Finite-element assisted design of eaves joint of cold-formed steel portal frames having single channel-sections

Pouladi, Pouya; Ronaldson, John; Clifton, G. Charles; Ingham, Jason; Wrzesien, Andrzej M.; Lim, James B.P.

doi:10.1016/j.istruc.2019.05.009

Cited by 14 publications

(6 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In ABAQUS, the bolt groups have been simulated in the FE models in two methods that were used to simulate the real behavior of bolted connection at the column-beam joints. In the first method, the diameter of each bolt was given a physical radius (r) equivalent to half the bolt-shank (Pouladi et al 2019;Amin et l. 2019). Every point of fixing was displaced and rotated as the average of the surrounding nodes (Figure 6.b).…”

Section: Cyclic Behavior Of Cold-formed Steel Framementioning

confidence: 99%

“…The analyzed models must have an extensive finite element mesh. However, the mesh of optimum finite elements must be determined as it will prolong the analysis time (Dubina.2008;Pouladi et al 2019). Besides, the fine mesh is required at the joints in case of contact mechanics is defined in the interacting element, because these regions require a sensitive calculation and the presence of weak finite element networks in these regions may affect the analysis results as well as make the solution difficult; the analysis may be aborted and no results may be obtained.…”

Section: Seismic Finite Element Modelingmentioning

confidence: 99%

“…2014;Ye, Mojtabaei, Hajirasouliha and Pilakoutas. 2019;Pouladi et al 2019). The behavior of the lateral load-resisting shear wall systems was the main focus of most of these studies.…”

Section: Introductionmentioning

confidence: 99%

“…1998). (Pouladi et al 2019), in their experimental study, investigated the critical failure modes of a cold-formed steel portal frame comprised a single channel section for the columns and rafter's eaves connections. The results revealed that the critical mode of failure is a combination of torsion of the eaves joints and the shear failure of screws.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Experimental Study of Earthquake Simulator for 3D Cold-Formed Steel Frame Structure

Alemdar

Al-Gaadi

2022

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

This paper aims to perform the experimental test and numerical FE analysis of the cold-formed steel frame structure to provide new proposals to improve the strength, rotation capacity, and seismic energy dissipation in these structures. A 3D full-scale three-story CFS frame structure is experimentally investigated under four sets of input data for 100% and 50% scales of Northridge and Kocaeli earthquake acceleration records using the shaking table test. In each test, the frame acceleration and displacement are observed. A FE model is employed to assert the validity of the experimental test. The results indicated that the maximum story drift ratio of the frame ranges from 1.14% to 3.70%. It is observed that the average similarity ratio of the maximum displacement results between FE analysis and shaking table test is 92%. It is shown that the translational stiffness for the system decrease as the earthquake acceleration records decrease. It is also shown that using the image processing technique in the shaking table test can offer much more acceptable and economical solutions in determining the displacement parameters.

show abstract

Section: Cyclic Behavior Of Cold-formed Steel Framementioning

confidence: 99%

Section: Seismic Finite Element Modelingmentioning

confidence: 99%

“…2014;Ye, Mojtabaei, Hajirasouliha and Pilakoutas. 2019;Pouladi et al 2019). The behavior of the lateral load-resisting shear wall systems was the main focus of most of these studies.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental Study of Earthquake Simulator for 3D Cold-Formed Steel Frame Structure

Alemdar

Al-Gaadi

2022

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

show abstract

“…The apex connection was fabricated by connecting two CFS back-to-back double sigma rafter sections using a gusset apex plate and bolts. Similarly, Pouladi et al [10] investigated the mechanical behavior of the eaves joint of CFS portal frames by carrying out finite element analyses (FEA). The eaves joint consisted of channel sections, screws and bolts.…”

Section: Introductionmentioning

confidence: 99%

Bearing Capacity and Failure Mode of a Light-Steel Tubular K-joint Connected by a Novel U-shape Connector

et al. 2021

View full text Add to dashboard Cite

This study aims to investigate the ultimate bearing capacity of a novel tubular K-joint used for light-steel structures consisting of thin-walled square hollow section members, a U-shape connector and self-drilling screws, and the effect of three patterns of stamping indentation fabricated on the U-shape connector on the ultimate bearing capacity of the proposed K-joint. Firstly, a total of 12 K-joint specimens were tested to failure under monotonic brace axial compressive loading. Secondly, failure mode and the ultimate bearing capacity of each specimen were investigated and analyzed. Finally, finite element analyses were carried out to study the effect of three key parameters, including chord axial stress ratio, half width-to-thickness ratio of the chord and brace-to-chord wall thickness ratio, on the ultimate bearing capacity of the proposed K-joints using the recommended U-shape connector. It was found that failure mode of the proposed K-joint is governed by both the deformation of the U-shape connector and the chord local plastification. Besides, the K-joint specimen using a U-shape connector with the strip stamping grooves in the horizontal direction generally has a higher bearing capacity and a much smaller connector deformation. Similar to the welded tubular joints, chord axial stresses may also significantly reduce the ultimate bearing capacity of the proposed K-joint.

show abstract

Study on Optimization Design of Portal Frame Structure

2022

Proceedings of the 7th International Conference on Architecture, Materials and Construction

View full text Add to dashboard Cite

Finite-element assisted design of eaves joint of cold-formed steel portal frames having single channel-sections

Cited by 14 publications

References 28 publications

Experimental Study of Earthquake Simulator for 3D Cold-Formed Steel Frame Structure

Experimental Study of Earthquake Simulator for 3D Cold-Formed Steel Frame Structure

Bearing Capacity and Failure Mode of a Light-Steel Tubular K-joint Connected by a Novel U-shape Connector

Study on Optimization Design of Portal Frame Structure

Contact Info

Product

Resources

About