Influence of glue rheology and joint thickness on the strength of bonded-in rods

被引：55
作者：
Feligioni, L
Lavisci, P
Duchanois, G
De Ciechi, M
Spinelli, P
机构：
[1] CNR, Inst Valorizzaz Legno & Specie Arboree, I-50019 Sesto Fiorentino, Italy
[2] LegnoDOC Srl, I-50145 Florence, Italy
[3] UHP ENSTIB 1093, ENGREF, LERMAB UMR INRA, Equipe Genie Civil Bois, F-88051 Epinal, France
[4] Mapei Spa, I-20158 Milan, Italy
[5] Univ Florence, Dipartimento Ingn Civile, I-50139 Florence, Italy
来源：
HOLZ ALS ROH-UND WERKSTOFF | 2003年 / 61卷 / 04期
关键词：
Glue strength;
D O I：
10.1007/s00107-003-0387-4
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
The maximum pull-out strength of bonded-in rods was used for investigating the relationship between the joint geometry and the rheology of the structural adhesive. Tests with a brittle and a ductile glue type, both formulated with epoxy resins, showed that the glue rheology has a strong influence on the joint behaviour. The joint thickness is also an important parameter, having a good correlation with pull-out strength and with the fracture typology. Wood density and moisture content had a very low influence on strength, in these test conditions. A modification of the Eurocode 5 equation was developed, allowing an improved use of the adhesive properties for a safer design. Results suggest that a standardised test method for bonded-in rods would be very helpful for the determination of basic joint properties such as the maximum joint thickness and the glue strength parameter that were used in the modified design equation.
引用
收藏
页码：281 / 287
页数：7
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