Abbreviation: J. Civ. Eng. Constr. Technol.
Start Year: 2010
Page 1 of 6, showing 20 records out of 116 total, starting on record 1, ending on 20
DOI: 10.5897/JCECT2016.0413[Article Number: F81F0A561364]
This paper presents nonlinear numerical simulation of air blast loading with an over pressure level (500 kg TNT) with a different standoff distance of 10, 20, and 50 m to evaluate the effectiveness of Fluid Viscous Dampers (FVD) as new strengthening techniques to reduce blast loading responses on the existing reinforcement concrete buildings. Taking into consideration, most of the security buildings in Middle East,... Read more.
DOI: 10.5897/JCECT2015.0371[Article Number: 93BCE7259491]
In order to increase efficiency and sustainability, it is of crucial importance to have an in depth understanding and investigation of travellers’ behaviour, preferences, attitudes and choices. In this context, this paper investigates car-sharing as a mode for travel for work trips in Tabuk city for both male and female travellers. Tabuk is one of the regional capitals situated in north-western Saudi Arabia, which... Read more.
DOI: 10.5897/JCECT2015.0395[Article Number: AD04D2A58650]
In this study, the effects of partial replacement of ordinary Portland cement with natural polymers on selected physical and mechanical properties of cement-bonded rattan composites was investigated. Fibrous particles of Laccosperma secundiflorum rattan cane species were mixed with cement mortar at two levels, that is, 2.5 and 5.0%. For experimentation, Portland cement was partially replaced at four levels, first with... Read more.
DOI: 10.5897/JCECT2015.0394[Article Number: D848AE457695]
This study investigated the influence of beam depth with varying longitudinal reinforcement without shear reinforcement. Size effect, which is described here in as the decrease in shear strength with the increase in the depth of members, is not evaluated sufficiently enough. To this end, fifteen palm kernel shell (PKS) reinforced concrete beams varying from 150 to 300 mm were tested to investigate their size effects on... Read more.
DOI: 10.5897/JCECT2015.0379[Article Number: 15EEFC357741]
There are many human injuries induced by occupational accidents in construction industries. Determination and analysis of construction accidents' contributing factors is a good way to accidents' prevention and reduction. Therefore, this study was done in view of identification and analyzing factors related to frequency and severity of construction accidents and injuries in the big construction industries. This... Read more.
DOI: 10.5897/JCECT2015.0383[Article Number: 5BEA81556463]
This paper presents comparative study of design procedure for steel moment resisting frames with supplemental damping using performance-based design constraints under earthquake ground motions. The first design example is based on a 4-story steel moment frame building with velocity dependent dampers; the second design example is based on the same building with displacement dependent dampers. The primary... Read more.
DOI: 10.5897/JCECT2015. 0382[Article Number: 74509AF55757]
The main purpose of a building is to ensure thermal comfort to its occupants. The present work is a contribution to the improvement of the comfort and relates to the characterization of local materials used in Benin. The authors determined the mass diffusivity of the wood composite material and cement-stabilized laterite, as a function of its water content. The experimental device is designed around a magnetic... Read more.
DOI: 10.5897/JCECT2015.0364[Article Number: 25DB01753581]
Green Building Practices (GBPs) are gradually receiving worldwide recognition and uptake. It is argued that facilities built according to the GBPs, called green buildings are not only environmentally friendly, but also, economically more productive than other comparable ordinary ones. In the latter regard thus, green buildings’ periodical rental premiums, finished property values and energy efficiencies, amongst... Read more.
DOI: 10.5897/JCECT2014.0309[Article Number: D3AB42C53582]
This study focuses on the quality of water at Bosso Lake during the rainy season months of August to October. Water samples collected each month were examined for their physiochemical and bacteriological attributes. All the samples were obtained during the peak of the rainy season while traits such as nitrate concentration, pH values, total dissolved solids (TDS), total hardness, iron concentration, suspended solids,... Read more.
DOI: 10.5897/JCECT2014.0344[Article Number: 5CD69A453152]
Several materials such as tuff and Tripoli which is naturally occurring and industrial by-products wastes as high calcium ash and slag were investigated as cement substitutes in this paper. Compressive strength of various standard mortar samples have been tested at 7 and 28 days. The obtained results show that these materials have improved the properties Ordinary Portland Cement (OPC) concrete. It was found that an... Read more.
DOI: 10.5897/JCECT2015.0367[Article Number: B87FA4153161]
This paper evaluates the shear strength of simply supported palm kernel shell (PKS) concrete and normal weight concrete (NWC) beams subjected to four-point loading. The primary variable of the investigation was evaluation of shear capacity of reinforced PKS concrete and NWC beams with and without shear reinforcement. Four pairs of reinforced concrete (RC) beams with similar geometrical properties were designed and... Read more.
DOI: 10.5897/JCECT2015.0357[Article Number: CDEA8F552269]
Developing a predictive model for complex shear modulus of the asphalt binder is a complex technique due to several factors that affect the model’s estimating capability, such as rheological properties and test conditions. Several models were developed in this regard; some of these are linear regression models and relate to rheological properties of asphalt binder. A computational model based on artificial neural... Read more.
DOI: 10.5897/JCECT2015.0356[Article Number: 2961AE452271]
Bituminous materials in roads are subjected to short-term loading each time a vehicle passes. If sufficiently high, the loading results in a loss of rigidity of the material and can, by accumulation in the long term, lead to failure. The resulting fatigue deterioration is of great importance in pavement construction and must be correctly understood in order to ensure adequate structural design. The binder property plays... Read more.
DOI: 10.5897/JCECT2014.0346[Article Number: B023B3A51336]
Tensile test which was conducted in Part 1 establishes the engineering stress-strain relationship, which is used in basic engineering problems. However, finite element (FE) techniques used for analysis of large displacement and deformation problems use the true stress-true strain of materials in its structural characterisation. The aim of the current research work is to develop a mathematical model for predicting full... Read more.
DOI: 10.5897/JCECT2014.0342[Article Number: F083B8B50061]
Heavy metals such as arsenic (As), copper (Cu), chromium (Cr), Hg, lead (Pb) and cobalt (Co) cause adverse effects on living organisms by their toxic nature. To remove heavy metals, a variety of conventional treatment technologies have been tested which are not economical and user friendly. So, natural remediation method such as phytoremediation is becoming more popular where plants are used. Phytoremediation is a cost... Read more.
DOI: 10.5897/JCECT2014.0324[Article Number: 929B10349395]
Building pounding philosophy is the collision of adjacent buildings when earthquake take place and buildings show lateral movement. Providing suitable separation distance, impact force precludes and reduces the failure of construction elements. In this paper, building pounding between two reinforced concrete buildings with insufficient gap size is numerically investigated in order to study the impact force during... Read more.
DOI: 10.5897/JCECT2014.0325[Article Number: C9D2C5048561]
Transport is argued to be one of the most important human activities worldwide and an indispensable component of the economy. Transport provides an integral function in the forming of spatial relations between locations. Integrative transport systems are relatively unknown concept and therefore, only implemented to a certain extent. Integrating transport with the surrounding land use is however essential in order to... Read more.
DOI: DOI 10.5897/JCECT2014.0312[Article Number: 83E295D47340]
The effect of burning by fire flame on the behavior and load carrying capacity of rectangular reinforced concrete (RC) rigid beams is addressed in this paper. Reduced scale beam models (which are believed to resemble as much as possible field conditions) were suggested. Five end restrained beam specimens of casting and testing. The specimens were subjected to fire flame temperatures ranging from (25-750°C) at age of... Read more.
DOI: 10.5897/JCECT2014.0310[Article Number: 8B0ED0546669]
An optimum pavement structure design requires characterization of materials under traffic loading. Investigation of stress-strain relationship of materials, under traffic loading is advised to determine the appropriate stiffness modulus. Since stiffness modulus is extensively dependent to loading dynamics, the loading parameters in the laboratory testing condition should simulate the field condition as close as... Read more.
DOI: 10.5897/JCECT2013.0299[Article Number: 2CF1F9146015]
This work deals with optimization of seismic rehabilitation for regular pre-code reinforced concrete buildings. Evaluation of vulnerability is performed through conventional non-linear static pushover computations, using specialized finite element software. Three limitations were considered. These include: a prescribed code seismic design load of roof displacement of the total building, the maximum inter story drift and... Read more.
Page 1 of 6, showing 20 records out of 116 total, starting on record 1, ending on 20