Arching effect in laterally loaded urm walls

D.R.W. Martens, A.T. Vermeltfoort

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

165 Downloads (Pure)

Abstract

According to Eurocode 6 the load-bearing capacity of laterally loaded unreinforced masonry (URM) walls may be determined assuming arching effect. The rules adopted in EC6 are based on tests performed in the UK at CERAM in 1976 by Hodgkinson, Haseltine and West [2]. Based on the test results a design method was developed in which the depth of the compression zone was assumed to be 1/10th of the wall thickness. In the adopted analytical model the allowable compressive strength of the arch was taken as 1.5 times the compressive strength in axial compression neglected. Neglecting the deformation of the wall, the distributed lateral load-bearing capacity of an unreinforced masonry wall was calculated as Lf t d , where: t is the thickness of
the wall, d f is the compressive strength of the masonry in the direction of the arch thrust and L is the distance between the rigid supports.
In this paper the theory developed in the UK is analysed and compared to the results of preliminary
tests which were performed at the Structures Laboratory of Eindhoven University of Technology. Moreover, a new analytical model has been developed [6] which enables a more detailed calculation of the load-bearing capacity taking into account the deformation and initial imperfections of the wall.



















Original languageEnglish
Title of host publicationProceedings 13th Canadian Masonry Symposium
Pages1-12
Number of pages12
Publication statusPublished - Jun 2017
Event13th Canadian Masonry Symposium, July 4-7, 2017, Halifax, Canada - Halifax, Canada
Duration: 4 Jul 20177 Jul 2017
http://www.13thcms.com

Conference

Conference13th Canadian Masonry Symposium, July 4-7, 2017, Halifax, Canada
CountryCanada
CityHalifax
Period4/07/177/07/17
Internet address

Fingerprint

Bearing capacity
Compressive strength
Loads (forces)
Arches
Analytical models
Axial compression
Defects

Keywords

  • URM
  • arching effect
  • lateral loading

Cite this

Martens, D. R. W., & Vermeltfoort, A. T. (2017). Arching effect in laterally loaded urm walls. In Proceedings 13th Canadian Masonry Symposium (pp. 1-12)
Martens, D.R.W. ; Vermeltfoort, A.T. / Arching effect in laterally loaded urm walls. Proceedings 13th Canadian Masonry Symposium. 2017. pp. 1-12
@inproceedings{fe5df1161e2f46249c00325bbc000519,
title = "Arching effect in laterally loaded urm walls",
abstract = "According to Eurocode 6 the load-bearing capacity of laterally loaded unreinforced masonry (URM) walls may be determined assuming arching effect. The rules adopted in EC6 are based on tests performed in the UK at CERAM in 1976 by Hodgkinson, Haseltine and West [2]. Based on the test results a design method was developed in which the depth of the compression zone was assumed to be 1/10th of the wall thickness. In the adopted analytical model the allowable compressive strength of the arch was taken as 1.5 times the compressive strength in axial compression neglected. Neglecting the deformation of the wall, the distributed lateral load-bearing capacity of an unreinforced masonry wall was calculated as Lf t d , where: t is the thickness ofthe wall, d f is the compressive strength of the masonry in the direction of the arch thrust and L is the distance between the rigid supports.In this paper the theory developed in the UK is analysed and compared to the results of preliminary tests which were performed at the Structures Laboratory of Eindhoven University of Technology. Moreover, a new analytical model has been developed [6] which enables a more detailed calculation of the load-bearing capacity taking into account the deformation and initial imperfections of the wall.",
keywords = "URM, arching effect , lateral loading",
author = "D.R.W. Martens and A.T. Vermeltfoort",
year = "2017",
month = "6",
language = "English",
pages = "1--12",
booktitle = "Proceedings 13th Canadian Masonry Symposium",

}

Martens, DRW & Vermeltfoort, AT 2017, Arching effect in laterally loaded urm walls. in Proceedings 13th Canadian Masonry Symposium. pp. 1-12, 13th Canadian Masonry Symposium, July 4-7, 2017, Halifax, Canada, Halifax, Canada, 4/07/17.

Arching effect in laterally loaded urm walls. / Martens, D.R.W.; Vermeltfoort, A.T.

Proceedings 13th Canadian Masonry Symposium. 2017. p. 1-12.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

TY - GEN

T1 - Arching effect in laterally loaded urm walls

AU - Martens, D.R.W.

AU - Vermeltfoort, A.T.

PY - 2017/6

Y1 - 2017/6

N2 - According to Eurocode 6 the load-bearing capacity of laterally loaded unreinforced masonry (URM) walls may be determined assuming arching effect. The rules adopted in EC6 are based on tests performed in the UK at CERAM in 1976 by Hodgkinson, Haseltine and West [2]. Based on the test results a design method was developed in which the depth of the compression zone was assumed to be 1/10th of the wall thickness. In the adopted analytical model the allowable compressive strength of the arch was taken as 1.5 times the compressive strength in axial compression neglected. Neglecting the deformation of the wall, the distributed lateral load-bearing capacity of an unreinforced masonry wall was calculated as Lf t d , where: t is the thickness ofthe wall, d f is the compressive strength of the masonry in the direction of the arch thrust and L is the distance between the rigid supports.In this paper the theory developed in the UK is analysed and compared to the results of preliminary tests which were performed at the Structures Laboratory of Eindhoven University of Technology. Moreover, a new analytical model has been developed [6] which enables a more detailed calculation of the load-bearing capacity taking into account the deformation and initial imperfections of the wall.

AB - According to Eurocode 6 the load-bearing capacity of laterally loaded unreinforced masonry (URM) walls may be determined assuming arching effect. The rules adopted in EC6 are based on tests performed in the UK at CERAM in 1976 by Hodgkinson, Haseltine and West [2]. Based on the test results a design method was developed in which the depth of the compression zone was assumed to be 1/10th of the wall thickness. In the adopted analytical model the allowable compressive strength of the arch was taken as 1.5 times the compressive strength in axial compression neglected. Neglecting the deformation of the wall, the distributed lateral load-bearing capacity of an unreinforced masonry wall was calculated as Lf t d , where: t is the thickness ofthe wall, d f is the compressive strength of the masonry in the direction of the arch thrust and L is the distance between the rigid supports.In this paper the theory developed in the UK is analysed and compared to the results of preliminary tests which were performed at the Structures Laboratory of Eindhoven University of Technology. Moreover, a new analytical model has been developed [6] which enables a more detailed calculation of the load-bearing capacity taking into account the deformation and initial imperfections of the wall.

KW - URM

KW - arching effect

KW - lateral loading

M3 - Conference contribution

SP - 1

EP - 12

BT - Proceedings 13th Canadian Masonry Symposium

ER -

Martens DRW, Vermeltfoort AT. Arching effect in laterally loaded urm walls. In Proceedings 13th Canadian Masonry Symposium. 2017. p. 1-12