本文以桥梁仿真分析技术为主线，以整治效果为目标，以荷载试验和长期观测为检验手段，建立了既有钢桥裂纹安全检测评估系统。
Based upon finite element simulation analysis, load tests and long-term observation, a detection and evaluation system for old steel bridge safety was developed in this thesis.
也就是说，这架喷气式飞机可以在相对较高的600至800英尺，在飞行过程中喷洒出有效荷载，从理论上讲更加安全，甚至适合夜间扑火。
That means that the jet can fly at a relatively high 600 to 800 feet spraying its payload as it goes, making it safer in theory, even suitable for firefighting at night.
正确分析风荷载对结构的动力作用是设计既经济又安全结构的重要保障。
Proper analysis of wind-force's dynamic effect on structures ensures economy and safety in designing structures.
施工过程中的安全分析与控制要求对施工活荷载有较准确的估计。
Safety analysis and control during construction require better estimation of live loads.
常规的桥梁荷载试验检测桥梁对于新桥投入使用前或桥梁受到意外损伤时的安全性评估具有积极的意义。
The routine bridge load monitoring system plays a very significant role in evaluating the safety performance of a new bridge before its operation or after unexpected damage.
基床不仅需要具有足够强度以承受高速列车荷载动力作用，而且需要具有合适刚度与以满足高速列车行驶时安全舒适运行的要求。
There are not only enough subgrade bed strength, but also appropriate subgrade bed stiffness to satisfy with the safety and comfort under the high-speed train loading.
初步解决了高耸结构在风荷载作用下安全使用概率的计算问题。
The problem for calculating the probability of serviceability of towering structures subjected to wind loads is thus primarily solved.
进而给出了重荷载安全快速卸载的驾驶操作要求及相关运动规律。
And then driving operation requirements and relevant motion rules for fast and safe unloading of heavy loads are provided.
根据分析获得的破坏荷载、破坏特征、荷载位移曲线以及桥梁安全系数等，对该桥设计进行了评价并获得一些有价值的结论。
According to the calculated ultimate loads, failure characters, load - deformation curve, and safety coefficients, etc, the bridge is evaluated and some valuable conclusions are attained.
波浪上托力是作用在开敞码头上部结构的主要荷载，对码头的安全使用具有重要影响。
The uplift of wave is the main load imposed on superstructure of the exposed wharf, which has an important effect on the safe service of wharf.
分析了动荷载振幅、频率对顶柱临界安全厚度的影响。
The influence of amplitude, frequency of dynamic loading on critical safety thickness of top pillar has been analyzed.
最后，根据大坝可能出现的最不利荷载组合条件，计算了大坝可能出现的最大和最小位移，以利大坝安全监测。
Uader unfavourable combination of loads, the maximum and minimum displacements of the dam are calculated for the sake of safety monitoring.
运营多年的地铁隧道，由于横跨不同的地貌单元和受动荷载的影响，不均匀沉降已威胁到地铁列车的行驶安全。
Having been worked for many years, the asymmetric subsidence has already threatened the safe run of underground trains because it traverses different relief cell and is affected by dynamic load.
地震荷载作用下岩体洞室响应与安全分析是我国西部强地震区大型水利工程建设中需要解决的难点和热点问题之一。
The response and safety of rock cavern (tunnel) under earthquake are the difficulties and hot pots for construction of hydraulic engineering in the intensive earthquake area of West China.
从石窟窟区地震荷载确定、石窟围岩地震稳定性分析、工程防护措施等环节入手，提出了石窟文物抗震安全评价的思路和方法。
The seismic safety evaluation method for grottoes is discussed from aspects of seismic load determining, seismic stability and engineering protection measures.
暗穴临界安全厚度随着暗穴断面尺寸、暗穴半径收敛值、安全系数、地面荷载等参数的增大而增大。
The critical safety thickness of hidden cavity increases with the augment of hidden cavity section size, radial constringency, safety coefficient and surface loading.
非破坏试验的试验荷载为设计值的1 5倍时，节点安全可靠。
When the experimental load of the nondestructive test reaches 1.5 times of the designed value, the joint is safe and reliable.
试验结果表明：结构在正常使用荷载作用下完全处于弹性工作状态，具有足够的开裂安全系数和强度安全系数。
The test results indicate the structure completely work at elastic state under the normal applying load and have enough cracking and strength safety factor.
因安全系数K是从整体结构所能承受的荷载来考虑的，故能较正确地反映结构强度设计时的综合因素。
K is for the safety coefficient from the overall structure can bear the load to, and it could be more accurately to reflect the structural strength design of a combination of factors.
通过预应力吊杆将楼面荷载转移到托梁上，安全地实现托梁拔柱的目的。
The purpose of transferring loads to the joist and wiping out the columns can be achieved safely.
文章针对明孝陵四方城在车辆振动荷载下的安全性问题，应用有限元软件ANSYS进行了数值模拟分析。
In order to deal with the security of SIFANG CITY under vibratile load of busses, this paper does a simulative analysis for it with ANSYS.
风荷载是接触网设计中主要的可变荷载，风速取值的正确与否对接触网的运行安全及系统的经济性至关重要。
Wind load is a main variable in OCS design, its right selection is very important for safety operation of OCS and economic efficiency of the system.
梁端与桥台之间的地震碰撞可让桥台分担部分地震荷载，但是撞击力对桥梁的安全性带来不利的影响。
The percussive force endangers the safety of the bridge, while the abutment is subject to part of the seismic load because of the collision.
利用灰色系统中的灰色聚类方法，并结合数学、力学知识，对大坝在各种荷载组合作用下的安全性态作了分评价。
Utilizing the grey clustering method, mathematics and mechanics knowledge, the safety states of DAMS under typical load combinations are analyzed and evaluated.
输电塔结构的安全直接关系到国家电网的运行可靠性，而风荷载则是威胁其安全的主要外因之一。
Structural safety of transmission towers is directly related to the reliability of the state grid. In fact, wind loading is taken as one of the main harmful factors.
考虑超限车辆的通行方式和特点，更科学、更准确地评定桥梁在超限车辆荷载下的安全状况。
The safety quality of bridge bearing the extra heavy vehicle was able to be evaluated more correctly in the light of the style and specialty of extra heavy vehicle passing the bridge.
本文对高层建筑地下室进行了风载、地震荷载和防护荷载作用下承载力安全度比较。
A comparison of safety factors of bearing capacity for basements in highrise buildings under wind, seismic and protection loads was given.
定性分析了安全系数、地面荷载与临界安全厚度的关系；
The qualitative analysis on the relation of safety coefficient and ground loading with critical safety thickness is made.
在使用期限内，由于长期的荷载作用或突然的灾害，混凝土结构会出现安全隐患，严重的会危及人的生命财产安全。
Because of the long-term action of load or abrupt disaster under the term of usage, the concrete structure will appear the safety problem and endanger the property and the security of people's life.
在使用期限内，由于长期的荷载作用或突然的灾害，混凝土结构会出现安全隐患，严重的会危及人的生命财产安全。
Because of the long-term action of load or abrupt disaster under the term of usage, the concrete structure will appear the safety problem and endanger the property and the security of people's life.
应用推荐