Reliability analysis of highway bridge structures considering ultimate load effects

2012 ◽  
pp. 640-647
Author(s):  
L McCarthy ◽  
C Caprani
Keyword(s):  
Reliability Analysis ◽  
Ultimate Load ◽  
Highway Bridge ◽  
Bridge Structures ◽  
Load Effects

Dynamic testing of a corrugated steel arch bridge

2008 ◽  
Vol 35 (3) ◽  
pp. 246-257 ◽  
Author(s):  
Zbigniew Manko ◽  
Damian Beben
Keyword(s):  
Vibration Frequency ◽  
Dynamic Load ◽  
Critical Speed ◽  
Dynamic Testing ◽  
The Other ◽  
Steel Plates ◽  
Highway Bridge ◽  
Dynamic Coefficients ◽  
Bridge Structures ◽  
Load Tests

The paper presents the results and conclusions of dynamic load tests that were conducted on a highway bridge over the Gimån River in Sweden made of Super Cor corrugated steel plates (CSP), the first bridge of this type in Scandinavia. The critical speed magnitudes, dynamic coefficients, velocity vibration, and vibration frequency are determined in the paper. Conclusions drawn from the tests can be most helpful in the assessment of the behaviour of this type of corrugated plate – soil bridge. In consideration of the application of this type of structure in the case of small-to-medium span bridges, the conclusions from this research cannot yet be generalized to all types of such solutions. The application details with respect to all types of such bridge structures would require additional analysis (field and model tests and calculations) on the other types of soil–steel bridges.

Calibration of the Ontario Highway Bridge Design Code 1991 edition

1994 ◽  
Vol 21 (1) ◽  
pp. 25-35 ◽  
Author(s):  
Andrzej S. Nowak ◽  
Hid N. Grouni
Keyword(s):  
Reinforced Concrete ◽  
Reliability Analysis ◽  
Prestressed Concrete ◽  
Highway Bridge ◽  
Live Load ◽  
Design Code ◽  
Reliability Indices ◽  
Resistance Factors ◽  
Load And Resistance Factors ◽  
Selection Of

The paper describes the calculation of load and resistance factors for the Ontario Highway Bridge Design Code (OHBDC) 1991 edition. The work involved the development of load and resistance models, the selection of the reliability analysis method, and the calculation of the reliability indices. The statistical models for load and resistance are reviewed. The considered load components include dead load, live load, and dynamic load. Resistance models are developed for girder bridges (steel, reinforced concrete, and prestressed concrete). A reliability analysis is performed for selected representative structures. Reliability indices are calculated using an iterative procedure. The calculations are performed for bridge girders designed using OHBDC 1983 edition. The resulting reliability indices are between 3 and 4 for steel girders and reinforced concrete T-beams, and between 3.5 and 5 for prestressed concrete girders. Lower values are observed for shorter spans (up to 30–40 m). The acceptance criterion in the selection of load and resistance factors is closeness to the target reliability level. The analysis confirmed the need to increase the design live load for shorter spans. Partial resistance factors are considered for steel and concrete. The criteria for the evaluation of existing bridges are based on the reliability analysis and economic considerations. Key words: bridge code, calibration, load factor, resistance factor, reliability index.

Thermo-Structural Response of Highway Bridge Structures with Tub Girders and Plate Girders

2017 ◽  
Vol 22 (10) ◽  
pp. 04017069 ◽  
Author(s):  
Mohammad N. H. Nahid ◽  
Elisa D. Sotelino ◽  
Brian Y. Lattimer
Keyword(s):  
Structural Response ◽  
Highway Bridge ◽  
Plate Girders ◽  
Bridge Structures

Loading Correlation for Reliability Analysis of Reinforced Concrete Columns

2011 ◽  
Vol 243-249 ◽  
pp. 396-405
Author(s):  
Chang Hui Tang ◽  
You Cheng Yang
Keyword(s):  
Reinforced Concrete ◽  
Reliability Analysis ◽  
Axial Compression ◽  
Limit State ◽  
Mathematical Expression ◽  
State Function ◽  
Load Path ◽  
Rc Columns ◽  
Correlation Relationship ◽  
Load Effects

A major difficulty in reliability analysis of reinforced concrete (RC) columns subjected to both axial compression and bending moments is the interaction between strength of bending and axial compression. In particular, the limit state function cannot be explicitly expressed due to this interaction. This paper analyzes the correlation between load effects. Given the calibration point, a mathematical expression for the load correlation, rMN, in terms of eccentricity of dead load and live load, eG and eQ, is established, which physically clarifies the relationship of rMN with load path. Given the ratio of eccentricity k = eG/eQ and the ratio of load effects r, the reliability analysis for RC columns with considering the correlation between load effects can be analyzed by using the correlation relationship proposed in this study and FORM method. This study provides an effective and practical approach to the reliability analysis.

Structural System Reliability Analysis for a Self-Anchored Suspension Bridge

2012 ◽  
Vol 166-169 ◽  
pp. 1868-1871
Author(s):  
Bao Chu Yu ◽  
Sheng Yong Li
Keyword(s):  
Reliability Analysis ◽  
System Reliability ◽  
Suspension Bridge ◽  
Suspension Bridges ◽  
Complex Structures ◽  
Structural Elements ◽  
Structural System ◽  
Structural System Reliability ◽  
Bridge Structures ◽  
Bridge Reliability

A self-anchored suspension bridge is analyzed for its structural system reliability, and the bridge reliability is relatively high under vehicular load. Through seeking the distinct structural system fault modes the relatively weak structural elements can be identified, which can be the basis on its reasonable design and offer the reference to the analysis for the similar bridge structures. The results verify that the global -Unzipping method and the improved difference equivalent recursion algorithm is efficient and applicable for system reliability evaluation of the complex structures such as self-anchored suspension bridges.

LRFD Design and Construction of Shallow Foundations for Highway Bridge Structures

2010 ◽  
Author(s):  
Samuel G. Paikowsky ◽  
Mary C. Canniff ◽  
Kerstin Lesny ◽  
Aloys Kisse ◽  
Shailendra Amatya ◽  
...  
Keyword(s):  
Shallow Foundations ◽  
Highway Bridge ◽  
Bridge Structures ◽  
Design And Construction

Study on Condition Assessment of Highway Bridge, Normal-Speed and High-Speed Railway Bridge

2011 ◽  
Vol 328-330 ◽  
pp. 1026-1030
Author(s):  
Zhao Lan Wei ◽  
Qian Hui Pu ◽  
Bin Li Wang
Keyword(s):  
Index System ◽  
High Speed ◽  
Condition Assessment ◽  
Highway Bridge ◽  
Railway Bridge ◽  
High Speed Railway ◽  
Evaluation Indexes ◽  
Large Span ◽  
Bridge Structures ◽  
Normal Speed

There are lots of theories and methods about condition assessment for highway bridge, and gradual perfection for normal-speed railway bridge, but only little for high-speed railway bridge, especially large-span and special structures. After studying on the contents, methods, theories and evaluation indexes of highway bridge and normal-speed railway bridge, combined with the characteristics of high-speed railway bridge, index system for high-speed railway bridge(medium and small span, large-span or special bridge structures) was conceived and discussed, which laid the foundation for the development of condition assessment of high-speed railway bridge.

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