查询词典 span bridge

A "Living/Learning Bridge" reestablishes a strong Walnut Street axis and connects to Rittenhouse Square Center City; A "Sports/Recreation Bridge" proposes a dramatic new pedestrian-only cable-stay span and incorporates student life programs like a series of sports and recreation parks along the river adjacent to the existing stadium; A "Health Sciences/Cultural Bridge" at South Street and future "Research Bridge" accommodate health care and research endeavors that are critical for both the university's and city's growth.

宾大链接区既是宾大下半世纪的发展蓝图，又是将校区与斯库基尔河以及费城中心城区连接起来的桥梁。

In association with the improvement design practices on winding equipment for main cable of large span cable bridges liking Shantou Gulf Bridge, Xiling Yangtse River Bridge and Xiamen Haicang Bridge, some contents are systematically described on the basis of electric control system of ZLC series winding machine for main cable, including mechanism composition of the winding machine for main cable, mathematical relationship between rotation speed of winding system and travel speed of the winding machine, work principle of accurately matching control on the two speeds with PLC and frequency converter, wireless measurement and monitor of winding system tension, automatic override control on cable clamp as well as practical effect of a real bridge application.

结合对汕头海湾大桥、西陵长江大桥和厦门海沧大桥等大跨度悬索桥的主缆缠丝施工设备－主缆缠丝机的改进设计实践，以ZLC系列主缆缠丝机的电气控制系统为基础，系统介绍了主缆缠丝机的机构组成、缠丝系统旋转速度与缠丝机行走速度之间的数学关系、采用PLC及变频器对两速度进行精确匹配控制的工作原理、缠丝系统张力的无线测量、监控、索夹的自动跨越控制以及实桥的应用效果。

For the steel truss girder with abroad \\\"bridge crane bar assembled Law,\\\" the level of technology and equipment as a result of the limited duration of its long, far from being able to meet China\\\s bridge construction project as requested in the analysis of large-span suspension bridge mountain girder erection difficulties under the premise that after the election raised more than Aizhai Bridge \\\"self-cross-cable crane swing shift\\\" program to set up the main truss, which is mountainous suspension bridge girder erecting another major innovation.

对于钢桁梁，用国外的"桥面吊机杆件拼装法"，由于工艺和设备水平所限其工期长，远不能满足中国桥梁建设工期的要求，在分析山区大跨悬索桥主梁架设困难的前提下，经过多方案比选提出矮寨大桥"自行式跨缆吊机荡移"架设主桁方案，这是山区悬索桥主梁架设的又一个重大的创新。

In general, large-span cable-stayed and suspension bridges require bridge towers with a length of more than tens or hundreds of meters. Due to the unproportionate slenderness ratio, the bridge tower becomes vulnerable to air and thus easy to be distorted or to vibrate, which will affect the stability of the entire bridge structure. Therefore, it is of great significance to carry out an in-depth research on the force feature of the bridge tower in a flow field.

大跨度的斜拉与悬索桥，往往都需要建造数十米甚至上百米的桥塔，过大的长细比，使得桥塔在流场中受到气体的作用容易发生变形或振动，从而影响了整个桥梁结构的稳定性，因此，深入细致地研究桥塔在流场中的受力特性非常有必要。

Construction Control of Extradosed Cable-stayed Bridge;2. The main bridge of the Kaifeng Yellow River 2nd bridge of Daguang freeway is 7-tower and 8-span prestressed concrete extradosed cable-stayed bridge .

以大广线开封黄河二桥主桥——7塔8跨预应力混凝土矮塔斜拉桥为研究对象，借助MIDAS/Civil有限元程序建立了该桥梁空间有限元计算模型，采用子空间迭代法计算了桥梁的动力特性。

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。

For the steel truss girder with abroad \\\"bridge crane bar assembled Law,\\\" the level of technology and equipment as a result of the limited duration of its long, far from being able to meet China\\\s bridge construction project as requested in the analysis of large-span suspension bridge mountain girder erection difficulties under the premise that after the election raised more than Aizhai Bridge \\\"self-cross-cable crane swing shift\\\" program to set up the main truss, which is mountainous suspension bridge girder erecting another major innovation.

对于钢桁梁，用国外的&桥面吊机杆件拼装法&，由于工艺和设备水平所限其工期长，远不能满足中国桥梁建设工期的要求，在分析山区大跨悬索桥主梁架设困难的前提下，经过多方案比选提出矮寨大桥&自行式跨缆吊机荡移&架设主桁方案，这是山区悬索桥主梁架设的又一个重大的创新。

Xianju Bridge cents at Nim Xianju rural village, 20, from the county seat, is the largest wooden Taishun span arch bridge, but also Danyan arcade-style wooden bridge, around a green mountains and blue waters, just next to the bridge Xianju a new cement A bridge connected the county seat of the district roads, although a little Sha Fengjing, but to enjoy together, not really a new hi Yan Jiu.

仙居桥美分，至稔仙居县农村， 20岁，来自县城，是全球最大的木制泰顺跨径拱桥，而且还Danyan街机风格的木制桥梁，围绕着绿色群山和蓝色大海，旁边的一个新的桥梁仙居水泥桥连接县城区道路，虽然有点沙枫泾，但享受在一起，不是一个真正的新的高科技闫久。

In order to ensure the construction process safe and the bridge structure would reach its ideal state, lots of questions in its whole construction control and swivel ereetion construction control are discussed and studied.Firstly, based on the experiences about the cable-stayed bridge's construction control, do emulational anlysis to Sui Fenhe cable-stayed bridge by using the bridge analyzing program of BSAS and Dbridge, analyze the parameters' sensitivity, study the temperature effects, discern the relevant parameter's errors about construction control and optimize its construction state.Secondly, as an example of Sui Fenhe cable-stayed bridge's swivel erection construction control, present the design and construction techniques of simple point supporting and even articulation and level swivel erection for long-span cable-stayed bridge, study its load-bearing system, balance system, power system and adjustment system in detail, check its static stability on the state of swivel erection construction and monitor the whole swivel erection construction.

首先，在斜拉桥施工控制经验的基础上，用桥梁结构分析程序BSAS和Dbridge对绥芬河斜拉桥进行了详细的施工仿真分析，参数敏感性分析，温度效应分析，施工控制影响参数误差分析和结构施工状态的最优化控制；其次，以绥芬河斜拉桥转体施工控制为例，介绍了大跨度斜拉桥单点平铰水平转体设计与施工技术，详细研究斜拉桥单点平铰水平转体支承系统、平衡系统、动力系统和调整系统，并对本桥结构转体施工做静力稳定性验算及转体过程的监控。

It is very easy to understand and grasp the calculation model's parameters estimation of a large span box-beam bridge with the least square method, and the theory's effect on the cantilever construction control of the bridge with a main span below 100m is obvious and well.

对主跨≤100m的大跨连续箱梁桥悬臂施工控制，采用最小二乘法进行参数估计，较容易理解和掌握，而且施工控制效果良好，具有一定借鉴意义。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。