Work

Ultimate strength behavior of steel-concrete-steel sandwich beams with ultra-lightweight cement composite, Part 2: Finite element analysis

Year: 2015

Type: article

Abstract: Ultra-lightweight cement composite (ULCC) with a compressive strength of 60 MPa and density of 1,450 kg/m3 has been developed and used in the steel-concrete-steel (SCS) sandwich structures. This paper investigates the structural performances of SCS sandwich composite beams with ULCC as filled material. Overlapped headed shear studs were used to provide shear and tensile bond between the face plate and the lightweight core. Three-dimensional nonlinear finite element (FE) model was developed for the ultimate strength analysis of such SCS sandwich composite beams. The accuracy of the FE analysis was established by comparing the predicted results with the quasi-static tests on the SCS sandwich beams. The FE model was also applied to the nonlinear analysis on curved SCS sandwich beam and shells and the SCS sandwich beams with J-hook connectors and different concrete core including ULCC, lightweight concrete (LWC) and normal weight concrete (NWC). Validations were also carried out to check the accuracy of the FE analysis on the SCS sandwich beams with J-hook connectors and curved SCS sandwich structure. Finally, recommended FE analysis procedures were given.

Source: Steel and Composite Structures

DOI: 10.12989/scs.2015.18.4.1001

Authors: Jia-Bao Yan, J.Y. Richard Liew, Min-Hong Zhang

Institution: National University of Singapore

Language: English

Topic: Structural Load-Bearing Analysis

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funders: American Bureau of Shipping, National University of Singapore, Maritime and Port Authority of Singapore

Awards: G2158410535, G4972785263, G894798988