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.

Integrating Virtual Reality and Energy Analysis with BIM to Optimize Window-to-Wall Ratio and Building’s Orientation for Age-in-Place Design at the Conceptual Stage

This study unfolds an innovative approach aiming to address the critical role of building design in global energy consumption, focusing on optimizing the Window-to-Wall Ratio (WWR), since buildings account for approximately 30% of total energy consumed worldwide. The greatest contributors to energy expenditure in buildings are internal artificial lighting and heating and cooling systems. The WWR, determined by the proportion of the building’s glazed area to its wall area, is a significant factor influencing energy efficiency and minimizing energy load. This study introduces the development of a semi-automated computer model designed to offer a real-time, interactive simulation environment, fostering improving communication and engagement between designers and owners. The said model serves to optimize both the WWR and building orientation to align with occupants’ needs and expectations, subsequently reducing annual energy consumption and enhancing the overall building energy performance. The integrated model incorporates Building Information Modeling (BIM), Virtual Reality (VR), and Energy Analysis tools deployed at the conceptual design stage, allowing for the amalgamation of owners’ inputs in the design process and facilitating the creation of more realistic and effective design strategies.

A Building Information Modeling-Life Cycle Cost Analysis Integrated Model to Enhance Decisions Related to the Selection of Construction Methods at the Conceptual Design Stage of Buildings

Life Cycle Cost Analysis (LCCA) provides a systematic approach to assess the total cost associated with owning, operating, and maintaining assets throughout their entire life. BIM empowers architects and designers to perform real-time evaluations to explore various design options. However, when integrated with LCCA, BIM provides a comprehensive economic perspective that helps stakeholders understand the long-term financial implications of design decisions. This study presents a methodology for developing a model that seamlessly integrates BIM and LCCA during the conceptual design stage of buildings. This integration allows for a comprehensive evaluation and analysis of the design process, ensuring that the development aligns with the principles of low carbon emissions by employing modular construction, 3D concrete printing methods, and different building design alternatives. The model considers the initial construction costs in addition to all the long-term operational, maintenance, and salvage values. It combines various tools and data through different modules, including energy analysis, Life Cycle Assessment (LCA), and Life Cycle Cost Analysis (LCCA) to execute a comprehensive assessment of the financial implications of a specific design option throughout the lifecycle of building projects. The development of the said model and its implementation involves the creation of a new plug-in for the BIM tool (i.e., Autodesk Revit) to enhance its functionalities and capabilities in forecasting the life-cycle costs of buildings in addition to generating associated cash flows, creating scenarios, and sensitivity analyses in an automatic manner. This model empowers designers to evaluate and justify their initial investments while designing and selecting potential construction methods for buildings, and enabling stakeholders to make informed decisions by assessing different design alternatives based on long-term financial considerations during the early stages of design.

Influence of Building Information Modelling (BIM) on Engineering Contract Management in Nairobi, Kenya

Building Information Modelling (BIM) is a technology and a process that has brought changes in the construction’s traditional procurement system. Kenya lacks contractual guidelines on implementation of BIM;this makes the adoption of BIM slow and difficult. Previous research has identified a gap in contractual relationships, roles and resulting risks. The objectives of this study were to investigate BIM adoption in Nairobi and to investigate the influence of BIM on Engineering Contract Management (ECM) in Nairobi Kenya. The survey research was a descriptive study with 175 responsive questionnaires. Respondents comprised of Civil Engineers, Construction Project Managers, Architects, Quantity Surveyors, Contractors and Facility Managers. Data was collected through self-administered questionnaire and in-depth interview. Descriptive analytics, correlation and Exploratory factor analysis methods were used to analyse quantitative data. Qualitative data was analysed thematically. It emerged that adoption level was at 56.6% and shallow understanding of BIM capabilities remains to be a barrier to its adoption and implementation. It also emerged that BIM improves ECM;when time, cost, quality, collaboration and return on investment improve, ECM becomes easier. Latent factors found in BIM and ECM relationship were Legal Implications, awareness and knowledge, efficiency, versatility, mandate and leadership, and competitiveness. Further, the study found out that BIM influence on ECM demands for establishment of standards, guidelines, policy, legal framework, and regulations, which can be achieved by amending the public procurement act which dictates the operation of all the other standard forms of contract. Further research should be conducted to measure whether the understanding of BIM had positively improved.

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.

Analysis of Thermal Behavior of Materials in the Building Envelope Using Building Information Modeling (BIM)—A Case Study Approach

Building envelope is a fence that controls heat exchange between interior and exterior and plays an essential role in providing thermal comfort conditions of residents. In recent years, due to the necessity of conserving energy and also preventing increased environmental pollution, the importance of sustainable construction has been doubled. Checking the problems of thermal behavior of the building envelope materials, and what influences in the heating and cooling loads exerted and energy consumption of buildings, are the questions that this research seeks to answer. In this regard, building information modelling analysis (BIM) has worthy contribution in the completion process of sustainable design;thus using software Design Builder, it is paid attention to simulation of the thermal behavior of two types of defined materials for the building envelope that was designed as a Research Institute of Renewable Energy of Yazd University. For Type 1 materials, two layers of brick have been selected, and for Type 2 a thermal insulation layer also added it. Results of the analysis showed that the use of materials Type 2 in the cooling load %4.8 and in the thermal load %62.5 reduction can be achieved which means reducing the load on active system and thus reducing the initial cost of building. Also reduction in annual energy consumption by almost %2.4 for cooling and %62.9 for heating buildings have been achieved, which makes saving non-renewable energy consumption, and consequently reducing environmental pollution as well as reducing current costs will be established.

基于BIM的公路工程标准化EBS分解方法

工程结构分解(EBS)是公路工程全寿命周期信息化管理的基础。为了提高公路工程建设期信息化水平,基于BIM技术应用,提出了公路工程标准化EBS分解方法。标准化分解方法根据工程中不同路段,梳理专业划分以及空间位置划分原则,并依据行业标准,确定标准化EBS结构的叶子节点,提供公路工程EBS结构树模板示例。研究结果旨在提高高速公路数字化交付中的数据处理标准建设,为实施公路工程数字化提供基础支持。

基于BIM技术的福州市连江县仁坂黄家祖厝建模研究

文章运用三维激光技术对福州市连江县仁坂黄家祖厝进行数据收集,对建筑要素进行系统性梳理,利用BIM技术的“族嵌套”方式构建“族”库以及可视化建筑信息模型。将BIM技术与福州古厝结合,为福州古厝保护研究工作提供了新的方式。仁坂黄家祖厝模型建立对福州其余古厝保护研究工作有着巨大的参考价值。

重型施工机械安拆吊装作业视觉可达性BIM仿真分析

为提高重型施工机械安拆吊装作业安全工效,改善安拆作业过程中人员的可视性,提出基于可视锥法的多主体视觉可达性建筑信息模型(BIM)仿真方法。首先,通过重型施工机械视觉任务分解,得到重型施工机械多主体视觉任务;其次,以wk-35型电铲安拆作业为研究对象,分析起重驾驶司机-信号工-司索工多主体视觉任务,运用计算机辅助三维交互应用(CATIA)人因仿真模块,构建安拆吊装作业多主体视觉的BIM仿真场景;然后,采用可视锥法,计算安拆吊装作业过程多主体视觉可达性量值,测度多主体视觉可达性水平,构建重型机械施工机械多主体视觉评价模型;最后,调节BIM模型的过程参数,推演多主体视觉变化趋势,评价安拆吊装作业多主体视觉可达性。结果表明:安拆作业中起重司机在起升下降过程中视觉可达性较差,在平移过程中视觉可达性较好;信号工和司索工的位置与其视觉可达性联系紧密,当信号工处于视野刚好覆盖起重司机和司索工的位置时,其视觉可达性最好,而司索工需不断调整位置,使其视觉可达性达到最佳。

基于BIM 5D的项目安全与质量协同管理研究

为解决项目质量和安全管理无法直观表达、提前预防、及时整改等问题,本研究将BIM技术引入项目安全与质量管理工作中,验证了基于BIM 5D的工程安全与质量协同管理的可行性。通过研究得出:通过“事前预防”的BIM技术(建立Revit模型、深化设计、施工模拟、可视化技术交底),将项目质量和安全问题提前暴露,减少返工造成的不必要麻烦,保证物资的有序进场和合理堆放,为安全文明施工提供基础;通过“事中控制”的BIM 5D+智慧工地决策系统,将质量、安全问题进行归集、分析,将分析结果以图表呈现,对关键问题进行预警,及时发现问题并整改。上述方法保证了项目安全,提升了工程质量,为施工企业应用BIM 5D提供了参考。

基于BIM的飞云楼结构古建筑遗产保护模型研究

飞云楼是一项具有深厚历史文化的古建筑遗产,其结构完整性的维护对文化传承至关重要。研究采用BIM技术监测和分析其结构健康状况,为古建筑的保护与维护提供新的方法。分析结果表明,监测桁架的日均变化率高达19.173%,异常监测值达到-43.16,榫卯连接处与地基的日均变化率分别为-15.902%与-20.041%,但异常监测值分别为-46.24与-23.08。对于梁与柱子,异常日均变化率分别为-1.792%与3.594%,梁的异常监测值为17.33,柱子为-51.09。屋顶的异常日均监测值为-62.73,是所有监测部位中最高的,表明屋顶承受的应力或损伤程度可能最为严重。由此可见,该模型为飞云楼的结构性问题提供了预警,指出维护和监控的重点区域,为制定针对性的维修策略提供了依据,同时为其他古建筑的结构健康监测提供了可行的参考。

面向全生命期贯通应用的BIM技术与管理需求

建筑信息模型(BIM)技术被提出时,存在一个“初心”,即BIM技术支撑包括规划、设计、施工、运行维护等各阶段的建筑工程全生命期跨阶段贯通应用。虽已经过20年,BIM技术在大量建筑工程中得到应用,但实现“初心”的应用仍然凤毛麟角,而且BIM应用发展当前遭遇瓶颈。为此,基于笔者研究和实践,提出突破瓶颈的关键,即实现面向全生命期贯通应用的BIM技术与管理突破。为此,从技术和管理层面系统分析相应需求,包括技术标准、应用软件、管理标准突破,并阐述其可行性,为我国BIM技术进一步发展和应用提供助力。

BIM技术的创新发展与大场景应用

BIM技术的广泛应用推动了建筑业从“数字化”到“可视化”的转变,显著提高了设计与施工的效率和质量。然而,国外BIM软件存在水土不服、迭代困难、信息安全等问题。我国自主研发的C⁃BIMBase平台以BIM模型为核心,具备高效的大场景建模能力和自主可控的技术特点,为BIM核心软件提供了国产化替代方案,确保了重要工程的数字安全,促进建筑业数字化水平提升。通过建立国产化的IFC标准体系,实现国外软件的国产化替代,国产BIM软件在大场景应用中展现出显著优势。展望未来,应加快推进国产化BIM软件及平台替代,开发自主知识产权的仿真求解器,掌握关键核心技术自主权。通过在大场景工程中的广泛应用和迭代升级,我国BIM技术有望实现从跟跑到领跑的转变,为建筑行业数字化转型和高质量发展做出贡献。

基于BIM技术的绿色建筑碳排放计算模型构建及应用

在全球气候变化与可持续发展的双重挑战下,建筑行业作为主要的碳排放贡献者,急需积极寻求创新与高效的碳管理策略。在此背景下,本文探讨了基于BIM(建筑信息模型)技术的绿色建筑碳排放计算模型的构建与实际应用,推动建筑项目从设计到拆除全过程的碳排放减少。文章首先针对BIM技术的核心功能及其在计算建筑碳排放方面的关键作用进行了深入分析与探讨,随后围绕基于BIM技术的碳排放计算模型的构建过程,明确了有效的数据收集、整合策略及模型验证、校正方法,最终探索了该模型在不同建筑生命周期阶段的具体应用与优化措施,为实现建筑行业的低碳与可持续发展提供了有力工具与理论支持。

化工厂区建筑全生命周期碳平衡BIM控制模型仿真

为了更准确评估化工厂生产工艺中化学反应产生的碳排放平衡,提出了化工厂区建筑全生命周期碳平衡BIM模型仿真方法。使用AutoDesk Revit BIM软件,构建化工厂范围及建筑的BIM模型,计算碳化吸收、生物燃料碳排放回收、回收阶段碳吸收,获取建筑全生命周期碳吸收量总和。将计算结果输入BIM模型中,设计数据加工过程,计算碳排放总量与碳吸收总量差值,以此为输入数据构建碳平衡BIM模型,实现碳平衡控制。通过仿真实验可知,使用所研究方法除了在3~5月内碳排放量等于碳吸收量外,其余时间碳排放量均小于碳吸收量,所有时间内化工厂区建筑全生命周期均处于碳平衡状态,具有较强碳平衡效果。

亭子口灌区一期工程第Ⅳ标段BIM正向设计优化与应用

灌区工程线路长、范围广、渠系建筑物众多,随着BIM技术在工程建设领域应用越来越广,在灌区设计中利用BIM进行三维正向设计与优化,有助于提高灌区设计质量,提升灌区整体管理水平。结合亭子口灌区一期工程第Ⅳ标段,介绍了利用水工建筑物三维参数化正向设计、BIM技术进行隧洞进出口三维开挖正向设计、深挖方暗渠优化设计、主支洞交叉段三维正向设计、BIM模型在运维阶段的应用等应用点,为类似工程设计提供了经验。

基于BIM技术的装配式建筑建设项目安全风险管理及优化

针对传统的装配式建筑管理中存在管理水平粗糙、精细化程度低等问题,研究运用BIM及相关信息技术建立基于BIM相关信息技术的建设项目安全风险管理平台,并设计建筑项目对比实验。研究结果显示未使用BIM技术进行安全管理的3#装配式建筑安全等级为三级,综合确定度为0.65325,而使用BIM技术进行安全管理的5#装配式建筑安全等级为四级,综合确定度为0.7190。综上所述BIM技术能实现装配式建筑建设项目的安全管理的优化,减少施工工程中的事故风险,保障人员的生命安全和财产安全。

BIM下的高层建筑平面凹凸不规则识别方法

在高层建筑平面审查过程中,主要通过基于ResNET(残差学习网络)的图片分类模型进行平面凹凸不规则识别,存在数据样本不均衡的问题,使得最终识别结果曲线下面积(AUC)值较低。针对此类问题,提出建筑信息模型(BIM)下的高层建筑平面凹凸不规则识别方法。利用布尔交运算方法,分析高层BIM模型中所有结合对象之间的关系,获取建筑平面信息。通过无人机搭载图像采集系统获取建筑实景图像,并应用多尺度局部直方图均衡化算法实现图像增强。建立以最大类间方差法为基础的图像分割方案,结合多策略融合未来搜索算法确定最优分割阈值,得到高层建筑图像目标前景区域。最后,运用深度学习网络构建基于潜在特征空间的图片异常检测模型,将分割后图像输入训练好的模型中自动学习,即可得到建筑平面凹凸不规则识别结果。实验结果表明:该方法识别结果的AUC值为0.9,更符合高层建筑平面审查工程的要求。

基于BIM的公路边坡可视化管理方法研究

山地、丘陵地区的公路建设和运营中常伴有大量边坡,边坡的灾害问题已成为制约我国公路、铁路建设与运营发展的主要因素。目前,主流边坡信息化管理系统在信息集成领域存在缺陷,难以满足对各类复杂边坡科学监测与精细化管理的需求。为此,将BIM可视化技术引入到边坡监测与管理中,利用可视化模型“所见即所得”的优势与强大的数据集成能力改善沟通环境、提高管理效率。首先,通过地质钻孔数据解译结合地层层序优化逻辑确定地层层序、地层边界与分布范围,利用Dynamo节点开发基于钻孔数据的自动化建模程序,提出基于Revit+Dynamo的边坡地质BIM精细化建模方法。然后,提出联合OBJ-JSON格式储存模型关键属性信息的边坡模型轻量化导出方案,实现模型与地质信息的集成以及大体量边坡地质模型与Web的端互通,基于Three.js框架扩展WebGL原生代码优化BIM模型并开发了边坡BIM模型的Web端交互应用。最后,全方位分析涵盖项目全生命周期管理的内需并借助MySQL数据库技术将上述成果进行整合,开发了基于BIM的高速公路边坡的可视化监测管理平台并运用于实际工程。实例结果表明,基于平台建立的边坡可视化管理方案能够大幅提升案例公路边坡项目在运用阶段的管理水平与管理效率。研究为边坡信息化、可视化管理流程的制定和实施提供了参考。

BIM技术在绿色建筑施工管理中的应用

利用2016 AutodeskRevit软件建立模板样本,选取对应的模板文档,启动立项目标高度、轴线网络的构造,确定项目参照点,引进BIM技术,进行建筑单元模型的构建。根据工程方提出的要求,设计工程施工管理目标,通过此种方式,进行建筑施工中的多目标综合管理。实例应用实验结果表明:此次设计的管理方法在应用中,不仅可以缩短绿色建筑施工工期,还可以有效解决施工中的单元碰撞问题。