查询词典 trellis girder

Basing on the statistic datum existed of bridge deck pavements, analyze the main failure modes and its main causes to damage on different styles of bridge, at the same time, through the big calculation software ,establish the space models to simulate the course of mechanics of bridge deck pavements, analyze the main factors which affect the bridge deck pavement"s mechanics and the relations between them; according to the atmospheric circulation circumstances of bridge deck pavements, take the statistic datum of using life of prefabricated T-beam、box girders and casting girder in region of HUA-NAN as examples to returning analysis ,establishing the life prediction model of this style bridges; associating "the Method of Estimating to Life Cycle Costing,bring forward this method to take a evaluation of economy on bridge deck pavements, insure the life cycle costing reasonable; giving some tactics on the design of bridge deck pavements.

以既有桥梁的桥面铺装层使用现状统计资料为基础，分析了各种类型桥面铺装层的主要破坏形式及其主要损伤原因，同时利用结构分析软件，对桥面铺装层建立空间模型模拟其受力作用过程，分析影响桥面铺装层受力大小的主要因素以及各因素与铺装层受力大小之间的关系；按照桥面铺装层所处环境的不同，以华南地区预制T、箱梁和现浇梁的桥面铺装层正常使用寿命统计数据为例，通过回归分析建立该类型桥面铺装层的正常使用寿命预测模型；利用寿命周期费用评价方法，对特定铺装层的设计方案某一参数的变化所带来的经济效益进行评价；给出桥面铺装层设计构造建议。

This paper presents precise analysis on wall girder torsion of cold bend thin-section steel channel of 2 or 3 continuous bays commonly used.

对单层工业厂房中常用的二跨、三跨连续冷弯簿壁槽钢截面墙梁的扭转问题进行了精确的理论分析。

This paper introduces the anchor design principle and calculation method of the crane girder on cliff wall in Huizhou pump and storage water power station,especially analyses the prototype observation and discusses the relating questions for the anchor design.

简要介绍惠州抽水蓄能电站工程岩壁吊车梁的锚杆设计原则和计算方法，重点对原形观测资料进行分析，并对岩壁吊车梁锚杆设计的有关问题作了探讨。

About 300T road repairing, we will continue perform. TIMAS can use the 300T crane to hoist coal mill for about 1 or 2 days, which needs acceleration. Before plate girder lifting, cranes need to be changed the lifting condition and check.

关于300t 路面修整，我方会继续修复。300t 吊车 Timas 还可使用1-2天吊装磨煤机，但需要抓紧时间，大板梁吊装前，吊车需要改工况及检修。

The result shows combination using of lead rubber bearing and seismic restrainers can not only eliminate the usual defects of curved PC box girder bridge,but can also avoid the negative effect that caused by seismic restrainers,so it is deserved to make popularized.

结果表明：将铅销橡胶支座与常用限位辅助设计结合应用，既可以减轻常见病害，同时避免了限位装置带来的不利影响，值得推广应用。

Then, the construction techniques of R.C girder transfer floor in high-rise buildings are systematically investigated, three important item about construction of transfer floor: the form board and the carriage system, the joining and colligation of reinforcing steel bars, the casting of large volume concrete are partially analyzed and studied, otherwise, the design principle of the supporting system, the main point on connection of the reinforcing bar and the crack control measures of mass concrete are proposed.

然后，系统的研究了高层建筑钢筋混凝土梁式转换层的施工技术，重点对梁式转换层施工的三大分项：模板和支撑体系、钢筋的连接和绑扎、大体积混凝土的浇筑进行了分析和研究，并提出了支撑体系的设计原则，钢筋的连接要点和大体积混凝土裂缝的控制措施。

But the steel box girder is typical space thin-walled bars, because of bending-torsion coupling and steel curved box bridge distribution of stress is relatively more complicated even under dead load, so it is necessary to distribute emulation analysis to the real stress of curved box bridge.

但是钢箱梁是典型的空间薄壁杆件，由于弯一扭耦合作用，曲线钢箱梁即使在恒载作用下其应力的分布也比较复杂，因此有必要对曲线钢箱梁实际的应力分布进行仿真分析。

The methods of plane arrangement and checking of bowl-button steel scaffold were demonstrated in detail based on the engineering construction of cast-in-place Continuous beam in Houyan Cross-bridge of Shenda Highway. In addition, the methods of communicating the length of U-tray and adjusting the gradient have been given. It is pointed out that original pod can adjust the greater longitudinal or tranverse grade in the box-girder construction and welding-steel-bar can reduce partial compression.

通过后盐立交桥连续箱梁施工这一工程实例，详细论述了碗扣式钢管脚支架的平面布置方法及受力验算方法，提出了碗扣式钢管脚支架的U托旋出长度的计算方法及纵横坡的调整方法，并指出采用找零立杆的方法可以解决较大纵横坡度箱梁的施工问题；采用贴焊钢筋的方法可以解决U托偏心受压的间题。

The project used in conjunction with three holes of a prestressed continuous box girder design, layout for cross-bridge 30m +30 m +30 m, two-way four-lane bridge to meet current conditions, after the completion of the construction of the bridge under the bridge to meet the 8-lane two-way traffic conditions.

本工程采用三孔一联预应力连续箱梁设计，桥跨布置为30m+30m+30m，桥上满足双向四车道通行条件，建设完成后满足桥上桥下双向8车道的通行条件。

In the paper,the equations of motion for the vehicle_bridge_MTMD system are presented and the effectiveness of suppressing the transverse vibration of the deck steel plate girder bridge with multiple tuned mass dampers is investigated by the field test and simulated calculation.

本文建立了车-桥-MTMD系统振动方程，对利用多重调频质量阻尼器抑制铁路上承钢板梁桥横向振动的效果进行了模拟计算和现场试验。

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。