Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/14208
Title: Evaluation of a sprayable, ductile cement-based composite for the seismic retrofit of unreinforced masonry infills
Authors: Billington, Sarah L. 
Kyriakides, Marios 
Blackard, Ben 
Willam, Kaspar 
Stavridis, Andreas N. 
Shing, P. Benson 
Major Field of Science: Engineering and Technology
Field Category: Civil Engineering
Keywords: Reinforced concrete;Masonry materials;Infilled frame
Issue Date: 1-Dec-2009
Source: 2009 ATC and SEI Conference on Improving the Seismic Performance of Existing Buildings and Other Structures; San Francisco, CA; United States; 9 December 2009 through 11 December 2009
Conference: ATC and SEI Conference on Improving the Seismic Performance of Existing Buildings and Other Structures 
Abstract: A new retrofit technique for unreinforced masonry infills in non-ductile reinforced concrete frame structures is being investigated. The proposed technique uses a thin layer of sprayable, ductile fiber-reinforced mortar material referred to as Engineered Cementitious Composites, or ECC. The aim of the retrofit is to hold the masonry wall together to delay infill and frame strength degradation and enhance system ductility. Proof-of-concept experiments on retrofitted masonry prisms and beams demonstrated large increases in strength and ductility. Quasi-static, in-plane, cyclic testing of small-scale frames with masonry infills including 3 retrofit designs demonstrated a 10x increase in ductility in one design relative to the unretrofitted system. Results were used to design a retrofit for a 2/3-scale, in-plane test, where a 2.6× increase in ductility was achieved. Several finite element modeling approaches are under investigation for use in system predictions and further retrofit analyses. © 2009 ASCE.
Description: Improving the Seismic Performance of Existing Buildings and Other Structures - Proc. 2009 ATC and SEI Conference on Improving the Seismic Performance of Existing Buildings and Other Structures, 2009, Pages 823-834
URI: https://hdl.handle.net/20.500.14279/14208
ISBN: 978-078441084-4
DOI: 10.1061/41084(364)75
Type: Conference Papers
Affiliation : Cyprus University of Technology 
University of Colorado 
Stanford University 
Publication Type: Peer Reviewed
Appears in Collections:Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation

CORE Recommender
Show full item record

SCOPUSTM   
Citations 20

26
checked on Nov 6, 2023

Page view(s) 20

311
Last Week
0
Last month
4
checked on Dec 23, 2024

Google ScholarTM

Check

Altmetric


Items in KTISIS are protected by copyright, with all rights reserved, unless otherwise indicated.