Damage limit states for confined masonry walls based on experimental test

Authors

  • Carlos Zavala Japan-Peru Center for Earthquake Engineering Research and Disaster Mitigation, Civil Engineering Faculty, National University of Engineering, Lima, Peru.
  • Miguel Diaz Japan-Peru Center for Earthquake Engineering Research and Disaster Mitigation, Civil Engineering Faculty, National University of Engineering, Lima, Peru.
  • Erika Flores Japan-Peru Center for Earthquake Engineering Research and Disaster Mitigation, Civil Engineering Faculty, National University of Engineering, Lima, Peru.
  • Lourdes Cardenas Japan-Peru Center for Earthquake Engineering Research and Disaster Mitigation, Lima, Peru.

DOI:

https://doi.org/10.21754/tecnia.v29i2.715

Keywords:

Mansory, Non-engineering wall, Tubular hollow brick, Limit state ranges

Abstract

Non engineering dwellings represents 83% of the stock of housing in emerging areas of Lima city. These dwellings are build with non-appropriated masonry bricks with walls that limits don´t meet the displacement control of the earthquake design standards NTE-030 and NTE-070. Considering the database of structural test of 33 years of experimental studies of the Structural Laboratory of CISMID, typical behavior curves are studied in order to propose damage limit state for masonry walls: build with industrial bricks, build with handmade bricks and build with horizontal hollow tubular bricks. Also, results of full-scale test on masonry house performed in the laboratory are studied. Ranges of inelastic development limit states of walls are proposed from the test results of full-scale test of the three types of masonry. Big difference in the capacity of walls with tubular bricks in comparison with the others types are found. Also limit drift values threshold are propose to be use in the analytical modelling of wall structures with handmade or tubular bricks. These proposal limits are smaller than the limit of NTE-030 standard.

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References

[1]Cardenas L, Roy R, Estacio L and Zavala C2014 Implementation of Database of Masonry Walls Test –Review of Existing Test Data in Peru.Journal of DisasterResearch9(6)

[2]CISMID 2015 Comparison of Behavior of Non-Engineering Masonry Walls under Lateral Cyclic Loading without and with Retrofitting. Program 0068 –Reduction of Vulnerability and Assistant of emergencies by Disasters. Lima-Peru. 2015(In Spanish)

[3]CISMID 2017“Tests of full-scale walls and elaboration of corresponding fragility curves oriented to the development of knowledge about seismic behavior of nonengineered masonry walls and to enable the estimation of losses for earthquake scenario”, Report commissioned by SENCICO

[4]CISMID 2015 Experimental Study of Mechanical Properties of Tubular Units without and with Retrofitting. Program 0068 –Reduction of Vulnerability and Assistant of Emergencies by Disasters. Lima-Peru(In Spanish)

[5]DiazM, Zavala C, Gallardo J, Lavado L 2017 “Experimental study of non-engineered confined masonry walls retrofitted with wire mesh and cement-sand mortar”, 16th World Conference on EarthquakeEngineering, Chile.

[6]Diaz M 2019 Report on statistical analysis and target study Area in Lima Metropolitan and Callao. Project FONDECYT-CISMID-FIC-UNI Development a digital tool for feasibility of confined masonry dwelling retrofitting in multi seismic scenarios based on assessment of vulnerability and risk

[7]Lavado L, Taira J and Gallardo J 2014Current State of Masonry Properties Material on Emerging Zones in Lima City. Journal of Disaster Research,9(6)

[8]Salinas Rand Lazares F 2008Seismic Performance of Confined Masonry Buildings with Tubular Bricks in Developing Areas. Proceedings of 14th World Conference on Earthquake Engineering. China

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Published

2019-08-12

How to Cite

[1]
C. Zavala, M. Diaz, E. Flores, and L. Cardenas, “Damage limit states for confined masonry walls based on experimental test”, TEC, vol. 29, no. 2, p. 135.141, Aug. 2019.

Issue

Vol. 29 No. 2 (2019): Earthquake Engineering

Section

Earthquake Engineering Design and Evaluation

License

Copyright (c) 2019 TECNIA

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