Print Email Facebook Twitter Shear capacity of a novel joint between corrugated steel web and concrete lower slab Title Shear capacity of a novel joint between corrugated steel web and concrete lower slab Author Wang, Sihao (Tongji University) He, Jun (Changsha University of Science and Technology) Liu, Yuqing (Tongji University) Li, Chuanxi (Changsha University of Science and Technology) Xin, H. (TU Delft Steel & Composite Structures; Tongji University) Date 2018-02-28 Abstract Composite girder with corrugated steel web is one of the promising concrete-steel hybrid structures with superior properties and cost effectiveness widely applied in highway and railway bridges. The connection between concrete slabs and corrugated steel web is an important part of such composite structure. In order to improve pouring quality and durability of concrete for joint structure between corrugated steel webs and concrete lower slab, the validity of placing lower slab on the inner side of corrugated steel webs was confirmed and a new joint structure with perforated plate connectors was proposed. Push-out tests on proposed joint structure with different parameters including the welding width and the plate thickness were carried out to study their shear strength, shear stiffness, failure modes and relative slip characteristics. Subsequently, three-dimensional finite element models taking material non-linearity and nonlinear contact between steel and concrete interface into consideration were built and validated by the push-out tests. Afterwards, parametric studies were performed to further investigate the influences of geometrical parameters (such as width, height and thickness of perforated steel plate) and material parameters including steel yielding strength and concrete compressive strength on ultimate shear strength and failure mode of the joint structure. Analytical results indicate that the shear loading capacity is increased with the thickness, the width and height of perforated plate, and the compressive strength of concrete. However, steel yielding strength, presence or absence of perforating rebar, have a negligible effect on ultimate shear strength of the joint structure. Finally, prediction equations of shear capacity were provided and compared with experimental and numerical results. The calculated shear capacity agrees well with experimental and numerical ones, indicating provided analytical equations can accurately predict shear capacity for such novel joint structure. Subject Composite girderCorrugated steel webFinite element analysisJoint structurePush-out testsShear capacity To reference this document use: http://resolver.tudelft.nl/uuid:4f87a746-5088-4fc2-b711-15c50be2411b DOI https://doi.org/10.1016/j.conbuildmat.2017.12.114 Embargo date 2020-02-29 ISSN 0950-0618 Source Construction and Building Materials, 163, 360-375 Part of collection Institutional Repository Document type journal article Rights © 2018 Sihao Wang, Jun He, Yuqing Liu, Chuanxi Li, H. Xin Files PDF Shear_capacity_of_a_novel ... _copy_.pdf 1.53 MB Close viewer /islandora/object/uuid:4f87a746-5088-4fc2-b711-15c50be2411b/datastream/OBJ/view