Bridges With Lightweight Aggregate Concrete Structures

Ainars Paeglitis, Genadijs Sahmenko

Abstract


Traditionally the lightweight aggregate concrete (LWAC) has been applied in buildings for many years. The improvement of the technology of production, mix composition and execution has considerably changed the nowadays LWAC properties. The uses of various admixtures have increased the strength, stress-strain modulus and decreased the creep that allowed the use of LWAC for the hardly loaded bridge structures worldwide. The paper describes the experience of use of LWAC for bridge structures in Latvia. The obtained results showed that the use of high-strength LWAC will decrease the dead load of bridge structures without reduction of load-carrying capacity. In many cases the use of LWAC will help the reconstruction and widening of the existing bridge structures.


Keywords:
concrete; lightweight aggregate; bridge

Full Text:

 PDF

References


EUROLIGHTCON Structural LWAC – Specification and Guidelines for Materials and Production, Document BE96-3942/MG/xx, 2001.

fib BULLETIN No 8, Lightweight Aggregate Concrete, 2000. 362 p.

Lightweight Concrete. History. Application. Economics. Expanded Shale Clay and Slate Institute, 1967. 44 p.

Paeglitis, A.; Lieckalninsh, A.; Jurka, I. Rehabilitation of a Historical Bridge Over the Abava River in Latvia. In: Proceedings of 5th Intern Conf “Developments in Short and Medium Span Bridge Engineering ‘98” Calgary, Canada 1998, p. 1201–1208.

Paeglitis, A.; Zvejnieks, V.; Sahmenko, G. Light Weight Concrete Application in Latvian Bridges. In: Proceedings of fib Symposium “Concrete Structures – the Challenge of Creativity” , 2004, Avignon, France. p. 6.

Hosaka, T.; Umehara, T.; Nakamura, S.; Nishiumi, K. Design and Experiments on a New Railway Bridge System Using Concrete Filled Steel Pipes. In: Proceeding of IABSE Conf “Composite Construction – Conventional and Innovative”, Insbruck, Austria, 1997, p. 367–372.

Yan, G. Composite Arch Bridges Developed in China. In: Proceedings of IABSE Conf “Composite Construction – Conventional and Innovative”, X Insbruck, Austria, 1997, p. 513–519.

Paeglitis, A. Extension of Lifetime of Multi-span Concrete Arch Bridge. In: Proceedings of IABSE Symposium “Towards a Better Built Environment – Innovation, Sustainability, Information Technology”, Melbourne, Australia, 2002, p. 8.


Refbacks

  • There are currently no refbacks.


Copyright (c) 2006 Vilnius Gediminas Technical University (VGTU) Press Technika