ISSN: 2241-7443
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Issue 1: Jan.-Apr. 2017

Issue 1: Jan.-Apr. 2017

Published online on May 2017


Bibliography and Literature Review οn Buckling of Laminated Plates

Osama Mohammed Elmardi Suleiman

Abstract: The effects of boundary conditions and lamination arrangements (i.e. stacking sequence and orientation of a lamina) were found to be important factors in determining a suitable exact, analytical or semi – analytical method for analyzing buckling loads on laminated plates. It was also found that: as the derivative order of shear deformation increases, the accuracy of stresses, strains, buckling loads etc. increases and it doesn't need shear correction factors.

International Journal of Bridge Engineering, Vol. 5, No. 1, 2017: pp. 1-9

Inspection and Maintenance Design of Steel Bridge

Raghabendra Yadav

Abstract: Bridges are the major elements of road network which should always be in good working condition. Good working conditions can be achieved by routine, periodic and emergency maintenance after the bridge con-struction. For this study Bokse River Bridge is selected which is located in Jalbire village development committee of Sindhupalchok district along the Balephi (Arniko Highway-Asian Highway) to Jalbire in Nepal. For the inspection and maintenance of bridge the work is divided into two major parts namely desk study and field work. The relevant data related to the bridge was collected during desk study then in the field study the detail survey was done. IRC: SP: 74-2007, Guidelines for Repair and Rehabilitation of Steel Bridges was used for the maintenance of the bridge. Based on the inspection of the structural elements of the Bokse River Bridge, the bridge is in poor condition and needs attention as soon as possible. In this paper, inspection of bridge, geological condition, maintenance design and preventive measures are discussed in detail.

International Journal of Bridge Engineering, Vol. 5, No. 1, 2017: pp. 11-20

Pin Clearance Effect in Total Displacements of Deployable Bridges

Vasileios D. Papavasileiou, Ioannis G. Raftoyiannis

Abstract: The “Bailey Bridge” which is named by its designer, is a deployable steel truss bridge consisted of prefabricated parts. This type of bridge was manufactured and used during the World War II, initially for military use. It was such an adjustable construction either in gaps or in loading capacity that made it popular among engineers. All the parts of Bailey bridge such as panels or transoms are connected to each other with bolts, pins and clamps. The aim of this study is to determine how the pin clearance affects the total displacement of the structure. Some measures of displacements, in situ, are not in accordance with the theoretical results which take into account only the dead load and the effect of shear forces. This diversion is caused by the lack of equations of pin clearance affection.

International Journal of Bridge Engineering, Vol. 5, No. 1, 2017: pp. 21-36

Structural Response of Concrete Skew Box-Girder Bridges

Tanmay Gupta, Manoj Kumar

Abstract: Box shaped support girders are considered as the most efficient support section for bridges and flyovers, as they provide enhanced structural efficiency, superior stability and serviceability of the bridge, as well as pleasing aesthetic appearance and better economy. In case of multi-lane bridges, multi-spine and multi-cell box sections are commonly used. Sometimes, due to space constrain, skew bridges are built especially in congested metropolitan areas. Due to presence of skewness, the structural behavior of box-girder bridges is significantly affected. Several experimental and numerical studies have been made to examine the effect of skewness on the structural response of box-girder bridges subjected to static and/or dynamic loads. The aim of the current paper is to review the literature published on the structural behavior of skew box-girder bridges subjected to static & dynamic loads including seismic effects. Moreover, this study also reviews the effect of skewness on load distribution among the multi-spine/cell box-girders bridges and presence of diaphragms in the bridge.

International Journal of Bridge Engineering, Vol. 5, No. 1, 2017: pp. 37-59

Analysis of Cable Stayed Bridge Under Cable Loss

Harshil Jani, Jignesh Amin

Abstract: In the recent years cable stayed bridges have received more attention than any other bridges. The cables of a cable stayed bridge are exposed to corrosion, abrasion and fatigue processes which may cause a reduction in their cross-section and a decrease in their resistance capacity. The failure of cable is one of the accidental or eventually event, which must be considered during cable stayed bridge design. This study investigates the effects of cable loss on the responses of the mixed type and fan type cable stayed bridge cable stayed bridge considering dead load and moving vehicle load as per IRC: 6-2014. The responses of the cable stayed bridge in terms of cable forces and nodal vertical displacements due to the loss of cables under excessive gradual corrosion and due to sudden loss of cable are investigated under moving loads. The structural response due to the sudden loss of cable is determined using the linear static analysis with dynamic amplification factor of two. The analysis results show that cable loss leads to the redistribution of loads to adjacent cables. The effect is significant when the cable loss is in middle or far from pylon as compared to loss of the cable near to pylon.

International Journal of Bridge Engineering, Vol. 5, No. 1, 2017: pp. 61-78

Εxperimental Evaluation of Shear Behavior in FRP Strengthened Concrete Bridge Girder

Rakesh B. Jayanna, Nur Yazdani

Abstract: External Fiber Reinforced Polymer (FRP) wrapping is an increasingly popular technique for the rehabilitation/strengthening and confinement of damaged concrete bridge girders. There is a general lack of knowledge on the full-scale experimental evaluation of FRP wrapped girders. This is especially true for the shear behavior of concrete girders with vertical FRP application. In this study, a full-scale standard Texas bridge I-girder with typical prestressed and non-prestressed steel was experimentally evaluated for three-point shear load capacity, and concrete cracking. A common unidirectional carbon FRP (CFRP) in the form of U-wraps was utilized. Load was applied near one support to induce maximum shear force in the girder. The U-wrapped FRP increased the shear capacity of the girder by about 11%. Typical flexural-shear cracking was observed. The crack initiation and propagation was delayed by the presence of CFRP layers. The girder behaved in an elastic manner during the shear loading phase. Difficulty with FRP U-wrap application in the field may decrease the quality of the FRP-concrete bond and shear contribution. Use of additional mechanical or other types of anchoring for the FRP U-wrap could be useful in delaying any premature FRP debonding.

International Journal of Bridge Engineering, Vol. 5, No. 1, 2017: pp. 79-94

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