Review of Design and Analysis of Box Girder Bridges And T-Beam Bridges Using IRC Codes

2020 ◽  
pp. 184-189
Author(s):  
Shubham Sirse ◽  
Kuldeep R. Dabhekar ◽  
Isha P. Khedikar ◽  
M. B. Saiwala
Keyword(s):  
Torsional Stiffness ◽  
Box Girders ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Analysis And Design ◽  
Girder Bridges ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
Beam Bridge ◽  
T Beam

Bridge is the structure which is used for carrying the traffic over the valley or river by connecting highways or railways. There are types of bridges which are T-beam bridges and box girder bridges where the T-beams are effective in resisting bending providing ductility to the bridges. While box girders gives high torsional stiffness providing ductility, stability and also aesthetics. Different codes with varying design philosophy are used for designing these bridges such as IRC:21-2000 and IRC:112-2011. Hence the purpose of this paper is to compare the results of analysis and design of different papers performed using these codes for both the types of bridges i.e. T-beam and box girder bridge. Various researchers studies are available on the design and analysis of T-beam bridge and box girder bridge using IRC:112-2011 and IRC:21-2000. The purpose of this study is to determine the most economical and preferable design code for both T-beam bridges and box girder bridges.

Installation Technology of Webs in the Construction of PC Box-Girder Bridge with Corrugated Steel Webs

2012 ◽  
Vol 204-208 ◽  
pp. 2209-2213 ◽  
Author(s):  
Ya Jiang Du ◽  
Bing Wen Yang ◽  
Shui Wan
Keyword(s):  
Prestressed Concrete ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Section Shape ◽  
Out Of Plane ◽  
Box Girder Bridge ◽  
Corrugated Steel Web ◽  
Girder Bridge ◽  
Installation Technology

In the construction of prestressed concrete(PC) box-girder bridge with corrugated steel webs used cast-in-place cantilever method, the key component-corrugated steel webs are fabricated in factory first and then transported to the construction site. Because of the low out-of plane stiffness, corrugated steel webs are easy to deform in the construction, which brings many difficulties for construction. The precision of installing the corrugated steel web has a direct effect on the cross-section shape of the box-girder. So it is a key step to monitor the orientation and installation of corrugated steel web during construction. Based on the experience of some PC box-girder bridges with corrugated steel webs having been built, a method to control the installation accuracy of corrugated steel webs is proposed and some quality assurance measures are introduced in order to ensure the accuracy, reliability and security of the installation of corrugated steel web. The method can be taken as a reference in the construction of this kind of bridge.

scholarly journals Parametric Analysis of Single-Cell Box Girder Bridge

2021 ◽  
Vol 1197 (1) ◽  
pp. 012047
Author(s):  
R. Manjula ◽  
A. Amrutha
Keyword(s):  
Cost Saving ◽  
Parametric Analysis ◽  
Shear Force ◽  
Paper Analysis ◽  
Bending Moments ◽  
Box Girders ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Girder Bridge

Abstract Bridges based on box girders concept are extensively utilized for their cost saving solution for different passages & viaducts that are seen in the present day highway systems. The behavior of box girder bridges is analyzed for stresses in longitudinal and transverse directions. In this paper, analysis of three different box girders has been carried out using SAP2000 as per Indian Road Congress(IRC) provisions for rectangular and trapezoidal sections. The behaviors of box girders with uniform depth and varying widths have been analyzed. A parametric study is conducted for various parameters like bending moments, axial force & shear force using SAP2000.

Estimation of Structural Safety for Internally Grouted Post-tensioned External Tendons

2017 ◽  
Author(s):  
Yeun Chul Park ◽  
Ho-Kyung Kim ◽  
Chul-Hwan Yoo ◽  
Suk-Hee Bong
Keyword(s):  
South Korea ◽  
Structural Safety ◽  
Draft Guideline ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
External Tendons ◽  
Medium Risk ◽  
Box Girder Bridge ◽  
Girder Bridge

In February, 2016, one of the external tendons in pre‐stressed concrete (PSC) box girder bridge in Seoul was failed due to corrosion after 17 years of service. The failure was found during the thawing season regular inspection. Since it was the first tendon failure occurred in South Korea, in‐depth investigation was performed and found that multiple tendons were corroded at many different locations. Seoul City had been preparing for the maintenance of PSC box girder bridges, but the draft maintenance guideline considered overall condition of the bridge and little attention was paid to the condition of tendons. The bridge was evaluated as per the draft guideline and rated as ‘Medium Risk’ although one external tendon was failed. The indices for the evaluation should be properly weighted to prevent failure of tendons.

Bracing for composite box girder bridges

1984 ◽  
Vol 11 (4) ◽  
pp. 844-853 ◽  
Author(s):  
Fernando A. Branco ◽  
Roger Green
Keyword(s):  
Torsional Stiffness ◽  
Scale Model ◽  
Box Girders ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Finite Strip ◽  
Girder Bridges ◽  
Open Section ◽  
Box Beams ◽  
Construction Loads

For steel–concrete composite box girder bridges, the steelwork is generally erected first and then the concrete deck cast. During construction the girder may be subjected to a variety of construction loads. If the girder is a flexible open section, and lacks distortional or torsional stiffness, the cross section will deform or twist excessively; such difficulties with box girder construction have been reported. Bracing systems should be installed to increase the torsional and distortional stiffness of the open section during construction. A finite strip analysis of the influence of bracing systems on open section box girders is presented and compared with test results obtained using a one-quarter scale model. With the analysis, the influence of ties, distortional bracing, torsion boxes, and top chord bracing on the behaviour of torsionally open box girders is examined. Simplified design methods are also presented whereby the bracing forces and the stresses arising from the distortion of the section can be computed. Key words: bridges (box girder), bridges (steel), box beams, torsional distortion, bending distortion, bracing, construction safety.

Study on the Diaphragm Effect of the Beam Type Bridge

2013 ◽  
Vol 351-352 ◽  
pp. 675-678
Author(s):  
Liu Yang ◽  
Zhi Da Li ◽  
Rong Peng
Keyword(s):  
Force Analysis ◽  
Design Code ◽  
Bridge Design ◽  
Box Girder ◽  
Analysis And Design ◽  
Straight Beam ◽  
Beam Type ◽  
Girder Bridge ◽  
Beam Bridge ◽  
T Beam

Our country bridge design code prescribe beam bridge often set the diaphragm to strengthen transverse connection. However, many countries think the beam bridge can reduce or do not set diaphragm. This paper respectively analyzed the deflection and stress of straight T beam bridge and curved box girder bridge with or without diaphragm, further demonstrated the diaphragm settings are necessary in straight beam bridge and curved beam bridge, especially when the vehicle and bridge width gradually increase, the diaphragm right force analysis and design becomes more and more important, it become an important part of the whole bridge design.

scholarly journals Load Distribution In Adjacent Precast "Deck Free" Concrete Box-Girder Bridges

2021 ◽  
Author(s):  
Waqar Khan
Keyword(s):  
Prestressed Concrete ◽  
Precast Concrete ◽  
Box Girders ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Concrete Box Girder ◽  
Concrete Box Girder Bridges ◽  
Girder Bridge ◽  
The Moment

Bridges built with adjacent precast, prestressed concrete box-girders are a popular and economical solution for short-span bridges because they can be constructed rapidly. The top flanges of the precast box girders form the bridge deck surface. A shear key is introduced between the adjacent boxes over the depth of the top flange (i.e. 225 mm thick as the thickness of the box's top flange). Canadian Highway Bridge Design Code, CHBDC specifies empirical equations for the moment and shear distribution factors for selected bridge configurations but not for adjacent precast concrete box-girder bridge type. In this study, a parametric study was conducted, using the 3D finite-element modeling, and a set of simplified equations for the moment, shear and deflection distribution factors for the studied bridge configuration was developed.

Free vibration behaviour of thin-walled concrete box-girder bridge using Perspex sheet experimental model

2021 ◽  
Vol 2 (106) ◽  
pp. 56-76
Author(s):  
V. Verma ◽  
K. Nallasivam
Keyword(s):  
Finite Element ◽  
Free Vibration ◽  
Curved Bridges ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Thin Walled ◽  
Concrete Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

Purpose: Curved box-girder bridges offers an excellent solution to the problems associated with traffic congestion. However, owing to their complex geometry, they are subjected to shear lag, torsional warping and cross-sectional distortion, which must be assessed in their study and design. Furthermore, the dynamic behaviour of curved bridges adds to the complexity of the issue, emphasizing the importance of studying free vibration. The purpose of this study is to numerically model the concrete curved box-girder bridge considering torsional warping, distortion and distortional warping effects and to identify key parameters that influence the free vibration response of the box-girder bridge by validating it with experimental and analytical studies. Design/methodology/approach: The concrete bridge is numerically modelled by means of computationally effective thin-walled box-beam finite elements that consider torsional warping, distortion and distortional warping, which are prominent features of thinwalled box-girders. The free vibration analysis of the concrete curved box-girder bridge is performed by developing a finite element based MATLAB program. Findings: The identification of critical parameters that influence the free vibration behaviour of curved thin-walled concrete box-girder bridges is one of the main findings of the study. Each parameter and its effect has been extensively discussed. Research limitations/implications: The study limits for the preliminary design phase of thin-walled box-girder bridge decks, where a complete three-dimensional finite element analysis is unnecessary. The current approach can be extended to future research using a different method, such as finite element grilling technique on multi-span curved bridges having unequal span.

Analysis of Effection of the Prestressing Force on Shear Lag in Curved Box Girder

2010 ◽  
Vol 150-151 ◽  
pp. 1022-1025
Author(s):  
Yu Hong Zhang ◽  
Jian Shun Zhang
Keyword(s):  
Impact Factors ◽  
Shear Lag ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Prestressing Force ◽  
Structural Force ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
The Impact

The impact on curved box girder bridges due to applying prestressing force have been analyzed using finite element method. This paper presents the results of an experimental investigation and analytical studies. Based on the model experiment, the results and conclusions of shear lag in curved box girder with prestressing force are presented that prestressing force has changed shear lag distribution. The prestressing force action on box girder shall be considered comprehensively, structural force shall be analyzed accurately, optimize prestressing tendons shall be set rationally which would make force more rationally. The results highlighted that the impact factors of a curved box girder bridge have been observed to be generally very high, while those of the other responses are also relatively higher than that of corresponding straight box girder bridge.

Study of the Effect on Efficiency of External Prestressing and Economy to Box-Girder Bridge with Different Styles of Webs

2012 ◽  
Vol 256-259 ◽  
pp. 1605-1608
Author(s):  
Jin Song Zhu ◽  
Jian Feng Li
Keyword(s):  
Life Cycle Cost ◽  
Quantitative Research ◽  
Design Method ◽  
Structural Performance ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
External Prestressing ◽  
Box Girder Bridge ◽  
Girder Bridge

Prestressed box-girder bridges have been applied in modern bridges widely as the perfect structural performance, the design method and calculation theory of prestressed box-girder bridges have been relatively perfect. The self-weight of box-girder bridges is reduced during the process of development from concrete structure to composite structure. The prestressed efficiency and the economy are also improved, simultaneously. But up to now, the quantitative research of the effect on efficiency of external prestressing to box-girder bridge with different styles of webs is lack. This paper illustrates the effect on efficiency of external prestressing and economy to box-girder bridge with different styles of webs. The results show that the box-girder bridge with corrugated steel webs has the highest prestressed efficiency and the lowest life cycle cost and the best economy.

scholarly journals Load Distribution In Adjacent Precast "Deck Free" Concrete Box-Girder Bridges

2021 ◽  
Author(s):  
Waqar Khan
Keyword(s):  
Prestressed Concrete ◽  
Precast Concrete ◽  
Box Girders ◽  
Box Girder Bridges ◽  
Box Girder ◽  
Girder Bridges ◽  
Concrete Box Girder ◽  
Concrete Box Girder Bridges ◽  
Girder Bridge ◽  
The Moment

Bridges built with adjacent precast, prestressed concrete box-girders are a popular and economical solution for short-span bridges because they can be constructed rapidly. The top flanges of the precast box girders form the bridge deck surface. A shear key is introduced between the adjacent boxes over the depth of the top flange (i.e. 225 mm thick as the thickness of the box's top flange). Canadian Highway Bridge Design Code, CHBDC specifies empirical equations for the moment and shear distribution factors for selected bridge configurations but not for adjacent precast concrete box-girder bridge type. In this study, a parametric study was conducted, using the 3D finite-element modeling, and a set of simplified equations for the moment, shear and deflection distribution factors for the studied bridge configuration was developed.

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