查询词典 tubular girder

A perspex glass model of a two-span continuous curved box girder was made.

研究表明，曲线箱梁内侧正应力比外侧的大。

You can find out it is the major temporary work, such as formwork, rebar jig, equipment etc. during the FPLM construction, in which the cost of the inner mould and outer form of box girder, the steel form of pier and pierhead of substructure, the rebar jig as well as the launching equipments are quite high. The quantity of those equipments was always depended on experience in the pass time. Therefore the more of the form quantity is used the higher of direct costs would be spent. On the other hand it would be reduced the capacity of production if the equipments are insufficient.

在全跨预铸工法中所使用的生产设备仔细观察可发现，预铸工法中假设工程(如模版、钢筋加工架以及施工机具等)所占比例相当高，其中有箱型梁的内模与外模床、下构的柱钢模、帽梁钢模、钢筋加工架、吊装机具等所占的成本相当高，以往设备数量多寡均以经验来取决，因此假如模版数量过多直接成本随之提升，反观模版资源数量不足时又会造成生产力降低情况发生。

In this paper, the program for earthquake response analysis of Girder Bridge is established, and the calculation and analysis of the bridges on plane curve are with that program.

本文用自编的梁桥地震响应分析程序，对此类桥梁进行了计算和分析，总结了此类桥梁的地震响应特点，提出了抗震设计的一些建议。

The stress distribution of section in wide and thin box girder subjected to simultaneous bending and axial forces doesn't conform to the assumption of the plane section, and the transverse stress distribution is uneven; with the increasing of bridges' span and the lowering of security repertory, to consider the uneven of stress distribution in calculation of design and construction control, and to analyses the shear lag effect in the process of bridges' construction and using are bound to have important engineering value and theorical significances.

在压弯荷载共同作用下，宽而薄箱梁的截面应力分布并不符合平截面假定，沿横向分布不均匀；随桥梁跨度的加大和安全储备的降低，在设计计算和施工控制计算中考虑这种不均匀性，准确分析其在施工和使用阶段的剪力滞问题具有重要的工程价值和理论意义。

A detailed description is given of the technique for prefabrication and erection of the 35 m small box girder.

箱梁的安装，采用了轨道平车运梁，架桥机吊装。

To reasonably design the girder falling restrainer the nonlinear seismic response of the restrainer was investigated considering the failure process of the bearings .

为了合理设计防止落梁装置，应用考虑支座破坏影响的非线性动力计算方法研究了防止落梁装置的地震响应。

The restrainer should at least afford the weight of the girder.

防止落梁装置应具备承受梁体重量以上的承载能力。

To reasonably design the girder falling restrainer , the nonlinear seismic response of the restrainer was investigated considering the failure process of the bearings.

摘要为了合理设计防止落梁装置，应用考虑支座破坏影响的非线性动力计算方法研究了防止落梁装置的地震响应。

The effects of gap length and stiffness of the restrainer , the ground motion strength, wan shape of ground motion and the collision between the girder and the abutment on the seismic load applied on the restrainer were compared.

分别比较了防止落梁装置的不工作长度、装置的刚度、地震强度、地震波波形、梁端与桥台之间的地震碰撞对装置承受最大地震荷载的影响。

Adopt girder unit and mixed unit to establish finite element model of stack based on the flexible stack. The former stack is simplified into 7 girders and 1 symmetrical space rigid frame of centralized quality.

针对某型机枪的弹性枪架，分别采用梁单元和混合单元建立枪架的有限元模型，前者的枪架被简化成由7个梁、1个集中质量组成的对称的空间刚架结构。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。