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Simplified Density Indexes of Walls and Tie-Columns for Confined Masonry Buildings in Seismic Zones

Cai, G., Su, Q., Tsavdaridis, K. D. ORCID: 0000-0001-8349-3979 and Degée, H. (2020). Simplified Density Indexes of Walls and Tie-Columns for Confined Masonry Buildings in Seismic Zones. Journal of Earthquake Engineering, 24(3), doi: 10.1080/13632469.2018.1453396


This paper discusses and quantifies the minimum requirements of walls and tie-columns in confined masonry (CM) buildings located in earthquake-prone regions. A research database including 238 damaged CM buildings obtained from the 2008 Wenchuan earthquake survey is established and comprehensively examined. The requirements of masonry walls in CM buildings are discussed, and a simplified tie-column density index is proposed for evaluating the potential damage of the structures. Besides, the minimum requirements of reinforced concrete tie-columns and their maximum allowable spacing in CM buildings at different seismic intensity zones are discussed.

Publication Type: Article
Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Earthquake Engineering on 18 Apr 2018, available online:
Publisher Keywords: Confined Masonry, Seismic Assessment, Design Requirements, Wall Density, Tie-Column Density Spacing of Tie-Columns, Database of Damaged Buildings
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
Departments: School of Mathematics, Computer Science & Engineering > Engineering > Civil Engineering
Project Input:
Project IDFunder NameFunder ID
51308473National Natural Science Foundation of China
2014S001Department of Housing & Urban-Rural Development of Sichuan provinceUNSPECIFIED
Date available in CRO: 03 Nov 2021 10:18
Date deposited: 3 November 2021
Date of acceptance: 2 December 2017
Date of first online publication: 18 April 2018
Text - Accepted Version
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