Behavior of conventional and enhanced gravity connections subjected to column loss

Cortes, Gustavo; Liu, Judy

doi:10.1016/j.jcsr.2017.02.028

Cited by 11 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparisons with inelastic dynamic finite element analysis results demonstrated that the proposed method is logically accurate and extremely effective. Cortes and Liu (2017) examined the behavior of steel gravity frames with five different types of simple connections, which are mainly designed to transfer the shear caused by gravity loads, under sudden column removal scenario. Under this scenario, very large axial loads are generated in the connections, which are far higher than the shear forces for which the connection has been designed.…”

Section: Introductionmentioning

confidence: 99%

Effect of fully restrained beam-to-column connection on the progressive collapse strength of steel moment frames

Salmasi

Sheidaii

Sahebalzaman

et al. 2020

Advances in Structural Engineering

View full text Add to dashboard Cite

The beam-to-column connection has been identified as a key element for steel frame structures to maintain the structural integrity during progressive collapse phenomenon. In the current study, in order to assess the effects of beam-to-column connection type on the progressive collapse strength of steel moment frames, the progressive collapse behavior of a steel intermediate moment frame structure was evaluated with 10 different types of fully restrained connections. The progressive collapse strength of these buildings against sudden removal of a column was separately studied using nonlinear static alternate path method presented in Unified Facility Criteria progressive collapse guideline. To consider the nonlinear effects in the structural modeling, plastic hinges for beam and column members and connections were defined and modeled according to the ASCE 41 standard. The results of the progressive collapse analyses indicated that if the plastic hinges of connections are separately defined in addition to the plastic hinges of beams and columns, the structure will have lower progressive collapse strength, and the calculated dynamic increase factor will grow. Among the studied types of connections, the free flange connection had the best performance and the highest strength against progressive collapse.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of fully restrained beam-to-column connection on the progressive collapse strength of steel moment frames

Salmasi

Sheidaii

Sahebalzaman

et al. 2020

Advances in Structural Engineering

View full text Add to dashboard Cite

show abstract

“…In the initial phase, compression in the beams was observed, then the tension occurred. In the paper [3] experimental tests of twelve steel two-dimensional double-span symmetrical frames with various beam-to-column connections were performed. Traditional connections were used and also improved connections were proposed.…”

Section: Introductionmentioning

confidence: 99%

Experimental Tests of Steel Unstiffened Double Side Joints with Flush and Extended End Plate

Kozłowski

Kukla

2019

Archives of Civil Engineering

View full text Add to dashboard Cite

Experimental tests of steel unstiffened double side bolted end-plate joints have been presented. The main aim of the conducted tests was to check the behavior of joints in an accidental situation and possibility of creating secondary mechanism, i.e. catenary action in the scenario of column loss. Two types of end plate joints were tested: flush end-plate (FP) and extended end-plate (EP) with different thickness and different number of bolt rows in each. The tests were carried out on an isolated cross beam-column-beam type system until joint failure. During tests the available moment resistance and rotation capacity of bending joints and also values of tension forces in the beam were determined. The joints with extended end-plate have demonstrated higher bending and rotational capacity than flush end-plate. Significant deformation of column flanges, web and end plate were observed. The fracture of bolts was the failure mode of joints. Obtained results of axial force values in beam exceeded standard requirement what confirmed that the joints with unstiffened web column, flush or extended end-plate possess the ability of development the catenary action.

show abstract

“…Beam-column joints play an import role in the robustness of building structures when structures are subjected to progressive collapse scenarios. Currently, many tests have been conducted on both fin plate (FP) [1][2][3][4][5] and welded unreinforced flange with bolted web (WUF-B) [6][7][8][9][10][11][12] connections. However, most of the previous tests focused on the behaviour of bare steel joints.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Steel and Composite Beam-Column Joints Subjected to Quasi-Static and Impact Loads

Chen

Tan

2018

Proceedings 12th International Conference on Advances in Steel-Concrete Composite Structures - ASCCS 2018

View full text Add to dashboard Cite

The behaviour of steel and composite beam-column joints was investigated in this paper. A test programme on typical beam-column joints subjected to quasi-static and impact loads was presented. A comparison of different connections was conducted and composite slab effect was investigated. Based on the test results, a component-based modelling approach was proposed and validated. Basic nonlinear springs of beam-column joint models were developed. Mechanical properties of the nonlinear springs were defined based on either current design codes or models proposed by previous researchers. Good agreement with test results was achieved by the component-based models.

show abstract

Behavior of conventional and enhanced gravity connections subjected to column loss

Cited by 11 publications

References 4 publications

Effect of fully restrained beam-to-column connection on the progressive collapse strength of steel moment frames

Effect of fully restrained beam-to-column connection on the progressive collapse strength of steel moment frames

Experimental Tests of Steel Unstiffened Double Side Joints with Flush and Extended End Plate

Behaviour of Steel and Composite Beam-Column Joints Subjected to Quasi-Static and Impact Loads

Contact Info

Product

Resources

About