Failure Modes Analysis of Stone Arch Bridges

Song Jun,Shi Kang,Wang Fumin

doi:10.2174/1874149501509010442

Abstract

A destruction test based on the bridge safety appraisal is one way to verify the failure law of an actual bridge. In this paper, a stone arch bridge in a 1:10 scale model and with a span of 60 m (namely, an arch bar of the same length as the object of test) has been tested, methods of its whole test and loading process introduced, and ultimate bearing capacity, deflection and development rules of cracks in the loading process figured out. With the clarification of destruction mechanism, the ultimate forms of disease and remaining height of section have been acquired and, finally, the destruction theory of stone arch bridges has been verified and optimized.

Highlights

R In this paper, the safety appraisal of a stone arch bridge has been achieved through an overall destruction test
Condition assessment of masonry arch bridges generally relies on visual observation and on a limited range of diagnostic techniques, including destructive and nondestructing testing and monitoring methods [5]
As the main arch ring is so important to the stone arch bridge, it can be safely said that if a minute analysis of its

Summary

INTRODUCTION

R In this paper, the safety appraisal of a stone arch bridge has been achieved through an overall destruction test. Researchers have done many bridge damage test [6-10], for example, DesMoines River truss bridge ultimate load bearing capacity test, compared with theory and load test results, A retired Reinforced Concrete slab bridge is made a destructive test in the United States, it is proved that the elastic properties of the bridge without deterioration, but deteriorated dramatically reduces the carrying capacity of the bridge, and the Stoney Creek bridge has a destructive test, the experiment was designed to study the bridge in the limit state under lateral load distribution form These achievements are not discussed the relationship between the development of crack and bearing capacity of the structure. Outside China are mainly concentrated on the four- hinge destruction theory, and has made great progress [1-4]

Failure Pattern Analysis

EXPERIMENTAL

RESULTS AND DISCUSSIONS