地震作用下桩基码头很容易破坏。
Under the earthquake, the pile wharf is very easy to destroy.
研究结构在地震作用下的反应。
这些结论与地震作用下的情况基本相同。
The main conclusions are similar to the condition of seismic excitations.
地震作用是造成砖混结构破坏的直接原因。
The earthquake function is the direct reason to result in the damage to brick-concrete structure.
抗地震作用的核电站的设计。测震仪。安全技术要求。
Design of nuclear plant against seismic effects; seismic instrumentation, safety requirements.
地震作用引发的地基液化，往往导致沉箱基础的破坏。
The soil liquefaction due to earthquakes will usually result in the damage of caisson foundation.
过去常用平面框架计算模型来计算这类结构的地震作用。
Usually planar frame models were used for the calculation of seismic effects on such structures.
通过数值模拟的方法研究边坡在地震作用下的共振特点。
By utilizing numerical simulation method, the resonance characteristics of slope in earthquake are studied.
提出铁路桥墩在地震作用下损伤评估的实验方法并作了讨论。
An experimental method for damage assessment of railway bridge piers under earthquake is presented and discussed.
提出铁路桥墩在地震作用下损伤评估的实验方法并作了讨论。
An experimental method of damage assessment of railway bridge piers under earthquake is presented and discussed.
计算了平面串并联多质点系结构在竖向地震作用下的竖向刚度矩阵。
This article calculated the vertical stiffness matrix of plane frame structures subjected to vertical earthquake action.
分别按反应谱理论和线性时程反应理论计算其在地震作用下的响应。
Its response to seism has been analyzed by the response spectra method and the linear history method.
资料表明，在地震作用下，桩基与土之间存在很强的动力相互作用。
Data show that in the earthquake, there is a highly dynamic interaction between the pile foundation and soil.
简要叙述了计算竖向地震作用的方法以及竖向地震作用的研究进展。
The method of computering vertical seismic force and development of researching vertical seismic effect are briefly introduced.
工程算例表明，阻尼器可以有效地控制结构在地震作用下的扭转变形。
Example of engineering calculation shows that the damper can control effectively the torsional deformation of the structure under earthquake action.
建筑结构在进行地震作用计算时，确定所需计入的振型数是必不可少的。
It is necessary to decide the reasonable mode number when we analyze earthquake action in construction design.
最后，通过算例验证了软件的正确性，并给出了巷道受地震作用的实例。
Finally, the software is validated through the example and a dynamic response instance of the laneway under the seismic load is given out.
建筑结构在地震作用下的破坏主要是由结构的低周疲劳累积损伤引起的。
The main destruction of constructions suffering from earthquake is brought by the accumulated damage of structures under low cycle fatigue.
如何控制结构在地震作用下的扭转作用是结构抗震设计中经常遇到的问题。
How to control the torsional response of structures under earthquake action is a problem frequently occurred in seismic design.
通过对各种参数的比较，研究地震作用下组合结构桥梁的抗震潜力及抗震性能。
By comparison of various parameters, this paper is focused on study the seismic potential and seismic performance for composite bridge.
再按刚度分配原则，可求出实际结构不形成机构体系可能承受的最大水平地震作用。
The maximum bearing horizontal seismic actions of a structure that mechanism system is not formed are calculated based on principle of stiffness distribution for a structure.
软弱地基上的重力式桥墩，在强烈地震作用下，有可能会发生桥墩基础提离现象。
The gravity bridge pier built on weak ground base may be lifted off the base during strong earthquake event.
本文在考察门式刚架轻型房屋钢结构特点的基础上，分析了其在地震作用下的反应。
Based on the characteristics of portal frame light steel structure, the responses of this building under earthquake are analyzed.
且考虑了屋面活载不均匀效应、雪压堆积效应和水平地震作用的影响，荷载组合复杂。
The load combination is complex with consideration of the effect of asymmetry distribution of live load, snow accumulation and horizontal seismic load.
本文提出了地震作用下列车正常行驶极限状态的概念，研究与之相应的最优可靠度问题。
In this paper, the conception of train-running limit state under earthquake is proposed, and the corresponding optimum reliability is studied.
首先，本文利用单自由度结构运动微分方程，建立了结构在地震作用下的能量反应方程。
Firstly, based on the vibration differential equation, the energy response equation of a structure under the earthquake excitation is established.
滑动摩擦隔震是结构抵御地震作用的一种重要的被动控制措施，具有广阔的工程应用前景。
Sliding isolation is an important passive control measure to defend against earthquake action, thus it possesses very broad prospect in engineering practice.
结构的地震作用取值与结构的延性和超强有关，结构的延性和超强可用结构影响系数来反映。
The structural earthquake action value is correlated with the structural overstrength, structural ductility and overstrength can be reflected by the structural influencing coefficient.
通过有限元算例的分析，可以看到在地震作用下建筑物的受力状态和变形情况有所明显改善。
Through the analysis of finite element example, we can see that the stress and deformation situation of buildings has improved significantly under the action of earthquake.
通过有限元算例的分析，可以看到在地震作用下建筑物的受力状态和变形情况有所明显改善。
Through the analysis of finite element example, we can see that the stress and deformation situation of buildings has improved significantly under the action of earthquake.
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