Abstracts – Browse Results

Search or browse again.

Click on the titles below to expand the information about each abstract.
Viewing 17 results ...

Abu Dabous, S (2008) A decision support methodology for rehabilitation management of concrete bridges, Unpublished PhD Thesis, , Concordia University (Canada).

Al-Hussein, M (1999) An integrated information system for crane selection and utilisation, Unpublished PhD Thesis, , Concordia University (Canada).

Alshibani, A (2008) Optimizing and controlling earthmoving operations using spatial technologies, Unpublished PhD Thesis, , Concordia University (Canada).

Budawara, N (2009) Key performance indicators to measure design performance in construction, Unpublished PhD Thesis, , Concordia University (Canada).

El-Rayes, K A (1998) Optimized scheduling for repetitive construction projects, Unpublished PhD Thesis, , Concordia University (Canada).

Hammad, M M (2001) CPDICenter: Web-based virtual construction project document information center in support of claims preparation, Unpublished PhD Thesis, , Concordia University (Canada).

Hassanein, A (2003) Planning and scheduling highway construction using GIS and dynamic programming, Unpublished PhD Thesis, , Concordia University (Canada).

Hegazy, T M (1994) Integrated bid preparation with emphases on risk assessment using neural networks, Unpublished PhD Thesis, , Concordia University (Canada).

Iliescu, S (2000) A case-based reasoning approach to the designing of building envelopes, Unpublished PhD Thesis, , Concordia University (Canada).

Jrade, A (2004) Integrated conceptual cost estimating and life cycle costing system for building projects, Unpublished PhD Thesis, , Concordia University (Canada).

Li, J (2004) Web-based integrated project control, Unpublished PhD Thesis, , Concordia University (Canada).

Marzouk, M (2002) Optimizing earthmoving operations using computer simulation, Unpublished PhD Thesis, , Concordia University (Canada).

Meniru, K C U (2005) Computer-aided conceptual building design, Unpublished PhD Thesis, , Concordia University (Canada).

Morcous, G S L (2000) Case -based reasoning for modeling bridge deterioration, Unpublished PhD Thesis, , Concordia University (Canada).

Ravi, M (1998) Knowledge-based system approach to integrated design of multistorey office buildings at the preliminary stage, Unpublished PhD Thesis, , Concordia University (Canada).

Sadeghpour, F (2004) A CAD-based model for site layout, Unpublished PhD Thesis, , Concordia University (Canada).

  • Type: Thesis
  • Keywords: efficiency; reasoning; construction cost; construction project; construction site; feedback; material handling; productivity; reuse; safety; site layout; site operations
  • ISBN/ISSN:
  • URL: https://www.proquest.com/docview/305132636
  • Abstract:
    Front-end planning of construction sites can have a significant impact on the safety and efficiency of site operations and/or the cash flow associated with resource management. A well-planned site can: (i) minimize travel time; (ii) decrease time and effort spent on material handling; (iii) increase productivity; and (iv) improve safety, and hence decrease construction cost and time. Despite its importance, it is often ignored in the planning phase of construction projects. In practice, space allocation on construction sites is typically carried out on a first-come-first-serve basis, which could result in chaotic sites and productivity losses. This thesis presents an interactive CAD-based model, designed to support site layout planning and to provide a framework that meets the versatility needed in actual construction practice. The developed model performs its task at two levels: site representation, and site space analysis and allocation. The site representation is carried out using object-based concepts in an open architecture. The model offers three tiers of objects: (i) site objects, (ii) construction objects, and (iii) constraint objects. This classification assists in formalizing the representation needed for modeling construction sites. A formal structure for each tier of objects is proposed to facilitate the creation of new objects and reuse of domain knowledge. The space analysis and allocation is performed through a geometric approach, inspired by human reasoning, in search for the optimum or near-optimum location for temporary facilities. The model has a number of interesting features: (i) it provides a flexible support of a wide range of objects for site planner. This permits the set up of different construction projects via selection of objects stored in their respective libraries; (ii) the model has a built-in feedback to support the development of new objects and/or updating existing ones. This allows for the gradual expansion and enrichment of the supporting libraries; (iii) the geometric space analysis is visualized graphically and provides a range of ranked near optimum solutions. This feature facilitates user's comprehension of, and interaction in the layout process; and (iv) the system allows site planners to define search criteria based on their knowledge and expertise. It also allows for generation of a number of what-if scenarios, utilizing different rules and comparing the final layout results. A prototype of the developed model called CASL is implemented using Visual Basic for Applications (VBA) in AutoCAD environment. AutoCAD is dynamically linked to the relational database of Microsoft Access, which hosts the object libraries. (Abstract shortened by UMI. )

Shehab-Eldeen, T (2002) An automated system for detection, classification and rehabilitation of defects in sewer pipes, Unpublished PhD Thesis, , Concordia University (Canada).