倒塌

High-rise buildings are currently not designed to have complete evacuations of occupants," he said."

在&9·11&事件中，从最后几人冲出大楼直到塔楼倒塌，中间只经过了短短几分钟。

The old economic system collapsed like a house of cards,and the new system was finally established.

旧的经济体制像纸牌搭的房子一样倒塌了，新的体制最终建立起来了。

The main research contents are as follows:1. Through massive calculation, analysis and comparison, sum up the similarities and differences between the special-shaped cross sections and rectangular cross sections in mechanical features, between reinforced concrete special-shaped columns and rectangular columns in load-bearing capacity, ductility performance and provide necessary basic concepts and data for further understanding the characteristics of the special-shaped columns;2. Through massive elastic calculations and elasto-plastic analysis, under the preconditions of satisfying the code's requirements for axial compression ratio, limit value of lateral displacement and load-bearing capacity of normal section,oblique section and beam-column joint, under circumstances of different intensity of earthquake, structure dead weight, sort of site and column grid bay dimension, the variation regularity of maximum suitable height of structure, and thus sum up the maximum suitable height of structure for code for the purpose of macro-control while deciding the design scheme;3. Make a preliminary study on the stress feature of reinforced concrete special-shaped column and Z-shaped column of which the ratio of limb length to limb thickness is between 4~5 ,and the preliminary design method is suggested;4. Through elato-plastic time history dynamic analysis of typical projects, check up the weak storey of the special-shaped column structure and yielding, breaking and collapse mechanism to satisfy the earthquake resistant requirement to buildings of remaining stand under strong earthquake;5. Derive for project use simplified calculation formula of vibration period, suitable vibration period, suitable rigidity of special-shaped column structure through theoretical analysis, and provide an easy and practical method for deciding the structure scheme economically, safely and reasonably;6. Based on the study achievements in theory and massive analysis and calculations of this paper, sum up the regularities of inner force, deformation of special-shaped column structure and seismic conceptual design, and thus the suggection of seismic design of special-shaped column structures is presented.

本文研究的主要内容如下：通过大量的计算、分析和对比，总结出异形截面与矩形截面在力学特性、钢筋混凝土异形截面柱与矩形截面柱在承载能力、延性性能等方面的异同，为深入了解异形截面柱的特点提供必要的基本概念和数据；通过大量的弹性及弹塑性计算分析，在满足规程对轴压比、侧移限值及正截面、斜截面、节点承载力抗震验算要求的前提下，在不同抗震设防烈度、结构自重、场地类别及柱网开间尺寸情况下最大适宜高度的变化规律，并在此基础上总结归纳出异形柱结构的最大适用高度规定，可用于规程，以便于在确定方案时起到宏观控制的作用；对肢长与肢厚比在4～5的钢筋混凝土异形截面柱及Z形柱的受力特点进行初步探讨，提出初步的设计方法；通过对典型工程的弹塑性动力时程分析，检验异形柱结构的薄弱层及屈服、破坏、倒塌机制，以达到建筑物大震不倒的抗震设防要求；通过理论分析，推导出异形柱结构自振周期，以及适宜自振周期、适宜刚度的工程实用简化计算公式，为经济、安全、合理地确定结构方案提供简便实用的方法；在本文理论分析、计算以及大量的研究成果基础上，总结归纳出异形柱结构内力、变形的规律及抗震概念设计内容，并在此基础上提出异形柱结构的抗震设计建议。

Other hazards during earthquakes include rockfalls, ground settling, and falling trees or tree branches.

在地震中发生的灾难还包括崩塌、地面沉降以及树木或树枝倒塌。

Upon forced landing the ship collapsed because material and a supply of gas needed to refill the cells was not available.

经迫降船舶倒塌，因为材料和天然气供应需要填充细胞无法使用。

The film had high tensile strength, good fog drip performance, high transparency, good surface glossiness. The commodities packaged could show original characteristics and glamour, more beautiful. The film can keep freshness of food, prevent the loss in quantity, dry and taste mixing, and be safe and hygiene.

缠绕膜具有良好的回缩记忆及自粘性，能使货物紧裹成一个整体，防止运输进闪落倒塌及灰尘污染，并且该膜还具有优良的透明度和延伸性，能使包装物品美观大方，经济实用。

I did not so much as get my feet wet when the bridge fell, though it was a close shave.

我还没下水时，桥就倒塌了，真是千钧一发。

According to "Indian Express" reported that the collapse of the chimney is India's Bharat Aluminum Company of a 1,200 MW power plant projects under construction.

据《印度快报》报道，倒塌的烟囱是印度巴拉特铝业公司一座1200兆瓦发电厂的在建项目。

It has already battered the Caribbean islands of Aruba, Curasao and Bonaire. But only down trees and power outages have been reported.

在袭击了加勒比海的Aruba， Curasao和Bonaire之后(只有已经袭击的意思，没有时间先后的意思在，不能说&之后&)，只有树木倒塌和电力中断的报道。

I am Chief of Rescue in Trujillo.

我11岁时，我被陷在一幢倒塌的建筑物里。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！