Results of investigation into the behaviour of a grouted steel bolt abutment set on a laboratory physical model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F15%3A86095678" target="_blank" >RIV/61989100:27120/15:86095678 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5593/SGEM2015/B12/S2.080" target="_blank" >http://dx.doi.org/10.5593/SGEM2015/B12/S2.080</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/SGEM2015/B12/S2.080" target="_blank" >10.5593/SGEM2015/B12/S2.080</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Results of investigation into the behaviour of a grouted steel bolt abutment set on a laboratory physical model

Popis výsledku v původním jazyce

The article brings outputs of laboratory tests that have been conducted on physical model of embedded bolt on a model scale 1:1. The Physical model consists of a cylindrical concrete block of a diameter of 150 mm that a thick-wall cylindrical steel sleeve envelopes. The unconfined compressive strength of concrete block is 70 MPa and modulus of elasticity 25 GPa. The bolt rod is grouted in the borehole of a diameter 34 mm drilled in the cylinder block center. The tests have been carried out for steel ribbed rod of diameter 24/27 mm cemented in the borehole with fly ash and cement mortar respectively. The lengths of the rod bolt abutment are 150, 300 to 450 mm. On prepared models of grouted steel bolt abutment there was done pull-out test to record the tensile pull-out force at bolt head and the displacements at two points of the bolt rod on start and end of the abutment section. Another output of the test on the physical model clarifies the causes and documents the abutment failure for both mortar materials. The both examined mortar materials show different behavior with regard to both scrutinized phenomena pull-out test curves and mode of abutment failure. Outputs are documented on graph for pull-out test and photos for the abutment failures. From the pull-out test record for the surveyed abutment lengths and both mortar materials are extracted the maximum tensile forces at abutment failure and next set up dependency for the maximum strength on the length.

Název v anglickém jazyce

Results of investigation into the behaviour of a grouted steel bolt abutment set on a laboratory physical model

Popis výsledku anglicky

The article brings outputs of laboratory tests that have been conducted on physical model of embedded bolt on a model scale 1:1. The Physical model consists of a cylindrical concrete block of a diameter of 150 mm that a thick-wall cylindrical steel sleeve envelopes. The unconfined compressive strength of concrete block is 70 MPa and modulus of elasticity 25 GPa. The bolt rod is grouted in the borehole of a diameter 34 mm drilled in the cylinder block center. The tests have been carried out for steel ribbed rod of diameter 24/27 mm cemented in the borehole with fly ash and cement mortar respectively. The lengths of the rod bolt abutment are 150, 300 to 450 mm. On prepared models of grouted steel bolt abutment there was done pull-out test to record the tensile pull-out force at bolt head and the displacements at two points of the bolt rod on start and end of the abutment section. Another output of the test on the physical model clarifies the causes and documents the abutment failure for both mortar materials. The both examined mortar materials show different behavior with regard to both scrutinized phenomena pull-out test curves and mode of abutment failure. Outputs are documented on graph for pull-out test and photos for the abutment failures. From the pull-out test record for the surveyed abutment lengths and both mortar materials are extracted the maximum tensile forces at abutment failure and next set up dependency for the maximum strength on the length.

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

<a href="/cs/project/TE01020168" target="_blank" >TE01020168: Centrum pro efektivní a udržitelnou dopravní infrastrukturu (CESTI)</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

SGEM 2015 : 15th international multidisciplinary scientific geoconference : conference proceedings : 18-24 June, 2015, Albena, Bulgaria. Science and Technologies in Geology, Exploration and Mining. Volume II

ISBN

978-619-7105-32-2

ISSN

1314-2704

e-ISSN

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Počet stran výsledku

7

Strana od-do

603-609

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

18. 6. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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