Results 191 to 200 of about 12,108 (230)

Assessment and identification of concrete box-girder bridges

IABSE Reports, 2019
<p>This work consists in identify and assess the properties related to material, geometry and physic sources, in a pre-stressed concrete bridge through a surrogate model. The use of this mathematical model allows to generate a relationship between bridge properties and its dynamic response, with the purpose to develop a tool to predict the ...
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Performance estimation of prestressed concrete box girders

Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics, 2010
A composite layered approach is adopted in this paper for the analysis of prestressed concrete box girders, which have complex behaviour. The multilayer shell element is made up of many layers with different thickness, and different material models are assigned to various layers so that the structural performance can be directly connected with the ...
T. Ch. Madhavi, M. Sekar, V. Paramasivam
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Steel–Concrete Composite Box Girder Bridges

1999
This chapter focuses on straight steel–concrete composite box-girder bridges. A single box girder with multiple cells is economical for very long spans. Multiple webs reduce the flange shear lag and also share the shear forces. A composite box section usually consists of two webs, a bottom flange, two top flanges and shear connectors welded to the top ...
Yusuf Saleh, Lian Duan
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Ultimate Strength of Concrete Box Girder Bridge

Journal of the Structural Division, 1974
Results obtained in a study of a large-scale, two-span, four-cell reinforced concrete box girder model are presented. The model, which was a 1:2.82 scale replica of a prototype, had overall plan dimensions of 72 ft (21.14 m) long by 12 ft (3.66 m) wide.
Jack G. Bouwkamp, Alexander C. Scordelis, S. Tanvir Wasti   +2 more
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Application of High Performance Concrete in the Construction of Box Girder

Advanced Materials Research, 2013
The strength and durability are the main design parameters of high performance concrete. Concrete should be strict attention to the requirements of various raw materials and mix proportion design in the production process. Engineering example shows that high performance concrete has good durability, economy and environmental protection.
Qi Yong You, Hong Yong Yang
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Load Testing of a Deteriorated Concrete Box Girder Bridge

Advances in Structural Engineering, 2002
This paper reports on load testing of a continuous three cell concrete box girder bridge. The bridge is non-prismatic, curved in plan, and has skewed supports. The bridge is over thirty years old, and it was designed with a construction joint between two continuous spans and a span with a cantilever. The tests were carried out to evaluate the cause of
Jun Yang, John T DeWolf
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ANALYSIS OF CONCRETE BOX GIRDERS BEFORE AND AFTER CRACKING.

ICE Proceedings, 1972
An automatic incremental iterative finite element procedure for the analysis of post-tensioned box girders subject to combined bending and torsion in the uncracked and post- cracking range is presented. The analysis includes the non- linear behaviour of the materials, the change in the structural topology due to the initiation and propagation of cracks,
DN TRIKHA, AD EDWARDS
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Overlay for Concrete Segmental Box-Girder Bridges

Journal of Bridge Engineering, 2000
Concrete overlay cracking and delamination were noticed on a concrete segmental box-girder bridge. Analytical investigation and field and laboratory examinations were conducted to identify the major factors causing the defects. The time-dependent stress distribution and its change in the overlay and along the interface between the overlay and the ...
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Analysis and Design of Prestressed Concrete Box Girder Bridge

2022
AbstractBridge construction has now achieved global significance. In this evolution era, prestressed box girder bridge is becoming more and more popular the bridges as it has improved serviceability, aesthetic appearance, better stability, and also economical. It has also structural efficiency.
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On Sensitivity of Thermal Parameters for Concrete Box Girder in the Sunshine

Key Engineering Materials, 2008
In this paper, the temperature field and the thermal effects on a concrete box girder in the sunshine are investigated. For this purpose, the finite element method (FEM) package ANSYS is applied. By varying the values of different thermal parameters, the sensitivity of the thermal parameters is explored. Numerical results are presented and discussed to
Jian Zhuang Xiao, Zhi Wen Song, Chuan Zeng Zhang   +2 more
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