地下结构设计的荷载、模型、方法的确定

就地下结构设计中荷载的确定、计算模型的建立、计算方法的选取三个方面,介绍地下结构设计的要点。     

浅析高层建筑地下结构设计难点

随着城市的快速发展,高层建筑地下结构已向多层发展,其结构设计、施工及防水等日益成为建筑工程界关注的热点。地下结构设计难点繁多、意义重大,本文结合工程实例对地下结构设计中的难点进行了分析和总结,以供参考。     

地下室结构设计探析

目前城市土地资源日益紧缺,建筑及城市交通有逐渐向地下发展的趋势.然而,建筑由于其功能和结构本身的需要,大多设置了地下室.随着建筑层数的日益增高,地下结构已向多层发展,其结构设计、施工及防水等日益成为建筑工程界关注的热点.文章分析了地下室结构设计中的难点问题,并针对性提出了优化设计的方案.     

浅析框架梁、柱节点域抗剪超限的原理及解决方法

新版《建筑抗震设计规范》GB5001-2010,加强了框架结构节点核心区截面抗震验算,自其实施以来,在PKPM(2010版)软件抗震验算过程中,尤其是高抗震设防烈度区,出现梁、柱节点域抗剪超限的问题时有发生,本文将结合个人在实际工程中做结构设计时的计算实例,与大家分享经验,浅析梁柱节点域抗剪超限的原理及解决方法,主要内容包括框架梁、柱节点域抗剪超限的含义解读;《建筑抗震设计规范》中关于节点核心区组合的剪力设计值的计算原理;《混凝土结构设计规范》GB50010-2010,框架梁、柱节点核心区的受剪承载力验算;以及个人在中国石油内蒙古销售公司八拜油库改扩建项目,综合办公楼结构设计中框架梁柱节点域抗剪超限解决的计算实例。     

深基坑支护结构设计与施工中存在的问题

本文就深基坑支护结构设计与施工中存在的土压力计算参数、土压力计算图形、环梁内弯矩及深基坑支护结构设计的重要性认识等问题进行了探讨 ,并提出了自己的看法     

液压滑模技术在交通斜洞施工中的应用

滑模技术在水利水电工程中常用于大体积混凝土施工,在地下洞室混凝土衬砌很少涉及,特别是对于小断面地下洞室混凝土衬砌更是未曾采用。对于滑模这种先进的施工技术如何应用于小断面地下洞室混凝土衬砌,本文结合工程实际情况,对液压滑模系统的结构设计和施工方法进行了探讨和总结,为滑模技术在小断面地下洞室混凝土衬砌提供了实际经验。     

地下的“海、河、湖”

河、湖、海是地上水,地下也有水。地下水的总量有6000万立方千米之多,是大陆上河、湖水总量的200倍! 地下水主要来源于雨水和雪水,有些则由空气中的水蒸气和岩浆中的水蒸气冷却凝结而成。这些水渗入地下,便形成地下的“海、河、湖”。     

浅析高层建筑结构的抗震概念设计

在高层建筑结构设计中,由于地震作用的不确定性、计算假定与实际情况的差异等因素,单纯依靠理论计算很难有效控制结构的薄弱环节,难以保证结构的抗震功能,因此在结构设计中要重视结构的概念设计。本文阐述了概念设计的含义及抗震概念设计相应的要点。     

结构设计分析模型的合理采用探讨

简要介绍建设结构设计中的分析模型，计算方法，并结合实例进行讨论，提出了一些实用的简化方法供建筑结构设计参考。     

高层建筑计算结果的分析及处理

高层建筑应对计算的结果进行合理性、正确性的分析和判断，通过调整才能最终做为结构设计的依据。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.