大块件桥梁钢箱梁免吊装快速施工技术

结合江阴市纺织文化创意产业园(中国裳岛)景观人行通道工程实例,较详细地介绍了桥梁钢箱梁免吊装施工方法,并制定了安装过程施工质量控制措施。该工程结构形式新颖,钢箱梁块件大,施工复杂、难度大。采用本施工方法不仅保证了工程施工质量,而且节约了工期,减少了吊装费用。     

快捷式索具在预制构件吊装中的应用

南通政务中心北侧停车综合楼项目,施工采用了预制装配混凝土框架结构形式,施工工期紧、质量要求高。在保证施工质量的前提下,构件吊装过程中采用了快捷式索具技术,通过合理设计和技术措施,有效地组织施工,快速、安全地完成了整个吊装过程。     

体育场悬挑大型钢结构网架吊装施工技术

安庆市体育中心体育场的钢结构工程体型大、质量大、形状复杂、安装精度要求高,吊装就位过程中的安全稳固措施难度大。针对上述特点,对钢结构吊装施工进行深入研究,总结出钢结构吊装的关键技术,确保了施工质量完全满足设计及验收标准的要求,可为类似工程提供借鉴。     

超高层钢结构超重构件的几种吊装方法

北京电视中心综合业务楼是目前北京市最高的纯钢结构建筑，其安装工程量大，结构形式复杂，施工质量要求高，构件吊装难度大，尤其是部分超重构件的吊装存在很大难度，由于采用了多种吊装方法，满足了施工进度及施工质量的要求。     

螺栓球节点网架吊装施工在火车站改扩建工程中的应用

武昌火车站改扩建工程工期紧,对质量、环保要求高,且基础站台车流量大,同时有其他施工,传统网架安装方法将对基础站台原有正常秩序引起干扰.采用螺栓球节点网架吊装施工技术可以有效解决上述矛盾.通过对该技术的网架单元和施工工艺的介绍,阐述了现场施工的整个流程,以及网架吊装过程中的质量控制、安全措施和环保措施的要点.实践证明,螺栓球节点网架吊装施工具有较好的综合效益.     

浅谈高层建筑中钢管混凝土柱的施工技术

中驰国贸大厦为高层钢框架一核心筒结构。外围柱为钢管混凝土柱,柱高168m,垂直度控制要求高,为了满足其特殊的施工要求.在整个施工过程中重点把握钢管吊装、梁板支模、钢筋绑扎、混凝土浇筑等工序交叉同步施工和采取的质量控制措施,满足预定工期的要求和质量要求。     

地铁盾构机吊装技术优化分析

在地铁盾构施工过程中,盾构机吊装是极为重要的施工环节。由于盾构机和履带吊自重比较大,对履带吊性能、吊装场地要求高。文章以福州滨海快线盾构机吊装为背景,对吊装半径、履带吊吊装设备的选择、吊装场地冲切承载力进行了探讨。结果表明:盾构机吊装施工在满足可行性及安全性的前提下,控制了吊装施工的成本,可为类似工程提供借鉴。     

济南奥体中心体育场罩棚钢结构工程制作安装施工技术

济南奥体中心体育场屋盖采用柳叶形钢结构罩棚,钢构件运输距离远,精度要求高,高空焊接工作量大,其制作安装难度大.介绍了整个施工部署和施工流程,屋面桁架和侧面桁架采用分段拼装、四点吊装施工工艺,吊装完毕后,对结构支撑体系进行卸载.最后总结了质量控制措施,保证了施工安全性.     

椭圆形钢结构弧形钢梁分段吊装拼装技术

某会展中心建筑平面造型近似椭圆形,屋顶结构为近似椭圆体钢结构。通过介绍椭圆形钢结构弧形钢梁分段吊装拼装施工特点和难点,详细阐述了弧形钢梁分段吊装拼装施工流程、施工要点、质量控制措施与仿真分析结果。实践证明分段吊装拼装技术方法可靠,能够最大限度地减少对施工场地的要求,提高施工质量,减少机械吊装台班量与难度,节约施工成本。     

简述装配式钢筋混凝土单层工业厂房结构吊装

围绕装配式钢筋混凝土单层工业厂房结构吊装的施工实践,介绍了结构吊装的施工特点,对柱子的吊装、吊车梁的吊装、屋架及天窗架吊装、屋面板及其他构件吊装进行了详细阐述,并提出了构件吊装的质量要求.     

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。     

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。     

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…     

浅谈我国工程项目建设成本控制存在的问题

结合目前我国施工企业工程项目成本管理现状,对工程项目成本管理过程中存在的问题进行了较详细的分析,并提出了一些解决问题的办法,以做好项目成本控制工作,进而增强企业经济实力。     

Variation in property taxation in Tulsa

Conclusions It may be reasonably concluded from this study that the range of variation in these ratios of assessed to actual value are of a reasonable size for the great majority of cases. The frequency distribution of these sample ratios was not normal, however, as was assumed a process of this type would produce. On the other hand, the failure of the regression analysis to identify any significant variables which would explain these variations would tend to re-enforce the assumption that the fluctuations were indeed of a random nature.To sum it up in one paragraph, aside from a few extreme cases, the assessing process appears to give estimates which are more consistent than would be expected under the assumption that any errors would be of a random nature, but the regression analysis was unable to isolate any particular socioeconomic characteristics which would explain the variation which was present.Financial support for this research project was furnished by the University of Tulsa.