Recent Trends in Civil Engineering & Technology
Volume 2, Issue 1-3 (2012)
Published
Table of contents
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Bridge Scour by HEC-RAS Model: A Case Study over Ganga Bridge
Abstract: Lacey’s equation is often used to find out the scour depth in rivers in India. Lacey’s regime formula (1930) was developed on the basis of limited field data from irrigation canals in Punjab Province having discharge ranges from 0.70 to 173 m3/s. The total scour at a highway crossing is comprised of three mechanisms: long-term aggradation-degradation, contraction of reach, and local scours at piers and abutments. In the present study, …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 1–8 Read article
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Pore-structural Parameters of Concrete, their Inter-Relationship and Correlation to Compressive Strength
Abstract: An extensive literature review was carried out on various forms of pore structural parameters (pore diameters) of concrete such as critical pore diameter, mean pore diameter, and threshold pore diameter and their correlations to compressive strength of concrete. From the review of the literature, it has been observed that the inter-relationships among various forms of pore diameters and their correlation to compressive strength of concrete have not been discussed much …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 102–112 Read article
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Simulation Study of Construction Work Zones – A Case Study
Abstract: Rapid infrastructure development paves way to widening and strengthening of highways. During this process, construction work zones are encountered. Speed in the construction work zones is a vital factor to be focused upon, especially on highways. If the speed is high, fatal accidents will occur in the work zone and if it is too low, it will contribute towards the delay, followed by increased queue lengths and thereby increased vehicle …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 113–123 Read article
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Stiffness of Concrete Flexural Members Increases on Use of Shape Memory Alloy Bars as Reinforcement
Abstract: This paper describes the properties of Shape Memory Alloys (SMAs) and its useful aspect towards utilization in civil engineering structures. The non-linear material behavior in terms of shape memory effect, superelasticity, martensite damping and variable stiffness is presented. The values of effective moment of inertia and cracking moment, of treated and controlled Reinforced Concrete (RC) beams were determined using ACI 318, AS 3600 and CEB-FIP model codes. Treated beams were …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 124–138 Read article
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Strength Assessment of RCC Beams Subjected to Corrosion
Abstract: The damage assessment of civil structural members is one of the most important and recently emerging fields in engineering. Deterioration of a structure may occur due to a host of factors such as poor workmanship, improper maintenance, atmospheric effects, accidents, natural calamities. Certain causes like environmental effects, natural calamities cannot be controlled. Therefore, durability of concrete structures especially those exposed to aggressive environments is of great concern. Many deterioration causes …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 139–152 Read article
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Study of Traffic Noise in the City Agartala
Abstract: This paper refers to a study of the impact of road traffic noise in a heterogeneous traffic flow condition in the city Agartala. The traffic noise levels were monitored using sound level meter SL-4001 everyday at 48 locations for 7 days and simultaneous measurements were done regarding vehicle flow, spot speed and distance of residence from the road. The measured noise levels were further converted to equivalent noise level (Leq) …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 153–159 Read article
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Turbulence Characteristics of Flow over Smooth and Rough Beds
Abstract: Experimental study on turbulence measurements in an open channel with smooth and rough beds using acoustic doppler velocimeter (ADV) has been carried out in the present study. Measured velocity distribution along the depth on smooth and rough beds for different discharges and bed slopes is in good agreement with logarithmic law. The turbulence intensities were more near the bed and less near the water surface. Existing equations for turbulence intensities …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 160–166 Read article
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Critical Evaluation of “Urban Open Spaces in Development Plan”: A Case Study
Abstract: After independence, town planning experienced tremendous changes in its approach. Town and country planning laws were enacted by various states and accordingly preparing a development plan of town or cities became obligatory for municipal councils. Maharashtra state is said to be progressive in this regard and enactment of Maharashtra Regional and Town Planning Act, 1996, made it possible to prepare a development plan for all towns having municipal corporations, councils, …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 19–36 Read article
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Estimation of Burger Model Parameters by Inverse Analysis of Oedometer Data
Abstract: Contrary to the forward analysis, inverse analysis can be effectively utilized to determine the parameters of a constitutive model commonly used to represent the stress-strain-time behavior or the load-deformation-time behavior of the soil. This paper reports the development of a generalized inverse analysis formulation for the parameter estimation of four-parameter Burger model. The analysis is carried out by formulating the problem as that of mathematical programming in terms of identification …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 37–54 Read article
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Experimental Investigation on the Seismic Disaster Mitigation of Unreinforced Brick Masonry Buildings
Abstract: The Himalayan region is considered to have the potential to produce earthquakes of magnitude 8.0 or greater once every 100 years. Since the occurrence of an earthquake cannot be prevented; therefore, seismic disaster mitigation remains the only option for the civil society. Unreinforced masonry (URM) buildings, constructed with stone or brick, are very common in Northern Pakistan part of Himalayan belt. The seismic performance of stone masonry was found very …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 55–67 Read article
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Geotechnical Analysis of Stepped Gravity Walls
Abstract: Retaining walls are structures that help to maintain different elevations of the ground surface on either side of it. When the height of cut, backfill or slope is beyond a certain limit, a single gravity retaining wall becomes unfeasible and uneconomical. In such situations, stepped gravity walls can be an attractive option. The wall at each level of the retaining system should be checked for safety against sliding, overturning and …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 68–77 Read article
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Methodology for Evaluating Driver’s Attitudes towards Transportation Demand Management Strategies in Lahore, Pakistan
Abstract: The transportation demand management (TDM) strategies consider as an important tool to solve urban congestion related problems both in objective and subjective manner. This study attempted to explore attitudes of rickshaw, taxi, and truck drivers towards soft and hard strategies considering driver’s various lifestyles and attitudes. Structural equation modeling (SEM) technique used in order to predict driver’s behavior towards each specific TDM strategy using the behavioral theories as a frame …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 78–92 Read article
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Comparative Study of Geopolymer Paste Prepared from Different Activators
Abstract: The present paper explores the comparative study of the geopolymer paste resulting from different alkali activations. In this experimental study, four series of geopolymer pastes differing in the alkali activation were manufactured by activating low calcium fly ash. These activators were subjected to a certain temperature of 35 °C for duration of 24 h. After casting of the specimens, activated by those activators, they were subjected to 85 °C for …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 9–18 Read article
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Monsoon Flood Forecasting in Gandak River Using Discreet Wavelet Transform
Abstract: The Gandak River in North Bihar carries huge flood during the monsoon period. The daily variation in its flow during this period is so significant that conventional methods find it difficult to model the flow. In this paper, new models employing discreet wavelet transform (DWT) have been developed to forecast daily flows in a large river like Gandak. DWT decomposes the flow series into constituent wavelet components of ``approximations’’ and …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 93–101 Read article