Dowel design - cticm

Typical Precobeam element(1) Steel flange: Absorbs stresses from bendingmoments and provides cross-section stiffness.(2) Steel web: Transmission of longitudinal shear forces,ensures steel flange – concrete web distance whereneeded (e.g. to avoid concrete cracking).(3) Composite dowel: Transmit longitudinal shear forcesbetween concrete and steel.(4) Prefabricated concrete web: designed uponstructural demands and is reinforced with the externalsections.(5) Prefabricated concrete plate: 10-12cm thickconcrete-plate which serves as formwork and scaffoldingfor the in-situ concrete and is designed for loads fromconstructions stages.(6) In situ concrete plate: It completes the prefabricatedconcrete-plate and is designed upon structural needs forthe crucial load combinations in the final stages.(7) In situ Longitudinal reinforcement: It is assembledwithin the in-situ concrete-slab for the final constructionstage.(8) Precast Longitudinal reinforcement: designed uponstructural needs for loads from construction stage(s).(9) Transversal shear reinforcement: designed uponstructural needs from transversal shear under specialconsideration of dowel action.(10) Confinement reinforcement: designed uponapproaches from local dowel action. It is essential toensure a ductile load bearing behaviour.15/10/2012 Recent developments 4