我国首部《预应力钢结构技术规程》(CECS212∶2006)的进展

对我国《预应力钢结构技术规程》的编制过程、重要参数的取值方法进行介绍并针对各位专家、学者对“规程”征求意见稿提出的部分重要问题,进行总结和回复。     

Fire Safety Engineering Research and Technology Centre (FireSERT) University of Ulster: Recent Developments

The Institute of Fire Safety Engineering Research and Technology Centre (FireSERT) at the University of Ulster in Northern Ireland has been a major provider of higher technical fire safety education, fire related research and services to industry for over 20 years. Its internationally recognised research spans the fields of fire dynamics, structural fire engineering, human behaviour in fire and more recently fire (CFD) modelling. Since 1991, it has offered the only PG Dip/MSc Fire Safety Engineering programme in the United Kingdom. In September 2000 FireSERT was the recipient of a £5.7 m Joint Infrastructure Fund (JIF) Award to build new fire safety engineering laboratories on the University's Jordanstown campus. These new facilities unparallel in the University sector in the UK offer greater scope and depth to the FireSERT's research portfolios. The new facilities will be extensively used in support of FireSERT's suite of MSc Fire Safety Engineering and DPhil programmes. This paper presents a brief history of FireSERT and its achievements, together with an update on the new facility, current research themes, taught programmes, research opportunities and visions for the future.     

防超流量泄漏灶前阀的研发

论述了防超流量泄漏灶前阀的原理、阀门的设计及防超流量泄漏灶前阀系列产品的应用。     

北京欢乐谷聚能飞船圆环柱动力基础设计研究

游乐设施设备基础作为一种特种结构,在我国建筑行业相关标准中还没有给出其相应的规范和条文。在《游艺机与游乐设施安全》(GB8408—2000)中也没有明确设备基础的设计方法与安全储备。结合欢乐谷工程的混凝土圆环柱设计,针对上述问题开展研究与探讨,通过优化结构形式和合理选取安全储备系数,采用近似计算与有限元分析相结合的方法进行设计,较好地解决了上述问题,并对圆环柱在弯、剪、扭作用下的结构计算进行了探讨。     

人工挖孔桩施工技术探讨

通过对人工挖孔桩施工技术探讨,阐明了人工挖孔桩施工质量控制以及安全控制要点。     

安全工作在建筑行业中的作用

从安全与施工工期、技术、质量等的关系入手，分析了安全要素在施工中的地位，从而肯定了安全工作是建筑施工各要素的基础，以使建筑企业获得良好效益，平稳发展。     

榕江南河水上特大桥45m预应力混凝土T梁架设

榕江南河特大水上桥工程主航道采用后张法预应力混凝土45mT梁,单片梁高2 8m、宽1 865m、重达139t,有72片。第1片试验时加载20%,总重达166 8t,采用自制架桥机架设。     

酒店客房的电气设计

本文说明酒店客房设计有关电气消防安全、照明、VOD系统、背景音乐应该注意的几个问题。     

地铁明挖区间废水泵房破除改造方案研究

已投入运营的武汉地铁4号线明挖区间右线废水泵房侵入拟建5号线盾构区间限界,需对其进行破除改造。通过对1 m、3 m及5 m破除进尺长度时各施工工况进行数值模拟分析,获得不同破除进尺长度时各施工工况下明挖区间结构及土体变形情况。分析结果表明:采用5 m进尺长度的破除施工方案是可靠的、合理的;破除所引起的结构变形主要集中在4号线区间右线结构顶、底板,破除结构前应于紧邻破除区5.0 m范围内设置水平、垂直向临时钢管支撑。数值分析所得数据和结论不仅为破除改造时的支护体系设计提供依据,也可为类似工程提供有益的借鉴。     

An inverse solution of the lifetime-oriented design problem

This paper presents a new solution of the lifetime-oriented design problem. This solution is based on a point-to-point allocation between the space of the design parameters and the space of structural responses. Each point in the space of the design parameters defines a feasible or non-feasible design, and all feasible designs guarantee compliance with a predetermined lifetime. From the set of feasible designs, one or more designs may be selected with the aid of technical or economic criteria. The presented solution permits the consideration of non-statistical data uncertainty, thereby leading to an uncertain lifetime. Because of the unavoidable information deficit, for example incomplete data in practical problems, the application of non-statistical data uncertainty is more realistic than the application of stochastic data models. The selection of feasible design variants is based on methods of explorative data analysis.