In this paper, the achievements of study on wind-induced vibration, especially on flutter and buffeting, of long-span Bridges.
在简要回顾国内外关于桥梁两种主要风振-颤振及抖振控制研究的基础上，对大跨径桥梁的风振提出了控制措施。
On the basis of error analysis of finite element modeling, the multi-level model updating is put forward for long-span Bridges.
在有限元模型误差来源分析的基础上，提出了大跨桥梁结构模型误差的分层次修正方法。
Simulation of stochastic wind velocity field is prerequisite to flutter or buffeting analysis of long-span bridges in time-domain.
随机脉动风场的模拟是大跨度桥梁颤抖振时域分析的前提。
Because of their long span ability and light beautiful structures, suspension Bridges are competitive bridge types of long-span Bridges.
因其跨越能力大、结构轻型美观，所以是特大跨度桥梁中非常有竞争力的桥型。
Side wind effects on driving safety were investigated for long-span Bridges in strong wind based on comprehensive management of freeway.
针对高速公路综合管理需求，研究强风天气的大跨度桥梁行车安全性问题。
Flutter derivatives play very important roles for determining the flutter critical wind speed and buffeting responses of long-span Bridges.
气动导数是大跨桥梁结构颤振和抖振分析中确定颤振临界风速和抖振响应的重要依据。
Having merits of large spanning ability, light weight and aesthetical structure, suspension Bridges are the first choice for ultra-long-span Bridges.
由于具有跨越能力大、结构轻型美观的优点，悬索桥已成为特大跨度桥梁的首选桥型。
Authors presented a finite element (FE) model and frequency analysis method for analyzing 3-d full-mode flutter of long-span Bridges using ANSYS software.
提出了一种在ANSYS中直接分析大跨桥梁三维全模态颤振的有限元模型和频域方法。
On the basis of this theory, this thesis focuses on the study of the application of the grey system theory to the construction control of long-span Bridges.
本文首先对大跨径桥梁施工控制技术的发展趋势、理论方法和工程实践等进行了简单的阐述，接下来研究了灰色系统理论在桥梁施工控制中的应用。
In addition, the effects of geometric nonlinearity and the static wind load nonlinearity of long-span Bridges under strong wind load shouldn't be neglected.
另外，在强静风荷载作用下，大跨度桥梁的几何非线性、静风荷载非线性的影响均不容忽视。
In this paper, based on earthquake-resistant design of long-span Bridges, the patterns of random earthquake ground motion and the methods of seismic response analy...
本文结合大跨度桥梁抗震设计，系统地介绍了随机地震动场的模型以及随机地震动场多点激励下大跨度桥梁地震反应分析的方法。
Wind Loads nonlinear static instability theory, derived for calculating the nonlinear stiffness matrix, and the development of long-span Bridges in the nonlinear static.
风荷载作用下的非线性静力失稳理论，推导了适合计算的非线性刚度矩阵，并开发了大跨度桥梁的非线性静力。
A method of seismic response analysis for long-span Bridges considering the synthetic effects of wave-traveling, topography and multi-support excitations is established.
提出一种综合考虑行波和地形影响的大跨结构在多点输入下的地震响应分析方法。
Eccentric loadings will induce large torsional deformations for the girders of long-span Bridges, deteriorating the safety and comfort of moving vehicles of rail transit.
偏载作用下大跨度桥梁主梁易产生较大的扭转变形，这对轨道交通车辆运行的安全性和舒适性是不利的。
Air void is one of the key indexes in the quality control of asphalt pavements. It is more strictly restricted to use epoxy asphalt concrete on deck pavement of long-span Bridges.
空隙率是沥青路面施工质量控制中的关键技术指标之一，由于环氧沥青混凝土大多用在大跨径钢桥面铺装中，因此，对空隙率的要求更为严格。
In this paper, the deformation control in the construction control of long-span Bridges using the segmental cantilever method is studied, with regards to some engineering examples.
以一座实桥为工程背景，对采用分节段悬臂浇筑施工的大跨度桥梁结构施工控制过程中的变形控制进行了研究，提出了变形控制过程和实现的方法。
In this paper, based on earthquake-resistant design of long-span Bridges, the patterns of random earthquake ground motion and the methods of seismic response analysis for long-span...
本文结合大跨度桥梁抗震设计，系统地介绍了随机地震动场的模型以及随机地震动场多点激励下大跨度桥梁地震反应分析的方法。
As widespread construction of long-span Bridges and extensive application of efficient construction materials, the problems of bridge structure vibration have become increasingly prominent.
大跨度桥梁的大量兴建和高效能建桥材料的广泛应用，桥梁结构的振动问题日趋突出。
Based on the pseudo-excitation method and the finite element method, a new random vibration method is developed for predicting buffeting internal forces of long-span Bridges in the frequency domain.
基于虚拟激励法和有限元法，在频域建立了一种新的桥梁抖振内力响应分析的随机振动方法。
In northern region, especially for long span Bridges, its benefits could be obvious.
在北方地区河道中修建大跨度桥梁时，采用此方案，可能产生有利的效果。
The preflex composite girder is a new girder type that has been successfully used in small span bridges in China in the recent years, and is currently starting to be used in long span bridges.
预弯组合梁是近年在国内采用的新梁型，已经在许多小跨度桥上成功应用，在大跨度桥上也开始付诸实践。
The results show that long-span continuous rigid frame bridges should be modeled as precisely as possible to reflect their actual dynamic characteristics.
计算结果表明，大跨度桥梁结构的动力分析必须建立详尽的分析模型，以反映结构的实际动力特性。
Authors presented main cable safety factors assessment of long-span suspension Bridges based on inverse reliability method.
提出了一种基于逆可靠度法的大跨悬索桥主缆安全系数评估方法。
The direct flutter analysis only requires a single parameter searching process and is efficient and fits to the flutter problems of actual long span Bridges.
由于只需进行单参数的搜索过程且计算效率较高，用该方法分析实际大跨度桥梁颤振问题是合适的。
Flutter stability is one of major factors governing the design of long span suspension Bridges.
颤振稳定性已成为影响和控制大跨径悬索桥设计的一个重要问题。
Flutter stability is one of major factors governing the design of long span suspension Bridges.
颤振稳定性已成为影响和控制大跨径悬索桥设计的一个重要问题。
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