基于灰色关联分析法的绿色施工评价研究

以建筑工程施工阶段绿色施工评价为出发点,结合当前国内建筑工程绿色施工的现场管理与技术水平,以及《绿色 建筑评价标准》《绿色施工导则》《建筑工程绿色施工评价标准》中的相关内容,分析绿色施工的影响因素并提出建筑工程 施工阶段的绿色施工评价指标体系。使用客观权重赋权法（熵权法）和主观权重赋权法（AHP）相结合的方法来确定因素组 合权重,运用灰色关联分析理论,建立基于灰色关联度分析法的绿色施工评价模型,以评选出具有较高绿色施工水平的施工 项目,并通过工程实例分析表明该绿色施工指标体系和评价模型的可操作性和可行性。     

梁柱铰接节点细部设计中的撬力验算

介绍了美国《钢结构设计规范容许应力法》第9版(AISC-ASD-9thEdition)中撬力验算在梁柱铰接节点细部设计中的应用。通过建立力学模型,进一步分析了撬力作用对高强螺栓抗剪承载力的影响及计算方法。     

Integrating design and construction through virtual prototyping

Construction Virtual Prototyping (CVP) is the use of integrated product, process and resource models of construction projects to support the construction planning in virtual environment. This paper describes an integrated framework and process for efficient application of CVP to support project teams on construction planning. It includes specific examples of models and objectives as well as detailed suggestions on how to implement CVP in practice.     

Zur Entwicklung der technisch‐wissenschaftlichen Gemeinschaftsarbeit des Deutschen Stahlbau‐Verbandes – Teil II (Fortsetzung aus Heft 10/2004 und Schluß)

On the history of technical/scientific co‐operation within the German Steel Construction Association – Part II. The role of steel construction in the reconstruction of Germany after World War II is illustrated using the example of bridge construction. Following the formation of a technical/scientific steel construction intelligence, which to a large extent was driven by DSTV, the establishment of steel construction science is described based on topics discussed at steel construction conferences between 1947 and 1966. At end of the 1960s, steel construction began to focus less on steel construction science. As a result, it losts its “centre of gravity” and started to move along “eccentric paths”. This historic development is summarised in the form of 12 propositions.     

“建业GZF-Ⅰ型”附着升降脚手架研制与应用

“建业GZF-Ⅰ型附着升降脚手架”是根据JGJ59-99《建筑施工安全检查标准》的有关规定,研制开发的一种新型附着升降脚手架体系,其防坠落和导向防倾斜装置都较传统方式有了改进,并已在工程中应用,效果良好。     

Developing a risk assessment model for PPP projects in China — A fuzzy synthetic evaluation approach

Earlier research works on PPP showed that an objective, reliable, and practical risk assessment model for PPP projects is essential to the successful implementation of PPP projects. However, actual empirical research studies in this research area are rather limited. This paper reports the second stage of a funded research study, which aims to develop a fuzzy synthetic evaluation model for assessing the risk level of a particular critical risk group (CRG) and the overall risk level associated with PPP projects in China. At the first research stage, thirty-four risk factors were identified through a comprehensive literature review and 3 new risk factors were proposed during a two-round Delphi questionnaire survey. The most critical 17 risk factors were selected through the calculation of normalized values. The correlation of these 17 critical risk factors (CRFs) was further analyzed via factor analysis and 6 CRGs were formulated, namely: (1) Macroeconomic Risk; (2) Construction and Operation Risk; (3) Government Maturity Risk; (4) Market Environment Risk; (5) Economic Viability Risk; and (6) Government Intervention. On the basis of the research works conducted at the first research stage, the weightings for each of the 17 critical risk factors (CRFs) and 6 CRGs were determined through the two-round Delphi questionnaire survey. A set of knowledge-based fuzzy inference rules was then established to set up the membership function for the 17 CRFs and 6 CRGs. The empirical research findings showed that the overall risk level of PPP highway projects is between “moderate risk” and “high risk”. Hence it could be construed that investment in PPP highway projects in China may be considered as risky. In fact, the Delphi survey respondents perceived that “Government Intervention” is the most CRG; with “Government Maturity Risk” being the second; “Economic Viability Risk” the third; “Market Environment Risk” the fourth; “Construction and Operation Risk” the fifth; and “Macroeconomic Risk” the last. These findings revealed that government intervention and corruption may be the major hurdles to the success of PPP highway projects in China. These may be caused by inadequate law and supervision system and poor public decision-making process. Although the fuzzy synthetic evaluation model was primarily developed for PPP projects in general, the research method could be replicated in a specific type of PPP project, such as water treatment projects and hospital projects, to produce similar models for inter-type comparisons. By doing so, it provides an opportunity for practitioners to assess the risk level of different types of PPP projects based on objective evidence rather than subjective judgment. The most CRG for different types of PPP projects could be identified and both precautionary and remedial actions could be taken as soon as possible. Such an extension would provide a deeper understanding of managing different types of PPP projects.     

Stahl im Hochbau – ein nachhaltiger Werkstoff?

Steel for building constructions – a sustainable material? Since the Brundtland Report [12] “Our Common Future” 1985 and the Earth Summit of Rio 1992 “Sustainable Development” is omnipresent in our society: “Sustainable development is a development that meets the needs of the present without compromising the ability of future generations to meet their own needs“. The transmission of this concept into the building sector is called “Sustainable Construction“. Sustainable construction means to design and construct buildings with a holistic approach considering ecological, economical and sociocultural aspects ‐ a paradigm shift for the entire building sector. The “Austrian Steel Association” has commissioned the first mentioned author to point out in a pre‐feasibility study a SWOT‐analysis (strengths, weaknesses, opportunities and threats) of steel for constructions as well as to identify a future call for action for the steel construction industry. Three office buildings with load bearings systems made of steel, timber and reinforced concrete were compared. For the ecological assessment a life cycle analysis (LCA) on the basis of the ÖNORM EN ISO 14040 [25] was undertaken. Recycling or dismantling can not be depicted by life cycle assessments based on recent ISO draft standards. Within this work the ecological datasets for EAF‐steel (electric arc furnace) could be substantially improved.     

Der Deutsche Ausschuß für Stahlbau DASt

The “Deutsche Ausschuß für Stahlbau DASt” (The German Committee for Steel Construction). The Deutsche Ausschuß für Stahlbau DASt is a registered association with the objective to advance and to promote technical progress in the field of steel construction. DASt will be 100 years old in 2008. The members of DASt are representatives of authorities, of the steel construction industry, of science, of industrial branches associated with steel construction, of the Normenausschuß Bauwesen (NABau) [Standard Committee ‘Building’] within DIN and of engineering consultant's offices. Since 1976 DASt has been the steering committee of the NABau sector 08 “Steel construction, composite construction, aluminium construction”. Based on scientific examinations the activities in DASt have impressively advanced within a few decades the state of the art in the field of metal and composite construction with the result that today highly developed construction materials and design methods can be used and applied in a safe and economic way, and ensure appreciable market shares for metal construction. More than in the past DASt is called on also in future to create jointly with the construction industry the scientific‐technical basis for developing innovative products and methods with a favourable price/performance ratio until they can be brought on the market.     

贴近市场 服务企业 大有作为——黄卫副部长寄语《建筑》杂志

为了更好地为建筑行业和建筑企业服务,2006年1月,《建筑》杂志将改为半月刊。在下半月刊紧张筹备之际,黄卫副部长认真听取了试办情况报告,予以亲切勉励,对《建筑》杂志的工作和发展提出了重要的指导性意见。《建筑》杂志在宣传贯彻建设部的大政方针,服务建筑行业和建筑企业方面     

解析建筑工程招标用最低价中标的策略

近些年来,建筑市场迅速发展,建筑工程在招标中普遍采用了“最低价中标法”。但是在具体实施中,一些问题凸显出来,给工程招标带来了诸多的不便。本文针对有关问题进行了分析,并提出了行之有效的建筑工程招标用最低价中标的策略。     

Integrated visualized time control system for repetitive construction projects

Construction control is an essential management function for successful delivery and achieving of construction projects’ goals. Considerable research efforts have been done regarding project control. However, literature suffers from a lack of visualizing the controlling process. With the growth of using visualization techniques in construction, Building Information Modeling (BIM) and Geographic Information System (GIS) have recently attained a widespread contribution in visualization of construction progress. BIM is a process of creating virtual models data that represents building facilities. In this research, BIM represents a platform for nD (n-Dimensional) visualization of construction progress. The advantages of this paper stems from three main contributions for construction projects control: 1) developing of a mathematical model for time control of repetitive construction projects; 2) an automated system to dynamically integrate project progress with BIM technique; and 3) a GIS-based tool to visualize the progress of distributed sites. The developed model provides abundant information to help decision makers take the appropriate corrective actions. An example application is presented to demonstrate the applicability of the developed system.     

Zur Entwicklung der technisch‐wissenschaftlichen Gemeinschaftsarbeit des Deutschen Stahlbau‐Verbandes – Teil I

On the history of technical/scientific co‐operation within the German Steel Construction Association – Part I. Technical/scientific co‐operation within the German Steel Construction Association (DSTV) between 1904 and 1945 is described using the problem of member buckling as an example. Euler's buckling theory in extended form was brilliantly confirmed during the 1920s in buckling tests carried out by the “Ausschuß für Versuche im Eisenbau” (committee for tests of steel construction), which were largely funded by DSTV and scientifically accompanied by Hermann Zimmermann (1845–1935). Early on, structural engineer Gottwalt Schaper (1873–1942) entered the inner circle of technical/scientific co‐operation at DSTV and gave the work significant impetus. Examples are the harmonisation of steel construction regulations, the introduction of higher‐strength steels (St 48, St 52), the application of welding techniques in steel construction, and the establishment of the German committee for steel construction (DASt). A practical theory of steel compression members that also satisfactorily covered the non‐elastic range began to develop in Austria and in Czechoslovakia. It was further developed in the 1930s by Ernst Chwalla (1901–1960), Friedrich Hartmann (1876–1945) and Karl Ježek (1903–1975). With the “Anschluß” of Austria and the break‐up of Czechoslovakia by the Third Reich, this research work shaped the development of DIN 4114. Welding, higher‐strength steels, theory of stability and the transition from member theory to continuum theory were the main topics of steel construction science, which began to emerge towards the end of the 1930s. Its programme was formulated in 1947 at the DSTV steel construction conference at Hanover by Kurt Klöppel (1901–1985), former director of the technical/scientific section of DSTV and a disciple of Reinhold Krohn (1852–1932).     

《宁波市联合测绘成果数据规范(暂行)》的编制特点

宁波市建设工程“联合测绘”的推行改变了建设工程测绘中介服务市场的垄断局面,测绘行业亟需一套统一的成果数据标准来规范联合测绘行为,实现联合测绘成果共享互认,保障建设工程项目行政审批工作顺利进行。论述了《宁波市联合测绘成果数据规范(暂行)》的编写原则和依据、编制思路、结构及其特点。     

型钢混凝土梁柱节点的研究现状

分析了当前较常用型钢混凝土梁柱节点的构造形式、受力性能和影响因素。根据已有的节点试验资料 ,对国内关于节点抗剪承载力计算公式———特别是《钢骨混凝土结构设计规程》(YB 90 82 - 97)和《型钢混凝土组合结构技术规程》(JGJ 138- 2 0 0 1)规定的计算公式进行分析比较 ,进而指出了我国型钢混凝土梁柱节点研究中的不足。     

“Produktionsverfahren im Stahlbau” – online – Lehrveranstaltung via Internet – ein Versuch

“Production processes in steel construction” – online. Teaching via internet – an attempt. At TU Darmstadt the course “Production Processes in Steel Construction” is offered for resident students and via internet since two years. This enables external students to participate without being personally in Darmstadt. This was possible without a great burden on the existing course and the lecturer. In this we see an enhancement of the traditional curriculum. In times of reduced budgets this allows to offer courses which might not be presented with a reduced staff. This might be the basis for an inter‐university network of lectures and courses that can be created and offered for the benefit of the students. This paper describes the specific features that had to be regarded for the development of the project in the World Wide Web. Results of the evaluation and of the examinations are also given.     

公路工程新旧估算指标对比研究

通过选取近年来不同地区的9个工程项目,用新颁布实施的《公路工程建设项目投资估算编制办法》(JTG 3820-2018)及《公路工程估算指标》(JTG/T 3821-2018)编制投资估算,对比分析新旧估算的造价差异。研究结果表明:桥隧比较高的项目,建安费的增减幅度也较大,反之新旧估算的变化幅度较小;新估算建安费中人工消耗量和多数主要机械的台班消耗量都比旧估算大幅降低,且新估算的费率费用也比旧估算的费率费用下降较大;新估算中工程建设其他费用普遍降低,且降幅较大。     

《钢结构工程施工规范》编制与介绍

编制中的《钢结构工程施工规范》是我国第一批建筑施工技术类国家标准.目前正值我国钢结构行业高速发展期,国内施工方面的规范和标准主要为质量验收类,施工工艺和施工技术方面的规范甚少.针对具体情况,本标准纳入了钢结构工程施工中成熟的新技术和新工艺,发布后可以作为施工单位技术指导性文件.重点介绍了标准编制的背景、编制过程及主要内容.     

浅谈水泥稳定碎石施工的质量控制

本文结合目前水泥稳定碎石的市场应用,根据JTJ034-2000公路路面基层施工技术规范,总结出水泥稳定碎石基层施工的质量控制要点。     

基于层次分析法的建设工程质量指数构建与应用分析

为了探索建设工程质量定量评价方法,为建设工程质量管理工作提供依据和指导.本文根据德尔菲法构建了建设工程质量指数层次结构,建立了基于层次分析法的建设工程质量指数计算模型,研究成果通过在上海市不同区县的实际应用验证了质量指数能够量化、动态表述工程质量状况,可对已建和在建工程做出基本的评价、判断;也可对在建和将建工程质量管理...