查询词典 main beam

Such as: how to better play to high-performance concrete properties; how to avoid temperature changes, shrinkage and creep of concrete, foundation, uneven settlement and so on; how to ensure that close up before the end of the vertical deflection of the cantilever 2 and the main beam axis deviation of the lateral shift does not exceed the permissible range; how to ensure that folded after the bridge linear positive; how to avoid the construction of the main beam and so there have been a big stress.

如何更好地发挥高性能混凝土性能；如何避免温度变化、混凝土收缩徐变、地基不均匀沉降等的影响；如何保证合拢前两悬臂端竖向挠度的偏差和主梁轴线的横向偏移不超过容许范围；如何保证合拢后的桥面线形良好；如何避免施工中主梁截面出现过大的应力等。

The main compositions of the Slab Forming Prop system include the PROP, the Drop-head, tripod, Main beam, secondary beam and board.

混凝土楼板独立支撑系统主要由支撑架、托头、稳定三角架、横梁、模板五大部分组成；本系统在保证安全的前提下将脚手架中的连接部位降到最少，以次减少对人工的依赖。

The main, sub-beam handover, the first main beam arch camber, arch camber beam after the meeting.

主、次梁交接时，先主梁起拱，后次梁起拱。

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。

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

Leung is a combination cable-stayed bridge for the main beam steel structure, the concrete structure of the bridge deck, the deck of the main beam and the combined force of the common cable-stayed bridge.

结合梁斜拉桥是一种主梁为钢结构，桥面系为混凝土结构，主梁与桥面系结合在一起共同受力的斜拉桥。

The arch bending on the top of the original main arch ring corresponds to every arch rib and the bottom beam on its landscape orientation. As a result it becomes a down arc frame similar to slab-and-beam floor system. On the arch bending and bottom beam just established, standing pillar, main beam, horizontal rib beam and bridge front-panel would be built subsequently. Both ends of the main beam would then be put off the new hat beam made of reinforced concrete. Now, it becomes an upper slab-and-beam floor system. Two decks will be joined together on the middle of the bridge, which forms the ability of spanning and loading.

在原主拱圈拱肋相应位置处增设拱伏，横向增设底梁，形成一个下层弧形的类似肋梁楼盖的结构；在已浇筑好的拱伏与底梁上，继续现浇立柱、主梁和横向肋梁、桥面板，主梁的两端搁置在桥台处新增加的钢筋混凝土台帽梁上，形成一个上层肋梁楼盖结构，并且上下两层楼盖在桥梁跨中互为渗透结合成一个牢固的整体，共同完成了跨越和承载的能力。

For the structure stress condition, the dead load is born mainly by continuous rigid-frame, and the live load is born by both the arch rib and the main beam, the force separately bora by the arch rib and the main beam is influenced by the whole rigidity of beam and arch, and by areas of flexible hanger rod, the structure perforce is no longer same with the common beam and arch, and the inner force analysis progress is more complex to the common bridge system, especially, the multi-direction stress analysis to the combination area of pier、 arch and beam is very difficult, for such reasons, so it is very necessary and important to have stress performance analysis in the combination area of pier、 arch and beam.

从结构受力情况来看，梁体自重主要由连续刚构承受，活载由拱肋与主梁二者共同承受，各自承受力的大小受梁、拱相互整体刚度、柔性吊杆面积的大小影响，结构性能已不同于一般的拱与梁，结构内力分析的过程较一般桥梁体系较为复杂，特别是墩、拱、梁结合处的多向受力状况的分析难度更大，所以对该桥式结构，墩、拱、梁结合部的结构受力特性进行进一步地理论分析测验研究也就显得十分必要和迫切了。

The tower plate utilizes stainless steel double bottom plates welded main beam ,by which welding deformation can be reduced,straight linear degree can be guaranteed, main beam rigidity as well as entire beam stability can be strengthened to resist horizontal orientation live load,and tower height can be lowered as well.

塔盘用不锈钢双腹板焊接主梁，能够减小焊接变形、保证主梁的直线度、增强主梁抗水平方向动载荷的刚性和主梁的整体稳定性、降低塔体高度。

The welding distortions of the main beam and side beam of expansion and contraction beam are predicted and analysed based on the welding distortion calculation method of relative shrinkage volume.

采用基于相对收缩体积的焊接变形理论计算方法，对伸缩缝梁的中梁和边梁结构的焊接变形分别进行了预测、分析，并对实梁的焊接变形量进行了测试。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐