American Journal of Civil Engineering

Volume 3, Issue 5, September 2015

  • Seismic Analysis (Non-linear Static Analysis (Pushover) and Nonlinear Dynamic) on Cable - Stayed Bridge

    Mohammad Taghipour, Hesamoldin Yazdi

    Issue: Volume 3, Issue 5, September 2015
    Pages: 129-139
    Received: 12 August 2015
    Accepted: 25 August 2015
    Published: 05 September 2015
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    Abstract: Pushover analysis application development is greatly increased in recent years and numerous advanced methods to evaluate the seismic pushover are provided. Because these methods have been proposed mainly for building structures and given the fundamental differences between the behavior of bridge structures and buildings using pushover methods on th... Show More
  • Thermo-Physical Properties of Local Materials Used in the Construction of Chad

    Ahmat-Charfadine Mahamat, Mahamat Barka, Abakar Mahamat Tahir, Malloum Soultan, Salif Gaye, Aboubakar Cheikh Beye

    Issue: Volume 3, Issue 5, September 2015
    Pages: 140-149
    Received: 22 August 2015
    Accepted: 08 September 2015
    Published: 24 September 2015
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    Abstract: As earth is the most commonly used construction material in Chad, the purpose of the present study is to characterize it as a whole, and to characterize its thermo physical properties. Various tests were conducted on it and mainly on its thermo-physical characteristics, as these significantly affect the comfort of a house. The study focused on eart... Show More
  • A Macroscopic Fundamental Diagram for Spatial Analysis of Traffic Flow: A Case Study of Nyeri Town, Kenya

    Lekariap Edwin Mararo, Abiero Gariy, Mwatelah Josphat

    Issue: Volume 3, Issue 5, September 2015
    Pages: 150-156
    Received: 01 September 2015
    Accepted: 21 September 2015
    Published: 22 October 2015
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    Abstract: Traffic flow analysis is an essential component of a town’s traffic and transport systems since these flows could, and often do lead to the occurrence of congestion on our roads.Traffic congestion is a growing problem in Nyeri, Kenya, resulting from rapidly increasing population and the crowding of motorized traffic onto a limited street network. T... Show More
  • Composite Concrete Slabs with Profiled Steel Decking: Comparison Between Experimental and Simulation Study

    Namdeo Hedaoo, Namdeo Raut, Laxmikant Gupta

    Issue: Volume 3, Issue 5, September 2015
    Pages: 157-169
    Received: 23 September 2015
    Accepted: 04 October 2015
    Published: 05 October 2015
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    Abstract: The research work is to study the behavior of the composite concrete slabs with CRIL DECKSPAN type profiled steel decking by experimental and simulation study. The slab is created by composite interaction between concrete and steel deck with rolled embossments to improve their shear-bond characteristics. However, it fails under longitudinal shear-b... Show More
  • Identification and Management of Risks in Construction Projects

    Mohammad Ali Rezvani Befrouei, Mohammad Taghipour

    Issue: Volume 3, Issue 5, September 2015
    Pages: 170-177
    Received: 25 September 2015
    Accepted: 04 October 2015
    Published: 30 October 2015
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    Abstract: Today, risk management in construction projects is considered to be a very important managerial process for achievement of project’s objectives in terms of time, costs, quality, safety, and environmental sustainability. Instead of employing a systematic approach for identification of risks, their probability and their effects, most of the studies c... Show More
  • Effects of Crude Oil Contaminant on the Engineering Properties of Concrete

    George Abednego, Onungwe Ishmael, Oba Achemie, Akpan Paul, Sarogoro Samuel

    Issue: Volume 3, Issue 5, September 2015
    Pages: 178-182
    Received: 15 October 2015
    Accepted: 26 October 2015
    Published: 16 November 2015
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    Abstract: The artificial application of crude oil in various percentages in concrete mix constituent to under study the service interaction of concrete in contact with oil was carried out. The research contained herein present the investigation, analysis and comparative results obtained from a total of 96 concrete cubes sample consisting of 12 control cubes,... Show More
  • Influence on the Performances of Foamed Concrete by Silica Aerogels

    Cheng Hai-li, Yang Fei-hua, Wang Yi, Hao Li-wei

    Issue: Volume 3, Issue 5, September 2015
    Pages: 183-188
    Received: 02 December 2015
    Accepted:
    Published: 03 December 2015
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    Abstract: Aiming at the problems of organic thermal insulation material, SiO2 aerogel was mixed into foamed concrete in two different ways, to investigate its effects on thermal conductivity, compression strength and volume water absorption of foamed concrete. XRD, FT-IR and SEM have also been used to analyze the relationship between both the amount and the ... Show More
  • Study on Roller Compacted Concrete’s Nominal Fracture Toughness Based on Crack-Depth Ratio

    Ren Li-li, Guo Rui-jin

    Issue: Volume 3, Issue 5, September 2015
    Pages: 189-193
    Received: 05 December 2015
    Accepted:
    Published: 05 December 2015
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    Abstract: The roller compacted concrete (RCC) has been widely used, and the practical concrete crack usually has different crack-depth ratios, but the researches about the fracture toughness formula for RCC rarely consider crack-depth ratio. Here the wedge-splitting fracture test was carried on the RCC specimens with different crack-depth ratios(0.4, 0.5, 0.... Show More