Measuring site-level success in brownfield redevelopments: a focus on sustainability and green building

This research has met the following four objectives within the broader research topic of characterizing and quantifying success in brownfield revitalization: (1) to define 40 total indicators that define and determine the success of brownfield redevelopments in four categories: environment-health, finance, livability, and social-economic; (2) to use these indicators to develop a partially automated tool that stakeholders in brownfield redevelopment may use to more easily assess and communicate success (or failures) in these projects; (3) to integrate "green" building as an important aspect of successful brownfield redevelopments; and (4) to develop this tool within the framework of a specific multi-attribute decision method (MADM), the analytical hierarchical process (AHP). Future research should include the operationalization and application of this tool to specific sites. Currently, no such indicator framework or automated tool is known to exist or be in use. Indicators were chosen because of their ability to reduce data into comprehensible measurements and to systematically measure success in a standardized fashion. Appropriate indicators were selected based on (1) interviews with prominent private developers and national leaders in brownfield redevelopment, (2) a review of the relevant literature, (3) objective hierarchies created in this project, and (4) the ability for each indicator to serve goals in more than one of the four categories described above. These were combined to form the Sustainable Brownfields Redevelopment (SBR) Tool. A survey was conducted to serve as a preliminary assessment and proposed methodology for judging the validity of the SBR Tool. Professionals in the academic, private, and public sector were asked to provide an evaluation of the management tool and a weighting of the relative importance of each indicator and each of the four categories listed previously. Experts rated the tool at 7.68 out of 10 suggesting that this framework will be useful in evaluating these redevelopments upon completion and in formulating initial site plans and building design.     

基于实测台风数据的超高层建筑非线性计算

基于从有限元模型导出的多自由度系统和实测台风数据，对深圳地王大厦进行了非线性数值模拟。比较研究了振幅相关阻尼与一系列常数阻尼对各种强度的台风激励下结构响应的影响。探讨了振幅相关阻尼的等效常数阻尼的存在性和特点，它与激励强度的关系和在脉动风平稳和非平稳条件下的特点，以及用它来进行超高层结构设计时可能会遇到的问题。     

汶川地震中房屋建筑震害特征及抗震设计思考

汶川5·12特大地震造成了为数众多的建筑物不同程度的损坏。地震发生后,四川大学随即组织了现场勘查队奔赴受灾最为严重的地区了解建筑物的受损情况。本文基于大量的现场勘查资料介绍了砌体结构、框架结构、底框或局部底框砌体结构及楼梯间的震害特点。在定性分析的基础上提出以下观点:合理设计和施工的砌体结构有可能获得良好的抗震性能;按现行规范设计的钢筋混凝土框架结构难以实现"强柱弱梁"的要求;填充墙对框架抗震性能有显著的影响;在地震区应慎用底框砌体结构;合理的结构布置和施工质量是结构获得良好抗震性能的前提;仅用延性系数来衡量结构抗震性能具有一定的片面性;楼梯间结构设计宜考虑地震作用的影响。     

沈阳商业城火灾及灾后修复

介绍了发生在沈阳商业城的火灾及灾后调查、检测和加固情况，从中得到一些有意义的看法。     

Advanced rescue techniques: lessons learned from the collapse of a building in Nairobi, Kenya

This paper examines the collapse of a five-storey building in Nairobi, Kenya, on 23 January 2006. It draws on reports from local authorities and on debriefings by Israel's Home Front Command (HFC), including information on injury distribution, rescue techniques, and the mode of operation. Most of the 117 people found under the structure were evacuated on the first day to a public hospital, which was overwhelmed by the incident. HFC forces arrived 23 hours after the disaster. At that stage, two people were still buried under the building and special techniques (tunnelling and scalping) were required to secure their evacuation. The two people quickly recovered after a short stay in hospital. Local technology is the preferred option during such events because time is crucial. International cooperation is required when this technology is not available. All of the hospitals in the disaster area, including private facilities, should participate in treating casualties.     

武汉城市圈节能建筑的处理方法及利用

从武汉城市图建筑节能的重要性及武汉市建筑节能的现状入手,指出为达到建筑节能50％的标准,武汉节能建筑处理方法应从建筑设计、建筑施工、节能技术开发应用及建筑节能管理等多方面下功夫．图8,参7．     

对现行民用建筑防火技术体系的分析与探讨

以"处方式"为主要特征的《建筑设计防火规范》、《高层民用建筑设计防火规范》等技术规范构成了我国现行民用建筑防火技术体系,其分类标准和技术体系尚需细化,诸多防火设计与建筑功能设计的矛盾仍无法得到有效解决.由于专家论证、性能化防火设计等途径尚未完善,因此细化建筑分类标准,完善防火技术手段,加快规范体系更新,仍是促进民用建筑防火技术体系不断完善成熟的有效途径.     

中国建筑火灾引起坍塌事故的统计与分析

为了研究火灾引起的建筑结构坍塌的机理,便于已有建筑的抗火防护和新建建筑的抗火设计,通过查询文献资料和新闻媒体报道,对我国建筑火灾坍塌事例进行了调查,对火灾坍塌建筑物的结构形式、层数和使用功能等方面进行了统计分析,列出了部分我国火灾史上1960-2005年所发生的火灾坍塌事例.调查结果显示,钢结构、特别是工业厂房钢屋架在火灾下较其他形式的建筑易发生坍塌;4～8层的民用建筑发生火灾坍塌的比例较高;工业厂房,仓库和商业建筑发生火灾坍塌的比例较高;民用建筑多发生局部坍塌;发生坍塌的建筑一般存在设计和施工不规范以及防火设施不合格等情况.     

内蒙古大兴安岭林区建筑物、构筑物防雷装置现状分析、研究与对策

本文从三方面阐述了雷电引起的灾害,提出了防雷的主要技术措施,并根据内蒙古大兴安岭林区近三年防雷装置安全检测结果,进行统计、分析、研究,针对内蒙古大兴安岭林区防雷装置的现状,提出了相应的对策。     

汇源大厦托换工程沉降监测分析

汇源大厦托换工程影响巨大，其由立柱拆除引起的沉降监测属高精度要求的大型建筑物变形测量，是托换工程实施的重要保障，结合对托换梁、柱的结构受力分析，分3层布设监测点、依工程进展状况制定合理的观测周期，并采取重点监测与验证相结合的原则，使用精密水准仪配加游标卡尺的特制标卡尺的的特制标尺，多台仪器同时观测等方法，及时反馈了梁柱变形动态，指导拆除及托换进程，保证了工程的顺利进行。