Abstract
Preservation of heritage buildings should be carried out to get a better understanding of the behavior of their structures and keep them in a good condition. As such, corrective diagnosis of heritage buildings health conditions would help to identify potential risks and take remedy actions. This paper presents a framework for heritage Building Information Modeling (HBIM) application in Egyptian Heritage buildings. The framework is capable of utilizing processed point clouds using 3D laser scanning to create different purpose BIM models at the different levels of development to simulate the structural performances under different types of actions. The paper illustrates an extensive structural analysis for Tosson palace in Cairo – Egypt to assess its health state to assure its sustainability for future use.
Highlights
Preservation of heritage buildings should be carried out to get a better understanding of the behavior of their structures and keep them in a good condition
This paper presented a framework for heritage Building Information Modeling (HBIM) application in Egyptian heritage buildings
It reviewed the digital documentation of heritage using LiDAR, 3D parametric HBIM models, and structural analysis of heritage buildings
Summary
The 3D laser scanning advances have been presented in the field of surveying and can obtain 3D data about physical objects of different shapes and sizes in a cost and time effective way. They processed the raw data from the survey and generated an HBIM model for the church which displays the construction methods and the various rehabilitations and expansions from the Romans era till the baroque period. The framework pivots on the generation of 3D HBIM model from LiDAR high density point clouds Their approach overcomes the limitations of the traditional methods in terms of accuracy and time consumption. Murphy, McGovern, and Pavia (2009) outlined in detailed workflow of HBIM system which starts with point cloud and digital imagery, and results in a textured 3D parametric model They extended the ability of the geometric descriptive language (GDL) to generate 3D parametric objects that they used to develop a library for historical 3D parametric objects of historical buildings’ elements. Their work provided insights into the Romans’ exploitation hydraulic engineering techniques and geometry; which in turn highlighted the scope and impact of the Roman mining works that turned out to be more important than previously estimated
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