查询词典 trellis girder

But publications about technical development on monitoring on-line the health of anchor screw s in the cast steel pedestal for prestressed concrete track girder can not be found.

跨座式单轨交通系统是日本和欧美等发达国家在20世纪60年代提出的一种先导城市交通形式，但在PC轨道梁铸钢支座锚固螺杆健康在线监测方面的技术开发却至今未见大量报道。

The hanging basket s are the main equipments in the cantilever casting construction of large-scale prestressed concrete continuous rigid bridge and continuous girder bridge.

挂篮是目前大跨径预应力混凝土连续刚构桥和连续梁桥在悬臂浇注施工时主要采用的施工设备。

The two-dimensional transient finite element analysis and thermal responsecalculation were carried out for prestressed concrete box girder with irregular crosssection. Various boundary conditions were discussed in detail.

在有限单元分析中，首次推导出混合边界单元的计算公式，从而将第二类边界条件和第三类边界条件统一起来，以第三类边界条件的形式施加到单元边界上。

Stockwell would later learn that the bullet had been shot into the air, ricocheting off a girder and striking two students.

斯托克韦尔后将得知：子弹打空，击中一根柱子后弹飞了，再击中两个学生。

In high-rise building, transfer girder co-works with the above structure, which will form a drag bar arc system after crack appears on the bottom.

在高层建筑中转换梁和上部结构存在着共同工作的特性，当转换梁梁底混凝土允许开裂时，转换梁中会形成较为明显的拉杆拱体系。

With the increasing of long span prestressed concrete bridge adopting cantilever erection construction method, more and more attention are paid to the correlative geometry control theory and practice of long span continuous box girder.

随着采用悬臂拼装施工的大跨度预应力混凝土梁桥的不断增多，与其相关的大跨度连续箱梁悬臂拼装施工线形控制理论和实践日益受到关注。

During the period of construction by the cantilever erection construction method, bridge experiences not only the process of generating girder in the stage of T rigid frame, but also the process of system transformation, so bridge has experienced a great complex stress process, in order to ensure the security of bridge during the whole stage of construction, the stress control and geometry control must be made during the stage of construction of bridge.

近些年来，我国随着经济的快速增长，出现了建造大跨度桥梁的高潮，预应力混凝土技术的迅速推广应用以及建造预应力混凝土连续梁桥的各种先进施工方法应运而生，加快了桥梁的施工进度，使得预应力混凝土连续梁桥的跨越能力不断增大，悬臂拼装施工方法就是在这种背景下产生并发展起来的。

A new design and construction method different from the traditional way was used in Jinma Bridge. When cantilever the main girder of the cable-stayed structure, the longitudinal pre-stressed reinforcements are not tensioned at once.

金马大桥在斜拉桥设计和施工中采用一种与传统斜拉桥设计和施工不同的新方法，即悬臂浇筑斜拉桥主梁时采用无纵向预应力筋的做法。

In 1970, steel box-girder bridges in Milford Haven, Wales, and in Melbourne, Australia, failed spontaneously while under construction.

1970年，威尔士米尔福德港和澳大利亚墨尔本的箱形钢梁大桥在建筑过程中自然坍塌。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。