Finite Element Modeling of Seismic Performance of Low Strength Concrete Exterior Beam-Column Joints

2013 ◽  
pp. 221-242
Author(s):  
Danish Ahmed ◽  
Mohammed H. Baluch ◽  
Muhammad K. Rahman ◽  
Alper Ilki
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Seismic Performance ◽  
Strength Concrete ◽  
Element Modeling ◽  
Low Strength ◽  
Low Strength Concrete

Finite Element Modeling of CFRP-Strengthened Low-Strength Concrete Short Columns

2018 ◽  
pp. 729-734
Author(s):  
Khaled A. Alawi Al-Sodani ◽  
Muhammed K. Rahman ◽  
Mohammed A. Al-Osta ◽  
Ali A. H. Al-Gadhib
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Strength Concrete ◽  
Element Modeling ◽  
Short Columns ◽  
Low Strength ◽  
Low Strength Concrete

EFFECT OF STRENGTH OF FILLED-CONCRETE ON STRUCTURAL PERFORMANCE OF CONTINUOUS BEAM-TYPE SQUARE CFST BEAM-TO-COLUMN CONNECTION

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Koki Doi ◽  
Takashi Fujinaga
Keyword(s):  
Seismic Performance ◽  
Compressive Strain ◽  
Compressive Load ◽  
High Energy ◽  
Steel Tube ◽  
Continuous Beam ◽  
Strength Concrete ◽  
Beam Type ◽  
Low Strength ◽  
Low Strength Concrete

Continuous beam-type concrete-filled steel tube (CFST) column connections are simple to fabricate and exhibit effective seismic performance. Fujinaga and Clifton have previously studied the performance of continuous beam-type square CFST beam-to-column connections using concrete of relatively high strength (85 MPa) and demonstrated their effective performance and high energy-absorbing capacity. However, in their study, it was found that the local deformation of the steel beam under bending-induced beam tension had a large effect on the steel tube flange near the connection. Further, it was observed that filled concrete may not contribute substantially to the transmission of compressive load at the connection panel if low-strength concrete is used. In this study, the square CFST beam-to-column connection was investigated, and the connection performance and load transfer mechanisms were examined when the strength of the concrete was relatively low (40 MPa). The specimens demonstrated effective seismic performance, exhibiting sufficient strength and stable hysteretic behavior with high energy absorption even when low-strength concrete was used. Irrespective of the strength of the concrete used, the strain developed in the steel tube flanges was low on the compression side, and the filled concrete contributed to the transmission of the compressive load at the connection panel. The compressive strain in the steel tube was slightly higher when the strength of the concrete was low.

High-resolution finite element modeling for bond in high-strength concrete beam

2018 ◽  
Vol 173 ◽  
pp. 918-932 ◽  
Author(s):  
Seungwook Seok ◽  
Ghadir Haikal ◽  
Julio A. Ramirez ◽  
Laura N. Lowes
Keyword(s):  
Finite Element ◽  
High Resolution ◽  
Finite Element Modeling ◽  
High Strength Concrete ◽  
Concrete Beam ◽  
High Strength ◽  
Strength Concrete ◽  
Element Modeling

scholarly journals Finite element analysis and parametric study of EWECS composite columns with double H-shaped steel

2019 ◽  
Vol 258 ◽  
pp. 05018
Author(s):  
Fauzan ◽  
Ruddy Kurniawan ◽  
Zev Al Jauhari
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Seismic Performance ◽  
Parametric Study ◽  
Fiber Reinforced Concrete ◽  
Experimental Result ◽  
Composite Columns ◽  
Friction Element ◽  
Element Modeling ◽  
Finite Element Software

The behavior of composite column that consists of an exterior wood panel with concrete encased steel (CES) core, hereafter referred to as Engineering Wood Encased Concrete-Steel (EWECS) composite columns, is investigated. Nonlinear analysis is done by using finite element software, ANSYS APDL, to study the seismic performance of the columns. Verification of the finite element modeling is done by comparing and corresponding experimental result that reported by one of the authors, then it is used as a reference for parametric study. The parameters in the parametric study are the use of fiber reinforced concrete (FRC), the use of Indonesian wood and the use of friction element. The results are presented in the form of hysteresis characteristics, failure mode, and principal stress distribution. It is demonstrated that the seismic performance of the EWECS composite columns can be accurately predicted by proposing finite element modeling. Obtained results from the parametric study show that various FRC, different wood, and the contact element influences the hysteresis loops and behavior of the columns. The flexural capacity of the columns is improved about 7-17% by adding steel fiber. In addition, the typical Indonesian wood (Matoa) enhances the flexural strength about 3.3%. Moreover, the use of a friction element affects the seismic behavior significantly.

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