Journal ArticleDOI
Estimation of Collapse Load of Single-Cell Concrete Box-Girder Bridges
Babu Kurian,Devdas Menon +1 more
TLDR
In this article, the authors proposed a modification to the existing theory, incorporating an empirical expression to assess the extent of corner plastic hinge formation, under distortion-bending collapse mechanism, and compared the modified theoretical formulations with the experimental results available in the literature.Abstract:
The simplified equations available at present to predict the collapse loads of single-cell concrete box-girder bridges with simply supported ends are based on either space truss analogy or collapse mechanisms. Experimental studies carried out by various researchers revealed that, of the two formulations available to predict the collapse load, the one based on collapse mechanisms is found to be more versatile and better suited to box sections. Under a pure bending collapse mechanism, the existing formulation is found to predict collapse load with high accuracy. However, in the presence of cross-sectional distortion, there are significant errors in the existing theoretical formulation. This paper attempts to resolve this problem, by proposing a modification to the existing theory, incorporating an empirical expression to assess the extent of corner plastic hinge formation, under distortion–bending collapse mechanism. The modified theoretical formulations are compared with the experimental results available in the literature. New sets of experiments are also conducted to validate the proposed modified theory to estimate the collapse load. In all cases, it is seen that the modified theory to predict the collapse load match very closely with the experimental results.read more
Citations
More filters
Journal ArticleDOI
Structural Redundancy of Prestressed Concrete Box Girder Bridges
TL;DR: In this paper, the redundancy of prestressed concrete box girder bridges under vertical loads and lateral loads was evaluated by using frame and grillage models in SAP2000, and the results were validated by more advanced finite element models.
Journal ArticleDOI
Structural Behavior of Reinforced Concrete Horizontally Curved Box Beam with Opening
TL;DR: In this article , the structural reinforced concrete's behavior of horizontally curved box beams with and without opening has been surveyed and the results indicate that the ultimate load capacity was decreased for all specimens (CB2.V37, CB3.V60, CB4.V82, CB5.T37,CB6.T60 and CB7.T82).
Journal ArticleDOI
Numerical and experimental modeling of the static response of simply supported thin-walled box girder bridges
TL;DR: In this article, the static response of thin-walled reinforced concrete box girder bridges is modeled using finite-strip analysis and the effect of flange width on static response under service load from experimental and numerical studies.
Dissertation
Studies on major elements of an elevated metro bridge
TL;DR: In this article, the authors focused on two major elements, pier and box girder, of an elevated metro structural system and performed a parametric study on the performance of three types of box girders.
Journal Article
Parametric Study Of Curved Span PSC Box Girder Bridges As Per IRC: 112: 2011
TL;DR: In this article, a Parametric Study on Curved Span Box Girder Bridges considering the curved geometry for analysis and IRC: 112 CODE OF PRACTICE for CONCRETE ROAD BRIDGES for the design is performed.
References
More filters
Book
Limit Analysis and Concrete Plasticity
TL;DR: In this paper, the authors present the solution of plasticity problems in rigid-plastic materials, including reinforced concrete structures, using the Elastic Theory of Plasticity (ELT).
Journal ArticleDOI
BEF Analogy for Analysis of Box Girders
TL;DR: In this article, an analysis for a box girder cell with deformable cross section and flexible interior diaphragms is developed using an analogy to the theory of beams on elastic foundations.
Book ChapterDOI
Ultimate Strength and Design of Reinforced Concrete Beams in Torsion and Bending
Paul Lampert,Bruno Thürlimann +1 more
TL;DR: In this paper, the authors developed a failure model for reinforced and prestressed concrete beams applicable to general cross sectional shapes including on one side small solid sections used in buildings, on the other side large sections such as box sections occurring in prestressed reinforced concrete bridges.
Journal ArticleDOI
State-of-the-art in design of curved box-girder bridges
Khaled Sennah,John B. Kennedy +1 more
TL;DR: In this paper, the authors provide highlights of the most important references related to the development of current guide specifications for the design of straight and curved box-girder bridges, including the construction phase, load distribution, dynamic response, and ultimate load response.
Related Papers (5)
Approximate method for estimation of collapse loads of steel cable-stayed bridges
Hoon Yoo,Ho Sung Na,Dong-Ho Choi +2 more
Analytical Approach to Collapse Mechanisms of Circular Masonry Arch
C. Blasi,Paolo Foraboschi +1 more