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trellis girder相关的网络例句

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With the development of the prestressed concrete construction technology, more and more prestressed concrete box girder bridges have arisen in our nation. However, after construction, the appearance of the cracks on some of these bridges takes some unfavourable influence on the structures. In common sense, we should take some methods to strengthen and repair these bridges as soon as possible, but because of the civil pecuniary condition, we cant repair all the broken bridges in one time. Therefore a scientific estimation must be made about the load-carrying capacity of these prestressed concrete box girder bridges with cracks, so that we can decide which bridge should be repaired firstly.

随着预应力施工技术的不断进步,我国已拥有越来越多预应力混凝土箱形梁桥,这些桥在使用一段时间后,有很大一部分箱梁出现了大量的裂缝,这些裂缝的出现对桥梁结构将产生不利的影响,所以应尽可能的对其进行加固修补,但限于国内实际经济状况,我们不可能一次性全部进行加固改造,需要对在役的这些开裂后的预应力梁桥的工作状态特别是承载力做出科学的评判,以便区分轻重缓急,优先实施。

With the development of the prestressed concrete construction technology, more and more prestressed concrete box girder bridges have arisen in our nation. However, after construction, the appearance of the cracks on some of these bridges takes some unfavourable influence on the structures. In common sense, we should take some methods to strengthen and repair these bridges as soon as possible, but because of the civil pecuniary condition, we can't repair all the broken bridges in one time. Therefore a scientific estimation must be made about the load-carrying capacity of these prestressed concrete box girder bridges with cracks, so that we can decide which bridge should be repaired firstly.

随着预应力施工技术的不断进步,我国已拥有越来越多预应力混凝土箱形梁桥,这些桥在使用一段时间后,有很大一部分箱梁出现了大量的裂缝,这些裂缝的出现对桥梁结构将产生不利的影响,所以应尽可能的对其进行加固修补,但限于国内实际经济状况,我们不可能一次性全部进行加固改造,需要对在役的这些开裂后的预应力梁桥的工作状态特别是承载力做出科学的评判,以便区分轻重缓急,优先实施。

Analysing the changing discipline, it obtains some characteristics of load transverse distribution of skew girder bridge. It has some certain reference value to the research and design of the skew girder bridge.

通过对荷载横向分布变化规律的分析,得到了斜梁桥荷载横向分布的一些特点,这对斜梁桥的研究和设计有一定的参考价值。

To solve these problems, assembled skew girder bridge has been simulated used general finite element software ANSYS. Through computation and analysis, the paper discusses the effects of different skew angle and span on load transverse distribution of skew girder bridge, and obtains the changing discipline of the automobile load transverse distribution in different situation.

针对这些问题,本文借助于通用有限元软件ANSYS,对装配式斜梁桥进行模拟,通过计算分析,对在不同跨度和斜度影响下的斜梁桥荷载横向分布进行探讨,并得到了不同情况下汽车荷载横向分布变化规律。

The results show that, with the same steel consumption, the longitudinal and transverse girder deck scheme is a little better in stiffness, dynamic characteristics and stability than those of the other scheme's. For the dense transverse girder deck scheme, because of no longitudinal beams, the axial forces of the tie beam and the deck slab are higher than those of the other scheme's. The improving rate of the axial force for the deck slab is about 50%. The inside and outside bending moments of the cross beams reduce to below half of the other scheme's. The longitudinal stress of the deck slab is higher on the whole and the traverse stress is less than that of the other scheme's. The maximum traverse stress of the deck slab is below 40% of the other scheme's.

研究结果表明:在材料用量相同时,纵横梁方案桥梁刚度较密布横梁方案的桥梁刚度稍大,桥梁动力特性比后者的优,其稳定性也比后者的强;对于密布横梁方案,由于不设纵梁,系梁和混凝土板承受的纵向力都较纵横梁方案的大,混凝土板增幅达50%左右,横梁面内和面外弯矩则明显减小,都低于纵横梁方案的一半,混凝土板顺桥向应力整体比纵横梁方案的高,而横桥向应力则较低,最大值低于纵横梁方案的40%。

The company's main business areas: 1, cylinder, square cylinder, cone-shaped mound, hollow pier, abutment, guard-rails, tie beam, beam cap, hollow beam, box girder, T girder bridge templates and other design and processing.

1,圆柱、方柱、锥形墩、空心墩、桥台、护栏、系梁、盖梁、空心梁、箱梁、T形梁等各种桥梁模板的设计与加工。

The main technical systems that SBS has are: door style rigid frame house system, steel frame-core tube residence system, steel frame-steel plate with slots system, rectangle steel pipe-H section steel girder system, interveined joist frame system, wide-spanned board system, steel frame-steel underprop system, surrounding system, separated structure system, suspension system for balcony and plank of air-conditioners, LM board as shear wall system for low buildings, and strong girder-weal column structure system for low buildings.

赛博思拥有的技术体系主要有:门式刚架房屋体系、钢框架-核心筒住宅体系、钢框架-开缝钢板剪力墙体系、方矩管-H型钢梁体系、交错式桁架体系、大跨度楼板体系、钢框架钢支撑体系、围护体系、隔断结构体系、两侧阳台、空调机支架独立悬挂系统、低层住宅LM板兼作剪力墙体系以及低层住宅强梁弱柱结构体系等。

In order to understand the dynamic property of extradosed cable-stayed, built up its plane continous rigid-frame model and compared with each other, concluded that the former is more complex due to the remarkable coupling effect of cable, pylons and box-girder. The dynamic property of box-girder decide the dynamic property of the bridge, whose whole structure is comparative rigid. This paper indicated that the bridge is not attribute to flexible structure, because its basic free vibration cycle is more shorter than the cable-stayed bridge.

为了更好的理解矮塔斜拉桥的动力特性,还建立了平面梁单元的连续刚构模型,并与平面梁单元的矮塔斜拉模型进行了对比分析,结果表明,矮塔斜拉模型由于索、塔、梁的高阶振型耦合显著,其振型较连续刚构复杂,灵江大桥的动力特性主要由主梁的动力特性决定,其结构整体刚度较大,基本自振周期较斜拉桥短,不属于柔性结构。

In this dissertation, considering the influence of 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. Based on deformation expression of arbitrary point on the girder and relationship between inner forces and displacement equations, considering noncoincidence of torsional center and gravity center, the governing differential equations for variable-curvature box-girders were generalized.

针对具有竖直对称轴的矩形断面变曲率箱梁,考虑了挠曲剪切应变和曲梁剪心和形心分离的影响,推导了变曲率箱梁的平衡方程;通过箱梁内任一点的位移方程和内力-位移关系,推导了考虑曲梁剪心和形心分离的变曲率箱梁的挠曲扭转控制微分方程。

The dissertation use emulation analyse method which is based on space finite-element method to analyze curved box girder bridge is different from the grillage structure theory which is rifeness used on curved box girder bridge design.

国内目前弯箱梁桥的设计基本上是基于杆件单元理论,用空间模型对弯箱梁进行仿真分析的不多。

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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。

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But with the development of industry, the proletariat not only increases in number; it

但是,随著工业的发展,无产阶级不仅人数增加了,而且它结合成更大的集体,它的力