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Extraction and Analysis of Construction Phase Risk Factors in High-rise Construction Project 高层建筑工程施工阶段风险因素提取与分析
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.090
Soo-Yong Kim, Sunghyun Kim, Jinkook Yang
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引用次数: 2
Impact Analysis of Economic Fluctuation of Saudi Arabia on Korean Overseas Construction Business 沙特阿拉伯经济波动对韩国海外建设事业的影响分析
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.039
Jae-Keun Jeon, Suk-won Lee, Jae-Jun Kim
Abstract : According to the order receipt report over the past 10 years the overseas construction business total trades were 54.05% and 68.09% done by the Middle East and other industrial facilities respectively. In the Middle East based on data collected in 2014 the country with most overseas construction business is Saudi Arabia with 34.10%, and the industrial facility occupies the larger share with 56%. Overseas construction business is suffering from a reduction in work orders in the Middle East because of the recent oil price reduction. At this point of view, it is necessary to consider economy fluctuation for the diversification of construction type and work orders. This study analyzed, focusing in Saudi Arabia how the economical fluctuations of nations of progress can affect overseas construction business’ trade orders. The analysis results demonstrated that most construction types depends on GDP, investment fund. Also industrial facility can be substituted with Architecture and civil engineering. This work is expected to be used as a basis for trade order amount maintenance and construction type diversification.
摘要:根据近10年的订单接收报告,海外建筑业务贸易总额中,中东和其他工业设施分别占54.05%和68.09%。根据2014年收集的数据,中东地区海外建筑业务最多的国家是沙特阿拉伯,占34.10%,工业设施所占份额较大,占56%。最近,由于国际油价下跌,中东地区的工程订单减少,海外建设企业受到了打击。从这个角度来看,施工类型和工单的多样化需要考虑经济波动。本研究以沙特阿拉伯为重点,分析了发展中国家的经济波动如何影响海外建筑企业的贸易订单。分析结果表明,大部分建设类型依赖于GDP、投资资金。工业设施也可以用建筑和土木工程代替。该工作有望作为贸易订单量维护和建筑类型多样化的基础。
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引用次数: 1
A Empirical Research for Subcontractor Selection Model in the International Construction Project 国际建设项目分包商选择模型的实证研究
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.118
Changjun Lee, Hochan Seok, Sangjun Lee, Woosik Jang, S. Han
Abstract : International construction market have quantitatively increased and have reached up to 700 Bil. US$ through active effort of construction firms and government. In spite of this increase, substantiality issue has been constantly disputed due to qualitative problems such as lack of capability and technical shortage. To overcome these problems, many methods in performing quantitative growth and qualitative substantiality of overseas construction are being researched which showed that selection of subcontractors in general contractor is regarded as a very important success factor. However, it is difficult to make a reasonable decision for selecting the subcontractors due to the lack of evaluation standards and reliability. This study proposes an improved evaluation system through adjustment of the evaluation indicators using correlations analysis and multiple regression analysis with pre-qualification and performance evaluation of 121 firms in 6 countries. Keywords : Subcontractor, Pre-qualification, Performance Evaluation, Correlation Analysis, Multiple Regression Analysis
[摘要]国际建筑市场规模不断扩大,已达7000亿美元。通过建筑公司和政府的积极努力。尽管数量有所增加,但由于能力不足、技术不足等质量问题,实体性问题一直存在争议。为了克服这些问题,人们研究了许多实现海外工程数量增长和质量充实的方法,表明总承包商中分包商的选择是一个非常重要的成功因素。然而,由于缺乏评价标准和可靠性,难以对分包商的选择做出合理的决策。本研究通过对6个国家121家企业的资格预审和绩效评价进行相关性分析和多元回归分析,对评价指标进行调整,提出了完善的评价体系。关键词:分包商,资格预审,绩效评价,相关分析,多元回归分析
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引用次数: 0
Interoperability Analysis for BIM software Based on User-defined Properties 基于自定义属性的BIM软件互操作性分析
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.099
Seunghee Kang, Jiwon Ha, Taehwan Ju, Youngsoo Jung
Abstract : The utilization of Building Information Modeling (BIM) has increased in order to enhance the integration of information for management and resources throughout the construction projects. Therefore, various BIM softwares have been used under open BIM environments in the building and plant construction industry. However, it has obstructive factors due to the lack of interoperability. In order to address this problem, this study conducted an interoperability analysis of BIM software focused on user-defined properties for enhanced function and efficiency. Result of the analysis shows that authoring tools have more interoperability problems than viewer tools and simulation tools have. In terms of interoperability, user-defined properties outperforms than those of system basic properties and logic data. Therefore, it was found that functional improvement and workload minimization in BIM can be attained by applying the GBS (an user-defined property for automatic manipulation of BIM proposed by Jung et al. 2013) that enables automatic link between geometric data and non-geometric data. In this respect, this study concludes that the application of user-defined property (e.g. GBS) can be an effective method for information integration throughout construction projects.
摘要:建筑信息模型(BIM)的应用越来越广泛,以增强整个建设项目管理和资源的信息整合。因此,在开放的BIM环境下,各种BIM软件在建筑和厂房建设行业中得到了应用。然而,由于缺乏互操作性,它存在阻碍因素。为了解决这一问题,本研究对BIM软件进行了互操作性分析,重点关注用户自定义属性,以增强功能和效率。分析结果表明,创作工具比查看工具和仿真工具存在更多的互操作性问题。在互操作性方面,用户自定义属性优于系统基本属性和逻辑数据。因此,我们发现通过应用GBS (Jung et al. 2013提出的用于自动操纵BIM的用户定义属性)可以实现几何数据和非几何数据之间的自动链接,可以实现BIM中的功能改进和工作量最小化。在这方面,本研究认为应用自定义属性(如GBS)可以成为贯穿整个建设项目的信息集成的有效方法。
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引用次数: 2
A Study on Performance Evaluation of Infrastructure Safety and Maintenance 基础设施安全维护绩效评价研究
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.080
Sanghyeok Kang, Seok-In Choi, Hwa-Young Kim, Jeong-Seok Lee
Abstract : Recently, the paradigm shift of new construction into efficient operation and maintenance of infrastructure is seen. Also, concerns about infrastructure safety, especially the aged infrastructure, are on the increase. This study evaluates the current status of infrastructure safety and maintenance using data from 1994 to 2014 in Facility Management System operated by Korea Infrastructure Safety Corporation. Also, a quantitative analysis of safety performance of infrastructure is conducted to find out the enhancement of infrastructure safety in Korea. It was found that safety of facilities in Korea have been enhanced for the past decades. Improvement of safety performance of facilities is attributed to periodic safety inspection and repair and reinforcement. The result of the study can be used as a basic material for efficient and effective facility maintenance policies and strategies. Keywords : Infrastructure Safety, Maintenance Performance, Inspection Index, Repair Index * Corresponding author: Lee, Jeongseok, Division of Institute of Infrastructure Safety Technology, KISTEC, gyeonggi-do, 10387, Korea. E-mail: archirus@kistec.or.krReceived September 22, 2015: revised February 26, 2016accepted March 3, 2016
摘要:近年来,新建筑的模式转变为基础设施的高效运营和维护。此外,对基础设施安全的担忧,特别是对老化基础设施的担忧也在增加。本研究利用韩国基础设施安全公社运营的设施管理系统1994年至2014年的数据,评估了基础设施安全和维护的现状。此外,还对基础设施的安全性能进行了定量分析,以找出韩国基础设施安全的提高情况。据调查,在过去的几十年里,韩国的设施安全性得到了提高。设施安全性能的改善归功于定期的安全检查、维修和加固。研究结果可作为制定高效、有效的设施维护政策和策略的基础材料。关键词:基础设施安全,维护性能,检查指数,维修指数*通讯作者:李正锡,韩国技术研究院基础设施安全技术研究所,京畿道,10387,韩国。邮箱:archirus@kistec.or.krReceived 2015年9月22日,2016年2月26日改稿,2016年3月3日录用
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引用次数: 2
Selection of an Optimal Conception Design for the Development of Noise-reduced System Aluminum Form 铝制降噪系统的优化设计方案选择
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.135
Jong Hyun Hong, D. Yeom, Young-Suk Kim
: In Korea, a series of noise-reduced aluminum forms are being recently used in apartment housing construction. However, their complicated and time-consuming work processes, and the noise which is still generated due to the inherent property of aluminum when especially installing and dismantling them have been pointed out as a problem to be certainly solved for increasing their practical use in construction sites. The primary objectives of this study are proposing an optimal conceptual design of a newly designed noise-reduced aluminum form and verifying the technical feasibility by conducting a working mock-up drive experiment. Thus, conventional noise-reduced aluminum forms have been analyzed and three conceptual designs of a newly noise-reduced aluminum forms have been deducted. AHP has been applied to a survey data collected by interviewing field experts. A trade-off analysis results have shown that ‘Noise-reduced System Aluminum Form with a Drop-down Floor Post and Adaptive Beam’ the highest weights of safety(0.52), work convenience(0.54) and thus selected. The suggested conceptual design in this study improved problems of conventional system aluminum forms. It is also expected that the suggested design will be used as a reliable guideline for the actual development of an aluminum form that ensures noise-reduce, work convenience and labor safety.
△在韩国,最近在公寓建筑中使用了一系列降低噪音的铝板。然而,由于铝材的固有特性,特别是在安装和拆卸铝材时仍会产生噪音,这是增加铝材在建筑工地实际应用中必须解决的问题。本研究的主要目标是提出一种新设计的降噪铝形式的最佳概念设计,并通过进行工作模型驱动实验来验证技术可行性。因此,分析了传统的降噪铝板,并推导了三种新型降噪铝板的概念设计。运用层次分析法对现场专家访谈收集的调查数据进行了分析。权衡分析结果表明,“降噪系统铝制形式与下拉式楼板柱和自适应梁”的安全性权重最高(0.52),工作方便(0.54),因此被选中。本研究建议的概念设计改善了传统系统铝形式的问题。同时,也希望本文提出的设计方案能够为实际开发降低噪音、工作方便、劳动安全的铝制模具提供可靠的指导。
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引用次数: 0
Deducting the Critical Enhancement Task of Green Remodeling based on IPA Method 基于IPA方法的绿色重塑关键增强任务推导
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.058
Y. Kwon, Doo-Won Hwang, Sung-hoo Jung, Ki-Seok Lee, Jong-Il Park, Yoon-Ki Choi
As issue of global environment, Korea government sets the specific goal to reduce CO2 emission by 26.9% in construction industry up to 2020. Korea government is encouraging Greenremodeling and progressing the pilot to establish the guideline and instruction. However, There is a lack of the study on establishing process, tasks of Greenremodeling, and Greenremodeling guidelines and instructions are also insufficient, so the vitalization of Greenremodeling is difficult. Therefore, the purpose of this study is deducting Greenremodeling process and the critical enhancement task of Greenremodeling. For that, deducting the Greenremodeling tasks through analyzing of previous research and taking counsel from experts, and drawing the critical enhancement tasks of Greenremodeling using IPA method. From now on, It is conducted in Greenremodeling business and expected to contribute Greenremodeling market.
作为全球环境问题,韩国政府制定了到2020年将建筑行业的二氧化碳排放量减少26.9%的具体目标。韩国政府正在鼓励绿色改造,并推进试点工作,以制定指导方针和指示。然而,缺乏对绿色改造的建立过程、任务的研究,也缺乏绿色改造的指导和指导,因此,绿色改造的激活是困难的。因此,本研究的目的是推导绿色重塑过程和绿色重塑的关键增强任务。为此,通过对前人研究的分析和专家的建议,推导出绿色重塑的任务,并利用IPA方法得出绿色重塑的关键增强任务。从现在开始,它将在绿色改造业务中进行,并有望为绿色改造市场做出贡献。
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引用次数: 1
A Probabilistic Risk-based Cost Estimation Model for Initial-Stage Decision Making on Apartment Remolding Projects 基于概率风险的公寓改造项目初期决策成本估算模型
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.070
Dong-gun Lee, H. Cha
: The current remodeling cost estimation process is not only dependent on the historical data of new building construction, but it also has a poor linkage with risk-based estimation approach. As such, there is a high risk of falling short of initial budget. To overcome this, a risk-based estimation approach is necessary by providing a probabilistic estimation in consideration of the potential risk factors in conducting the remodeling projects. In addition, the decision-making process should be linked with the risk-based estimation results in stead of intuitive and/or experience-based estimation. This study provides a probabilistic estimation process for residential remodeling projects by developing a detailed methodology in which a step-by-step approach can be achieved. The new proposed estimation approach can help in decision-making for remodeling projects in terms of whether to proceed or not, by effectively reflecting the potential risk factors in the early stage of the project. In addition, the study can enhance the reliability of the estimation results by developing a sustainable estimation process model where a risk-based evaluation can be accomplished by setting up the cost-risk relationship database structure.
当前的改造成本估算过程不仅依赖于新建建筑的历史数据,而且与基于风险的估算方法的关联性较差。因此,达不到初始预算的风险很高。为了克服这一点,基于风险的评估方法是必要的,它提供了一个概率评估,考虑到进行改造项目的潜在风险因素。此外,决策过程应与基于风险的估计结果相联系,而不是基于直觉和/或基于经验的估计。本研究通过开发一种详细的方法,逐步实现住宅改造项目的概率估计过程。新提出的评估方法可以通过有效地反映项目早期的潜在风险因素,帮助改造项目的决策是否进行。此外,通过建立可持续的评估过程模型,通过建立成本-风险关系数据库结构,实现基于风险的评估,从而提高评估结果的可靠性。
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引用次数: 2
The Study on the Sustainable Sharing Plans of Military Installations for a Civil Military Co-existence 军民共存的军事设施可持续共享方案研究
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.110
Young Jun Park, K. Son
Abstract : This paper shows procedure and strategies to improve military facilities and local residents’ welfare through a civil-military sustainable cooperation project. Military installations tend to impede urban developments, so that a few civil compliant have been often filed. Meanwhile, it is sometimes impossible to relocate military units due to their own unique purpose, even though they belong to core sites of civil developments, which are generally indispensible due to urban expansion, magnified road networks and so on. The solution to offset these conflicts between civil and military demands, which are associated with military units and urbanization surrounding them, is to establish sustainable strategies which enable both civil and military be beneficial. In this study, it is described, decision making procedure to make some facilities of a military unit be better as well as promote local residents’ welfare through securing high-quality sports facilities. Delphi-technique and Paired Comparison Method are used to collect civil and military opinions regarding sustainable agreements. As a case study, a civil military cooperation project between a military unit and a local government is introduced. With successful projects, it is expected that the better installations could lead positive images of a military unit, provide advanced athletic environments for both local residents and military personnels, and lessen defense cost to maintain them. Moreover, this project will go down as a paragon of civil military sustainable cooperation.
摘要:本文通过一个军民可持续合作项目,展示了改善军事设施和当地居民福利的程序和策略。军事设施往往会阻碍城市发展,因此经常会提出一些民事诉讼。与此同时,由于军事单位本身的特殊用途,有时不可能搬迁,即使它们属于民用开发的核心地点,由于城市扩张,道路网络扩大等原因,这些地方通常是必不可少的。抵消这些与军事单位及其周围城市化有关的民事和军事需求之间冲突的解决办法是建立可持续的战略,使民事和军事都能受益。在本研究中,描述了通过确保高质量的体育设施来改善军事单位某些设施并促进当地居民福利的决策过程。采用德尔菲技术和配对比较法收集有关可持续协议的民事和军事意见。以某军事单位与地方政府的军民合作项目为例进行了介绍。如果项目成功,可以树立军队的正面形象,为当地居民和军人提供先进的运动环境,还可以减少防卫费。此外,该项目将成为军民可持续合作的典范。
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引用次数: 2
A Study on Change order factor analysis for military facility projects 军事设施项目变更顺序因子分析研究
Pub Date : 2016-03-31 DOI: 10.6106/KJCEM.2016.17.2.127
W. Jung, Min-jae Lee
Abstract : Design modification is one of the elements that must be controlled in the process of any construction project. Especially a military facility project comes with more obstacles than private work due to the unique characteristics and closeness of the military. As there are both the project manager and the user within the ordering body, it is likely to have difficulties unless communication is conducted smoothly. The reason is that such issues regarding communication lead to design modification and it will result in the user's dissatisfaction. Thus this study aimed to identify the elements that generally cause design modification by analyzing characteristics of military projects from the status of current project contracts, analyzing past elements that lead to design modification and comprehensively researching responds from the survey on operators of facility projects. It is expected that loss from design modification of military facility projects is reduced by proposing feasible and practical improvements.
摘要:设计变更是任何建设项目实施过程中必须控制的要素之一。特别是军事设施工程,由于军队的特殊性和亲近性,比民间工程的障碍更大。由于订购主体中既有项目经理,也有用户,如果沟通不顺畅,很可能会出现困难。原因是这些关于沟通的问题会导致设计的修改,从而导致用户的不满意。因此,本研究旨在通过从当前项目合同的现状分析军事项目的特点,分析过去导致设计修改的因素,并综合研究对设施项目运营商的调查反应,找出普遍导致设计修改的因素。预期通过提出可行和实际的改进,可以减少军事设施项目设计修改的损失。
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引用次数: 1
期刊
Korean Journal of Construction Engineering and Management
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