梁

The paper deeply studies L-C brake beam of freight car and finds some questions about it in the way of design and technique through analysis of the failure happened on L-C brake beam.

通过分析货车L-C组合制动梁在车辆上出现的各种严重问题，深入探讨L-C制动梁在设计与工艺方面具体存在的问题。

Firstly, this paper simulated rationally the welding line of the connect parts of brake beam, after that, calculated, analyzed, and compared the structure intensity of several schemes about designed K3 type bogie brake beam.

首先对制动梁各连接部位的焊缝进行合理模拟，然后对设计的K3型转向架制动梁的几种方案进行结构强度计算、分析、对比，最后提出改进意见。

Good beam after the beam of wood bricklayer will be prepared baskets of steamed bread pudding thrown down, the following people on loot, that grabbed the glory, not scramble to grab the hands of the people to away.

梁上好后，在梁上的木瓦工将事先准备好的一篮一篮的糕馒往下抛，下面的人就哄抢，抢到的以为荣耀，抢不到的到抢到的人手中去夺。

Stress distribution of tower beam joint region of the Liuyanghe bridge is analysed by use of the spatial FEM with the shell,beam and brick element.

采用板、梁及三维实体单元相结合，对长沙市浏阳河洪山庙大桥塔梁根部区域进行空间有限元分析。

Setting slide layer is a good measure to reduce the interaction between the rail and bridge, and rail expansion joint on long span bridge can be cancelled.

桥上纵连板式轨道借助底座板的纵连解决梁端转角对轨道结构的不利影响，通过设置滑动层来削减梁轨相互作用，在大跨桥上可以取消钢轨伸缩调节器，这种设计思想对大跨桥上铺设无砟轨道具有积极的借鉴意义。

And, based upon the introduction of constitution and reinforcement of bridge pier cap the span adjustment method combined with bridge pier cap and beam seat is proposed.

以神朔复线两座大桥工程为例，介绍了施工图设计概况，阐述了加垫梁墩帽的构造及配筋，提出了采用桥墩墩帽加垫梁调整孔跨的优缺点及其适用条

Adaptive control theory,structural parameter identification and error analysis are used to control the construction of pre-stressed-concrete cantilever casting bridge.The construction camber for main beam can be determined by BP artificial neural network.The deflection of main beam should be tested persistently.

对于采用悬臂浇筑施工方法的预应力混凝土桥梁，运用自适应控制理论进行结构参数识别和误差分析；利用BP人工神经网络确定主梁预拱度；在施工过程中对主梁挠度进行连续监测。

This paper applies nonlinear finite element method to analyze the behaviors of connections under cyclic load at fist time. Contact elements are set between end plate and column flange, screw cap and neighborhood plane, bolt bar and hole. After verification of FEM, more than 50 species of 10 series are computed.

主要研究了端板尺寸，柱的轴压比，强柱系数，梁端剪力，柱翼缘和腹板尺寸、宽厚比，螺栓的级别、大小、数量、预拉力和排列方式，连接抗滑移系数，端板加劲肋以及柱腹板加劲肋，材性，梁柱截面尺寸效应等对连接滞回性能的影响。

The main beam of car dumper roller is made a important transformation using tensile bar, using the other method auxiliary, we solve thorough the problem of main beam break due to stress focus , Operation practice shows that after transformation, the item is a great success.

介绍秦皇岛港煤码头四期工程翻车机系统的技术改造项目，其中翻车机钢结构的主梁部分采用拉杆结构，辅之以其他方法，彻底解决了应力集中导致的主梁断裂问题，实践表明，改造获得了成

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。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷