A 2d Frame Element Taking Into Account Semi-Rigidity At Column Bases, Brace Ends Beam To Column Connections In Steel Structures

Date

2017-10-05

Author

Özel, Halil Fırat
Sarıtaş, Afşin

Metadata

Show full item record

Item Usage Stats

216
views

0
downloads

In this paper, a force-based 2D frame element formulation with spread of inelasticity through the element and localized semi-rigid connections at beam, brace and column base regions is presented. Inelasticity along member lengths is captured through fiber discretization of monitoring sections; furthermore, defining any type of semi-rigid connection along element length does not require introduction of additional nodes and degrees of freedom to the system. An accurate shear correction coefficient for wide flange sections is also taken into account in order to get closer match of shear effects with respect to exact solutions. The proposed element is designated for the performance based analysis of steel structures, since considering the presence of semi-rigid connections at beam column, column base and brace end regions through analyses will provide more realistic representation of the actual behavior of a structure. The proposed model is tested through available analysis program for validation purpose of gusset plate flexibility on brace ends in frames and the effect of the semi-rigidity on column bases with altering beam to column connection flexibility.

Subject Keywords

Semi-Rigid Connection, Column Base Connection, Beam To Column Connection, Brace End (Gusset Plate) Connection , Steel Framed Structures

URI

https://hdl.handle.net/11511/84826
http://eeme.ntua.gr/proceedings/9th/Papers/060_PAP_Ozel.pdf

Conference Name

9th Hellenic National Conference of Steel Structures (5 - 07 Ekim 2017)

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Three dimensional frame element formulation for nonlinear analysis of semi rigid steel structures Özel, Halil Fırat; Sarıtaş, Afşin; Karakaş, Zafer (null; 2016-09-21) In this paper, a force-based three-dimensional frame finite element formulation with spread of inelasticity through the element and localized nonlinear semi-rigid connections is developed. The proposed model utilizes Euler-Bernoulli beam theory assumptions, and adopts fiber discretization of monitored sections along element length and section depth for the spread of inelasticity in order to capture axial force and biaxial bending moment interaction. Defining any type of semi-rigid either linear or nonlinear...
A boundary element formulation for axi-symmetric problems in poro-elasticity Özyazıcıoğlu, Mehmet H; Özkan, M. Yener; Department of Civil Engineering (2006) A formulation is proposed for the boundary element analysis of poro-elastic media with axi-symmetric geometry. The boundary integral equation is reduced to a set of line integral equations in the generating plane for each of the Fourier coefficients, through complex Fourier series expansion of boundary quantities in circumferential direction. The method is implemented into a computer program, where the fundamental solutions are integrated by Gaussian Quadrature along the generator, while Fast Fourier Transf...
Modeling of the nonlinear behavior of steel framed structures with semi rigid connections Sarıtaş, Afşin; Özel, Halil Fırat (null; 2015-07-21) A mixed formulation frame finite element with internal semi-rigid connections is presented for the nonlinear analysis of steel structures. Proposed element provides accurate responses for spread of inelasticity along element length by monitoring the nonlinear responses of several crosssections, where spread of inelasticity over each section is captured with fiber discretization. Each material point on the section considers inelastic coupling between normal stress and shear stress. The formulation of the ele...
Estimation of lining thickness around circular shafts Ozturk, H; Unal, E (2001-06-22) In this paper, the broken zone developing, around a circular mine shafts and lining pressure is estimated by integrating the results of numerical analysis and the "rock-load height" equation derived from empirical analysis. During numerical modelling studies, the computer program FLAC(2D) was utilized. In order to estimate equivalent Mohr failure Envelope from the generalised Hoek Brown failure criterion, a new FISH function was written within FLAC(2D). Parametric studies were carried out by considering mRM...
An Elastic-Plastic Beam Element Eren, Ahmet M; Darendeliler, Haluk; Department of Mechanical Engineering (2006) In this thesis, a two node nonlinear elastic-plastic beam finite element is developed to analyze large deformations. The system of equations are derived from virtual work principle, and the updated Lagrangian formulation is used. Material is assumed to be isotropic and rate insensitive obeying J2-flow rule. Work hardening characteristics of material is considered and all nonlinear terms are included. For the two node iso-parametric beam element a layered model is used to analyze through-the-thickness distri...

Citation Formats

H. F. Özel and A. Sarıtaş, “A 2d Frame Element Taking Into Account Semi-Rigidity At Column Bases, Brace Ends Beam To Column Connections In Steel Structures,” presented at the 9th Hellenic National Conference of Steel Structures (5 - 07 Ekim 2017), Larissa, Yunanistan, 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/84826.