Confined Masonry#

General description#

Description:Masonry construction where masonry walls are first laid and then horizontal and vertical reinforced concrete confining elements are cast. In this type of construction the concrete bonds to the masonry and the small-size columns and beams (called tie-columns and tie-beams) confine masonry wall panels. GEM taxonomy:MCF/LWAL+DUL/H1:5; MCF/LWAL+DUM/H1:5; MCF/LWAL+DUH/H1:5

image

Capacity parameters#

Building class

Yield drift [%]

Ultimate drift [%]

Ty [s]=f(Height [m])

Yield period [s]

MCF/LWAL+DUL/H1

0.2

0.8

0.044*H+0.0

0.12

MCF/LWAL+DUL/H2

0.2

0.8

0.044*H+0.0

0.25

MCF/LWAL+DUL/H3

0.2

0.8

0.044*H+0.0

0.37

MCF/LWAL+DUL/H4

0.2

0.8

0.044*H+0.0

0.49

MCF/LWAL+DUL/H5

0.2

0.8

0.044*H+0.0

0.62

MCF/LWAL+DUL/H6

0.2

0.8

0.044*H+0.0

0.74

MCF/LWAL+DUM/H1

0.24

0.95

0.042*H+0.0

0.12

MCF/LWAL+DUM/H2

0.24

0.95

0.042*H+0.0

0.24

MCF/LWAL+DUM/H3

0.24

0.95

0.042*H+0.0

0.35

MCF/LWAL+DUM/H4

0.24

0.95

0.042*H+0.0

0.47

MCF/LWAL+DUM/H5

0.24

0.95

0.042*H+0.0

0.59

MCF/LWAL+DUM/H6

0.24

0.95

0.042*H+0.0

0.71

MCF/LWAL+DUH/H1

0.28

1.05

0.04*H+0.0

0.11

MCF/LWAL+DUH/H2

0.28

1.05

0.04*H+0.0

0.22

MCF/LWAL+DUH/H3

0.28

1.05

0.04*H+0.0

0.34

MCF/LWAL+DUH/H4

0.28

1.05

0.04*H+0.0

0.45

MCF/LWAL+DUH/H5

0.28

1.05

0.04*H+0.0

0.56

MCF/LWAL+DUH/H6

0.28

1.05

0.04*H+0.0

0.67

MCF/LWAL+DUL/H1/CCA

0.22

1.04

0.044*H+0.0

0.12

MCF/LWAL+DUL/H2/CCA

0.22

1.04

0.044*H+0.0

0.25

MCF/LWAL+DUL/H3/CCA

0.22

1.04

0.044*H+0.0

0.37

MCF/LWAL+DUL/H4/CCA

0.22

1.04

0.044*H+0.0

0.49

MCF/LWAL+DUL/H5/CCA

0.22

1.04

0.044*H+0.0

0.62

MCF/LWAL+DUL/H6/CCA

0.22

1.04

0.044*H+0.0

0.74

MCF/LWAL+DUM/H1/CCA

0.26

1.1

0.042*H+0.0

0.12

MCF/LWAL+DUM/H2/CCA

0.26

1.1

0.042*H+0.0

0.24

MCF/LWAL+DUM/H3/CCA

0.26

1.1

0.042*H+0.0

0.35

MCF/LWAL+DUM/H4/CCA

0.26

1.1

0.042*H+0.0

0.47

MCF/LWAL+DUM/H5/CCA

0.26

1.1

0.042*H+0.0

0.59

MCF/LWAL+DUM/H6/CCA

0.26

1.1

0.042*H+0.0

0.71

Capacity plots#

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References#

A list of references and respective capacity parameters consulted during the definition of GEM’s capacity curves is presented below.

Reference

URL

Yield drift [%]

Ult drift [%]

Ty=f(H) [s]

Ahmed et al 2018

https://doi.org/10.1155/2018/4756352

0.05

0.75

-

Gavilan et al 2015

https://doi.org/10.1193/090712EQS284M

0.18

0.67

-

Erkoseoglu et al 2014

http://www.eaee.org/Media/Default/2ECCES/2ecces_eaee/1156.pdf

0.77

1

-

Magenes and Calvi 1992

https://www.iitk.ac.in/nicee/wcee/article/10_vol6_3517.pdf

0.25

0.9

-

Nucera et al 2012

https://www.iitk.ac.in/nicee/wcee/article/WCEE2012_4879.pdf

0.1

0.4

-

Villar-Vega et al 2017

https://doi.org/10.1193/010716EQS005M

0.32-0.36

0.8-1.2

0.042*H