Stiffness Reduction of Steel W-Shapes: Comparison Between the Modified Tangent Modulus and a New Inelastic Material Model

Author

• Teresa Villalon-Camacho

Author Type

Graduate Student

Date of Award

2019

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Thesis/Dissertation Advisor [Chair]

Rosson, Barry

Abstract

This research focused on demonstrating the effectiveness of a new inelastic material model, τBTR, and was compared with an existing modified tangent modulus model, τTM, at matching the limit load response of detailed finite element models of steel frames. The influence of stiffness reduction was studied on seven W8x31 columns and eleven benchmark frames. The column study considered minor axis bending with L/r ratios of 40, 60, 80, 100, 120, 180, and 200. Limit load analyses were conducted on steel frames with major-axis and minor-axis bending. The extent of yielding and lateral displacements were evaluated for all benchmark frames at the collapse condition. Discussion is given regarding the two material models and their ability to match the limit load responses of the finite element models.

Extent

182 p.

Comments

Includes bibliography.|Thesis (M.S.)--Florida Atlantic University, 2019.|FAU Electronic Theses and Dissertations Collection|Includes bibliography.

Recommended Citation

Villalon-Camacho, Teresa, "Stiffness Reduction of Steel W-Shapes: Comparison Between the Modified Tangent Modulus and a New Inelastic Material Model" (2019). Electronic Theses and Dissertations 2010 - 2019. 2266.
https://digitalcommons.fau.edu/etd_general_6/2266

Identifier

FA00013276

Format

pdf