TINJAUAN LENTUR DINDING BATA MERAH DENGAN PERKUATAN STRAPPING BAND ARAH RETAK VERTIKAL (Studi kasus : tebal plesteran 2 cm, beban siklik quasistatik)

• Main Authors: , GUMBERT MAYLDA PRATAMA, , Dr. Ing. Ir. Andreas Triwiyono.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2014
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/132498/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=73033
• Institution: Universitas Gadjah Mada

Masonry wall is a vulnerable part of building when subjected to seismic load. Outof- plane seismic load could trigger initial crack on masonry wall, which reduce strength of masonry wall. Strapping band, which have high tensile strength, could be used as a masonry wall reinforcement. The purposes of this study is to understand masonry wall with strapping band mesh reinforcement behaviour, especially the damping ratio and ductillity, under seismic load. This study use flexural test on vertical crack direction with cyclic quasistatic load. Cyclic quasistatic load subjected to masonry wall with control of the displacement. Every load cycle was repeated by three times. This test use four masonry wall as specimens, one unreinforced masonry wall and three strapping band mesh reinforced masonry wall, with 10 cm, 15 cm, and 20 cm mesh pitches variation. The specimen have 120 cm x 77 cm x 10.3 cm on dimension. The data from flexural test could be processed then to obtain hysteretic curve to understand masonry wall behaviour. The flexural test shows degradation on masonry wall first crack flexural strength on strapping band mesh reinforcement massonry wall. First crack flexural strength on unreinforced masonry wall is 0.83 MPa, while on strapping band mesh reinforced masonry wall is 0.68 MPa, 1.01 MPa, dan 0.54 MPa for each mess pitches 20 cm, 15 cm, and 10 cm variation. By strapping band reinforcement, total cost for masonry wall have increase of 32%, 36%, and 42% for each mesh pitches 20 cm, 15 cm, and 10 cm variation.