Application of Spatial Structures in Bridges Deck

Mohammad Hossein Taghizadeh, Alaeddin Behravesh

Abstract


Spatial structure is a truss-like, lightweight and rigid structure with a regular geometric form. Usually from these structures is used in covering of long-span roofs. But these structures due to the lightness, ease and expedite of implementation are a suitable replacement for bridge deck. However steel and concrete is commonly used to build bridge deck, but heavy weight of steel and concrete decks and impossibility of making them as long-span bridge deck is caused engineers to thinks about new material that besides lightness and ease of implementation, provide an acceptable resistance against applied loads including both dead load and dynamic load caused by the passage of motor vehicles. Therefore, the purpose of this paper is design and analysis bridge deck that’s made of double-layer spatial frames compared with steel and concrete deck. Then allowable deflections due to dead and live loads, weight of bridge in any model and also economic and environmental aspects of this idea is checked. As a result, it can be said that the use of spatial structures in bridge deck is lead to build bridge with long spans, reducing the material and consequently reducing the structural weight and economic savings. For geometric shape of the spatial structure bridge is used of Formian 2.0 software and for analysis of bridges is used of SAP2000 with finite element method (FEM).

Keywords


Spatial Structures, Bridge Deck, Steel and Concrete Deck, Finite Element Method, Deflection

References


Reis, A.J., "Bridge decks: composite systems for improved aesthetics and environmental impact" , Proceedings of the 3rd International Meeting., Colegio de Ingenieros de Caminos, Canales y Puertos, Madrid, (2001).

Fu, G., "Bridge design and evaluation" , John Wiley & Sons, Inc, (2013).

Braz, J., "Composite truss bridge decks" , Instituto Superior Técnico, TU Lisbon, (2009).

Dauner, H.G. Decorges, G. Oribasi, A and Wéry, D., "The Lully Viaduct, a Composite Bridge with Steel Tube Truss" , Journal of Constructional Steel Research, (1998): 55-68.

Reis, A. Pedro O. and José J., "Composite Truss Bridges" , Steel Construction, new trends, design and research journal, Wiley, (2011).

Makowski, Z.S., "Analysis, Design and Construction of Double Layer Grids" , Granada Publishing Ltd, London and New York, (1981): 1-85.

Koushky, A.L. Dehdashty, G. and Firouz, A., "Nonlinear Analysis of Double Layer Grids with Composite Nodes under Symmetric and Unsymmetric Gravity Loads" , International Journal of Space Structures, Vol. 22. No. 2, (2007): 133-140.

Sheidaii, M.R. Abedi, K. and Behravesh, A., "An Investigation into the Collapse Behavior of Double Layer Grid Space Structures" , Proceeding of the LUSAS User Conference, London. England, (2000).

Sheidaii, M.R. Abedi, K. and Behravesh, A., "Collapse Behavior of Double Layer Space Trusses" , Proceeding of the IASS Symposium on Theory, Design and Realization of Shell and Spatial Structures, Nagoya, Japan, (2001).

Sheidaii, M.R. Abedi, K. and Behravesh, A., "An Investigation into the Collapse Behavior of Double Layer Space Trusses" , Iranian Journal of Science and Technology, Transaction B, Vol. 27, (2003).

American Association of State and Highway Transportation Officials (AASHTO)., "LRFD Bridge Design Specifications", 6th ed. AASHTO. Washington DC, (2012).

Cohen, H. Truck Weight Limits: Issues and Options, Special Report 225., "Transportation Research Board" , National Research Council, Washington DC, (1990).

Taniguchi, Y. and Saka, T., "Effect of Covering Plates on Buckling Behaviour of Double Layer Grids" , Proceeding of Asia-Pacific Conference on Shell and Spatial Structures, Edited by Tien T.LAN, (1996): 611-618.

Supple, W. J. and Collins, I., "Limit State Analysis of Double-Layer Grids" , Design and Construction of Double Layer Grids. Makowski, Applied Science Publisher, London, (1981): 93-117.

Levi, R. Hanaor, A. and Rizzuto, N., "Experimental Investigation of Prestressing in Double Layer Grids" , International Journal of Space Structures, Vol. 9. No. 1, (1994): 21-26.


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Copyright (c) 2015 Mohammad Hossein Taghizadeh, Alaeddin Behravesh

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