Purpose

Building information modeling (BIM) is vital in the performance improvement of contracting firms. Thus, there is a need to stimulate its implementation in the construction sector with a view to meeting the competitive demands of the industry. However, there have been very few studies on BIM implementation among contracting firms in Nigeria. Hence, this study aims to examine the current BIM uptake among Nigerian contracting firms, assess the barriers to BIM implementation and examine the ways of improving BIM implementation within these contracting firms.

Design/methodology/approach

A questionnaire survey was conducted on contracting firms (comprising small-, medium- and large-sized firms) in Lagos, Nigeria. The obtained data were analyzed using both descriptive and inferential statistics. These included percentage, mean score, standard deviation, the Kruskal–Wallis test and factor analysis.

Findings

This study revealed the current state of BIM implementation among contracting firms in Nigeria in terms of their knowledge of BIM, their usage of BIM as well as the BIM software adopted. Furthermore, the study identified 25 barriers to BIM implementation in contracting firms and identified 15 ways to improve BIM implementation in contracting firms. The relative importance of both the identified barriers and the ways for improving BIM implementation was gauged among contracting firms comprising small-, medium- and large-sized firms. The result of the Kruskal–Wallis test revealed that, except for two (out of 25) identified barriers, and one (out of 15) identified ways of improving BIM implementation in contracting firms, there is no significant statistical difference in the perceptions of the three respondents’ groups. The result of the factor analysis categorized the identified 25 barriers into seven main factors.

Practical implications

This study provides empirical evidence on the barriers to BIM implementation and the ways of improving its implementation among contracting firms, thereby providing a better insight of the Nigerian construction industry’s BIM environment.

Originality/value

This study’s findings can positively inform the decisions of construction stakeholders to formulate strategies capable of improving BIM implementation in the construction industry at large.

中文翻译：

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承包公司对BIM吸收的调查：尼日利亚的一项实证研究

目的

建筑信息模型（BIM）对于改善承包商公司的绩效至关重要。因此，有必要刺激其在建筑部门中的实施，以期满足该行业的竞争需求。但是，在尼日利亚的承包商公司中，关于BIM实施的研究很少。因此，本研究旨在研究尼日利亚签约公司目前对BIM的采用情况，评估实施BIM的障碍，并研究改善这些签约公司中BIM实施的方法。

设计/方法/方法

对尼日利亚拉各斯的承包公司（包括中小型和大型公司）进行了问卷调查。使用描述性统计数据和推论统计数据对获得的数据进行分析。这些包括百分比，平均分数，标准差，Kruskal–Wallis检验和因子分析。

发现

这项研究从尼日利亚的承包公司对BIM的了解，BIM的使用以及所采用的BIM软件的角度揭示了BIM实施的现状。此外，该研究确定了在签约公司中实施BIM的25个障碍，并确定了在签约公司中改进BIM实施的15种方法。在包括小型，中型和大型企业的承包公司中，对已确定的障碍和改善BIM实施方式的相对重要性进行了评估。Kruskal–Wallis检验的结果表明，除了发现（25个）中的两个障碍和发现（15个中的一个）改善承包商公司BIM实施方式的障碍外，对承包商的看法没有显着的统计差异。三个受访者小组。

实际影响

这项研究提供了关于BIM实施的障碍以及在承包商公司中改善BIM实施方式的经验证据，从而可以更好地了解尼日利亚建筑业的BIM环境。

创意/价值

这项研究的发现可以为建筑业利益相关者的决策提供积极依据，从而制定出能够改善整个建筑业中BIM实施的策略。