5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

Ninth International Conference on Advances in Steel Structures (ICASS 2018)


PRACTICAL NONLINEAR INELASTIC ANALYSIS METHOD OF 3D COMPOSITE STEEL-CONCRETE FRAMEWORKS

Stefan M. Buru 1 and Cosmin G. Chiorean 1*

1 Department of Structural Mechanics, Technical University of Cluj-Napoca, Romania

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DOI:10.18057/ICASS2018.P.139

ABSTRACT:

A second-order flexibility based model has been developed for advanced analysis of 3D composite steel-concrete frameworks with partial composite action. Both distributed plasticity and element geometrical effects are modeled by combining the Maxwell-Mohr rule and the second-order force based functions for the derivation of the force-displacement relationship at the element level. The proposed model allows efficient modeling of the combined effects of nonlinear geometrical effects, spread-of-plasticity, partial shear connection of composite beams, finite-size joints and joint flexibility by using only one 2-noded beam-column element per physical member. The proposed nonlinear inelastic analysis formulation has been implemented in a general nonlinear static purpose computer program, NEFCAD. An advanced FEM model has been developed in Abaqus software considering a combination of three-dimensional solid elements (for concrete volumes) and shell elements for steel elements allowing also the partial composite action between the steel beam and concrete slab. Several computational examples are given to validate the accuracy and reliability of the proposed method.

Keywords:

Nonlinear inelastic analysis; Flexibility-based element; Distributed plasticity; Partial composite action; Advanced analysis

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IMPORTANT DATES

First call for paper:
1 January 2018
Abstract submission: (CLOSED)
1 April 2018
Notification of abstract acceptance:
on or before 16 April 2018 
Full paper submission: 
15 July 2018
Online Registration Begins:
1 August 2018
Notification of full paper acceptance:
31 August 2018
Early bird registration:
on or before 7 September 2018
Online Registration Closes:
31 October 2018
Announcement of programme:
1 November 2018
ICASS2018 December 05, 2018 08:00 AM