砌体结构底层局部框架砖房抗震性能概念及试验分析

砌体结构底层局部框架砖房是底层空旷房屋的一种结构形式，为了解其抗震性能而进行的模型振动台模拟地震试验结果显示，模型房屋整体抗震力较差，震害集中在下部。提高此类房屋的整体抗震能力的关键在一层及二层，应通过适当增加底层刚度等措施提高房屋的抗震能力。     

底部两层框架—抗震墙砌体房屋震害分析

根据茂县3幢底部两层框架—抗震墙砌体房屋震害情况,总结出"上柔下刚"型底框房屋的震害特点,指出该类房屋底层框架部分抗震墙设置数量并非越多越好、刚度并非越大越好,在实际应用中应遵循GB 50011—2010建筑抗震设计规范的相关规定。     

底部框架抗震墙砖砌结构的震害特征综述

历次强烈地震中都存在大量底部框架抗震墙砌体房屋倒塌现象,破坏造成了巨大的人员伤亡和财产损失。通过查阅大量震害资料,对底部框架抗震墙砌体房屋的震害特征和震害原因进行简单综述,并为此类建筑结构进行抗震设计提供了依据。     

从汶川震害浅谈我省闽南农村地区砌体房屋结构的抗震能力

根据汶川地区砌体结构房屋的结构特点以及在震害中的破坏情况,对我省闽南农村地区砌体结构房屋的抗震能力进行分析。分析表明,目前我省闽南农村地区常见的砖石砌体房屋及底层构造柱（或局部框架）一多层砌体结构房屋的抗震能力较弱,很多砌体结构房屋都未采用抗震构造措施,存在巨大的安全隐患,应该加以警惕。     

浅谈底层框架砌体结构与抗震设计

通过5.12灾区震害的调查,在分析底部框架砌体结构房屋震害特点的基础上,对底部框架砌体结构房屋的抗震设计等问题进行了探讨。     

底层框架砖房的震害预测方法

随着城市建设的发展和人口密度的增大，地震对人类的危害变得越来越大，因此，做好建筑物震害预测工作，具有非常重要的现实意义，根据“合肥市防震减灾信息系统”中合肥市中市区底层框架砖房的抗震调查资料，用结构易损性分析方法对该类房屋未来震害情况进行了预测分析。     

7度区底部局部框架-砌体房屋抗震性能分析

我国7度抗震设防区中小城镇存在大量底部局部框架-砌体房屋,其底部局部RC框架+砌体抗震墙的布置形式不符合《建筑抗震设计规范》(GB 50011—2010)对7度区底部框架-抗震墙房屋的要求,考察其震害、刚度比及抗震性能有助于指导工程设计。分析了底部局部框架-砌体房屋的震害;设计了5个算例,包括2个底部局部框架-砌体房屋、1个砌体房屋及2个底部框架-RC抗震墙砌体房屋,对比分析了各算例在7度多遇地震下的弹性及罕遇地震下的弹塑性地震反应,考察了层间位移角、应变、耗能等指标。对比分析表明底部局部单排柱框架-砌体房屋,其刚度比、弹性及弹塑性地震反应与砌体房屋接近;底部局部双排柱框架-砌体房屋刚度比、弹性、弹塑性地震反应均大于砌体结构,但小于底部框架-RC抗震墙砌体房屋,其弹性、弹塑性地震反应均满足抗震规范中底部框架-抗震墙砌体房屋的相关设计要求。     

底部框架房屋抗震墙的简易计算

介绍了底部框架抗震墙房屋的抗震性能,提出了底层框架砖砌体抗震墙及底部二层框架混凝土抗震墙房屋的抗震墙数量的简易计算公式     

浅析底层框架砌体结构抗震设计

底层框架多层砌体房屋为上刚下柔的结构体系,历次地震中这类房屋都有遭受严重破坏和倒塌的实例,因此对其进行建筑物震害分析和概念设计尤为重要。本文对此种结构的强度、刚度、延性进行分析,并提出了增强其抗震性能的概念设计要点。     

底部框架房屋抗震墙的简易计算

介绍了底部框架抗震墙房屋的抗震性能，提出了底层框架砖砌体抗震墙及底部二层框架混凝土抗震墙房屋的抗震墙数量的简易计算公式。     

浅析高速公路工程招投标中的最低评标价法

结合目前高速公路施工项目招投标活动的实际情况,阐述了最低评标价法的概念,归纳了其优点及存在问题,对完善最低评标价法提出几点策略,以期促进招标投标市场更加规范有序。     

Place-Making in Megaprojects in Melbourne

This article analyses state-led place-making practices in Melbourne. The two levels of government that influence planning in Melbourne make much of the city as ‘culturally vibrant’ and ‘creative’, and have incorporated creative city-inspired place-making principles into many layers of the planning system. An examination of the development of two mixed-use megaprojects in central Melbourne reveals however that ideals of culturally engaging public places, and indeed of creative landscapes for middle-class consumption, wither in the face of more basic imperatives for economic development. In these case studies the ‘creative city’, no matter how the idea is interpreted, has little traction either as a set of inclusive place-making principles or as a gentrification strategy. The article concludes that the creative city-inspired place-making objectives in the planning system at both state and local levels are ambiguous in their overall intents and completely unsupported by statutory controls. Such place-making objectives as are realised are the compromised results of the interplay of uncoordinated decisions, delivered at the pleasure of the developer.     

Pathogens in septage in Vietnam

Septage is widely acknowledged as a major source of infectious pathogens while disposal of septage, and the operation and maintenance of septic tanks, is not regulated in many developing countries. Twenty untreated septage and septage sludge samples were taken from Can Tho City, Vietnam to examine their pathogen content, and indicator micro-organisms. Escherichia coli and Enterococcus spp. were detected in all samples, regardless of sludge storage time. Phages were detected in 80% of samples. Salmonella spp. were detected in 70% of the untreated septage and 60% of septage sludge samples. Concentrations of phages and bacteria tested in septage sludge after many years of tank storage were much higher than the expected levels. Helminth ova were present in 95% of untreated septage samples with an average of 450 ova l^− 1, and were detected in all septage sludge samples with an average of 16,000 ova l^− 1. Twelve varieties of helminth ova were identified. More helminth ova varieties in higher concentrations were found in septage than those reported from stool samples. The varieties' frequency ranged from 10% to 50% and Ascaris lumbricoides predominated. Results show that pathogens and indicator micro-organisms, especially helminth ova, accumulate in sludge. Thus helminth ova should be considered when septage sludge is treated and used for agriculture. Proper health protection measures must be applied for people handling septage.     

在市场中实践在实践中学习在学习中进步--工程公司市场化进程的回顾与展望

近两年来，工程公司在提高市场竞争意识、推动市场化进程中做了大量工作，其中坚持走出去的方针是我们自我加压、推行加快市场化步伐的一个重要战略步骤。     

新时期广东城市化的新特点

新时期广东城市化出现以下特点:知识源导向、城市由单体向群体化发展、产业集群推动、政府主导自上而下的集约化发展、城镇化向城市化转变、由重“数量”发展向重“质量”发展的转变。     

2005年北京办公物业市场七大趋势

趋势一:CBD区域写字楼集中放量从各区域规划方案上看,CBD区域多数项目在03～04年处于项目的报批手续及拆阶段,预计2005年正式推向市场,因此2005年CBD区域将成为北京市场供应集中的域,区域即将供应的项目有北京财富中心(二期)、金地国际花园、万达广场、SOHO尚都、万通中心、世纪财富中心、怡禾国际中心、光华国际等。除去未知项目,2005CBD写字楼办公面积的供应量为60万平方米左右。中关村区域经过一段时间的集中供后开始逐步放缓,2005年供应的体量相对较大的项目有中关村金融中心、新中关。金街区域可能开盘的项目只有2个:英蓝国际中…     

Developments in immersed tunnelling in Holland

Holland has 22 immersed tunnels (14 road, 5 rail and 3 utilities tunnels). Another three are under construction, and more are foreseen. The tunnels are of the concrete type, i.e., constructed without a steel shell. The paper describes developments in technology and in design philosophy since the first immersed tunnel was completed 52 years ago. These developments include, amongst others: the introduction of the Gina rubber gasket between elements; the division of elements into sections divided by flexible joints; the application (if possible) of longer elements (up to 268 m); the use of precast sections for tunnels that have a small cross-section; the omission of the watertight lining (made possible by cooling the concrete of the walls during the first days after pouring); various foundation methods (e.g., sand flow instead of sand jet system; piled foundations when necessary); the use of the excavation for the open ramps (or the part of the tunnel built on land) as a casting basin for the elements; the changed approach to casting basins now that well pumping is usually forbidden; and the transport of the elements across shallow locations and across the sea. It is emphasized that the current state of immersed tunnel technology is the result of a continuous international exchange of ideas and experiences.     

新形势下高校强化基建财务管理的探讨

在市场条件下高校基建财务人员在加强日常财务管理的同时,必须树立起高度的工作责任心,抓好事前监督、事中监督、事后监督三个环节,全面理解、贯彻执行《高等学校财务制度》,管好用好各项基本建设资金,提高基建财务管理水平,更好地完成高校各项基建任务,以有限的投资,最快的建设速度,获得最大的投资效益。