Alternative technology of constructing masonry structures designed for areas with increased seismic activity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00015253%3A_____%2F16%3AN0000001" target="_blank" >RIV/00015253:_____/16:N0000001 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26110/16:PU119742

Result on the web

<a href="http://dx.doi.org/10.1016/j.proeng.2016.07.374" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2016.07.374</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.proeng.2016.07.374" target="_blank" >10.1016/j.proeng.2016.07.374</a>

Result language

angličtina

Original language name

Alternative technology of constructing masonry structures designed for areas with increased seismic activity

Original language description

The Czech Republic is a country which generally sees low seismic activity; however, this activity needs to be taken into account in ca 50 % of the country’s area with 10 districts being considered as having seismic activity higher than 0.08 g. In terms of masonry structures, this issue concerns mainly the execution of the head joints of the masonry and its reinforcement (both in the direction of the bed joint and in the perpendicular direction). All these technologies are rather difficult and expensive to implement. The research focuses on assessing the possibilities of constructing dry masonry and binding it with polyurethane foam. This method allows for significantly higher shear strength of the masonry and appears to be an interesting alternative in the area of constructing buildings in seismically active areas. The structure was stiffened by filling hollow masonry units with large cavities with polyurethane foam. The PUR foam was sprayed into the units during construction. The foam thus applied hardens perpendicularly to the bed joint of the masonry and, having expanded throughout the clay units, it functions as a binder and a stiffening component to the masonry as a whole. The initial shear and flexural strength of the masonry segments was determined. The newly developed method of filling the cavities of masonry units with PUR foam was compared with the conventional method of constructing masonry by means of bonding the blocks with mortar or PUR foam in the bed joints (with no cavities filled). The filling of the masonry unit cavities brought a significant increase in the shear and flexural strength of the masonry. This indicates the stiffness of the structure increased as well.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JN - Civil engineering

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Procedia Engineering

ISSN

1877-7058

e-ISSN

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Volume of the periodical

151

Issue of the periodical within the volume

2016

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

177-182

UT code for WoS article

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EID of the result in the Scopus database

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