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At the steel-concrete interface, the horizontal shear forces that are transverse to cross beams occur due to joint action of the steel-concrete composite deck and the truss girders. Numerical analysis showed that values of the forces are big in comparison to the longitudinal shear forces. In both cases extreme force values occur near side edges of a slab. The paper studies possibilities of reduction of these shear forces by structural alterations of the following: rigidity of a concrete slab, arrangement of a wind bracing, arrangement of concrete slab expansion joints. An existing railway truss bridge span has been analysed. Numerical analysis shows that it is possible to reduce the values of shear forces transverse to cross beams. It may reach 20% near the side edges of slabs and 23% in the centre of slab width.

interesting parts of the design process for the specific case. Namely, time dependent properties of the materials have been considered, and extensive “staged construction” analyses have been carried out to ensure safety in each phase of the complex life of the bridges, while at the same time guaranteeing significant cost savings. Keywords: steel-concrete composite deck, FE analysis, seismic isolation, time-dependent material properties, staged construction 1. INTRODUCTION The two viaducts share the same cross section and statical scheme, while differing

CIVIL AND ENVIRONMENTAL ENGINEERING REPORTS ISSN 2080-5187 CEER 2017; 27 (4): 077-090 DOI: 10.1515/ceer-2017-0052 Original Research Article PARAMETRIC ANALYSES OF DYNAMIC CHARACTERISTIC OF THE CABLE-STAYED PEDESTRIAN BRIDGE Marek PAŃTAK1, Bogusław JAREK Cracow University of Technology, Kraków, Poland A b s t r a c t The paper presents characteristics of the structural system and results of dynamic field tests and numerical parametric analyses of three-span, two-pylon, cable-stayed pedestrian bridge with steel-concrete composite deck and spans

) “Experimental Investigation on Shear Connectors in Steel-concrete Composite Deck Slabs” , Indian Journal of Science and Technology, Vol. 9(30), pp. 1-8. 9. D.Kisala and K.Furtak, (2016) “The Assessment of the Slip Influence on the Deflection of Steel Plate - Concrete Composite Beams”, Archives of Civil Engineering, Vol. LXII, ISSUE 2, 2016. 10. IS:11384-1985 Indian Standard Code of Practice for Composite Construction in Structural Steel and Concrete. 11. IS 10262:2009 Indian Standard Concrete Mix Proportioning - Guidelines (First Revision). 12. IS 383-1970 (Reaffirmed 2002