BIM在风景园林设计中应用的必要性

我国城市化的进程正在逐渐从粗放型走向集约型,《2011—2015年建筑业信息化发展纲要》标志着建筑行业已经开始走上了数字化的道路。在其数字化道路的种种助力因素中,作为舶来品的BIM扮演了不可忽视的角色。BIM在建筑的成本预算、场地分析、能量分析、能耗分析、规范验证、3D协调、数字化加工、资产管理、灭害计划等方面都有着创新性的改革和全局性的协调。而风景园林设计中,BIM同样可以起到举足轻重的作用。在借鉴建筑行业对BIM引进过程中遇到种种问题的基础上,针对我国设计院及高校的现状,分析了BIM引入风景园林设计的必要性,并展望了BIM在业内的发展前景。     

基于BIM的大型项目群信息集成管理研究

我国建筑业发展势头强劲,大型项目群不断涌现。针对大型项目群的特点、结构与管理风险,基于BIM的研究成果,构建了主要包括项目产品、全寿命过程和管理组织等三方面的大型项目群管理信息集成模型,并对其在大型项目群管理中的作用进行了分析。     

Prediction of yearly energy requirements of indoor ice rinks

A model of the transient heat transfer between the ground under and around the foundations of an indoor ice rink and the brine circulating in pipes embedded in the concrete slab under the ice has been coupled with a previously developed model calculating heat fluxes towards the ice by convection, radiation and phase changes. Subroutines calculating the energy consumption for heating and humidifying (or cooling and reheating) the ventilation air have also been added to the model. The resulting simulation tool has been used to calculate monthly refrigeration loads and energy consumption by the ventilation system, the lights, the brine pump, the radiant heating system of the stands and the underground electric heating used to prevent freezing and heaving for four North American cities with very different climates. Correlations expressing the energy consumption of the ventilation air stream in terms of the sol-air temperature are formulated.     

钢结构软件数据交换格式SDNF简介

对钢结构软件的数据交换格式SDNF予以介绍。     

基于Revit软件BIM模型轻量化研究

随着BIM技术推广和普及,建筑行业越来越多的生产环节采用了BIM技术,但BIM软件的的全专业模型往往体量庞大,查看方式单一,为此对BIM模型轻量化研究成为了必要。本文基于雄安新区智慧城市试点项目所采用的xdb实体类数据和Revit API导出接口,对BIM模型轻量化进行研究,旨在于通过几何引用的方法解决BIM模型轻量化的问题。     

基于小波神经网络的建筑BIM能耗预测算法研究

为了提高城市建筑能源管理的效率，从而实现节能减排目的，提出了一种基于小波神经网络的建筑BIM能耗预测算法。该方法首先根据限制因素建立了标准的建筑模型。然后根据简化原则，以某商务型公寓楼为例通过BIM 技术对建筑模型进行了参数化。最后运用BP小波神经网络对模型能耗进行预测算。仿真实验结果显示，提出方法的预测误差在合理范围内，验证了其可行性。     

BIM结合三维激光扫描在建筑中的应用

研究了BIM与三维激光扫描技术结合在建筑中的两类应用。一类应用是针对缺失图纸的建筑,通过三维激光扫描采集点云数据,导入BIM软件中进行逆向建模。二类应用是针对施工监控,通过定期对施工现场进行三维扫描,将处理后的扫描点云与设计模型进行对比,将施工质量以可视化方式进行呈现,便于检验和控制施工质量。     

建筑工程BIM应用价值评价指标体系研究

目前BIM在建筑工程中的应用价值已获得人们认可,但其量化评价体系尚未形成。从目标维、过程维和对象维构建建筑工程价值体系,结合建筑全生命周期理论,建立建筑工程BIM应用价值评价维度矩阵;在此基础上,分析BIM在建筑工程中的应用情况,并提出其质量价值、进度价值、投资控制价值的量化评价指标,最终形成BIM应用价值指标体系,从而为BIM在项目管理中的应用效益衡量提供参考。     

施工企业BIM采纳率研究——基于主体建模法

采用基于主体建模的方法,分析BIM应用程度和项目风险对一定区域范围内施工企业BIM采纳率的影响。研究发现,BIM应用程度对BIM采纳率的影响作用具有一定的波动性;而项目风险对BIM采纳率的影响趋势则呈现单调性;在BIM应用程度和项目风险对BIM采纳率的影响作用中,企业的风险承受能力发挥较为显著的调节作用。     

Understanding the impact of BIM on collaboration: a Canadian case study

ABSTRACT

Facilitating collaboration amongst project stakeholders in the construction industry is one of the central tenants of building information modelling (BIM). While there is increasing evidence of the positive influence of BIM on project outcomes, ambiguity remains around BIM’s true impact on collaboration. The presented case study aims to develop insights into the impact of BIM on collaboration in the architecture, engineering and construction industry. A critical realist perspective was adopted and a systematic combining approach was employed to support data collection and analysis. Data were collected through a longitudinal case study of a large design–build project in Canada. The unit of analysis was the individual project team member. Five cognitive determinants identified from the analysis are seen to inform an individual’s framing of event patterns in the context of BIM-enabled collaboration: requirements, expectations, intentions, incentives and capabilities. From this perspective, the impact of BIM on collaboration is understood as a reshaping of an individual’s cognitive determinants, which influence a team member’s framing of event patterns enacted throughout project delivery. This shift is manifested by changing information landscapes, i.e. sources and flows of information, that are generated, shared and consumed within the project team.