Open engineering: Experimental investigation on strengthening lap joints subjected to bending in glulam timber beams using CFRP sheets

Al-Tameemi, Haider Ali; Al-Katib, Haider A. A.; Alkhudery, Hayder H.

Experimental investigation on strengthening lap joints subjected to bending in glulam timber beams using CFRP sheets / Al-Tameemi, Haider Ali (CC BY)

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Metadata : Experimental investigation on strengthening lap joints subjected to bending in glulam timber beams using CFRP sheets / Al-Tameemi, Haider Ali (CC BY)

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There is no access restriction for this record.

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CC BY: Attribution 4.0 International. You can find more information here.

Periodical

Title:: Open engineering

Publication:: Berlin: de Gruyter

Note:: Gesehen am 23.06.15; Open Access; Namensnennung 4.0 International

Scope:: Online-Ressource

ISSN:: 2391-5439

ZDB-ID:: 2825447-8

VÖBB-Katalog:: 35304452

Previous Title:: Central European Journal of Engineering

Keywords:: Zeitschrift

Classification:: Technik

Collection:: Technik

Copyright:: Rights reserved

Accessibility:: Free Access

Title:: Open engineering

Publication:: Berlin: de Gruyter

Note:: Gesehen am 23.06.15; Open Access; Namensnennung 4.0 International

Scope:: Online-Ressource

ISSN:: 2391-5439

ZDB-ID:: 2825447-8

VÖBB-Katalog:: 35304452

Previous Title:: Central European Journal of Engineering

Keywords:: Zeitschrift

Classification:: Technik

Collection:: Technik

Copyright:: Rights reserved

Accessibility:: Free Access

Article

Author:: Al-Tameemi, Haider Ali; Al-Katib, Haider A. A.; Alkhudery, Hayder H.

Title:: Experimental investigation on strengthening lap joints subjected to bending in glulam timber beams using CFRP sheets

Publication:: Berlin: de Gruyter, 2024

Language:: English

Information:: Abstract: Strengthening the carpentry joints is considered a big challenge for designers to maintain the joined timber elements’ load transfer and integrity. This research work investigates different techniques to strengthen the lap joints in glulam timber beams using carbon fiber-reinforced polymer (CFRP) sheets. For this purpose, 12 specimens of glulam timber beams were tested using the four-point loading method. One of the glulam timber specimens was an intact nonlapped specimen, and the others were lapped at mid-span using half-height lap joints. The lap joints were strengthened using different configurations of the CFRP sheets. The test variables were the clamping scheme, bond length, and reinforcement ratio of the CFRP sheets. The analysis of the test results indicates that the CFRP strengthening configuration could be more effective in strengthening the lapped glulam timber beams when the reinforcement ratio of the longitudinal CFRP sheets was equal to 0.303%, and the wrapping CFRP sheets continued beyond the lapped joint by a distance equal to the beam height. Such a strengthening configuration could succeed in increasing the effective stiffness and ultimate load of the lapped timber specimen to 109 and 110%, respectively, relative to those of the intact nonlapped specimen. Moreover, the results reveal that increasing the length or the reinforcement ratio of the longitudinal CFRP sheets without increasing the width of the wrapping CFRP sheets could not succeed in achieving the required improvements in the structural behavior of the lapped timber beams.

Scope:: Online-Ressource

Note:: Open Access; Archivierung/Langzeitarchivierung gewährleistet

Keywords:: CFRP sheet ; glulam timber beams ; lap joints ; reinforcement ratio ; wrapping sheet

Classification:: Technik; Sonstiges

URN:: urn:nbn:de:101:1-2024031514493640266049

Collection:: Technik; Sonstiges

Copyright:: CC BY

Accessibility:: Free Access

Author:: Al-Tameemi, Haider Ali; Al-Katib, Haider A. A.; Alkhudery, Hayder H.

Title:: Experimental investigation on strengthening lap joints subjected to bending in glulam timber beams using CFRP sheets

Publication:: Berlin: de Gruyter, 2024

Language:: English

Information:: Abstract: Strengthening the carpentry joints is considered a big challenge for designers to maintain the joined timber elements’ load transfer and integrity. This research work investigates different techniques to strengthen the lap joints in glulam timber beams using carbon fiber-reinforced polymer (CFRP) sheets. For this purpose, 12 specimens of glulam timber beams were tested using the four-point loading method. One of the glulam timber specimens was an intact nonlapped specimen, and the others were lapped at mid-span using half-height lap joints. The lap joints were strengthened using different configurations of the CFRP sheets. The test variables were the clamping scheme, bond length, and reinforcement ratio of the CFRP sheets. The analysis of the test results indicates that the CFRP strengthening configuration could be more effective in strengthening the lapped glulam timber beams when the reinforcement ratio of the longitudinal CFRP sheets was equal to 0.303%, and the wrapping CFRP sheets continued beyond the lapped joint by a distance equal to the beam height. Such a strengthening configuration could succeed in increasing the effective stiffness and ultimate load of the lapped timber specimen to 109 and 110%, respectively, relative to those of the intact nonlapped specimen. Moreover, the results reveal that increasing the length or the reinforcement ratio of the longitudinal CFRP sheets without increasing the width of the wrapping CFRP sheets could not succeed in achieving the required improvements in the structural behavior of the lapped timber beams.

Scope:: Online-Ressource

Note:: Open Access; Archivierung/Langzeitarchivierung gewährleistet

Keywords:: CFRP sheet ; glulam timber beams ; lap joints ; reinforcement ratio ; wrapping sheet

Classification:: Technik; Sonstiges

URN:: urn:nbn:de:101:1-2024031514493640266049

Collection:: Technik; Sonstiges

Copyright:: CC BY

Accessibility:: Free Access

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