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With the development of science and the improvement of the suspend capacity, there has been a noticeable trend in the enlargement of span range and the standardization of medium and small-span bridge design. But the test researches and the whole loading process analysis on the simply supported continuous P.C.

目前简支连续预应力混凝土多箱式桥梁的应用日趋广泛，随着科技的进步及吊装能力的提高，跨径范围的增大以及在中小跨径领域内设计标准化的趋势十分明显。

As a compress-bend structure, with increasing of the span, length slender ratio and carrying load of arch increase, lateral rigidity and width span ratio of arch ring minish relatively. During construction and service stages, lateral stability becomes more important and a control factor of arch bridge design.

拱肋作为压弯结构，随着跨径的增大，杆件的长细比及所承受的荷载也随之增大，拱圈横向刚度、宽跨比相对减小，在施工阶段及使用阶段横向稳定问题特别突出，常常成为拱桥设计的控制因素。

As a structure that is compressed and bended, with increasing of the span, length slender ratio and carrying load of arch increase, lateral rigidity and width span ratio of arch ring minish relatively. During constructing and bring to bear, lateral stability becomes especially severity and a control factor of arch bridge design.

拱作为压弯结构，随着跨径的增大，杆件的长细比及所承受的荷载也随之增大，拱圈横向刚度、宽跨比相对减小，在施工阶段及使用阶段横向稳定问题特别突出，常常成为拱桥设计的控制因素。

The article is based on the 6m-span girder bridge in the Country Road 312, using ANSYS to analyze the model of no bearing and simple-supported plate girder bridge, which with width-span ratio of 2 and continuous deck.

以国道312线跨径6m的板梁为例，用ANSYS对宽跨比为2且桥面连续的无支座简支板梁桥进行模态分析。

To reduce the vibration from blasting and ensure the safety of flood-control wall,the controlled blasting program of non-electric defonation circuit,span-by-span collapse and multilayer delay was adopted.

为减少拆除建筑结构倒塌着地振动，确保近侧防汛墙的安全，采用了非电复式起爆网路，逐跨倒塌或多层爆口延期的控制爆破方案。

The paper discussed proportion between side span and middle span in three spans prestressed continuous box beam bridge.

本文对三跨预应力连续箱梁桥的边跨与中跨比例问题进行了初步的探讨。

The one that need to emphasize is, advanced science and technology brings the extension of people's life-span, if beneficiary that the life-span lengthens' thinking stops but can only be looked after, Then even his unwilling death society will execute the bill of euthanasia , Old people's existence can't deprive children's existence .

需要强调的是，高技术带来人寿命的延长，倘若寿命延长之受益人思维停顿而只能受照顾，那么即使他不愿死亡社会也将强制执行安乐死的法案，老年人的生存不能剥夺儿童的生存。

Taizhou Bridge on Changjiang river is an important ground anchor suspension bridge with 2×1080m span in Jiangsu province. It is the largest three-tower two-span bridge in the world.

泰州长江大桥是江苏省内跨越长江的又一座重要桥梁，采用三塔两跨地锚式悬索结构，跨径2×1080 m，为世界上同类桥梁之最。

In this dissertation, construction methods of long span arch bridges are reviewed firstly, and the lifting process of Shengmi Bridge's arch ribs is illuminated in detail. In succession, the status of study of wind-resistance in long span bridge construction is presented, and then the necessity of work of this dissertation is brought forward.

本文首先回顾了大跨度拱桥的施工方法，详细说明了生米大桥主拱肋吊装的施工过程，接着介绍了目前大跨度桥梁施工期间抗风研究的现状，提出了进行本文工作的必要性。

Thin-wall box structures are applied widely in long-span or mid-span bridges and it is difficult to calculated box beams.

大中跨预应力混凝土桥梁工程中广泛采用的箱形截面，其薄壁效应成为计算中的难点。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。