加纳建筑工程的变化:公共组织视角

Benjamin Boahene Akomah, Zakari Mustapha, Justice William Mensah, Roland William Lawson
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引用次数: 0

摘要

[摘要]建筑施工合同变更的发生是公共部门工程建设中需要关注的问题。几乎所有时候,这些变异都是有害的,而不是有益的。本文旨在确定2000年至2014年间中部地区政府发起的建筑项目变化的性质及其影响。对文件的初步统计显示,在此期间共执行了348个项目。数据收集过程首先是整理文件、合同文件和所考虑的期间的付款证明。这些文件被一个接一个地仔细检查,以发现可能的变化。选择项目的纳入标准是项目是否记录了任何形式的变化。在对这348份项目文件进行彻底审查后,发现84份文件存在差异。研究发现,在中环公共建筑项目中,额外工程和替代工程是最固有的变化。在84个项目中发现的各种形式的变化中,约85%的变化是额外的工程和替代。结果表明,多种变化的成本高于单一变化的成本。具有多种变化的项目比其他项目具有更高的百分比变化和持续时间。在某些情况下,百分比变化是400%。该研究发现,多种变化比单一变化的成本更高。确定的最高变动成本为一个项目(211 864.41美元或183 150.18欧元)。这项研究确定了政府建筑项目中通常发生的变化的性质,以及它们与成本和时间的关系。该研究断言,多个变更订单的存在具有重大的财务意义,应该通过有效的项目启动和计划来努力避免。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Variations in Building Construction Projects in Ghana: A Public Organisational Perspective
Abstract The occurrence of variations in building construction contracts is a subject that needs some attention in public sector projects. They are, almost all the time, detrimental rather than beneficial variations. The paper aimed to identify the nature of variations in government-initiated building projects over fourteen years, from 2000 to 2014, in the Central Region and their impacts. Preliminary counts of documents revealed that a total of 348 projects were executed over the period. The data collection process started by first sorting out files, contract documents, and payment certificates for the period under consideration. These documents were scrutinised one after the other to detect possible variations. The inclusion criterion for selecting a project was if a project had any form of variation(s) recorded. After thoroughly examining these 348 project documents, 84 were found to have variations. The study identified additional works and substitutions as the most inherent variations in public building projects in the Central Region. About 85 % of the variations found in the 84 projects with various forms of variations were additional works and substitutions. It was revealed that the cost of multiple variations was higher than single variations. Projects with multiple variations had high percentage variation and durations than others. Percentage variation in some instances was 400 %. The study identified that multiple variations were more costly than single variations. The highest variation cost identified was (USD 211 864.41 or EUR 183 150.18) for one project. The study identified the nature of variations that usually occurred in government building projects and their association with both cost and time. The study asserts that the presence of multiple change orders has substantial financial significance and should be diligently avoided through efficient project initiation and planning.
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