BAB VI Kesimpulan
VI.2 Saran
Saran yang dapat diberikan untuk perbaikan dan pengembangan studi selanjutnya antara lain adalah:
1. Studi eksperimental dapat dilakukan dalam rangka verifikasi lebih lanjut hasil kurva hubungan momen-kurvatur yang telah diperoleh dari program analisis non-linier penampang dengan perkuatan jacketing yang telah disusun.
2. Penelitian ini juga dapat dikembangkan lebih lanjut untuk mengetahui perilaku struktur jembatan jika perkuatan jacketing diaplikasikan pada kondisi kinerja elemen mendekati IO dan asumsi kekakuan penampang sebelum aplikasi
jacketing tidak sama.
3. Evaluasi kinerja struktur jembatan dengan perkuatan jacketing dapat juga dibandingkan dengan metode Non-linier Time History Analysis pada software yang memiliki fitur birth and date time untuk aplikasi jacketing, sehingga kinerja struktur dapat tergambar lebih baik.
DAFTAR PUSTAKA
ACI Committee 318 (2014): Building Code Requirements for Structural Concrete
(ACI 318M-14), 519. https://doi.org/10.1016/0262-5075(85)90032-6
ACI Committee 440, dan American Concrete Institute (2008): Guide for the design
and construction of externally bonded FRP systems for strengthening concrete structures, American Concrete Institute, Farmington Hills, Mich.
ACI Committee 562 (2016): ACI 562M-16 Code Requirements for Assessment,
Repair, and Rehabilitation of Existing Concrete Structures (ACI 562M-16) and Comme, American Concrete Institute.
Alhadid, M. M. A., dan Youssef, M. A. (2017): Analysis of reinforced concrete beams strengthened using concrete jackets, Engineering Structures, 132, 172–187. https://doi.org/10.1016/j.engstruct.2016.11.014
ATC-40 (1996): Seismic Evaluation and retrofit of concrete buildings, Applied
Technology council, California, 1 and 2(November 1996), 1996–1996.
https://doi.org/10.1193/1.1586093
Aviram, A., Mackie, K. R., dan Stojadinović, B. (2008): Guidelines for Nonlinear
Analysis of Bridge Structures in California, Pacific Earthquake Engineering
Research Center, book.
Badan Standarisasi Nasional (2016a): SNI 1725-2016: Standar Pembebanan Untuk
Jembatan.
Badan Standarisasi Nasional (2016b): SNI 2833:2016: Perencanaan Jembatan
terhadap Beban Gempa.
Badan Standarisasi Nasional (2017): SNI 2052-2017: Baja Tulangan Beton. Caltrans, S. D. C. (2013): Caltrans seismic design criteria version 1.7.
Campione, G., Fossetti, M., Giacchino, C., dan Minafò, G. (2014): RC columns externally strengthened with RC jackets, Materials and
Structures/Materiaux et Constructions, 47(10), 1715–1728.
https://doi.org/10.1617/s11527-013-0146-x
Chai, Y. H., Priestley, M. J. N., dan Seible, F. (1991): Flexural Retrofit of Circular
Reinforced Concrete Bridge Columns by Steel Jacketing. COLRET - A Computer Program for Strength and Ductility Calculation. Preliminary Report.
Chen, W., dan Duan, L. (2014): Bridge Engineering in Indonesia, 953–953 dalam
Handbook of International Bridge Engineering.
Chopra, A. K., dan Goel, R. K. (2002): A modal pushover analysis procedure for estimating seismic demands for buildings, Earthquake Engineering and
Structural Dynamics, 31(3), 561–582. https://doi.org/10.1002/eqe.144
Dritsos, S. E. (2007): Seismic Strengthening of Columns by Adding New Concrete,
Bulletin of The New Zealand Society for Earthquake Engineering, 40, 20.
Eduardo N. B. S. Julio, F. A. B. B., and Vitor D. Silva (2005): Reinforced Concrete Jacketing - Interface Influence on Monotonic Loading Response, Structural
Journal, 102(2). https://doi.org/10.14359/14276
Eduardo N.B.S. Júlio, Branco, F. A. B., dan Vítor D. Silva (2004): Concrete-to-concrete bond strength- Influence of the roughness of the substrate surface,
Construction and Building Materials, 18, 675–681.
Ersoy, U., Tankut, A. T., dan Suleiman, R. (1993): Behavior of jacketed columns,
ACI Structural Journal, 90(3), 288–293.
FEMA 451B (2006): NEHRP Recommended Provisions for New Building and
Other Structures: Training and Instructional Materials.
FEMA-273 (1997): NEHRP Guidelines for The Seismic Rehabilitation of
Buildings.
FEMA-356 (2000): Prestandard and Commentary for the Seismic Rehabilitation of
Buildings.
FEMA-440 (2005): Improvement of Nonlinear Static Seismic Analysis Procedures. Floren, A., dan Mohammadi, J. (2001): Performance-based design approach in seismic analysis of bridges, Journal of Bridge Engineering, 6(February), 37–45.
Goodnight, J. C., Kowalsky, M. J., dan Nau, J. M. (2016): Modified Plastic-Hinge Method for Circular RC Bridge Columns, Journal of Structural
Engineering, 142(11), 04016103–04016103.
https://doi.org/10.1061/(ASCE)ST.1943-541X.0001570
Hachem, M. M., Mahin, S. A., dan Moehle, J. P. (2003): Performance of Circular
Reinforced Concrete Bridge Columns under Bidirectional Earthquake Loading.
Imran, I., Budiono, B., Adhi, K., Rusdiman, dan Aryanto, A. (2005): Sistem Jembatan Girder Menerus Studi Kasus Pada Perencanaan Jembatan Cisomang, Seminar Nasional Rekayasa Material dan Konstruksi Beton
2005, Jurusan Teknik Sipil Institut Teknologi Nasional Bandung bekerja sama dengan Departemen Teknik Sipil ITB dan PT. Indocement Tunggal Prakasa, Tbk.
Imran, I., dan Zulkifli, E. (2014): Perencanaan Dasar Struktur Beton Bertulang,
Bandung: Penerbit ITB.
Jasa Marga, P. (2017): Laporan Kemajuan Penanganan Jembatan Cisomang:
Pembahasan dengan Tim KKJTJ.
JSCE (1999): Guidlines for Retrofit of Concrete Structures, 1–61.
Lampropoulos, A. P., dan Dritsos, S. E. (2011): Modeling of RC columns strengthened with RC jackets, Earthquake Engineering and Structural
Dynamics, 40(15), 1689–1705. https://doi.org/10.1002/eqe.1109
Lampropoulos, Andreas P., Tsioulou, O. T., dan Dritsos, S. E. (2012): Monolithic Coefficient Values for Design when Seismically Strengthening RC Columns with Jackets, Journal of Earthquake Engineering, 16(7), 1023– 1042. https://doi.org/10.1080/13632469.2012.689120
LAPI ITB, P. (2017a): Laporan Analisis Geoteknik Perkuatan Jembatan Cisomang
Ruas Jalan Tol Purbaleunyi.
LAPI ITB, P. (2017b): Laporan Analisis Struktur Permeriksaan Jembatan
Cisomang Ruas Jalan Tol Purbaleunyi.
Mander, J. B., Priestley, M. J. N., dan Park, R. (1988): Theoretical Stress‐Strain Model for Confined Concrete, Journal of Structural Engineering, 114(8), 1804–1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804) Midas IT (2012): Analysis for Civil Structures.
Minafò, G. (2015): A practical approach for the strength evaluation of RC columns reinforced with RC jackets, Engineering Structures, 85, 162–169. https://doi.org/10.1016/j.engstruct.2014.12.025
NCHRP Synthesis 440 (2013): Performance-Based Seismic Bridge Design, Transportation Research Board, Washington, D.C., 138. https://doi.org/10.17226/22632
Ong, K. C. G., Kog, Y. C., Yu, C. H., dan Sreekanth, A. P. V. (2004): Jacketing of reinforced concrete columns subjected to axial load, Magazine of Concrete
Research, 56(2), 89–98. https://doi.org/10.1680/macr.56.2.89.36292
Park, R., dan Paulay, T. (1975): Reinforced Concrete Structures, 19, 769. https://doi.org/10.1002/9780470172834
Penelis, G. G., dan Kappos, A. J. (1997): Earthquake-Resistant Concrete
Structures, 572.
Priestley, M. J. N., Seible, F., dan Calvi, G. M. (1996): Seismic Design and Retrofit
of Bridges: Priestley/Seismic Design and Retrofit of Bridges, John Wiley &
Sons, Inc., Hoboken, NJ, USA. https://doi.org/10.1002/9780470172858 Richart, F., Brandtzaeg, A., dan Brown, R. L. (1928): A Study of the Failure of
Concrete under Combined Compressive Stresses, University of Illinois
Bulletin, 26, Bullet(12), 1–104.
Thermou, G. E., Papanikolaou, V. K., dan Kappos, A. J. (2014a): Flexural behaviour of reinforced concrete jacketed columns under reversed cyclic loading, Engineering Structures, 76, 270–282. https://doi.org/10.1016/j.engstruct.2014.07.013
Thermou, G. E., Papanikolaou, V. K., dan Kappos, A. J. (2014b): Monolithicity factors for the design of R/C columns strengthened with R/C jackets,
Proceedings of 2nd European conference on earthquake engineering and seismology, Istanbul, paper.
Tsioulou, O. T., dan Dritsos, S. E. (2011): A theoretical model to predict interface slip due to bending, Materials and Structures/Materiaux et Constructions,
44(4), 825–843. https://doi.org/10.1617/s11527-010-9669-6
Vandoros, K. G., dan Dritsos, S. E. (2008): Concrete jacket construction detail effectiveness when strengthening RC columns, Construction and Building
Materials, 22(3), 264–276.
https://doi.org/10.1016/j.conbuildmat.2006.08.019
Wai-Fah, C., dan Lian, D. (2003): Bridge Engineering Seismic Design (C. Wai-Fah dan D. Lian, Ed.).
Zarkasi, I., Irpanni, H., dan Arifien, H. (2018): Penanganan Jembatan Cisomang Ruas Tol Cikampek-Padalarang: Pembelajaran Penanganan Jembatan Akibat Pergerakan Tanah Clay Shale, HPJI, 4(1), 25–36.
Lampiran A Diagram Alir Pemrograman A.1. Diskritisasi Penampang
Section Discretization Unconfined/cover Layers Confined/core Layers Reinforcement Layers
xmin, ymin, xmax,
ymax, nulx, nuly,
nclx, ncly
for i = 1 to nulx or nclx
UnconfinedArea = (ymax-ymin)*(xmax-xmin)/nulx/nuly
ConfinedArea = (ymax-ymin)*(xmax-xmin)/nclx/ncly Concrete Layers Asb, nlx, nly, nx, ny Asbx = nlx*Asb Asby = nly*Asb Reinforcement Layers
xu(j,i) = ((xmax-xmin)/2/nulx+(i-1)*(xmax-xmin)/nulx)+xmin
yu(j,i) = ((ymax-ymin)/2/nuly+(j-1)*(ymax-ymin)/nuly)+ymin
xc(j,i) = ((xmax-xmin)/2/nclx+(i-1)*(xmax-xmin)/nclx)+xmin
yc(j,i) = ((ymax-ymin)/2/ncly+(j-1)*(ymax-ymin)/ncly)+ymin
LRPx = ctol+(j-1)*((B-2*ctol)/(nlx(i,1)-1)), m=m+1
for i = 1 to nx or ny m = 1 for j = 1 to nuly or ncly
for j = 1 to nlx(i,1) or nly(i,1)
ctol = tc + dt +Db/2
LRPy = ctol+(j-1)*((H-2*ctol)/(nly(i,1)-1)), m=m+1
ArmUnconfined = B - xu(j,i), H - yu(j,i)
ArmConfined = B - xc(j,i), H - yc(j,i)
ArmReinforcement = B - LRPx, H - LRPy