Utilizing BIM+Geospatial for Existing Buildings

Transcription

1 College of Engineering Master of Science in Civil Engineering (MSCE) Utilizing BIM+Geospatial for Existing Buildings Presented By: Asem Zabin September 11, 2014

2 About Me: Asem Zabin Interests: Building Information Modeling, BIM for existing buildings, Utilizing Geo-Spatial technologies with BIM, BIM Education Graduate from the American University of Sharjah (AUS) with a Bachelor of Science in Civil Engineering (2012). BIM related Projects: 5D BIM Model: integrating time and cost with 3D BIM Model Researches: Barriers and limitations to adopting BIM in UAE Current Enrollments: BIM engineer at itech Management Consultancy BIM Implementation Projects: Al Mafraq Hospital, Abu Dhabi Riyadh Metro Project (Bechtel) Masters of Science in Civil Engineering student at AUS. Main Focus: Project Management, Remote Sensing, BIM

3 Contents Introduction As-Built Drawings Current Documentation Methods Remote Sensing Building Information Modeling (BIM) Problem Statement Literature Review Objectives Questions

4 GeoSpatial Data & Remote Sensing in Response to Sept 11

5 GeoSpatial Data & Remote Sensing in Response to Sept 11 Satellite Imagery IKONOS imagery gave the general public a view of Ground Zero, it provides a detailed representation of the ground surface

6 GeoSpatial Data & Remote Sensing in Response to Sept 11 LiDAR Altimetry Employed by Fire Chiefs as a planning and visualization tool. They used the resulting maps to estimate the volume of the debris piles and analyze changes between days. Also it helped locate original support structures, stairwells, elevator shafts, basements, etc.

7 As-Built Drawings Introduction Current Documentation Methods Remote Sensing Building Information Modeling (BIM)

8 Introduction - As-built Definition: Set of drawing and documents submitted by a contractor upon completion of a project or a particular job. Reflect all changes made in the specifications and working drawings during the construction process. Show the exact dimensions, geometry, and location of all elements of the work completed under the contract. Also known as record drawings or as is. Applications Commissioning Energy Analysis Maintenance Assessing building performance Renovations..etc

9 Introduction Current Documentation Methods Before As-Built Due to contractor errors, poor documentation, or on-site problems during the construction phase, the documents of a building often vary from how it was originally designed by the architects, Issued For Construction (IFC) drawings, shop drawings, and even after the project handling.

10 Introduction - Remote Sensing Remote Sensing is the science and art of capturing information about objects, areas, or a phenomenon through the analysis of data acquired by device that is not in physical contact with the object, area or the phenomenon. Remote sensing and imagining applications Features: It s contactless. It can be used to measure objects in very hot and difficult-toaccess areas. It allows fast measurement. It measures the temperature of a solid-state body.

11 Introduction Building Information Modeling (BIM) An improved planning, design, construction, operation, and maintenance process using a standardized machine-readable information model for each facility, new or old, which contains all appropriate information created or gathered about that facility in a format useable by all throughout its lifecycle - Charter of National Building Information Modeling (NBIM)

12 Introduction Building Information Modeling (BIM)

13 Introduction Building Information Modeling (BIM) Common BIM Benefits include: Improved visualization Improved productivity due to easy retrieval of information Increased coordination of construction documents Embedding and linking of vital information such as vendors for specific materials, location of details and quantities required for estimation and tendering Increased speed of delivery Reduced costs

14 Current procedures are mainly done manually, which is extensively time consuming, labor intensive, error-prone, and costly work. Problem Statement Current methods for data acquisition include laser distance meters, digital cameras, measuring tapes, and laser measuring devices. Inadequate interoperability of building information experiences cost increases of $6.12 per square foot for new construction and $0.23 per square foot for operations and maintenance. More than $1.5 billion are lost every year in the United States due to lack of information at building worksites for the maintenance and repair personnel.

15 Early Researches for data extraction Literature Review Use of Barcodes in Construction to extract location information of objects Radio Frequency Identification (RFID) tags

16 Literature Review Laser Scanners or Light Detection And Ranging (LiDAR) Advantages: High measurement density and accuracy Fast data acquisition Canopy penetration Photogrammetry

17 Literature Review BIM for Existing Buildings Researches have investigated Automated 3D geometric modeling of buildings using a laser scanner to create as-built BIM Process is divided into 3 stages: Data acquisition Data preprocessing Creating BIM Model

18 Literature Review Extraction of geometric features Knowledge based Automatic reconstruction of as-built BIM

19 Non-geometric Features Vision-based material recognition for automated monitoring of construction progress Literature Review Automatic thermographic & RGB texture of as-built BIM

20 Conclusions & Future Thoughts

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22 Questions Thank you for listening