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A platform for research: civil engineering, architecture and urbanism
Structural behavior of double-lap joints of steel splice plates bolted/bonded to pultruded hybrid CFRP/GFRP laminates
Highlights ► Double-lap hybrid joint is an effective method of joining the HFRP laminate. ► V-notched splice plates contribute to improve stiffness of the hybrid joint. ► Bolt-end distance has minor effect on failure strength of the hybrid joint. ► Adhesive carries most of the load before major debonding of the hybrid joint. ► Ultimate strength of the hybrid joint is governed by shear strength of the bolts.
Abstract This paper presents results from experimental and numerical studies on the structural behavior of double-lap joints of steel splice plates bolted/bonded to pultruded hybrid CFRP/GFRP laminates. A total of 45 tensile coupon specimens with double-lap bolted/bonded joints and six large-scale flexural beam specimens with/without butt joints in the mid-span section were conducted. Two types of double-lap joints were investigated including bolted joints and hybrid joints (bonded-and-bolted). The results indicate that the double-lap hybrid joint which combined of stainless steel bolts, adhesive bonding, and V-notched splice plates is an effective method of joining the hybrid FRP laminate. The rough surface of the V-notched splice plates and the adhesive bonding contribute to improve the joint stiffness. Numerical analysis was carried out to predict load–displacement curve of the hybrid joints and the results showed a good correlation with the experiments. A design idea for use in the practical design of joints was proposed.
Structural behavior of double-lap joints of steel splice plates bolted/bonded to pultruded hybrid CFRP/GFRP laminates
Highlights ► Double-lap hybrid joint is an effective method of joining the HFRP laminate. ► V-notched splice plates contribute to improve stiffness of the hybrid joint. ► Bolt-end distance has minor effect on failure strength of the hybrid joint. ► Adhesive carries most of the load before major debonding of the hybrid joint. ► Ultimate strength of the hybrid joint is governed by shear strength of the bolts.
Abstract This paper presents results from experimental and numerical studies on the structural behavior of double-lap joints of steel splice plates bolted/bonded to pultruded hybrid CFRP/GFRP laminates. A total of 45 tensile coupon specimens with double-lap bolted/bonded joints and six large-scale flexural beam specimens with/without butt joints in the mid-span section were conducted. Two types of double-lap joints were investigated including bolted joints and hybrid joints (bonded-and-bolted). The results indicate that the double-lap hybrid joint which combined of stainless steel bolts, adhesive bonding, and V-notched splice plates is an effective method of joining the hybrid FRP laminate. The rough surface of the V-notched splice plates and the adhesive bonding contribute to improve the joint stiffness. Numerical analysis was carried out to predict load–displacement curve of the hybrid joints and the results showed a good correlation with the experiments. A design idea for use in the practical design of joints was proposed.
Structural behavior of double-lap joints of steel splice plates bolted/bonded to pultruded hybrid CFRP/GFRP laminates
Hai, Nguyen Duc (author) / Mutsuyoshi, Hiroshi (author)
Construction and Building Materials ; 30 ; 347-359
2011-12-01
13 pages
Article (Journal)
Electronic Resource
English
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