Seismic Resistance Of Concrete Filled Square Steel Hollow Structuralsection Beam Columns

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Seismic Resistance Of Concrete Filled Square Steel Hollow Structuralsection Beam Columns

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Author : Made S. Hardika
language : en
Publisher:
Release Date : 2002

Seismic Resistance Of Concrete Filled Square Steel Hollow Structuralsection Beam Columns written by Made S. Hardika and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

This thesis describes a research program designed to investigate the seismic performance of square concrete-filled tubular (CFT) columns subjected to a combination of axial load and biaxial bending moment. The square CFT columns included normal strength and high-strength concrete-filled square steel hollow structural section columns with two ratios of tube wall thickness to tube dimension. An extensive experimental program included testing twenty-four, concrete filled, square steel hollow structural section column specimens under constant axial compressive load and cyclic horizontal load with horizontal displacement control. This experimental investigation included strength capacity, ductility and flexural stiffness of CFT beam-columns for 203 x 203 x 9.5 HSS (Class 1, compact sections) and 203 x 203 x 4.8 (Class 4, slender sections) hollow structural section (HSS) filled with either normal strength or high strength concrete. Class 1 (compact) and Class 4 (slender) HSS CFT columns subjected to constant axial load and cyclic shear displacements exhibited excellent hysteresis behavior using either normal strength concrete or high strength concrete. No premature failure, local buckling before yielding, was observed for either Class 1 or Class 4 HSS CFT columns. The drift ratios exceeded 7%. The moment capacities of HSS CFT columns loaded with the plane of bending across the diagonal were only slightly less than those loaded with the plane of bending parallel to the square side. This reduces the need for elaborate procedures to calculate the biaxial moment capacities at orientations between 0 and 45°. The strength capacity of square HSS CFT columns subjected to constant axial compressive load and biaxial cyclic bending moment can be conservatively calculated by column section analysis using fully plastic behavior for both concrete and steel. Strength modification factors alpha1 and alpha 2 accommodate confinement and seismic loading, fast concrete strain rates, effects on the CFT column sections and softening of the columns caused by large axial load. Flexural stiffness of square HSS CFT columns can be calculated using the ACI 318-99 flexural stiffness formula with modification to the coefficient of the flexural stiffness contributed by the concrete.

Fire Resistance Of Steel Hollow Structural Section Columns Filled With Bar Reinforced Concrete

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Author : Tiam Tjoan Lie
language : en
Publisher:
Release Date : 1995

Fire Resistance Of Steel Hollow Structural Section Columns Filled With Bar Reinforced Concrete written by Tiam Tjoan Lie and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.

Aci Structural Journal

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Author :
language : en
Publisher:
Release Date : 2004

Aci Structural Journal written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Concrete categories.

Ductility Of Seismic Resistant Steel Structures

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Author : Victor Gioncu
language : en
Publisher: CRC Press
Release Date : 2003-09-02

Ductility Of Seismic Resistant Steel Structures written by Victor Gioncu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-09-02 with Technology & Engineering categories.

This book is a state-of-the-art report on the ductility of steel structures, containing a comprehensive review of the technical literature available, and presenting the results of the authors' own extensive research activities in this area. Analytical and numerical methods are described, and a wealth of practical information is provided. Ductility of Seismic-Resistant Steel Structures will be of great use to advanced students, researchers, designers and professionals in the field of civil, structural and earthquake engineering.

Design Guide For Concrete Filled Double Skin Steel Tubular Structures

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Author : Lin-Hai Han
language : en
Publisher: CRC Press
Release Date : 2018-10-12

Design Guide For Concrete Filled Double Skin Steel Tubular Structures written by Lin-Hai Han and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-12 with Technology & Engineering categories.

This is the first design guide on concrete filled double skin steel tubular (CFDST) structures. It addresses in particular CFDST structures with plain concrete sandwiched between circular hollow sections, and provides the relevant calculation methods and construction provisions for CFDST structures. These inherit the advantages of conventional concrete-filled steel tubular (CFST) structures, including high strength, good ductility and durability, high fire resistance and favourable constructability. Moreover, because of their unique sectional configuration, CFDST structures have been proved to possess lighter weight, higher bending stiffness and better cyclic performance than conventional CFST. Consequently CFDST can offer reduced concrete consumption and construction costs. This design guide is for engineers designing electrical grid infrastructures, wind power towers, bridge piers and other structures requiring light self-weight, high bending stiffness and high bearing capacity.

Behaviour Of Steel Structures In Seismic Areas

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Author : Federico Mazzolani
language : en
Publisher: CRC Press
Release Date : 2012-01-31

Behaviour Of Steel Structures In Seismic Areas written by Federico Mazzolani and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-31 with Technology & Engineering categories.

Behaviour of Steel Structures in Seismic Areas is a comprehensive overview of recent developments in the field of seismic resistant steel structures. It comprises a collection of papers presented at the seventh International Specialty Conference STESSA 2012 (Santiago, Chile, 9-11 January 2012), and includes the state-of-the-art in both theore

1st Fib Congress In Osaka Japan Vol1

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Author : FIB – International Federation for Structural Concrete
language : en
Publisher: FIB - Féd. Int. du Béton
Release Date : 2002-01-01

1st Fib Congress In Osaka Japan Vol1 written by FIB – International Federation for Structural Concrete and has been published by FIB - Féd. Int. du Béton this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-01-01 with Technology & Engineering categories.

Tubular Structures Xiv

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Author : Leroy Gardner
language : en
Publisher: CRC Press
Release Date : 2012-08-24

Tubular Structures Xiv written by Leroy Gardner and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-24 with Technology & Engineering categories.

Tubular Structures XIV contains the latest scientific and engineering developments in the field of tubular steel structures, as presented at the 14th International Symposium on Tubular Structures (ISTS14, Imperial College London, UK, 12-14 September 2012). The International Symposium on Tubular Structures (ISTS) has a long-standing reputation for b

Seismic Performance Of Composite Beam Columns

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Author : Shannon D. Paboojian
language : en
Publisher:
Release Date : 1993

Seismic Performance Of Composite Beam Columns written by Shannon D. Paboojian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Columns categories.

Abstract: "An experimental study was undertaken to investigate the cyclic strength and ductility of composite columns subjected to simulatedseismic loading conditions. Eight two-thirds scale specimens were tested, each consisting of a structural steel shape encased in reinforcedconcrete. Parameters studied in the test program included: the degree of concrete confinement required to achieve adequate ductility; the effectiveness of shear studs for developing flexural stiffness and capacity under combined loading; the distribution of transverse shear resistance among the elements of the composite column; and concrete compressive strength. The results of the test program indicate that composite columns possess exceptional ductility and strength under cyclic loading if the buckling of longitudinal reinforcement is inhibited. Furthermore, the steel shape provides the primary resistance to transverse shear during overloading, and shear studs are not effective in enhancing the resistance against lateral loading. The elastic secant stiffness of the composite section corresponding to initial yielding of the longitudinal reinforcement was found to be well approximated by using one-half the gross moment of inertia (0.5I[subscript g]) in conjunction with Young's modulus for concrete. A prediction method based on superimposing the individual strengths of the reinforced concrete and structural steel shape was found to provide good agreement with test results. Current AISC LRFD provisions were determined to grossly underestimate the flexural capacity of the test specimens, which were axially loaded to 20% of their nominal pure axial load capacity [sic]."

Structural Behaviour Of High Strength Rectangular Concrete Filled Steel Hollow Section Columns

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Author : Dalin Liu
language : en
Publisher:
Release Date : 2006

Structural Behaviour Of High Strength Rectangular Concrete Filled Steel Hollow Section Columns written by Dalin Liu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Building, Iron and steel categories.