Perkuatan lentur pelat jembatan bentang 5 meter dengan penambahan tulangan tunggal menggunakan perekat epoxy
The strength of reinforced concrete slab can fail because of over loading. One way to continue without any rebuilding is by doing structural strengthening. This experiment’s aim is to know the enhancement of flexural capacity, stiffness, ductility and failure pattern of a bridge slab which is streng...
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| Format: | Theses and Dissertations NonPeerReviewed |
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[Yogyakarta] : Universitas Gadjah Mada
2008
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| Online Access: | https://repository.ugm.ac.id/76734/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=37599 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | The strength of reinforced concrete slab can fail because of over loading. One way to continue without any rebuilding is by doing structural strengthening. This experiment’s aim is to know the enhancement of flexural capacity, stiffness, ductility and failure pattern of a bridge slab which is strengthened by using additional reinforcing bar on the tensile zone and epoxy adhesive material. Four reinforced concrete slabs, consisted of two slabs without strengthened (PK), two slabs were strengthened equal to 60% (PPTT 60%) and 120% (PPTT 120%), were made in order to know the difference happened as the result of the increasing of strength given. All specimens had dimensions of 1000 mm x 1800 mm x 100 mm. Specimen was placed on the loading frame with simply supported edge on both ends and was given static load as wide as tire on the middle of the slab span. Numerical approach using ATENA 3D non-linear analysis program was done in order to give comparison to the result of experiment. The result of the flexural capacity of PK, PPTT 60% and PPTT 120% successively are 38.2 kNm, 60.4 kNm, and 67.6 kNm. By comparing them to control slab (PK), flexural capacity of the reinforced concrete slab with additional bar for PPTT 60% and PPTT 120% increase, each of 58.12% and 76.96%. The increase of stiffness of the reinforced concrete slab is 66.996% and 70.689%, each for PPTT60% and PPTT 120%. The ductility factor of PPTT 60% and PPTT 120% decrease, each of 25.124% and 63.859%, compared to control slab. PK slabs experience flexural failure pattern, while flexural strength PPTT 60% slab and PPTT 120% slab experience combination failure pattern between flexure which is more dominant and shear. |
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