Whole-Process Project Cost Management Based on Building Information Modeling (BIM)

The whole-process project cost management based on building information modeling(BIM)is a new management method,aiming to realize the comprehensive optimization and improvement of project cost management through the application of BIM technology.This paper summarizes and analyzes the whole-process project cost management based on BIM,aiming to explore its application and development prospects in the construction industry.Firstly,this paper introduces the role and advantages of BIM technology in engineering cost management,including information integration,data sharing,and collaborative work.Secondly,the paper analyzes the key technologies and methods of the whole-process project cost management based on BIM,including model construction,data management,and cost control.In addition,the paper also discusses the challenges and limitations of the whole-process BIM project cost management,such as the inconsistency of technical standards,personnel training,and consciousness change.Finally,the paper summarizes the advantages and development prospects of the whole-process project cost management based on BIM and puts forward the direction and suggestions for future research.Through the research of this paper,it can provide a reference for construction cost management and promote innovation and development in the construction industry.

Analysis of Budget and Cost Control of New Green Building Projects

With the increment of public awareness toward ecological environment protection,green building has gradually become an integral part of construction development.Green building refers to a form of architecture that conforms to the current social development form and meets the requisites of energy conservation and environmental protection.The budget and cost control of green building construction project play very important roles in improving the quality of the construction and reducing the cost of the project.This paper mainly analyzes the problems and control measures in the new green building engineering budget and cost control.

Building the Three Gorges Project for the Chinese Nation—An Interview with General Manager Lu Youmei, China Yangtze River Three Gorges Project Development Corporation

The Yangtze River has nurtured the fertile land on both its banks and hundreds of millions of Chinese people. but its raging waters have also wreaked havoc on the people living in its reaches. Since the founding of New China, large-scale surveys, planning, scientific research and feasibility studies have been carried out in an effort to harness the

Inter-Organizational Conflict (IOC) in Building Refurbishment Projects;an Exploratory Factor Analysis (EFA) approach

Over the past years,there has been an expanding intrigued in building refurbishment projects because of the alter in financial conditions and the accentuation on sustainable development.Increasing demand for building refurbishment projects will lead to an increase in organizational interactions in the construction works as building refurbishment works involve interactions among many different organizations and it can cause Inter-Organizational conflict(IOC)among organizations involved in projects.This paper adopted an Exploratory Factor Analysis(EFA)approach to analyses IOC in building refurbishment projects.For this study,a fivepoint Likert Scale was adopted to ensure the instruments of the study are reliable.The researcher ultimately sent questionnaires as a web-link and email invitation to 1050 construction firms and 733 architectural firms.The questionnaire sent to managers and professionals from construction and architectural firms in Malaysia.Finally,one-hundred-seventy-nine(179)refurbishment projects formed a database for this paper.The finding of this paper shows the IOC factors that contribute to the improve the performance of building refurbishment project can be conflict during the construction stage,conflict between the client and the consultant,task expectations,basic responsibilities,final duration,project’s goals,conflict between the client and the contractor,final cost,final quality,standards of behaviors,conflict between the contractor and the consultant,interference and conflict during the design stage.

Impact of Risk on Performance of Design and Build Projects in Lagos State, Nigeria

＂Design and Build＂ procurement method has been in use in Nigeria and this method has been latent with a lot of risks. This study intends to identify the risk inherent in ＂Design and Build＂ and also to evaluate the impact of the identified risks on project performance. A descriptive research survey is undertaken for this study. Snowballing sampling technique was used via the use of questionnaires. Population of the study includes contracting organizations, consultants and clients＇ organizations that are recently involved in ＂Design and Build＂ projects. A total of 39 questionnaires were distributed and 27 were returned and used for the analysis. Statistical Package for Social Sciences was used for analyzing the data collected. Descriptive statistical tool of mean item score was employed for the analysis. The results show that the most prominent risk is change in quantity/scope of work in terms of cost related risk while in terms of time related risks the most prominent risk is design changes. Errors and omissions during construction are the risks prominent in terms of quality. In conclusion, ＂Design and Build＂ procurement has a lot of inherent, unresolved and undefined cost, time and quality related factors that can trigger off risks that will affect performance of DB project. Implications of this study to practitioners in the construction is such that the findings of this study can create awareness for stakeholders and construction practitioners of the prominent risks that affect DB projects and this can help in better management of future DB projects in Nigeria and other developing countries. Design and Build procurement in spite of these plethora of risks is still strongly recommended for clients, stakeholders and other practitioners in the construction industry for use in their future projects. This procurement method delivers project faster, within cost and offers good quality of workmanship and product to users of this method.

The Contributions of Building Information Modelling to Sustainable Construction

Global concerns toward environmental issues have induced growing demand for new approaches in the construction because of its considerable impact on the environment and use of natural resources. Through using construction sustainability tools, methods and techniques, a greener design can be applied during various building phases. In this connection, it is argued that the analytical and integrated models applied by Building Information Modelling (BIM) may also facilitate this process to be performed more efficiently. BIM and construction sustainability are quite different initiatives, but both have received much attention in recent years in the architecture, engineering and construction (AEC) industry. A rigorous analysis of the interactions between them implies that a synergy exists which, if properly it is understood that can be helpful to reduce the environmental impacts of the AEC industry. A BIM-based design model can contribute to sustainability through its three main dimensions which are environmental, economic and social. In this paper, by reviewing the existing literature on BIM and construction sustainability and using a matrix to analyze construction sustainability dimensions and BIM functionalities a number of interactions have been discussed. It can be concluded that despite there are many improvements in implementation of BIM in environmental and economic aspects of sustainability, its potential impact on social dimension has not been explicitly explored hence further studies need to be undertaken in this area.

Building-integrated renewable energy policy analysis in China

With the dramatic development of renewable energy all over the world,and for purpose of adjusting energy structure,the Ministry of Construction of China plans to promote the large scale application of renewable energy in buildings. In order to ensure the validity of policy-making,this work firstly exerts a method to do cost-benefit analysis for three kinds of technologies such as building-integrated solar hot water (BISHW) system,building-integrated photovoltaic (BIPV) technology and ground water heat pump (GWHP). Through selecting a representative city of every climate region,the analysis comes into different results for different climate regions in China and respectively different suggestion for policy-making. On the analysis basis,the Ministry of Construction (MOC) and the Ministry of Finance of China (MOF) united to start-up Building-integrated Renewable Energy Demonstration Projects (BIREDP) in 2006. In the demonstration projects,renewable energy takes place of traditional energy to supply the domestic hot water,electricity,air-conditioning and heating. Through carrying out the demonstration projects,renewable energy related market has been expanded. More and more relative companies and local governments take the opportunity to promote the large scale application of renewable energy in buildings.

Development of Human Resources for GEN （Generation） II1＋ New Build Projects

After a long period without new NPPs （nuclear power plants） being designed or constructed in Europe, new build projects have been prepared, planned and are now under construction. The majority of these projects involve a new design with an enhanced level of safety, called GEN （Generation） III＋. Although the serious events at the Japanese Fukushima Daiichi NPP caused by a tsunami led to a reduction in the number of new projects or even a phase out of nuclear power in some countries, only a slight reduction or delay of projects is expected globally. GEN III＋ new build projects give rise to several economical, technical, human resource and organizational challenges. The paper starts with a discussion of these challenges and presents several activities that have been started to deal with them. It focuses on the development of human resources, coordinated approach of operators and suppliers can lead to the needs-oriented human resources development. particularly with operators and suppliers of GEN III＋ NPPs. Only a successful execution of these projects. The focus must be on the

Demonstration of the Nearly Zero Energy Building Concept

Nearly zero energy buildings (nZEB) will become an obligatory energy efficiency standard in Europe. Following to common guidelines in European legislation, the countries investigated technical and economic framework for the preparation of detailed national technical definition of nZEB. Slovenia accepted the nZEB criteria in early 2015. This paper describes the technical and economic background for identification of economically viable concepts of highly energy efficient apartment building. The highrise demonstration building Eco Silver House revealed that meeting nZEB standards was not an easy task, not so much for technical reasons, but mostly due to the processes, inadequate skills, not fully compliant regulation and insufficient possibilities for interaction between the building and energy networks. Analysis of cost effectiveness showed that the Eco Silver House fulfilled minimal requirements of cost-optimal for apartment building with Net Present Value of 272 EUR/m2 and Primary energy use of 79 kWh/ m2?a in line with the Slovenian national cost optimal study of minimum energy performance requirements from the year 2014. At the time, the requirement of 50% share of renewables in final energy use is not fulfilled, but will be easily reached when EU2020 energy efficiency targets set in the Slovenian Energy Act regarding the RES share in district heating systems and public power grid will be gradually implemented. The demonstration project FP7 EE-HIGHRISE confirms that in spite of the barriers, the nZEB minimum requirements defined on profound theoretical studies can be met in practice.

Analysis of Causes of Delay in Middle and High Income Self-Build Housing Projects (SBHPs) in Wa, Ghana

Self-build housing projects (SBHPs) among middle and high income developers are faced with many challenges that cause delay in the delivery time of the house(s). The focus of this paper is to analyse the factors that cause delay in SBHPs in order to identify the critical delay factors. Review of literature and expert input revealed 20 variables which were used in a structured questionnaire for data collection from owners, consultants and builders in Wa Municipality. Reliability test, t-test analysis and mean ranking were used in the data analysis. The results revealed that “Delay in obtaining permit from Local Authorities” was the first delay factor followed by “Poor site management and supervision”. The delay factor ranked least was “Inadequate cost estimation and related details” from consultants. The paper recommends that Government agencies that regulate physical development should intensify public education, particularly on responsibilities and obligations, especially among self-builders. The paper recommends further study into labour-related issues as well as communication and information management among participants and its impact on self-build project success.

Building for the Future

ASCHELEW Tdsse, an Ethiopian construction contractor, is looking up at a new 20-story building with pride. The recently completed structure is now home base for the African Union （AU）. Tdsse has worked on its construction in Addis Ababa since 2009.

Comparison of Energy Consumption of the 12 Classroom Typical School Buildings in Selected 4 City in Turkey

School is a special place where students come together to become productive individuals of society,acquire basic skills and acquire citizenship knowledge.With the introduction of the new education system(4+4+4)in Turkey in 2012-2013,some difficulties occurred in the spatial structure of the schools.After the new system,increasing number of students and decreasing student requirements have been tried to be solved with temporary solutions.At the same time that millions of students studying in primary schools all over Turkey have the same architectural feature as one type of architectural school project,regardless of the geographical and social situation began to be implemented in all parts of the city.Therefore,the increase in consumption varies depending on the geographical reasons where the type projects are implemented.Selected regions of the four thermal zones in Turkey for this research are provided below:1^st Thermal district in Antalya;2^nd Thermal district in Bursa;3^rd Thermal district in Elaz??;4^th Thermal district in Kars.The calculation of the energy consumption created by the above cities by means of BEP-TR program and comparing classes.

基于Microsoft Project的建筑施工项目管理分析

在当前社会经济快速发展的情况下,建设工程数量不断增加,而传统的手工记录方式已经无法满足现代建设工程的需求。因此,采用先进的计算机技术来辅助建筑施工项目管理已成为当今建筑业发展的趋势。Microsoft Project作为一种专业的项目管理软件,具有良好的数据存储和可视化展示功能,可以有效地提高建筑施工项目的质量和效率。文章分析了如何利用Microsoft Project软件进行建筑施工项目管理,并对该方法的应用效果进行评估,以期为今后的建筑施工项目管理提供参考价值。

上海市某商业广场项目高效制冷系统改造工程实践

以上海市某商业广场项目高效制冷系统改造工程为例,介绍了该工程概况及高效制冷系统改造工程的全过程服务,从空调制冷系统现场勘测及检测评估、集成磁悬浮副冷站高效机房设计、主冷站高效制冷系统设计、高效制冷系统实施重难点解决方案、高效制冷系统的改造实效5个方面进行了详细说明。提出了既有大型商业高效制冷系统运行痛点和解决措施,系统性地归纳、总结了适用于改造工程的高效制冷系统的技术路径与实施建议。

多源干扰条件下暗挖工程穿越建筑物变形特征与控制研究

以北京地铁13A线天通苑东站扩能工程为依托,通过数值模拟研究了多源干扰条件下暗挖工程施工的邻域建筑物基础的变形规律与控制措施。研究结果表明:建筑物基础会向暗挖工程一侧产生倾斜,基础最大局部倾斜值为0.3‰;该工程中建筑物基础变形主要干扰条件为降水减压与暗挖隧道施工,其影响占比分别为73%、19%,次要干扰条件为竖井与横通道施工,其影响占比为8%。由此,控制措施为小深度降水减压(降至结构底板以下0~2 m)、增大暗挖隧道注浆厚度(宜选取为1.5~2.0 m厚度)。该措施能有效地控制建筑物基础的沉降。

装配式建筑套筒灌浆技术在房建工程施工中的应用

随着装配式建筑在房建工程中的广泛应用,套筒灌浆技术作为一种高效、可靠的钢筋连接方式,逐渐成为确保结构安全、提升施工质量和效率的关键技术。文章基于某住宅项目实例,通过介绍套筒灌浆技术的基本原理、技术特点,结合工程实例详细阐述了施工前准备、施工工艺操作及质量控制要点。研究表明,套筒灌浆技术具有连接强度高、施工方便、环保无污染等优点,能够有效提升装配式建筑的施工质量和效率。

绿色建筑项目管理模式及成本控制分析探讨

作为建筑未来发展趋势,绿色建筑有助于经济效益与环境效益相协调。文章研究了绿色建筑项目管理模式及成本控制方法,在掌握绿色建筑管控结构难点基础上,从项目设计阶段、施工组织管理、施工材料与施工技术三个方面出发,分析了绿色建筑项目管理模式构建方法。同时,强调了设计阶段精细化管理、动态成本控制、节能与能源管理、全寿命周期成本控制的绿色建筑项目成本控制路径,有助于转变传统建筑项目管理方式,合理控制成本,提高企业整体效益。

建筑扩建项目中的模板工程施工技术

本文选取某建筑扩建项目作为研究对象,分析模板工程施工技术的应用价值,提出模板可靠施工提升混凝土结构稳定性,帮助施工人员缩短工期的观点,并指出模板施工能够优化建筑资源配置。本研究也对扩建项目模板施工的关键技术做出说明,通过做好梁、楼板的施工与质量控制,采取合适的模板拆除措施,使得模板工程的质量达到满意标准,期望为建筑领域模板施工技术方案的科学选择提供参考。