Improved Seismic Performance of Gusset Plate Connections

Lehman, Dawn E.; Roeder, Charles W.; Herman, David; Johnson, Shawn; Kotulka, Brandon

doi:10.1061/(asce)0733-9445(2008)134:6(890)

Cited by 180 publications

(147 citation statements)

References 3 publications

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“…Fatimah De'nan, Nurfarhah Naaim, Lai Chun Leong / Galeri Warisan Kejuruteraan 1(1) (2017) [11][12][13][14][15][16][17][18][19][20] connection's geometric variables (i.e., plate/angle thickness, bolt diameter, bolt pitch, bolt gauge, etc) [13].…”

Section: Problem Statementmentioning

confidence: 99%

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Behaviour of Flush End-Plate Connection for Perforated Section

De’nan¹,

Naaim²,

Leong³

2017

Eng. herit. j.

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A B S T R A C T IntroductionConnection is one of the most important elements in structural components for steelwork. This is because the internal forces and moments at the connection are transferred by the connection from the connected members to other supporting member. The mechanical properties of the connections will have effects on the strength, stiffness and stability of the whole structure. Hence, most of the recent research works were focussed on the behaviour of the connection. For multi-storey buildings, the type of connections between the main structural elements which are usually classified as beam-to-column connections, beam-tobeam connections, column splices, column bases and bracing connections. However, the most common type of connections used in the research is the beam-to-column connection.

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Section: Problem Statementmentioning

confidence: 99%

“…Beam to column connections are identified as one of the critical components of steel frames which experience yielding, buckling and other inelastic or brittle phenomena during earthquakes [14]. In the past years, bolted connections, especially end-plated connections are very popular.…”

Section: Problem Statementmentioning

confidence: 99%

Behaviour of Flush End-Plate Connection for Perforated Section

De’nan¹,

Naaim²,

Leong³

2017

Eng. herit. j.

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“…They proposed an elliptical clearance requirement instead of the 2t linear clearance distance proposed earlier to improve both the constructability and performance of the connections [12].…”

Section: Previous Researchmentioning

confidence: 99%

The effect of gusset plate in moment-rotation behavior of double-web angle connection, in braced frames

Mofid

Wayghan

2017

Scientia Iranica

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Abstract. Double-web angle connection is one of the most rudimentary connections in simple structural systems such as braced frame system. It is essentially presumed in conventional designs that double-web angle connection behaves as a hinge connection. However, in braced frames, due to existence of braces in some bays, in speci ed locations where gusset plates of brace are placed with beam-to-column connection in one joint, this assumption may not be accurate. This is due to the restraining of the beam from rotation by gusset plates that are placed either on the top and bottom of the beam or only on one side. In such cases, the simple beam-to-column connection may be transformed into a semi-hinge or xed connection. In this paper, double-web angle connection is investigated in the mentioned locations by using the FEM method along with calculating moment rotation behavior of connection and, subsequently, type and rigidity of the connection. Furthermore, an analytical model is proposed to predict the characteristics of the doubleweb angle connection in the view of the relevant case.

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“…If the model includes only the brace, the stiffness associated with the frame is not included. Testing of braced frame specimens reported in Lehman et al (2008) and Sen et al (2016) indicate that the ultimate deformation capacity, d, most closely relates to the local slenderness ratio for the brace, λ/λ hd , where λ is the critical b/t or h/d ratio for the cross section and λ hd is the limiting value for highly ductile behavior per ANSI/AISC 341. The COV from the data to the expression is 0.065.…”

Section: -12 5: Steel Concentrically Braced Frames Gcr 17-917-45mentioning

confidence: 99%

Recommended modeling parameters and acceptance criteria for nonlinear analysis in support of seismic evaluation, retrofit, and design

2017

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PrefaceIn September 2014, the Applied Technology Council (ATC) commenced a task order project under National Institute of Standards and Technology (NIST) Contract SB1341-13-CQ-0009 to conduct comprehensive review of the generalized component models published in the current ASCE/SEI standard and relevant research, and develop recommendations for improvement . The need for defining parameters for nonlinear force-deformation models for components, elements, or assemblies is identified as a high-priority research and development topic in NIST GCR 14-917-27 report, Nonlinear Analysis Study and Development Program for Performance-Based Seismic Engineering, (NIST, 2013b) which outlines a research and development program for addressing the gap between state-of-the-art academic research and state-of-practice engineering applications for nonlinear structural analysis, analytical structural modeling, and computer simulation in support of performance-based seismic engineering. Buildings (ASCE, 2014), is widely used by designers for evaluating and upgrading existing buildings. The component models in the current standard were developed for use in existing building analysis, but they have also become widely employed in new building analysis. The purpose of this report is to recommend broad improvements to seismic nonlinear modeling and acceptance criteria requirements for different structural systems. The current standard, ASCE/SEI 41-13, Seismic Evaluation and Retrofit of Existing List of Tables xxviiThis publication is available free of charge from: https://doi.org/10.6028/NIST.GCR.17-917-45 List of Tables Executive SummaryThis report presents recommended hysteretic relationships for use in nonlinear seismic analysis in support of performance-based seismic design and evaluation projects. The primary intended audience for this report are committee members engaged in the development of building code requirements for the use of nonlinear analysis in design, though individual engineers engaged in performance-based engineering projects may find the information presented herein useful.Nonlinear static and dynamic analysis are commonly used by engineers to assess the probable performance of existing buildings and to design major new buildings. The most comprehensive guidelines presently available for performing nonlinear seismic analysis are contained in ASCE/SEI 41-13, Seismic Evaluation and Retrofit of Existing Buildings (ASCE, 2014). This guidance includes recommended backbone shapes and control points that describe the envelope of hysteretic response of various structural elements when subjected to ramped, fully-reversed, cyclic loading protocols. Most of these backbone recommendations are based on data available in the mid-1990s. Substantial additional research has been conducted since that time, enabling the development of updated backbones and control points for steel braced frame and moment frame, reinforced concrete shear wall and moment frame, and masonry and wood shear wall structur...

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Improved Seismic Performance of Gusset Plate Connections

Cited by 180 publications

References 3 publications

Behaviour of Flush End-Plate Connection for Perforated Section

Behaviour of Flush End-Plate Connection for Perforated Section

The effect of gusset plate in moment-rotation behavior of double-web angle connection, in braced frames

Recommended modeling parameters and acceptance criteria for nonlinear analysis in support of seismic evaluation, retrofit, and design

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