查询词典 trellis girder

Cast-in-site reinforced concrete ; hollow girderless floor ; virtual intersection girder

现浇钢筋混凝土；空心无梁楼盖；虚拟交叉梁

The cast-in-site girderless hollow floor slab with the high-strength thin-wall bamboo core is a new structural system after the joist-girder floor slab, ribbed floor slab, unbonded prestressed floor slab.

论文的主要研究内容如下：首先，文章完成了一块四边简支钢筋混凝土竹芯楼盖以及一块相同尺寸的四边简支钢筋混凝土实心双向平板在短期加载条件下的试验。

Imitational precision is good, which demonstrate that Visual Structure Expert Systemcan be used to imitate cable-stayed bridge construction control, under the condition that forward-calculation is used and girder cell is used to imitate the cable cell, which is capable of acquire better control precision.

施工控制各项参数实测值与理论计算值较吻合、精度较高，说明采用结构大师用正装法对斜拉桥进行施工控制仿真计算，在斜拉索模拟为梁单元的情况下，能够取得较高的控制精度。

The inequable stress of girder will be large.

以前的研究多限于受弯构件

A chart about shear-lag coefficient for curved box girder jointless bridges is presented in this paper, which is developed by taking into account the main parameters based on engineering practice and the research for the future.

从工程实际出发，综合上述最主要的影响参数，对无伸缩缝曲线箱梁桥的剪力滞系数进行分析整理，提出供工程设计及今后研究使用的实用计算图表。

So, some researches are present in this paper: 1 In this paper, a finite element model of curved box girder jointless bridges supported on piles is brought forward, considering the interaction between structure and soil.

本文就无伸缩缝曲线箱梁桥剪力滞效应的分析开展了如下的研究： 1、考虑桩土效应，建立无伸缩缝曲线箱梁桥有限元模型，研究在不同荷载下无伸缩缝曲线箱梁桥剪力滞系数的分布规律。

Main lambdoidal transmission gear of the great girder rolling mill is the key machine of this system.. It"s belongs to big modulus wide gear enduring heavy loads so it"s surface is easy to be hurt.

大型轨梁轧机主传动人字齿轮是轧机主传动系统的关键设备，该人字齿轮是大模数宽齿轮，承受载荷较大，易对齿面造成损伤。

F transverse shearing deflection and noncoincidence of torsion center and gravity center, the equilibrium formulas of variable-curvature box-girder with rectangular cross section were established.

Hy4vO mf0 曲线箱形梁桥具有抗扭刚度大、经济性好、外形美观等优点，是高速公路立交匝道、城市高架桥常用的结构型式。

The main girder is designed to apply C60 pumpable high performance concrete with set retarding, high early strength and good volume stability to avoid cracking and meet the time requirement for the project.

主梁混凝土设计为C60泵送混凝土，采用8米挂篮悬浇工艺施工，混凝土技术要求很高：不仅坍落度损失要小、易于泵送，而且还要具有较长的缓凝时间，以保证一个梁段一次浇筑完成；有较高的早期强度，可在3至4天内进行预应力张拉，以缩短节段悬浇周期；有较好的体积稳定性，以避免梁体产生有害变形和开裂。

Combined with the design objects of the section and tendon curve in a prestressed concrete continual girder bridge, the establishment of parametric model and the redact of parametric drawing program are discussed. And the implementation of the three kinds of parameter-driven: variation-driven, table-driven and dimension-driven is put forward.

结合预应力连续梁桥中梁体截面和钢束曲线等设计对象的具体特点，讨论了参数化模型的建立和参数化绘图程序的编制方法，并提出了变量驱动、表驱动、尺寸驱动这三种参数驱动方式的具体实现。

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。