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PDF Seismic Behavior of HSS Bracing Members according

Three-Dimensional Finite Element Simulation of the

A500,Gr.C.,hollow structural sections (HSS).Since Imanpour et al.(2013) focused on the seismic behavior of the 24 m MTCBF,this frame was selected for detailed three-dimensional finite element study.This frame had W24x131 columns,W10x39 struts,and HSS4x4x5/16 braces.Since an earlier study by Stoakes and FahnestockSquare and Rectangular HSS-to-HSS Moment Connections Fadden,F.and McCormick,J.(2014a).Finite Element Model of the Cyclic Bending Behavior of Hollow Structural Sections.Journal of Constructional Steel Research,94,64-75.Fadden,F.and McCormick,J.(2014b).HSS-to-HSS Seismic Moment Connection Performance and Design.Journal of Constructional Steel Research,101,373-384.Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextSeismic Behavior of HSS Bracing Members according toThis study examined the effect of the widththickness ratio ( wt ratio) on the seismic behavior of cold-formed hollow structural section (HSS) bracing members.For this purpose,an experimental st

Some results are removed in response to a notice of local law requirement.For more information,please see here.12345NextSeismic Behavior of HSS Bracing Members according to

This study examined the effect of the widththickness ratio ( wt ratio) on the seismic behavior of cold-formed hollow structural section (HSS) bracing members.For this purpose,an experimental stSome results are removed in response to a notice of local law requirement.For more information,please see here.Seismic behavior of special truss moment frame with double Jan 15,2017 PDF Seismic Behavior of HSS Bracing Members according#0183;1.Introduction.Research carried out in the 1990s on the seismic behavior of steel special truss moment frames (STMFs) using double-angle sections ,,,led to the formulation of design code provisions incorporated into the American Institute of Steel Construction (AISC) Seismic Provisions for Structural Steel buildings in 1997 (Eq.) .One of the major advantages of using the STMF system is

Seismic behavior of special truss moment frame with double

Jan 15,2017 PDF Seismic Behavior of HSS Bracing Members according#0183;1.Introduction.Research carried out in the 1990s on the seismic behavior of steel special truss moment frames (STMFs) using double-angle sections ,,,led to the formulation of design code provisions incorporated into the American Institute of Steel Construction (AISC) Seismic Provisions for Structural Steel buildings in 1997 (Eq.) .One of the major advantages of using the STMF system is Seismic assessment of ductile concentrically braced frames Jul 15,2019 PDF Seismic Behavior of HSS Bracing Members according#0183;1.Introduction.Early experimental tests on square hollow structural section (HSS) bracing members ,,,have shown that braces in concentrically braced frames (CBFs) designed meeting the member requirements adopted in the 1980 AISC Plastic Design Specification have suffered from premature fracture during cyclic post-buckling deformations.In the late 1980s,attempts were made toSeismic assessment of ductile concentrically braced frames Jul 15,2019 PDF Seismic Behavior of HSS Bracing Members according#0183;1.Introduction.Early experimental tests on square hollow structural section (HSS) bracing members ,,,have shown that braces in concentrically braced frames (CBFs) designed meeting the member requirements adopted in the 1980 AISC Plastic Design Specification have suffered from premature fracture during cyclic post-buckling deformations.In the late 1980s,attempts were made to

Seismic Design of Steel Special Concentrically Braced

AISC Seismic Design Manual (AISC 2012) Ductile Design of Steel Structures (Bruneau et al.2011) SEAOC Structural/Seismic Design Manual (SEAOC 2013).This Guide is intended to aid the reader in identifying significant aspects of seismic design and behavior and to identify resources that are useful for design and forSeismic Behavior of X-Shaped Drawer Bracing System (DBS Jan 13,2016 PDF Seismic Behavior of HSS Bracing Members according#0183;In this work,seismic performance of conventional X-braced frames is enhanced by using Drawer Bracing Systems (DBS).DBS is an innovative structure,which increases ductility and energy absorption capacity of the X-braces through elimination of the harmful effects of local and global buckling and by converting the induced axial forces inside diagonal arms to flexural moments.Seismic Behavior of Steel Off-Diagonal Bracing System The introduction of an eccentricity in this system results in a geometric nonlinearity behavior.The midpoint of the diagonal member is connected to the corner joint using a brace member with a relatively low stiffness,thus forming a three-member bracing system in each braced panel.An iterative method of analysis has been developed to study the nonlinear load-deflection behavior of ODBS.

Seismic Behavior of Steel HSS X-Bracing of the

Seismic Behavior of Steel HSS X-Bracing of the Conventional Construction Category on the seismic performance of concentrically braced steel frames of the Conventional Construction category designed according to NBCC 2010 and CSA-S16 seismic provisions. The results indicate that the behaviour of the bracing members is influenced by the Seismic Behavior of Steel Buildings with Hybrid Braced Jun 06,2013 PDF Seismic Behavior of HSS Bracing Members according#0183;This paper presents the seismic performance of buildings with a hybrid bracing system in which buckling-restrained braces (BRBs) are used at the lower stories with the higher level of ductility demands,and conventional buckling-type braces consisting of steel hollow structural sections (HSS) are used in the upper stories with relatively smaller ductility demands to minimize the probability of Seismic Behavior of HSS Bracing Members according toThis study examined the effect of the widththickness ratio (w t ratio) on the seismic behavior of cold-formed hollow structural section (HSS) bracing members.For this purpose,an experimental study was carried out.Quasi-static reversed cyclic loading was applied to the specimens.

STANDARDIZED CAST STEEL CONNECTORS FOR

brace member.Figures 3 and 4 below compare three seismic-resistant brace connections designed according to the current Canadian standard (CSA,2001).The figures illustrate the significant reduction in design,detailing,and fabrication complexity that the use of the standardized connectors developed by the authors provides.New HSS Specification ASTM A1085 - SEAoOSeismic design has evolved In North America,HSS are commonly used as bracing members in braced frames in seismic zones In Europe Asia,HSS commonly used as columns and bracing in seismic zones Researchers are looking for more innovative ways to utilize the advantages of HSSIntermediate HSS bracing members during seismic DAniello M,La Manna A G,Portioli F,Landolfo R.The influence of out-of-straightness imperfection in Physical-Theory models of bracing members on seismic performance assessment of concentric braced structures.Structural Design of Tall and Special Buildings,2015,24(3) 176197 29

HYSTERETIC BEHAVIOR OF HSS BRACING MEMBERS - CORE

In this study hysteretic behaviors of Hollow Structural Section (HSS) bracing members having different width-thickness ratios (w/t ratio) are investigated.For this purpose,an experimental study was carried out using 7 specimens under quasi static symmetric reversed cyclic loading in tension and compression.FINITE ELEMENT STUDY ON LOCAL BUCKLING ANDSeismic Provision 2005; Eurocode 3) provide limits on width-thickness ratios of compression elements.For round HSS (pipe section) brace members the following limits are given in AISC Seismic Provisions and Eurocode 3 0.044 y D tF E (AISC 2005 ) (1.3) 0.059 y D tF E (EUROCODE 3 for Class 1 sections) (1.4) where .D diameter of the FINITE ELEMENT STUDY ON LOCAL BUCKLING ANDSeismic Provision 2005; Eurocode 3) provide limits on width-thickness ratios of compression elements.For round HSS (pipe section) brace members the following limits are given in AISC Seismic Provisions and Eurocode 3 0.044 y D tF E (AISC 2005 ) (1.3) 0.059 y D tF E (EUROCODE 3 for Class 1 sections) (1.4) where .D diameter of the

Experimental and numerical study on the seismic behavior

A 30-story HSS-FTS-RSL building was designed as the prototype structure according to the requirements in ANSI/AISC 360-16 provisions ,ANSI/AISC 341-16 ,Chinese Standard GB 50011-2010 ,and JGJ 99-2015 .The site of this prototype building was a highly seismic area in Xian,China,where the peak ground acceleration (PGA) of the design basis Evaluation of brace fracture models in seismic analysis of This study examined the effect of the width-thickness ratio w /t ratio on the seismic behavior of cold-formed hollow structural section HSS bracing members.For this purpose,an experimental study Design of Tension-Only Concentrically Braced Steel Frames The maximum strain rates that can be generated by seismic excitation is conservatively estimated as 101 /s.According to equation (1) and as shown in Figure 5,the maximum value for the dynamic amplification factor of a bracing member would be equal to 1.15.This conservative estimate could be also used for code design purposes.7.

Design of Tension-Only Concentrically Braced Steel Frames

The maximum strain rates that can be generated by seismic excitation is conservatively estimated as 101 /s.According to equation (1) and as shown in Figure 5,the maximum value for the dynamic amplification factor of a bracing member would be equal to 1.15.This conservative estimate could be also used for code design purposes.7.Cyclic behavior and finite element modeling of wide flange Feb 01,2017 PDF Seismic Behavior of HSS Bracing Members according#0183;Wide-flange (WF) bracing members are being used increasingly in concentrically braced frames (CBFs).The limited number of tests WF members performed to date highlights the need for a detailed finite element model with a reliable fracture rule to understand the hysteresis behavior and to predict the fracture of WF braces subjected to cyclic loading.Cyclic behavior and finite element modeling of wide flange Feb 01,2017 PDF Seismic Behavior of HSS Bracing Members according#0183;Wide-flange (WF) bracing members are being used increasingly in concentrically braced frames (CBFs).The limited number of tests WF members performed to date highlights the need for a detailed finite element model with a reliable fracture rule to understand the hysteresis behavior and to predict the fracture of WF braces subjected to cyclic loading.

Conceptual study of X-braced frames with different steel

Sep 13,2012 PDF Seismic Behavior of HSS Bracing Members according#0183;Gugerli H and Goel SC (1982),Inelastic Cyclic Behavior of Steel Bracing Members,Univ.of Michigan,Dept.of Civil Engineering,Ann Arbor,Mich.Google Scholar Han SW,Kim WT and Foutch DA (2007),Seismic Behavior of HSS Bracing Members According to Widththickness Ratio under Symmetric Cyclic Loading, ASCE Journal of Structural Conceptual study of X-braced frames with different steel Sep 13,2012 PDF Seismic Behavior of HSS Bracing Members according#0183;Gugerli H and Goel SC (1982),Inelastic Cyclic Behavior of Steel Bracing Members,Univ.of Michigan,Dept.of Civil Engineering,Ann Arbor,Mich.Google Scholar Han SW,Kim WT and Foutch DA (2007),Seismic Behavior of HSS Bracing Members According to Widththickness Ratio under Symmetric Cyclic Loading, ASCE Journal of Structural Concentric tubular steel braces subjected to seismic Jan 01,2015 PDF Seismic Behavior of HSS Bracing Members according#0183;S.W.Han,W.T.Kim,D.A.FoutchSeismic behavior of HSS bracing members according to widththickness ratio under symmetric cyclic loading J Struct Eng ASCE,133 (2)

Computationally Efficient and Accurate Simulation of

Seismic behavior of HSS bracing members according to width-thickness ratio under symmetric cyclic loading.Journal of Structural Engineering,133,264273.ArticleComputationally Efficient and Accurate Simulation of Seismic behavior of HSS bracing members according to width-thickness ratio under symmetric cyclic loading.Journal of Structural Engineering,133,264273.ArticleCited by 4Publish Year 2018Author Madhar Haddad(PDF) Seismic Behavior of HSS Columns Under Lateral LoadingTo characterize the behavior of HSS under pure bending and determine limiting values for their use up to large rotation levels,11 different HSS beam members ranging in size from HSS 203.2 x 101.6

Cited by 31Publish Year 2007Author Sang-Wan Han,Sang-Wan Han,Sang-Wan Han,Wook Tae Kim,Wook Tae Kim,Wook Tae Kim,Douglas A.FoutcIntermediate HSS bracing members during seismic

Apr 03,2017 PDF Seismic Behavior of HSS Bracing Members according#0183;Concentric hollow structural section (HSS) bracing members are used frequently in steel framed structural systems to resist seismic excitations.Finite element modeling of the HSS braces that utilizes the true stressstrain curves produces hysteresis responses that are reasonable matches to the experimental response.COMPANION TO THE AISC STEEL CONSTRUCTIONPREFACE The primary objective of this Companion is to provide guidance and additional resources of the use of the 2016 AISC Specification for Structural Steel Buildings (ANSI/AISC 360-16) and the 15th Edition AISC Steel Construction Manual.Analytical and Experimental Studies of the Seismic Jul 24,2017 PDF Seismic Behavior of HSS Bracing Members according#0183;In this work,a special type of bracing systems,called the Drawer Bracing System (DBS),is proposed for improving the seismic performance of concentrically braced frames.DBS is a passive energy dissipating device belonging to the class of metallic yielding hysteresis dampers and is used to control and enhance the structures seismic performance.

(PDF) Seismic Behavior of HSS Bracing Members according

Seismic Behavior of HSS Bracing Members according to WidthThickness Ratio under Symmetric Cyclic Loading Article (PDF Available) in Journal of Structural Engineering 133(2) February 2007 (PDF) Influence of connection design on the inelastic The design of brace connections for concentrically braced steel frames detailed for ductile inelastic seismic response is examined.The study focuses on bracing members made of square hollow MODELING ELASTIC AND INELASTIC,CRITICAL- ANDAn efficient beam element,the modified elastofiber (MEF) element,has been developed to capture the overall features of the elastic and inelastic response of slender columns and braces under axial cyclic loading without unduly heavy discretization.It consists of three fiber segments,two at the member ends and one at mid-span,with two elastic segments sandwiched in between.

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