SOIL PRESSURE MEASUREMENTS ON A MULTI-SPAN BRICK ARCH
J.I. Robinson, D A Ponniah, D.J. Prentice
Abstract
J.I. Robinson, D A Ponniah, D.J. Prentice
Abstract
This paper describes a series of tests performed on a multi-span brick arch at the University of Edinburgh, Scotland. This research is part of an ongoing investigation into soil/structure interaction in arch bridges. The bridge is a 2m double span brick arch which is backfilled with dry silica sand. Instrumentation was installed to measure the normal and shear pressures on the arch extrados, the vertical pressure within the fill and the deflection of the brick arches. A patch and a strip load were applied to simulate the effects of a wheel and an axle load respectively. The soil pressures were compared to the Boussinesq method stress distribution and reasonable correlation has been obtained. In addition, the results are also compared to previous tests on a similar single span arch and it is shown that the behaviour is significantly different. For the covering abstract see ITRD E111699.
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This paper describes a series of tests performed on a multi-span brick arch at the University of Edinburgh, Scotland. This research is part of an ongoing investigation into soil/structure interaction in arch bridges. The bridge is a 2m double span brick arch which is backfilled with dry silica sand. Instrumentation was installed to measure the normal and shear pressures on the arch extrados, the vertical pressure within the fill and the deflection of the brick arches. A patch and a strip load were applied to simulate the effects of a wheel and an axle load respectively. The soil pressures were compared to the Boussinesq method stress distribution and reasonable correlation has been obtained. In addition, the results are also compared to previous tests on a similar single span arch and it is shown that the behaviour is significantly different. For the covering abstract see ITRD E111699.
Key concepts: Arch, Geotechnical engineering, Brick, Lateral earth pressure, Structural engineering, Engineering, Span (engineering), Arch bridge