Civil and Project journal

Investigation of Seismic Performance of Beam Bending Joint to Steel Column with Tapered Beam Flange (TBF)

Volume 3, Issue 1 - Serial Number 23
April 2021
Pages 11-28
Civil and Project journal

Document Type : Research Article

Authors

Seyed Hamid Reza Safaye Tolami 1
Mahmoud Herischian 1
Farzin Moludi 2

1 Department of Civil Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

2 Faculty of Civil Engineering, Semnan University, Semnan, Iran

Abstract
One of the most common parts of steel bending frame structures, which is damaged by seismic load, is beam joints to the column, and joint failure can cause the structure to collapse. One way to improve the seismic performance of steel bending joints is to use bending joints with tapered beam flange (TBF). In this joint, with reducing part of the beam flange width along the seismic anchor slope, the bending joint ductile behavior is increased and the critical stress area is transferred from the beam-to-column joint to the beam flange width reduction location. In this article, the results of laboratory studies conducted by Chen et al. are the basis for the validation of the finite element model, and the most important parameters affecting the seismic performance of this type of joint, including the reinforcement ratio the length of the beam flange width reduction area and the cross section of the main beam have been investigated using the finite element method. The results of the analysis of nonlinear finite element models in ABAQUS software showed that the TBF joint caused the expansion of stress and strain equivalent to the maximum along the area of reduction of the beam flange width, and amount of stress in the area of joint of the beam to the column is reduced and the critical area of the joint is transferred from this place to the place of reduction of the width of the beam flange. Also, by increasing the reinforcement ratio or by increasing the length of the beam flange width reduction area in the TBF joint, the bearing capacity of the joint is increased, and is reduced the maximum amount of strain created at the beam joint to the column.

Keywords

TBF joint
bending joint with tapered beam flange
joining beam to steel column
seismic behavior
steel bending joints
[1] FEMA (1999), "Interim Guidelines Advisory", Federal Emergency Management Agency, FEMA-261, Sacramento,
California.
[2] Afkhami, Hamid Reza (2114), Master Thesis, Hormozgan University.
[3] Shah Hosseini, Farnaz and Emami Korandi, Mohammad, 2014, "Evaluation of nonlinear dynamic behavior of special
steel bending frame structures by considering reduced beam joints (20 and 404 RBS) in progressive failure", 2nd
international congress of structure, architecture and urban development, Tabriz (Persian).
[4] Astaneh-Asl, Abolhassan, 1991, "Seismic Design of Steel Column-Tree Moment-Resisting Frames", Structural Steel
Educational Council, Technical Information & Product Service, University of California, Berkeley.
[5] Mahnaz, Farzaneh, Ghassemieh, Mehdi and Bahaari, Mohammad Reza, 2011, "Rib Reinforcing of Flange Plate
Moment Resisting Connection", Structure and Steel, Tehran, No. 10, pp. 109-120 (Persian).
[6] Fiouz, Alireza and Mosadegh Zaddeh, Afshin, 2010, "Cyclic behavior of column-tree bending joint with non-prismatic
short beam and column with H-shaped cross section", 5th National Congress on Civil Engineering, Ferdowsi University of
Mashhad, Mashhad (Persian).
[1] Chen, Cheng-Chih, Lin, Chun-Chou and Lin, Chieh-Hsiang (2116), "Ductile Moment Connections Used in Steel
Column-Tree Moment-Resisting Frames", Journal of Constructional Steel Research, 62(8), pp. 193- 811.
[8] Plumier, Andre (1991), "New Idea for Safe Structures in Seismic Zones", IABSE Symposium, Brussels, Vol. 61, pp.
431-436.
[9] Sofias, Christos E., Tzourmakliotou, Dimitra C. (2118), "Reduced Beam Section (RBS) Moment Connections-
Analytical Investigation Using Finite Element Method", Civil Engineering Journal, 4(6), pp. 1241-1253.
[11] Kulkarni, Swati Ajay and Vesmawala, Gaurang (2114), "Study of Steel Moment Connection with and without
reduced Beam Section", Case Studies in Structural Engineering, Vol. 1, pp. 26-31.
[11] Chen, Cheng-Chih and Lin, Chun Chou (2113), "Seismic Performance of Steel Beam-to-Column Moment
Connections with Tapered Beam Flanges", Engineering Structures, Vol. 48, pp. 588-611.
  • Receive Date 24 March 2021
  • Revise Date 26 March 2021
  • Accept Date 20 April 2021
  • First Publish Date 20 April 2021
  • Publish Date 21 March 2021

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