查询词典 slab bridge

This thesis gives the introduction of the construction technique of a Slab Non-ballast Track, which has been used in the Shuanghe Bridge of Qin-shen Passenger Railway, and sheds light on a series of key construction techniques, mainly including: fabrication of the trackslab, research and production of CA sand mortar, construction of concrete bearing and convex retaining wall, paving of track slab, pouring of CA mortar mixture, construction of the filled cushion slab etc. All these will have the significant reference and application value for its employment to the construction of the city overhead to rack and the express railway.

论文介绍并总结了在秦沈客运专线双何特大桥采用的无碴轨道的一系列关键施工技术，主要包括轨道板的制造工艺、CA砂浆的研究及配制、混凝土底座及凸形挡台施工、轨道板铺设、CA砂浆灌注、充填式垫板的施工等技术，对城市高架轻轨、高速铁路桥梁等工程，此项新技术的推广具有重要参考价值和实用价值。

Ab stract : Continuous slabΟdeck is an important structural measure for simplyΟsupported girder bridge , but it is easy to be damaged and difficult to be repaired which is a common problem of simple supported beam highway bridge.

桥面连续构造是简支桥梁的一个重要构造措施，但很容易损坏，且易损难修，是公路简支桥梁的通病。

Wheel/rail noise of the high-speed slab track on concrete bridge and that of the urban elevated supporting block track are predicted respectively. Noise of the slab track, compared with that of the ballasted track, is more severe. The noise of the slab track is about 6.2dBA higher than that of the ballasted track for the receiver nearby the rail, and about 3.5dBA higher than that of ballast track for the receiver

对降低高速铁路桥上板式无碴轨道及城市轨道交通桥上支承块式无碴轨道轮轨噪声的技术措施进行了研究，包括：(1)分别就板式轨道和支承块式轨道结构参数的低噪声设计原则进行了研究；(2)对几种典型的新型轨道用吸声材料的降噪效果进行了分析，结果表明降噪效果显著；(3)就声屏障高度、位置、形状以及声屏障内侧敷设吸声材料对降噪效果的影响进行了分析，结果表明：声屏障越高、越接近轨道，降噪效果越好；声屏障内侧敷设吸声材料，可降低钢轨近旁噪声2.0～3.0dBA，可降低近地面噪声约1.5～2.0dBA

In this thesis, a detailed dynamics model of various kinds of tracks laid on the bridge such as ballast track, REHDA track, slab track, elasticity supported block track and all kinds of roadbed-bridge transition structure of the high-speed railway is established for the

本文在国内首次针对高速铁路桥上有碴轨道、长枕埋入式无碴轨道、板式轨道、弹性支承块式轨道结构以及各种轨道的路桥过渡段建立了系统全面的动力学模型。

Based on rail/wheel reaction and track/bride reaction theory and systems engineering theory, new vehicle-track and vehicle-track-bridge system dynamic models are established and discussed in details, including ballast track model and ballastless track model. The characteristics of the models are:(1) vehicle-track and vehicle-track-bridge system dynamic models are coupled in vertical and lateral;(2) track vibration on bridge is taken in account, track on bridge is considered as one or two layer continuous-point supported rail model, according to actual track structure, interaction between vehicle and bridge transfer from track structure;(3) three type of ballastless track models (tieembanked, elastic-tie-block, slab track) are presented;(4) models reflect the main feature of actual vehicle, track and bridge structure, the response computation frequency of models is relatively broad, which can be applied to analyze both low frequency and high frequency vibration.

基于轮轨相互作用和线桥相互作用特点，本文从系统工程角度出发建立了车辆、有碴轨道和无碴轨道、简支箱梁桥垂向和横向耦合系统动力分析模型，该系统模型具有以下特点：（1）车线、车线桥体系均考虑为垂向、横向耦合振动系统，车线间通过轮轨接触几何关系耦合，轨道与桥梁间通过轨道与梁体间的力与位移协调条件耦合；（2）充分考虑桥上线路在车线桥系统中参振作用，根据桥上线路轨道结构特点将桥上轨道结构模型具体化，即对桥上轨道结构视为多层支承体系，车桥间的动力作用通过轨道结构来传递；（3）建立了三种形式无碴轨道动力分析模型，即长轨枕埋入式、弹性支承块式和轨道板式无碴轨道模型；（4）系统模型详细，分析频带宽，适用范围较广。

The slab-stone bridge, called Wan Li Bridge, was an important passage leading to He Hua Road.

照片中的石板桥就是万利桥，是南门蝉河通向荷花路的交通要道。

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。

Based on the destructive test of certain old pre-stressed concrete hollow slab after structural strengthening by CFS,the destructive mechanism and ultimate bearing capacity of old pre-stressed hollow slab after structural strengthening is being researched,which is useful for the strengthening design of old bridge and solvating of single slab problem.

通过某已使用10年的旧桥预应力混凝土空心板受拉区碳纤维布加固后的破坏荷载试验研究，对受拉区加固后的旧桥预应力混凝土空心板的破坏机理、变形性能及极限承载能力等进行了研究，为旧桥预应力混凝土空心板的加固设计及单板受力问题的分析解决提供了试验依据。

The internal force of bridge deck slab can be analyzed through the method that set model. The result of calculation compares with the regulation in " specification ", it can be as to a kind of supplement calculating about the internal force of bridge deck slab in " specification ".

本文建立了分析稀排肋板式结构桥面板内力的模型，计算结果与《规范》中的规定进行比较，它可以作为对《规范》有关桥面板内力计算的一种补充。

Combined with general situations of Lamawan the Yellow River Bridge the major diseases as well as the causes of those diseases of this bridge are analyzed,at the same time corresponding repairing and reinforcement measures of cracks,bridge pavement slab and bottom slab of box beam are proposed,in order to ensure the normal service and safety of this bridge.

结合喇嘛湾黄河大桥的具体概况，分析了该桥存在的主要病害及其各种病害产生的原因，介绍了裂缝、桥面板、箱梁底板等的维修加固措施，以保证该桥的交通正常运行以及安全性。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了