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In this thesis, certain problems relating to nonlinear seismic response of long-span bridges are discussed.

本文针对大跨度桥梁的地震反应分析问题，就以下几方面进行了研究

Based on the fuzzy theory, a fuzzy safety evaluation model of the long-span suspended bridges is put forward.

基于模糊理论，建立了用于大跨度悬索桥的模糊安全性评价模型。

The results show that the evaluation results of long-span suspended bridges by fuzzy theory is objective and feasible.

结果表明：基于模糊理论的大跨度悬索桥安全性评价是一种客观、可行的评价方法。

With high-speed development of traffic cause,the long-span bridges on highway and railway are growing rapidly.

随着交通事业的高速发展，公路上的大跨径桥梁迅速增加。

According to the calculation, the safety assessment can be done rationally for long-span bridges.

通过计算分析，可以对大跨度桥梁的安全性作出合理的评估。

The cable-stayed cradle provides a new level of flexibility in the design of long-span bridges.

斜拉桥摇篮提供了一个新的水平，灵活的设计，大跨度桥梁。

As the important part of modern construction technology, construction control is playing a more and more important role in the successful erection of long-span bridges.

施工控制是施工技术的重要组成部分，在大跨径桥梁的施工中已成为不可缺少的关键环节。

In Chapter 4 a model updating procedure is proposed for long-span cable supported bridges.

但现有的模型修正方法无法考虑结构质量变化对刚度变化的影响。

In order to ensure the safety and durability of long-span bridges, monitoring must be conducted in construction and operation period.

为保证大跨度桥梁结构的安全性和耐久性，需要在施工及运营阶段对桥梁进行监测。

It is very important for the safety analysis of long-span bridges subjected to earthquakes and locally behaving non-linearily.

这对于大跨度桥梁在地震作用下局部进入非线性区时的安全性分析是特别有用的。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新