Automation process in data collection for representing façades in building models as part of the renovation process

Kepa Iturralde, P. Elguezabal, Asier Mediavila
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Abstract

A key barrier in building-facade renovation processes is that, contrary to new designs, an initial building model where the design process is based rarely exists, and the technologies usually employed to create it (e.g., based on point cloud scanning) are costly or require modeling skills. This situation is a clear limitation, especially in early decision stages, where the level of detail required is not very high, and the analysis and studies to consider the renovation plan (e.g., simplified energy simulations and renovation potential, or estimation of the number, types, and dimensions of the prefabricated modules incorporating solar panels) highly depend on such digital models. This paper introduces a process that, based on freely available data such as open GIS sources (local Cadasters, OpenStreetMap…) and façade images, can semi-automatically generate the 3D building model of the existing conditions, and in a second step also suggests the prefabricated facades module layout for building upgrades. Additionally, no onsite visit is needed. When the upgrade is focused on the façade, a big opportunity is identified for generating the building model and a realistic representation of its envelope, only using online data sources as input. The process developed consists of a set of easy-to-use software tools that can be used independently or combined in a workflow, depending on the available data and starting conditions. Time saving is very clear and costs can be reduced.
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作为翻新过程的一部分,在建筑模型中表现外墙的数据收集自动化流程
建筑幕墙翻新过程中的一个主要障碍是,与新设计相反,设计过程所依据的初始建筑模型很少存在,通常用于创建模型的技术(如基于点云扫描的技术)成本高昂或需要建模技能。这种情况是一个明显的局限,尤其是在早期决策阶段,对细节的要求并不高,而考虑翻新计划的分析和研究(如简化的能源模拟和翻新潜力,或预制模块(包括太阳能电池板)的数量、类型和尺寸的估算)则高度依赖于此类数字模型。本文介绍了一种基于开放式地理信息系统(Cadasters、OpenStreetMap......)和外墙图像等可免费获取的数据,可半自动生成现有条件下的三维建筑模型,并在第二步中提出建筑升级的预制外墙模块布局建议。此外,还无需实地考察。当升级的重点是外墙时,只需使用在线数据源作为输入,就能生成建筑模型并逼真再现其外墙,这是一个很好的机会。所开发的流程包括一套易于使用的软件工具,可根据可用数据和起始条件在工作流程中独立使用或组合使用。节省时间和降低成本的效果非常明显。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Facade Design and Engineering
Journal of Facade Design and Engineering Engineering-Architecture
CiteScore
1.90
自引率
0.00%
发文量
3
审稿时长
12 weeks
期刊介绍: The Journal of Facade Design and Engineering presents new research results and new proven practice in the field of facade design and engineering. The goal is to improve building technologies, as well as process management and architectural design. This journal is a valuable resource for professionals and academics involved in the design and engineering of building envelopes, including the following disciplines: Architecture Façade Engineering Climate Design Building Services Integration Building Physics Façade Design and Construction Management Novel Material Applications. The journal will be directed at the scientific community, but it will also feature papers that focus on the dissemination of science into practice and industrial innovations. In this way, readers explore the interaction between scientific developments, technical considerations and management issues.
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