抗震

Then through dynamical analysis, every instantaneous acceleration distributing of slope under dynamical earthquake can be got too. According to this result, adding earthquake force to structure by way of inertial force, this paper analyses the slope stabilization by using FEM strength reduction method and gains every instantaneous safety factor and its corresponding slide. Curves of safety factors versus duration can be made by curvefitting. By safety factors versus duration curves and slides, we can value structure's quakeproof stabilization and point its slide out. By these principles, programs of FEM stabilization analysis for each moment are organized.

首先通过三维非线性有限元静力分析得到动力分析的初始应力，再进行动力分析得出边坡在动力作用下每一瞬时的加速度分布，根据每一瞬时的加速度分布的结果，将地震作用力作为惯性力加在结构上，用有限元强度折减法进行边坡稳定分析，得出在地震动力作用下每一瞬时的安全系数及对应滑裂面，拟合可得到一条安全系数随时间变化的曲线，根据这条安全系数时程曲线及滑裂面，综合得出结构的抗震稳定安全系数及对应的滑裂面。

Tests of three interior and three edge slab-column connections are studied in this paper. The properties of connections under vertical load and lateral reversed load are analyzed. The load-displacement hysteretic curve, development of crack, energy dissipation capacity and failure mode of slab-column connections are studied.

本文首先进行了六个板柱节点在竖向剪力和低周反复荷载作用下的试验研究，探讨了节点不平衡弯矩、板厚、柱截面尺寸、板配筋率等对节点受力性能和抗震性能的影响，分析了节点的荷载-位移滞回曲线、裂缝开展、延性性能和破坏形态等。

The step by step integration and iteration procedure was performed within every time interval.

采用空间等参单元，对某坝作了实算，提供了坝体及面板的三向静动变形和应力、伸缩缝和周边缝的三向静动变形等成果，并提供了面板的抗震稳定安全系数过程线。

Finally, programs for computing of Tubesheet, hopper, frame, joist are developed, and designing of Tubesheet, optimizing of hopper, aseismatic performance of joist are analyzed.

最后利用开发的花板、灰斗、框架和节点分析模块，分析了花板的设计方法、灰斗的优化措施、节点的抗震性能。

Such companies have a larger land bank and projects, seismic ability, high levels of profit.

这类公司拥有较大的土地储备和项目，抗震能力，高水平的利润。

A candidate for Liapunov function is found out based on the theory of energy.

基于Liapunov第二法，从系统的能量角度出发进行稳定性分析，找到控制系统的Liapunov函数，本着工程抗震设计中安全与经济的原则，应用允许结构反应进入非线性或塑性阶段的理论，判定所提出的混合控制方法具有Liapunov意义下的稳定

General procedure for liquation experiment of tailing dam s has been generalized,that is,preliminary identification has to be done for tailing dam s according to Design Code for seismic building's identification conditions.

概述尾矿坝液化试验判别的一般步骤，即根据《建筑抗震设计规范》中的初判条件对尾矿坝土层进行初判，在尾矿坝土层不满足初判的条件下，利用标准贯入试验对尾矿坝是否存在液化危害进行复判。

The main diagonal strut-tie model, rhombic reinforcement truss model and stirrup truss model which working together in shear-bending moment resistance mechanism are also presented based on research of the experiment specimen's behavior.

本论文在这类构件抗震受力特征分析及钢筋混凝土剪弯交变作用构件中组合受力特征分析的基础上提出了以对角交叉斜筋及菱形钢筋为主要配筋的"综合斜筋"小跨高比连梁设计方案。

In the seismic analysis of hydraulic engineering before, the traditional model of fixed boundary with massless foundation were often adapted, and the radiation damping of foundation and the inhomogeneity input of wave-motion could not be took into account.

以往大多数水利工程的抗震分析中，多采用传统的固定边界无质量地基模型，该模型未能考虑地基辐射阻尼的影响和地震波动的不均匀输入等问题。

At the moment, control theory for the linear structure has already been developed very maturely.

结构控制是结构抗震中有发展前途的一种方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。