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Full-Text Articles in Engineering
A New Building Scheme To Resist Progressive Collapse, Muhammad N. S Hadi, Thaer M. Saeed Alrudaini
A New Building Scheme To Resist Progressive Collapse, Muhammad N. S Hadi, Thaer M. Saeed Alrudaini
Faculty of Engineering - Papers (Archive)
In this paper, a new scheme is proposed for retrofitting RC buildings to resist progressive collapse that may result from a first floor column failure. The proposed scheme is comprised of placing vertical cables connected at the ends of beams and hung on a hat steel braced frame seated on top of the building. In case of a column collapse, the cables transfer the residual loads above the failed column to the hatbraced frame, which, in turn, redistributes these loads to the adjacent columns. A finite-element modeling and a nonlinear dynamic analysis following the alternate path method (APM), as recommended …
Performance Comparison Between An Mrf Damper And An Mre Isolator Incorporated With A Building Structure, Yang Zhou, Weihua Li, Muhammad N. S Hadi
Performance Comparison Between An Mrf Damper And An Mre Isolator Incorporated With A Building Structure, Yang Zhou, Weihua Li, Muhammad N. S Hadi
Faculty of Engineering - Papers (Archive)
As an important member of smart materials, magnetorheological elastomers (MREs) exhibit characteristics that their modulus can be controlled by an external magnetic field. Based on these experimental results, a viscoelastic solid model with four parameters was proposed to predict the performance of MRE. A building model, three stories high, was constructed using MATLAB SIMULINK to evaluate the performance of an MRE device in structural control. In addition, the performance of an MRF damper and an MRE device in structural control, where the resultant peak force was selected as a criterion in the evaluation process, was compared and discussed. Two controllers, …
Online Performance Evaluation Of Alternative Control Strategies For Building Cooling Water Systems Prior To In-Situ Implementation, Zhenjun Ma, Shengwei Wang, Fu Xiao
Online Performance Evaluation Of Alternative Control Strategies For Building Cooling Water Systems Prior To In-Situ Implementation, Zhenjun Ma, Shengwei Wang, Fu Xiao
Faculty of Engineering - Papers (Archive)
This paper presents the online test and evaluation of the performance of five practical control strategies (fixed set-point control method, fixed approach control method, two near optimal strategies and one optimal strategy) for building cooling water systems to identify the best strategy for future field validation. All of these strategies were tested and evaluated in a simulated virtual environment similar to the situation when they are actually implemented in practice. A virtual building system representing the real building and its central chilling system was developed and used to test the operational performance of the system controlled by different strategies. The …
Online Optimal Control Of The Central Chilling System In A Super High-Rise Commercial Building, Shengwei Wang, Zhenjun Ma
Online Optimal Control Of The Central Chilling System In A Super High-Rise Commercial Building, Shengwei Wang, Zhenjun Ma
Faculty of Engineering - Papers (Archive)
This paper presents the online optimal control strategies of the central chilling system in a super high-rise building in Hong Kong. The work presented aims at developing a package of optimal control strategies and evaluating their energy saving potentials and finally implementing these strategies in the building to enhance its energy efficiency. Based on testing the effects of interactions within the cooling water system and chilled water system on the system operation performance, the optimal control strategies for the cooling water system and variable speed pumps with different installations in the secondary chilled water system are developed. These strategies are …
Automating Code Checking For Building Designs -Designcheck, Lan Ding, Robin Drogemuller, Mike Rosenman, David Marchant, John Gero
Automating Code Checking For Building Designs -Designcheck, Lan Ding, Robin Drogemuller, Mike Rosenman, David Marchant, John Gero
Faculty of Engineering - Papers (Archive)
This paper presents an automated code checking system (DesignCheck) that enables quick and easy compliance assessment against building codes and assists designers in finding potential problems early. The system enables modelling of extended design information and encoding of a wider range of domain knowledge embedded in building codes. It uses Industry Foundation Classes (IFCs) as a common model to transfer 3D object-based CAD models to the DesignCheck internal model. The DesignCheck internal model allows for the definition of comprehensive design information as well as identical description mapping onto building codes. Building codes are interpreted using an object-based representation and then …
Building Vulnerability Design Against Terrorist Attacks, Alexander Remennikov, D. Carolan
Building Vulnerability Design Against Terrorist Attacks, Alexander Remennikov, D. Carolan
Faculty of Engineering - Papers (Archive)
Some of the concepts that can help structural engineers and building owners mitigate the threat of hazards associated with terrorist attacks on new and existing buildings are discussed. The state-of-the-art methods to enhance protection of the building by incorporating low-cost measures at the early stages of building design are highlighted.
Supporting Collaboration And Multiple Views Of Building Models In Virtual Worlds, Mary Lou Maher, Mike A. Rosenman, Lan Ding, Gregory J. Smith, David Marchant, Andy Dong
Supporting Collaboration And Multiple Views Of Building Models In Virtual Worlds, Mary Lou Maher, Mike A. Rosenman, Lan Ding, Gregory J. Smith, David Marchant, Andy Dong
Faculty of Engineering - Papers (Archive)
Collaboration in virtual environments has the potential to support communication and collaboration in multi-disciplinary teams. Current software for documenting and developing models of buildings focuses on supporting a single user who is a specialist in the specific software used within their own discipline. In this paper we report on the research, and a proposed approach, in supporting multiple disciplines in virtual worlds. We emphasise that the views and models are founded on the functional concerns of designers and the concerns are discipline specific. An agentbased approach to representing multiple views is described, along with a virtual world environment that supports …