A nonlinear shear-lag model applied to chemical anchors subjected to a temperature distribution

Adhesive joints are increasingly used in bridges and buildings construction thanks to their high mechanical properties and their ease of implementation. However, the load transfer mechanism within adhesive joints is complex and has been the subject of several studies since 1938. Several models have...

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Bibliographic Details
Published inInternational journal of adhesion and adhesives Vol. 84; pp. 438 - 450
Main Authors Lahouar, Mohamed Amine, Pinoteau, Nicolas, Caron, Jean-François, Foret, Gilles, Mege, Romain
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.08.2018
Elsevier BV
Elsevier
Subjects
Adhesive bonding
Adhesive joints
Adhesives
Anchor slip
Anchors
Axial forces
Bond stress
Bridge construction
Chemical anchors
Engineering Sciences
Fire resistance
Load
Load bearing capacity
Load transfer
Mechanical properties
Mechanics
Organic chemistry
Shear-lag model
Stress concentration
Stress distribution
Structural engineering
Structural mechanics
Temperature
Temperature distribution
Temperature effects
Fire resistance
Temperature distribution
Load bearing capacity
Chemical anchors
Bond stress
Anchor slip
Shear-lag model
CHEMICAL ANCHOR
SHEAR LAG
TEMPERATURE DISTRIBUTION
SLIP
BOND STRESS
LOAD BEARING CAPACITY
FIRE RESISTANCE
NONLINEAR MODEL
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ISSN0143-7496
1879-0127
DOI10.1016/j.ijadhadh.2018.05.002

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Summary:Adhesive joints are increasingly used in bridges and buildings construction thanks to their high mechanical properties and their ease of implementation. However, the load transfer mechanism within adhesive joints is complex and has been the subject of several studies since 1938. Several models have been developed to quantify the stress distribution along bond joints. Nevertheless, very few models exist today to study the stress distribution in chemical anchors by taking into account the temperature effect. This paper presents a non-linear shear-lag model adapted to chemical anchors allowing predicting their stress distribution profiles and fire resistance duration for any temperature distribution. The model highlights the importance of the temperature distribution on the stress profile. The paper shows that when the anchor reaches its maximum axial force, all the elements composing the anchor provide their maximum performance at the same time.
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ISSN:0143-7496
1879-0127
DOI:10.1016/j.ijadhadh.2018.05.002