查询词典 bridge bird

The design feature proceed know clearly systematic analysis of the text versus canting pull steel tube concrete arch bridge, it is above "joist type built-up arch bridge" architectural characteristic analytic foundation to said bridge type, certain technical characterstic point syntheses handle to oneness new bridge type among steel tube concrete arch bridge, stayed-cable bridge type.

本文对斜拉钢管混凝土拱桥的结构特点进行了系统的分析，该桥型是在"桁式组合拱桥"结构特性分析的基础上，将钢管混凝土拱桥、斜拉桥等桥型中的某些技术特点综合运用于一体的新桥型。

It is the image body of the feudalism grade system again now:The in the center the most outstanding 雕 wears the bridge noodles of the 蟠 dragon pillar head, emperor one person pass, call"resist road bridge";Two or so 雕s have lotus flower pillar the bridge noodles of the head, the prince passes, calling "princes and dukes bridge";Then both sides of, allows three articles above text martial big minister to pass, calling "grade bridge";Depending the common ectype stoning bridge of side most was four articles following officialdom and soldier to walk of, calling Mr.

它又是封建等级制的形象体现：中间最突出的一座雕着蟠龙柱头的桥面，只许皇帝一人通过，叫"御路桥"；左右两座雕有荷花柱头的桥面，只许亲王通过，叫"王公桥"；再两边的，只许三品以上的文武大臣通过，叫"品级桥"；最靠边的普通浮雕石桥，才是四品以下官吏和兵了走的，叫"公生桥"。

The mechanical behavior of Shape Memory Alloys material is tested, and the constitutive model of the SMA is established. A kind of SMA combined rubber isolator is developed, and the isolation effect of the SMA combined rubber isolator for long-span bridge and tall building structures is numerically simulated, from which the adaptive isolation performance and the self-restoring capacity of the SMA combined rubber isolator are verified. A kind of SMA damper is developed, the mechanical behavior of the SMA damper is tested, and the model of restoring force of the SMA damper is established. The theory and method of adaptive control based on the SMA damper for the long-span bridge are built, and the effectiveness and reliability of the adaptive control for the long-span bridge using the SMA damper are verified through numerical simulation and model test. The MRF-04K type magnetorheological damper is developed, the mechanical behavior of the MR damper is tested, and the model of restoring force of the MR damper is established. The theory and method of adaptive control based on the MR damper for the long-span bridge and tall building structures are built, and the effectiveness and reliability of the adaptive control for the long-span bridge and tall building structures using the MR damper are verified through numerical simulation and model test. In addition, the theory and method of sub-structural damage identification for long-span bridge are derived, the influence of soil-structure dynamic interaction on the seismic isolation and control effects with different isolation and control measures and the damage responses and the sliding base-isolation of large structures under the excitation of underground explosion are investigated.

试验研究了形状记忆合金材料的力学性能，建立了SMA材料的本构模型；研制了一种SMA复合橡胶隔震支座，数值仿真分析了应用SMA复合橡胶支座的大跨桥梁和高层建筑结构的隔震效果，从而验证了SMA复合橡胶支座的自适应隔震性能及其震后自恢复能力；研制了一种SMA阻尼器，试验研究了SMA阻尼器的力学性能，建立了SMA阻尼器的恢复力模型，建立了基于SMA阻尼器的大跨桥梁结构自适应控制理论与方法，通过数值仿真与模型试验验证了大跨桥梁结构SMA阻尼器自适应控制的有效性与可靠性；研制了一种MRF-04K型磁流变阻尼器，试验研究了MR阻尼器的力学性能，建立了MR阻尼器的恢复力模型，建立了基于MR阻尼器的大跨桥梁和高层建筑结构的自适应控制理论与方法，通过数值仿真和模型试验验证了大跨桥梁和高层建筑结构MR阻尼器自适应控制的有效性与可靠性；还建立了大跨桥梁结构的子结构损伤识别的理论与方法，研究了土-结构动力相互作用对不同隔震和控制措施的减震控制效果的影响以及地下爆炸波作用下各类大型结构的灾害响应与滑移隔震。

Lo Wu Bridge is not only a narrow bridge at the time, only moving train, but no bridge unroofed shed, left to sun and rain. In 1959, the government will be the Lo Wu Bridge turned into steel and concrete bridge deck has also widened more than doubled. 1962, also stamped with an iron Peng Ding, added in the iron bridge on both sides of the iron railing, and covered the sidewalk. The 20th century, the early 70s, the author in Guangzhou Railway Administration to do secretarial work, on several occasions to the Footbridge is the first walk.

当时的罗湖桥不但桥面狭窄，只能行驶火车，而且桥身无顶无棚，任凭雨淋日晒。1959年，人民政府将罗湖桥改建成钢筋水泥桥，桥面也加宽了一倍多。1962年又加盖了铁皮篷顶，在铁桥两侧增设了铁栏杆，并铺上了人行道。20世纪70年代初，笔者在广州铁路局做秘书工作，曾多次到罗湖桥头漫步。

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。

In the interim governance new river dug river 3.3 kilometres, the new zoo at the locks, new long river bridge, forklifts official, Beijing kits Railway Bridge, Highways and Bridges Academy, timber building bridges, small East Village West Bridge, the small East Village Bridge, MTR Cheliangduan, xinjiekou Main Street Bridge, North riparian communities a total of 11 blocks across the bridge, one Block secret scheme, two blocks ran Jiezhizha 2 Block Terminal 1 Block, fill water gates, the original half-buried in the ground with heavy river finally light.

在此次治理中转河新挖河道3.3公里，新建动物园船闸一座、新建长河桥、叉车厂桥、京包铁路桥、学院路桥、木材大厦桥、东小村西桥、东小村东桥、地铁车辆段、新街口大街桥、北滨河路桥共11座跨河桥，1座暗涵，2座暗沟节制闸，2座码头，1座补水闸，原来被埋在地下的一半转河终于重见了天日。

This thesis is based on crane dynamic theory and finite element theory, and utilized software platform of ANSYS. It realizes model analysis and transient analysis of steel rope and bridge structure. The data and conclusion offered effective method to bridge crane design. The thesis mainly includes:According to crane dynamic theory, established relevant dynamic model, and analyzed the dynamic properties of the bridge structure of the bridge crane, including the natural frequency, the model shape and the dynamic stress. A way to analyse the dynamic response of the bridge structure of the bridge crane which takes into account the dynamic properties of the steel rope pulley block has been explored successfully.

本文基于有限元理论和起重机动力学理论，以有限元分析软件ANSYS为平台，实现了计算机对钢丝绳系统和桥架的模态分析和瞬态动力学分析，得到的分析数据和结论对桥式起重机动态设计提供了有效的手段，论文主要内容包括：根据起重机动力学理论，建立了相关动力学模型，并对桥架结构进行动态性能分析(包括固有频率、振型以及动应力)的分析，探索出一种考虑钢丝绳滑轮组的动态特性在内的桥式起重机桥架结构动态应力分析的方法。

In order to ensure the construction process safe and the bridge structure would reach its ideal state, lots of questions in its whole construction control and swivel ereetion construction control are discussed and studied.Firstly, based on the experiences about the cable-stayed bridge's construction control, do emulational anlysis to Sui Fenhe cable-stayed bridge by using the bridge analyzing program of BSAS and Dbridge, analyze the parameters' sensitivity, study the temperature effects, discern the relevant parameter's errors about construction control and optimize its construction state.Secondly, as an example of Sui Fenhe cable-stayed bridge's swivel erection construction control, present the design and construction techniques of simple point supporting and even articulation and level swivel erection for long-span cable-stayed bridge, study its load-bearing system, balance system, power system and adjustment system in detail, check its static stability on the state of swivel erection construction and monitor the whole swivel erection construction.

首先，在斜拉桥施工控制经验的基础上，用桥梁结构分析程序BSAS和Dbridge对绥芬河斜拉桥进行了详细的施工仿真分析，参数敏感性分析，温度效应分析，施工控制影响参数误差分析和结构施工状态的最优化控制；其次，以绥芬河斜拉桥转体施工控制为例，介绍了大跨度斜拉桥单点平铰水平转体设计与施工技术，详细研究斜拉桥单点平铰水平转体支承系统、平衡系统、动力系统和调整系统，并对本桥结构转体施工做静力稳定性验算及转体过程的监控。

As the bird become a eagle,every day he can hunt more and more quarry.the people who is in this village or other village admire the bird.when the bird head this admire,he become pride slowlly.the day after a day,the bird didn't want to do anythings,he think he have a brave bird and no problem can stop he.so as to every day he wait the admire from people.

当这只小鸟通过努力终于变成一只勇敢鹰。每天他都能捕获越来越多的猎物。本村的邻村的人都来看它赞美他，当小鸟听到了这些赞美的话，慢慢的它就变得很骄傲，以至于日复一日，他都懒的去做什么事情，他认为他已经很勇敢而且没有什么问题可以难倒他。所以呢每天它都在待待着人们对他的赞美。

Vehicle-bridge vibration system can be divided into two subsystems at the interface of wheel and bridge, one for the bridge and the other for the vehicle. The vehicle-bridge coupling relationship, including the geometrical compatibility condition and the static equilibrium condition between vehicle and bridge, is established.

将整个车桥系统在车轮和桥梁接触处划分为车辆、桥梁两个子系统，通过车轮和桥梁接触点处位移协调条件和力的平衡条件建立了车-桥系统动力方程。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？