PERILAKU LENTUR BALOK BETON BERTULANG TAMPANG T YANG DIPERKUAT PADA DAERAH MOMEN NEGATIF DENGAN WIRE ROPE DAN KOMPOSIT MORTAR

• Main Authors: , YANUAR HARYANTO, , Prof. Ir. Iman Satyarno, ME, Ph.D
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2012
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/97885/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=54059
• Institution: Universitas Gadjah Mada

The loss due to collapsing structure includes not only materials but may also take lives. In the case of structure function changing that may cause increasing loads, it is required to put efforts in strengthening the structure elements in order to increase the capacity and hence to avoid the possibility of collapsing. The objective of this research was to study the behavior of T-sectional reinforced concrete beam strengthened in the negative moment region by wire rope and mortar composite. The test was carried out to three T-sectional beams: without wire rope reinforcement (BK), with 2 wire rope reinforcements (BP1), and with 4 wire rope (BP2) reinforcements. The type of wire rope was Independent Wire Rope Core (IWRC) with 10 mm diameter. The testing method used was two points static loading with flens positions below (the flens part experienced tensile stress). Results showed that the maximum load carrying capacity of BP1 and BP2 specimens increased by ratios of 1.59 and 2.03 to the BK specimen respectively. However, the increase was achieved after the development and propagation of high cracking. Ductility of BP1 and BP2 specimens decreased by ratios of 0.62 and 0.36 to the BK specimen respectively. The initial stiffness of BP1 and BP2 increased by ratios of 1.09 and 1.08 to the BK specimen respective. The effective stiffness of BP1 and BP2 specimens decreased by respective ratios of 0.88 and 0.92 to the BK specimen. Stress occurred in the wire rope based on the analysis results of Response-2000 and the layer method have not reached 50% of the ultimate stress resulted from the preliminary tess. In general, unless improvement was given to the stiffness characteristics of the wire rope, its contribution would not become optimum.