Adobe and earthen structures#

General description#

Description: Sun-dried (or air-dried), unfired mud (clay) masonry, where the clay is cast into blocks (and sometimes into bricks) and then laid, as opposed to walls constructed in-place out of earth, as in earth construction (cob or rammed earth). Earthen construction includes a variety of techniques where entire buildings or their components are built from earth, with or without additives or reinforcement. Earthen construction does not include adobe which is considered to be masonry. GEM taxonomy: MUR+ADO/LWAL+DNO/H1:3; EU/LWAL+DNO/H1:3

image

Capacity parameters#

Building class

Yield drift [%]

Ultimate drift [%]

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

Yield period [s]

MUR+ADO/LWAL+DNO/H1

0.13

0.64

0.066*H^0.95

0.16359446888119913

MUR+ADO/LWAL+DNO/H2

0.13

0.64

0.066*H^0.95

0.3160436814070307

MUR+ADO/LWAL+DNO/H3

0.13

0.64

0.066*H^0.95

0.4645514372966369

MUR+ADO/LWAL+DNO/H1/CCA

0.16

0.69

0.06105*H^0.95

0.1513248837151092

MUR+ADO/LWAL+DNO/H2/CCA

0.16

0.69

0.06105*H^0.95

0.2923404053015034

MUR+ADO/LWAL+DNO/H3/CCA

0.16

0.69

0.06105*H^0.95

0.4297100794993891

EU/LWAL+DNO/H1

0.06999999999999999

0.5499999999999999

0.06402*H^0.95

0.1586866348147631

EU/LWAL+DNO/H2

0.06999999999999999

0.5499999999999999

0.06402*H^0.95

0.30656237096481975

EU/LWAL+DNO/H3

0.06999999999999999

0.5499999999999999

0.06402*H^0.95

0.45061489417773776

Capacity plots#

image image image image image image image image image

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]

Tarque et al 2012

https://doi.org/10.1193/1.4000001

0.052

0.52

0.09*H^0.75

Villar-Vega et al 2017

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

0.11

0.575

0.055*H

Karanikoloudis and Lourenço 2018

https://doi.org/10.1016/j.engstruct.2017.12.023

0.03

0.09

-

Silveira et al 2018

https://doi.org/10.1080/15583058.2017.1423131

0.03

0.16

-

Battaglia et al 2020

https://doi.org/10.1002/eqe.3405

0.11

0.37

-

Lang et al 2018

https://doi.org/10.1016/j.jobe.2017.11.022

0.13-0.26

0.47-0.97

-