利用模拟地震振动台对这种大跨预应力井式梁框架结构的抗震性能进行了研究。
The shaking table test has thus been conducted of a large-span prestressed concrete grillage girder frame structure to gain an insight into its earthquake-resistant performance.
利用地震振动台对大跨预应力混凝土井式梁空间框架结构的抗震性能进行了实验研究。
The shaking table test was conducted to gain an insight into the earthquake resistant performance of a large-span prestressed concrete grillage girder space frame structure.
其次,在分析地震波的特征和传播规律的基础上,介绍了爆破地震振动分析与预测的方法;
Secondly, the transmission rules and characteristics of blasting seism wave are analyzed in the paper. The methods of analyzing and predicting blasting vibration are introduced in this paper too.
众所周知,工程爆破常在附近引起地震灾害,某一点地震灾害的大小取决于该点地层的地震振动速度。
As is known to all, engineering explosion always causes earthquake calamity. How serous the calamity is depends on vibration velocity of exploding earthquake in stratum.
震区冻土变形破坏主要包括地震构造成因的地震破裂带和由地震振动引起的裂缝、液化、震陷和崩塌等。
The forms of devastation mainly include earthquake surface ruptures, caused by structure factor, fractures, liquefaction, seismic subsidence, collapse, caused by seismic shaking.
本文提出了高层建筑多塔楼连廊结构采用柔性连接方式,并进行了结构抗震分析和模拟地震振动台试验研究。
The flexible connection for the structure with corridor is researched in the paper by calculation analysis and earthquake simulating shaking table test.
传统的模拟地震振动台试验,由于受振动台台面尺寸的限制,平面尺寸一般不大,作者利用多子台振动台台阵系统对国家体育馆双向张弦梁结构屋盖模型平面尺寸11。
This paper conducted a study on vertical vibration table test of the bi-directional beam string structure of the national gymnasium plane size of 11.
当地震发生的时候,地震波会通过岩石从数百里外传达到地表引起振动。
When this stress is released quickly, it sends massive vibrations, called seismic waves, often hundreds of miles through the rock and up to the surface.
一份新的研究表明,三月份在日本造成巨大灾害的地震和海啸,其强大的振动波几乎已经到达地球外层空间。
The giant earthquake and tsunami that devastated Japan in March were so strong that their vibrations almost reached space, a new study says.
马克•藏伯格:地震仪的基本模型是一个箱体,箱内装置弹簧,弹簧上悬挂重物,地震来临时,重物在竖直方向上振动。
Mark Zumberge: Basically a seismometer is a box with a spring with a mass hanging inside, and as the ground shakes the mass goes up and down.
虽然价格高,但振动台显示,该合金一旦放置在支撑桥梁的最佳位置,地震时就可以节省重造桥梁的成本。
They are expensive, but the shake table shows where they can best be deployed to keep costs down while keeping Bridges up.
藏伯格称,常规地震仪采用电路板记录重物受地震波影响的振动情况。
Zumberge said a conventional seismometer records how its mass is displaced by these waves of seismic energy with electric circuit boards.
我们想出了一种新方法,通过光导纤维将激光导入和输出地震仪,从而精准地测量重物的振动值。
We've come up with a way, using optical fibers, to bring laser light to and from the seismometer, to make very precise measurements of the vibrations of the mass in our seismometer.
地震所引起的地面振动是一种复杂的运动,它是由纵波和横波共同作用的结果。
Caused by the earthquake ground vibration is a complex exercise, it is by the P-wave and S-wave interaction results.
建筑采用非刚性结构提供了一定程度灵活性,也有利于在以后的地震中起到吸收振动的作用。
The non-rigid frame is designed to offer a degree of flexibility that could help to absorb vibrations in future earthquakes.
地震就是地球表层的快速振动,它就像海啸、龙卷风、冰冻灾害一样,是地球上经常发生的一种自然灾害。
The earthquake is the earth surface, it's like a rapid vibration tsunami, tornado, freeze disaster on earth as often happens, is a kind of natural disasters.
当这些压力波撞击海床时,会产生一种频率为0.01赫兹的连续振动,而对我们人类而言这个频率太低了,所以根本听不到,但却很容易被地震仪侦测到。
As these waves pound against the sea floor, they generate a constant vibration with a frequency of about ten millihertz, much too low for humans to hear but easily detectable with seismometers.
一款新的手机应用程序使用智能手机的振动功能提醒人们地震。
A new phone app USES vibrations from smart phones to alert people about earthquakes.
地震是地球内部发生的急剧破裂产生的震波,在一定范围内引起地面振动的现象。
The earthquake is the sharp burst occurred within the earth produced in certain van around the shock wave, ground vibration phenomenon caused inside.
这已经在“智能”建筑物能抵挡因强风或地震所导致的振动的建筑中开始呈现出来了。
This is already starting to happen with the construction of "smart" buildings that can resist the oscillations caused by strong winds or earthquakes.
为了抵挡地震,工程师们在建筑物的支撑梁之间安装了防震器来减弱振动和减少破坏。
To protect against earthquakes, engineers can install shock absorbers between a building's support beams to dampen the oscillations and reduce damage.
在地震区筑坝,还应考虑地震影响。地震的作用增加坝坡坍滑的可能性。粉沙地基在强烈振动作用下还容易引起液化破坏。
Earthquakes have to be taken into account. They can make landslide more possible. If the foundation is made of silty sand, liquidified damage is more possible.
对龙滩水电站蠕变体边坡的爆破振动进行观测、分析和处理,得到了爆破地震波衰减经验公式。
The blasting vibration of creep mass slope of Longtan hydropower station is observed, interpreted and analyzed. The experiential formula of decay for the blasting earthquake wave is obtained.
采用子空间模态分析法建立了适合一致地震激励下桥梁振动控制分析的瞬时最优控制算法。
The Instantaneous Optimal Control(IOC) algorithm suitability for the vibration control analysis of bridges under uniform earthquake excitation is proposed based on the subspace mode analysis method.
伴随这种回弹的振动就是地震。
The vibrations accompanying the rebound are the earth quake .
从整体动力特性可以看出,当高层建筑在地震动作用下产生振动时,屋顶钢塔在高层建筑屋顶层振动的激励下,产生二次型振动,发生显著的“鞭梢效应”。
With respect to integral dynamic properties the steel tower will have secondary vibration under the vibrational stimulation of high-rise building under earthquake to have remarkable whiplash effect.
结构动力学问题研究了包括流致振动、地震和失水事故的结构响应分析。
For the structural dynamics problem, including flow induced vibration, the response analyses under earthquake and loss coolant accident loadings are studied.
讨论了爆破地震产生的地震波传播规律,以及地振动信号和仪器记录的电信号之间的关系。
In the paper, the travel law of seismic wave which is excited by explosive shock, and the relation between the vibration signal of ground and electric signal recorded by instruments are discussed.
讨论了爆破地震产生的地震波传播规律,以及地振动信号和仪器记录的电信号之间的关系。
In the paper, the travel law of seismic wave which is excited by explosive shock, and the relation between the vibration signal of ground and electric signal recorded by instruments are discussed.
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