東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Performance of Eccentrically Loaded ...

Abdelrahman, Khaled.

Linked to FindBook

Google Book

Amazon

博客來

Performance of Eccentrically Loaded Reinforced Concrete Columns Confined with Shape Memory Alloy Wires.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Performance of Eccentrically Loaded Reinforced Concrete Columns Confined with Shape Memory Alloy Wires./
Author:	Abdelrahman, Khaled.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	474 p.
Notes:	Source: Dissertations Abstracts International, Volume: 79-11, Section: B.
Contained By:	Dissertations Abstracts International79-11B.
Subject:	Architectural engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10835030
ISBN:	9780355956122

Performance of Eccentrically Loaded Reinforced Concrete Columns Confined with Shape Memory Alloy Wires.
Abdelrahman, Khaled.

Performance of Eccentrically Loaded Reinforced Concrete Columns Confined with Shape Memory Alloy Wires. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 474 p.

Source: Dissertations Abstracts International, Volume: 79-11, Section: B.

Thesis (Ph.D.)--University of Calgary (Canada), 2017.

This item must not be sold to any third party vendors.

Smart materials such as Shape Memory Alloys (SMA) are recently utilized for strengthening and repairing of concrete structures. The most common form of SMA wires used for concrete confinement applications is Nickle Titanium (NiTi) because it possesses unique thermo-mechanical properties such as the Shape Memory Effect (SME) along with high recovery stress (up to 600 MPa) and strain (up to 8 %). Initial investigations reported in the literature show that actively confining concrete columns with SMA wires can enhance the strength and significantly increase the ductility of concrete. To date, the vast majority of experiments on SMA-confined concrete have considered short, unreinforced, small-scale concrete cylinders subjected to concentric axial loading. The objective of this study is to present a systematic study of medium-size reinforced concrete circular columns, internally reinforced with longitudinal steel bars and transverse steel stirrups and externally confined with SMA wires, subjected to eccentric loading. Test data are compared against identical unconfined reinforced concrete (RC) columns, and confined RC columns strengthened passively using Carbon Fibre Reinforced Polymer (CFRP) wrap sheets, in order to quantify and verify the effectiveness of the active SMA-confinement method. In addition, an analytical model is presented to describe the behaviour of SMA-confined RC columns subjected to combined axial loads and bending moments. A parametric study was conducted to evaluate the effects of certain parameters on the overall response and the axial-flexural diagrams of the SMA-confined RC columns. The results of this study show that the RC columns confined with active SMA spirals exhibited significant enhancement in the strength and ductility compared to the unconfined RC columns subjected to varying load eccentricity. Additionally, the SMA-confined RC columns demonstrated superior overall performance when compared to the conventional passive CFRP-confined RC columns. The results of this study also show that the proposed analytical model conservatively predicted the axial load-bending moment response of the SMA-confined RC columns. The RC column confinement parameters investigated, namely the concrete compressive strength, the volumetric ratio of the SMA spirals, and the internal longitudinal steel reinforcement ratio, significantly influenced the load-moment interaction response of the SMA-confined RC columns.

ISBN: 9780355956122Subjects--Topical Terms:

3174102
Architectural engineering.

Performance of Eccentrically Loaded Reinforced Concrete Columns Confined with Shape Memory Alloy Wires.
LDR:03587nmm a2200325 4500 001 2211063
005 20191126114027.5
008 201008s2017 ||||||||||||||||| ||eng d
020 $a 9780355956122
035 $a (MiAaPQ)AAI10835030
035 $a AAI10835030
040 $a MiAaPQ $c MiAaPQ
100 1 $a Abdelrahman, Khaled. $3 3438218
245 1 0 $a Performance of Eccentrically Loaded Reinforced Concrete Columns Confined with Shape Memory Alloy Wires.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 474 p.
500 $a Source: Dissertations Abstracts International, Volume: 79-11, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
502 $a Thesis (Ph.D.)--University of Calgary (Canada), 2017.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a Smart materials such as Shape Memory Alloys (SMA) are recently utilized for strengthening and repairing of concrete structures. The most common form of SMA wires used for concrete confinement applications is Nickle Titanium (NiTi) because it possesses unique thermo-mechanical properties such as the Shape Memory Effect (SME) along with high recovery stress (up to 600 MPa) and strain (up to 8 %). Initial investigations reported in the literature show that actively confining concrete columns with SMA wires can enhance the strength and significantly increase the ductility of concrete. To date, the vast majority of experiments on SMA-confined concrete have considered short, unreinforced, small-scale concrete cylinders subjected to concentric axial loading. The objective of this study is to present a systematic study of medium-size reinforced concrete circular columns, internally reinforced with longitudinal steel bars and transverse steel stirrups and externally confined with SMA wires, subjected to eccentric loading. Test data are compared against identical unconfined reinforced concrete (RC) columns, and confined RC columns strengthened passively using Carbon Fibre Reinforced Polymer (CFRP) wrap sheets, in order to quantify and verify the effectiveness of the active SMA-confinement method. In addition, an analytical model is presented to describe the behaviour of SMA-confined RC columns subjected to combined axial loads and bending moments. A parametric study was conducted to evaluate the effects of certain parameters on the overall response and the axial-flexural diagrams of the SMA-confined RC columns. The results of this study show that the RC columns confined with active SMA spirals exhibited significant enhancement in the strength and ductility compared to the unconfined RC columns subjected to varying load eccentricity. Additionally, the SMA-confined RC columns demonstrated superior overall performance when compared to the conventional passive CFRP-confined RC columns. The results of this study also show that the proposed analytical model conservatively predicted the axial load-bending moment response of the SMA-confined RC columns. The RC column confinement parameters investigated, namely the concrete compressive strength, the volumetric ratio of the SMA spirals, and the internal longitudinal steel reinforcement ratio, significantly influenced the load-moment interaction response of the SMA-confined RC columns.
590 $a School code: 0026.
650 4 $a Architectural engineering. $3 3174102
650 4 $a Engineering. $3 586835
650 4 $a Civil engineering. $3 860360
690 $a 0462
690 $a 0537
690 $a 0543
710 2 $a University of Calgary (Canada). $b Civil Engineering. $3 3179240
773 0 $t Dissertations Abstracts International $g 79-11B.
790 $a 0026
791 $a Ph.D.
792 $a 2017
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10835030