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Seismic Behavior of Deep and Slender...

Sepulveda, Claudio,

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Seismic Behavior of Deep and Slender Steel Columns Through Full-Scale Cyclic and Hybrid Testing /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Seismic Behavior of Deep and Slender Steel Columns Through Full-Scale Cyclic and Hybrid Testing // Claudio Sepulveda.
Author:	Sepulveda, Claudio,
Description:	1 electronic resource (162 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-10, Section: B.
Contained By:	Dissertations Abstracts International85-10B.
Subject:	Materials science. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30988735
ISBN:	9798382225012

Seismic Behavior of Deep and Slender Steel Columns Through Full-Scale Cyclic and Hybrid Testing /
Sepulveda, Claudio,

Seismic Behavior of Deep and Slender Steel Columns Through Full-Scale Cyclic and Hybrid Testing /Claudio Sepulveda. - 1 electronic resource (162 pages)

Source: Dissertations Abstracts International, Volume: 85-10, Section: B.

Steel moment frames composed of wide flange steel members are commonly used in seismic regions, with deep and slender column sections often selected to economically satisfy drift limit requirements. The section slenderness makes the columns more susceptible to local and global buckling and subsequent axial shortening when subjected to combined axial forces and lateral deformations. Numerous tests have been conducted on isolated column members under a wide range of axial loads and loading patterns. Experimental data of subassembly or complete frame configurations providing insight into system level interaction of the column with other members in the frame are very limited. This study presents experimental observations from a full-scale testing program conducted on four cruciform beam-to-column subassemblages subjected to loading patterns based on both symmetric quasi-static cyclic loading and hybrid simulation. The experimental results are compared with previous testing of individual columns and the data is used towards developing column models that can capture axial shortening. A column hinge macro-element is developed to assess the expected axial shortening due to column buckling and effects on the building structure.The hybrid simulations conducted as part of this test program required a novel framework to apply mixed displacement- and force-controlled loading on the experimental substructures. A full nonlinear model of a complete frame was developed for the numerical substructure that interacts with the subassembly applying displacements for lateral loading and the axial load in force control. The framework uses a controller-based transformation to satisfy both force equilibrium and displacement compatibility between the experimental substructure experiencing shortening and the numerical model. The numerical substructure and the overall substructuring strategy of the hybrid simulation is further improved by implementing an online model updating algorithm to update the numerical beam hinge parameters based on the latest measured response during the test. These tests also include one of the most advanced applications of model updating with hybrid simulation on a large and complex structural system.

English

ISBN: 9798382225012Subjects--Topical Terms:

543314
Materials science.
Subjects--Index Terms:

Deep columns

Seismic Behavior of Deep and Slender Steel Columns Through Full-Scale Cyclic and Hybrid Testing /
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100 1 $a Sepulveda, Claudio, $e author. $3 3821528
245 1 0 $a Seismic Behavior of Deep and Slender Steel Columns Through Full-Scale Cyclic and Hybrid Testing / $c Claudio Sepulveda.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2024
300 $a 1 electronic resource (162 pages)
336 $a text $b txt $2 rdacontent
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500 $a Source: Dissertations Abstracts International, Volume: 85-10, Section: B.
500 $a Advisors: Mosqueda, Gilberto; Uang, Chia-Ming Committee members: Shing, Pui-Shum; Chou, Chung-Che; Harris, John L.; de Oliveira, Mauricio.
502 $b Ph.D. $c University of California, San Diego $d 2024.
520 $a Steel moment frames composed of wide flange steel members are commonly used in seismic regions, with deep and slender column sections often selected to economically satisfy drift limit requirements. The section slenderness makes the columns more susceptible to local and global buckling and subsequent axial shortening when subjected to combined axial forces and lateral deformations. Numerous tests have been conducted on isolated column members under a wide range of axial loads and loading patterns. Experimental data of subassembly or complete frame configurations providing insight into system level interaction of the column with other members in the frame are very limited. This study presents experimental observations from a full-scale testing program conducted on four cruciform beam-to-column subassemblages subjected to loading patterns based on both symmetric quasi-static cyclic loading and hybrid simulation. The experimental results are compared with previous testing of individual columns and the data is used towards developing column models that can capture axial shortening. A column hinge macro-element is developed to assess the expected axial shortening due to column buckling and effects on the building structure.The hybrid simulations conducted as part of this test program required a novel framework to apply mixed displacement- and force-controlled loading on the experimental substructures. A full nonlinear model of a complete frame was developed for the numerical substructure that interacts with the subassembly applying displacements for lateral loading and the axial load in force control. The framework uses a controller-based transformation to satisfy both force equilibrium and displacement compatibility between the experimental substructure experiencing shortening and the numerical model. The numerical substructure and the overall substructuring strategy of the hybrid simulation is further improved by implementing an online model updating algorithm to update the numerical beam hinge parameters based on the latest measured response during the test. These tests also include one of the most advanced applications of model updating with hybrid simulation on a large and complex structural system.
546 $a English
590 $a School code: 0033
650 4 $a Materials science. $3 543314
650 4 $a Architectural engineering. $3 3174102
653 $a Deep columns
653 $a Full-scale testing program
653 $a Hybrid simulation
653 $a Online model updating algorithm
653 $a Quasi-static tests
690 $a 0543
690 $a 0794
690 $a 0462
710 2 $a University of California, San Diego. $b Structural Engineering. $e degree granting institution. $3 3821529
720 1 $a Mosqueda, Gilberto $e degree supervisor.
720 1 $a Uang, Chia-Ming $e degree supervisor.
773 0 $t Dissertations Abstracts International $g 85-10B.
790 $a 0033
791 $a Ph.D.
792 $a 2024
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30988735