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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。

As the economic index of the ordinary long span solid abdomen type portal rigid frame will drop along with the span increasing, a new type of way is presented in this paper, which is fixing up horizontal prestressed cables at the joints between beams and columns.

本文针对普通大跨度实腹式门式刚架随着跨度的增大经济性指标下降的问题，采取另一种方法，在门式刚架的梁柱连接处布置水平预应力拉索。

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。

This paper introduces the method of installing support frame s to decrease the span of the bridge and the bending deflection of the mid-span.

本文重点介绍通过设置支撑架的方法，以减小桥梁跨径与跨中挠度，从而达到加固桥梁的目的。

The computation formulae for the deflection at the mid-span of equal-span continuous beams with 2-5 spans have been given out.

五跨等跨连续梁因支座变位引起的各跨跨中挠度计算公式。

As a result, they might not even start with the sincere ballots needed to find a majority policy.

因此，他们可能甚至没有开始，真诚的选票需要寻找一种多数的政策。

This investigation into the public power supervision in the rural communities in this paper has gone beyond the limitation of most other studies in this field, which focus on the villagers" supervision over the power exercised by village committees only from the perspective of "self-government of villagers. A systematic survey of the system arrangement for public power supervision in rural communities is conducted from the perspective of village administration. It also analyzes the deviances which arise in the operationprocess of public power supervision system in current rural communities and furthermore explores the main reasons behind the deviances.

本文突破了以往理论界在探讨村社区公共权力监督时，仅从村民自治的角度出发，着重研究村民对村委会权力运作监督的局限，从村治的角度对现阶段的村社区公共权力监督制度安排进行了系统梳理，在此基础上分析了目前村社区公共权力监督制度在实施过程中所产生的偏离现象，并进一步地探讨了这些偏离现象产生的主要原因，最后，就如何减少监督制度运作的偏离提出了一系列思考。