Infrastructure Engineering - Research Publications

Permanent URI for this collection

http://hdl.handle.net/11343/347

Filters

2006 - 2009 6 2010 - 2018 38
Reset filters

Settings
Statistics
Citations
Type: Chapter × End date: 2018 ×

Search Results

Now showing 1 - 10 of 44
  • Item
    Thumbnail Image
    Internet of Things for Structural Health Monitoring
    SRIDHARA RAO, A ; Gubbi, J ; Ngo, T ; Mendis, P ; Palaniswami, M ; Epaarachchi, A ; Chanaka Kahandawa, G (CRC Press, 2016-05)
    The Internet revolution led to the interconnection between people at an unprecedented scale and pace. The ability of the sensor networks to send data over the Internet further enhanced the scope and usage of the sensor networks. The Internet uses unique address to identify the devices connected to the network. Structural Health Monitoring (SHM) implies monitoring of the state of the structures through sensor networks in an online mode and are pertinent to aircraft and buildings. SHM can be further divided into two categories: global health monitoring and local health monitoring. Continuous online SHM would be an ideal solution. SHM is performed by using acoustic sensors, ultrasonic sensors, strain gauges, optical fibers, and so on. Video cameras can also be used for SHM. SHM can be achieved in real-time and rich analytics. With the advent of smart sensors—sensors with programmable microprocessors, memory, and processing—has reduced load of central data processing, communication overhead while proving continuous SHM status.
  • Item
    Thumbnail Image
    Life-cycle performance of a bridge subjected to multiple heavy vehicle impacts
    Maizuar, ; Zhang, L ; Thompson, R ; Fithra, H (Emerald Publishing Limited, 2018-01-01)
    Purpose - The purpose of this study is to develop a numerical framework to predict the time-dependent probability of failure of a bridge subjected to multiple vehicle impacts. Specially, this study focuses on investigating the inter-relationship between changes in life-cycle parameters (e.g., damage size caused by vehicle impact, loss of initial structural capacity, and threshold intervention) and bridges probability of failure. Design/Methodology/Approach - The numerical procedure using MATLAB program is developed to compute the probability failure of a bridge. First, the importance and characteristics of life-cycle analysis is described. Then, model for damage accumulation and life cycle as a result of heavy vehicle impacts is discussed. Finally, the probability of failure of a bridge subjected to vehicle impacts as a result of change in life-cycle parameters is presented. Findings - The results of study show that damage size caused by both vehicle impacts and loss of initial structural capacity have a great impact on the long-term safety of bridges. In addition, the probability of failure of a bridge under different threshold limits indicates that the structural intervention (e.g., repair or maintenance) should be undertaken to extend the service life of a bridge. Research Limitations/Implications - The damage sizes caused by heavy vehicle impacts are based on simple assumptions. It is suggested that there would be a further study to estimate the magnitude of bridge damage as a result of vehicle impact using the full-scale impact test or computational simulation. Practical Implications - This will allow much better predictions for residual life of bridges which could potentially be used to support decisions on health and maintenance of bridges. Originality/Value - The life-cycle performance for assessing the time-dependent probability of failure of bridges subjected to multiple vehicle impact has not been fully discussed so far.
  • Item
    No Preview Available
    A field test to demonstrate the benefit of cool roof paints in a temperate climate
    JENSEN, C ; Hes, D ; Aye, L ; Schnabel, MA (The Architectural Science Association, 2013)
    This volume contains the refereed papers of the 47th International Architectural Science Association Conference 2013, held at the School of Architecture, The Chinese University of Hong Kong, China, They provide a snapshot of current cutting ...
  • Item
    Thumbnail Image
    Passive and Low Energy Buildings
    Aye, L ; Jayalath, A ; Shukla, A ; Sharma, A (CRC Press (Taylor & Francis Group), 2018)
    Better energy efficiency in buildings can be achieved with active, passive and combined strategies. This chapter presents and discusses design strategies for passive and low energy buildings. Passive buildings fall under low energy building where special design criteria is in place to reduce the operational energy consumption in a building. Passive and low energy technologies can provide satisfactory thermal comfort in non-airconditioned buildings. Passive buildings strategies include heat gain prevention, heat modulation and heat dissipation. Building envelope aspects such as walls, glazing, roof, insulation, thermal mass, and shading are discussed. Low energy cooling technologies: ground cooling and night ventilation are presented. Embodied energy aspect of these technologies is also briefly discussed. Proper architectural design of building envelope along with passive cooling strategies which are appropriate for the local climate conditions can significantly improve the energy efficiency and reduce the related greenhouse gas (GHG) emissions. CONTENTS 4.1 Introduction 4.2 Design Strategies and Performance Parameters of Passive and Low Energy Buildings 4.2.1 Walls 4.2.2 Glazing 4.2.3 Roof 4.2.4 Thermal Insulation, Thermal Mass and Phase Change Materials 4.2.5 Ground Cooling 4.2.6 Night Ventilation 4.3 Embodied Energy 4.4 Conclusions References
  • Item
    No Preview Available
    UNCERTAINTY AND ENVIRONMENTAL WATER
    Lowe, L ; Szemis, J ; Webb, JA ; Horne, AC ; Webb, JA ; Stewardson, MJ ; Richter, B ; Acreman, M (ACADEMIC PRESS LTD-ELSEVIER SCIENCE LTD, 2017)
  • Item
    No Preview Available
    ENVIRONMENTAL FLOWS AND ECO-HYDROLOGICAL ASSESSMENTS IN RIVERS
    Stewardson, MJ ; Webb, JA ; Horne, A ; Hart, BT ; Doolan, J (ACADEMIC PRESS LTD-ELSEVIER SCIENCE LTD, 2017)
  • Item
    No Preview Available
    MECHANISMS TO ALLOCATE ENVIRONMENTAL WATER
    Horne, AC ; O'Donnell, EL ; Tharme, RE ; Horne, AC ; Webb, JA ; Stewardson, MJ ; Richter, B ; Acreman, M (ACADEMIC PRESS LTD-ELSEVIER SCIENCE LTD, 2017)
  • Item
    No Preview Available
    MOVING FORWARD: THE IMPLEMENTATION CHALLENGE FOR ENVIRONMENTAL WATER MANAGEMENT
    Horne, AC ; O'Donnell, EL ; Acreman, M ; McClain, ME ; Poff, NL ; Webb, JA ; Stewardson, MJ ; Bond, NR ; Richter, B ; Arthington, AH ; Tharme, RE ; Garrick, DE ; Daniell, KA ; Conallin, JC ; Thomas, GA ; Hart, BT ; Horne, AC ; Webb, JA ; Stewardson, MJ ; Richter, B ; Acreman, M (ACADEMIC PRESS LTD-ELSEVIER SCIENCE LTD, 2017)
  • Item
    No Preview Available
    MODELS OF ECOLOGICAL RESPONSES TO FLOW REGIME CHANGE TO INFORM ENVIRONMENTAL FLOWS ASSESSMENTS
    Webb, JA ; Arthington, AH ; Olden, JD ; Horne, AC ; Webb, JA ; Stewardson, MJ ; Richter, B ; Acreman, M (ACADEMIC PRESS LTD-ELSEVIER SCIENCE LTD, 2017)
  • Item
    No Preview Available
    PRINCIPLES FOR MONITORING, EVALUATION, AND ADAPTIVE MANAGEMENT OF ENVIRONMENTAL WATER REGIMES
    Webb, JA ; Watts, RJ ; Allan, C ; Warner, AT ; Horne, AC ; Webb, JA ; Stewardson, MJ ; Richter, B ; Acreman, M (ACADEMIC PRESS LTD-ELSEVIER SCIENCE LTD, 2017)