DESAIN PERKUATAN STRUKTUR BANGUNAN GEDUNG AKIBAT PERUBAHAN FUNGSI DAN UMUR BANGUNAN MENGGUNAKAN CFRP SHEET

Muttaqin Hasan, Mahlil Mahlil, Azzaki Mubarak

Abstract


: Gedung Kantor Ikatan Guru Aceh pada Kantor Badan Kepegawaian Aceh ingin dirubah fungsinya menjadi Ge-dung Arsip, sehingga beban hidup yang akan bekerja menjadi lebih besar dari beban hidup desain. Disamping itu, gedung tersebut telah berumur 30 tahun, sehingga sudah terjadi degradasi kekuatan sebagian material pemben-tuk strukturnya. Berubahnya standar perencanaan struktur bangunan tahan gempa dari SNI 03-1726-1989 (standar pada saat desain) menjadi SNI 1726:2012 menyebabkan beban gempa yang bekerja pada struktur bangunan tersebut menjadi lebih besar. Oleh karena itu, struktur gedung tersebut perlu diperkuat sehingga mam-pu melayani beban yang bekerja pada saat ini. Untuk maksud ini, maka telah dilakukan pengukuran dimensi ele-men struktur dan pengujian kuat tekan beton pada elemen struktur kolom lantai satu, kolom lantai dua, balok lan-tai, pelat lantai dan ring balok menggunakan hammer test. Jumlah tulangan, arrangement tulangan serta diameter tulangan pada elemen struktur tersebut diukur menggunakan alat profometer. Berdasarkan hasil pengukuran dan pengujian tersebut dilakukan analisis untuk mendapatkan kekuatan tersedia dari balok lantai, pelat lantai, ring balok dan kolom. Berdasarkan beban yang bekerja pada saat ini, juga dilakukan analisis struktur untuk mendapatkan kekuatan perlu dari elemen struktur tersebut. Hasil analisis menunjukkan bahwa struktur bangunan tersebut tidak mampu melayani beban yang bekerja saat ini, sehingga dilakukan perkuatan struktur. Perkuatan struktur didesain dengan cara menggunakan externally wrapping system menggunakan material Carbon Fiber Reinforced Polymer (CFRP) sheet setebal 1,2 mm sebanyak satu lapis. Setelah dilakukan perkuatan struktur, ele-men struktur tersebut sudah cukup kuat melayani beban yang bekerja.

Keywords


perkuatan struktur, CFRP sheet, kekuatan tersedia, kekuatan perlu

Full Text:

PDF

References


. Alghamdi, S.A. dan Ahmad, S, 2018. On Durability of Reinforced Concrete Struc-tures: A Design Methodology for RC Beams and Columns in Corrosive Environments. Arabian Journal for Science and Engineer-ing, Vol. 42, No. 10. Hal: 5387-5396.

. ACI 440.2R-08, 2008. Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures. ACI Committee 440, American Concrete Institute.

. Baros, J.A.O., Dias, S.J.E. dan Lima, J.L.T., 2007. Efficacy of CFRP-based thechniques for flexural and shear strengthening of con-crete beams. Cement and Concrete Compo-sites, Vol. 29, No. 3. Hal: 203-217.

. Belouar, A. Laraba, A., Benzaid, R. dan Chikh, N., 2013. Structural Performance of Square Concrete Columns Wrapped with CFRP Sheets. Procedia Engineering, Vol. 53. Hal: 232-240.

. Bousias, S., Triantafillow, T., Fardis, M., Spathis, L. dan O’Regan, B., 2004. Fiber- Reinforced Polymer Retrofitting of Rectan-gular Reinforced Concrete Columns with or without Corrosion. ACI Structural Journal, Vol. 101, No. 4. Hal: 512-520.

. Chaallal, O dan Shahawy, M., 2000. Per-formance of Fiber-Reinforced Polymer-Wrapped Reinforced Concrete Column un-der Combined Axial-Flexural Loading. ACI Structural Journal, Vol. 97, No. 4. Hal: 659-668.

. Chajes, M., Januska, T., Mertz, D., Thomson, T. dan Finch, W., 1995, Shear Strengthening of Reinforced Concrete Beams Using Exter-nally Applied Composite Frabrics. ACI Structural Journal, Vol. 92, No. 3. Hal: 295-303.

. Chemrouk, 2015. The Deteriorations of Re-inforced Concrete and the Option of High Performances Reinforced Concrete. Proce-dia Engineering, Vol. 125. Hal: 713-724.

. Choi, E., Chung, Y.S., Park, C. dan Kim, D.J., 2013. Seismic Performance of Cilcular RC Columns Retrofitted with Prefabricated Steel Wrapping Jackets. Magazine of Con-crete Research, Vol. 65, No. 23. Hal: 1429-1440.

. Dong, J.F., Wang, Q.Y. dan Guan, Z.W., 2012. Structural Behaviour of RC Beams Externally Strengthened with FRP Sheets under Fatigue and Monotonic Loading. En-gineering Structures, Vol. 41. Hal: 24-33.

. El-Maaddawy, T., Chahrour, A dan Soudki, K., 2006. Effect of Fiber-Reinforced Polymer Wraps on Corrosion Activity and Concrete Cracking in Chloride-Contaminated Concrete Cylinders. Journal of Composites for Construction, Vol. 10., No. 2. Hal: 139-147.

. Elnabelsy, G. dan Saatcioglu, M., 2004. Seismic Retrofit of Cilcular and Square Bridge Columns with CFRP Jackets. Ad-vanced Composite Materials in Bridges and Structures, Calgary, AB, Canada.

. Fakharifar, M., Chen, G.D., Wu, C.L., Shamsabadi, A., ElGawadi, M.A. dan Dal-vand, A., 2016. Rapid Repair of Earth-quake-Damage RC Columns with Pre-stressed Steel Jackets. Journal of Bridges Engineering, Vol. 21, No. 4. Hal: 04015075:1-15.

. Harajli, M. dan Rteil, A., 2004. Effect of Confinement using Fiber-Reinforced Poly-mer of Fiber-Reinforced Concrete on Seis-mic Performance of Gravity Load Design Columns. ACI Structural Journal, Vol. 101, No. 1. Hal: 47-56.

. Harries, K.A. dan Carey, S.A., 2003. Shape and Gap Effects on the Behavior of Variably Confined Concrete, Cement and Concrete Research, Vol. 33, No. 6. Hal: 881-890.

. Iacobucci, R., Sheikh, S. dan Bayrak, O., 2003. Retrofit of Square Concrete Col-umns with Carbon Fiber-Reinforced Poly-mer for Seismic Resistance. ACI Structural Journal, Vol. 100, No. 6. Hal: 785-794.

. Kim, Y.J. dan Hefferman, P.J., 2008. Fatigue Behavior of Externally Strengthened Concrete Beams with Fiber-Reinforced Pol-ymer: State of the Art. J ournal of Compo-sites for Construction, Vol. 12, No. 3. Hal: 246-256.

. Kotynia, R., Baky, H.A., Neale, K.W. dan Ebead, U.A., 2008. Flexural Strength-ening of RC Beams with Externally Bonded CFRP Systems: Test Results and 3D Nonlin-ear FE Analysis. Journal of Composites for Construction, Vol. 12, No. 2. Hal: 190-201.

. Lam, L. dan Teng, J., 2003a. Design-Oriented Stress-Strain Model for FRP-Confined Concrete. Construction and Build-ing Materials, Vol. 17. Hal: 471-489.

. Lam, L. dan Teng, J., 2003b. Design-Oriented Stress-Strain Model for FRP-Confined Concrete in Rectangular Columns. Journal of Reinforced Plastics and Compo-sites, Vol. 22, No. 13. Hal: 1149-1186.

. Li, A., Assih, J. dan Delmas, Y., 2001. Shear Strengthening of RC Beams with Ex-ternally Bonded CFRP Sheets, Journal of Structural Engineering, Vol. 127, No. 4.

. Masoud, S., Soudki, K. dan Topper, T., 2001. CFRP-Strengthened and Corroded RC Beams under Monotonic and Fatigue Loads. Journal of Composites for Construction, Vol. 5. No. 4. Hal: 228-236.

. Memon, M. dan Sheikh, S., 2005. Seis-mic Resistance of Square Concrete Columns Retrofitted with Glass Fiber-Reinforced Polymer. ACI Structural Journal, Vol. 102, No. 5, pp. 774-783.

. Morgan, M., 2005. Carbon Fiber and Their Composites. Boca Raton: Taylor & Francis.

. Norris, T., Saadatmasesh, H. dan Ehsani, M., 1997. Shear and Flexural Strengthening of R/C Beams with Carbon Fiber Sheets, Journal of Structural Engineering, Vol. 123, No. 7. Hal: 903-911.

. Nosho, K.J., 1996. Retrofit of Rectangu-lar Reinforced Concrete Column using Carbon Fiber. MS Thesis, University of Wash-ington, Seattle, WA.

. Pessiki, S., Harries, K.A., Kestner, J., Sause, R. dan Ricles, J.M., 2001, The Axial Behavior of Concrete Confined with Fiber Reinforced Composite Jackets, Journal of Composites in Construction, Vol. 5, No. 4. Hal: 237-245

. Raza, S., Khan, M.K.I., Menegon, S.J., Tsang, H.H. dan, Wilson, J.L., 2019. Strengthening and Repair of Reinforced Concrete Columns by Jacketing: Start-of-the-Art Review. Sustainability, Vol. 11, 3208, Hal: 1-31.

. Saadatmanesh, H., Ehsani, M.R., dan Jin, L., 1996. Seismic Strengthening of Cil-cular Bridge Pier Models with Fiber Com-posites. ACI Structural Journal, Vol. 93, No. 6. Hal: 639-647.

. Shehata, I.A.E.M., Carneiro, L.A.V. dan Shehata, L.C.D., 2002. Strength of Short Concrete Columns Confined with CFRP Sheets. Materials and Structures, Vol. 35. Hal: 50-58.

. Sheikh, S. dan Yau, G, 2002. Seismic Behavior of Concrete Columns Confined with Steel and Fiber-Reinforced Polymers. ACI Structural Journal, Vol. 99, No. 1. Hal: 72-80.

. SNI 03-1726-1989. Pedoman Perencanaan Ketahanan Gempa untuk Rumah dan Gedung. Jakarta: Departemen Pekerjaan Umum.

. SNI 1726:2012. Tata Cara Perencanaan Ketahanan Gempa untuk Struktur Bangunan Gedung dan Non Ge-dung. Jakarta: Badan Standardisasi Nasional.

. SNI 03-1727-1989. Pedoman Perencanaan Pembebanan untuk Rumah dan Gedung. Jakarta: Badan Standardisasi Nasional.

. SNI 1727:2013. Beban Minimum untuk Perancangan Bangunan Gedung dan Struktur Lain. Jakarta: Badan Standardisasi Nasional.

. SNI 2847:2013. Persyaratan Beton Struktural untuk Bangunan Gedung. Jakar-ta: Badan Standardisasi Nasional.

. Teng, J.G., Smith, S.T., Yao, J. dan Chen, J.F., 2001. Intermediate Crack In-duced Debonding in RC Beams and Slabs. Construction and Building Materials, Vol. 17, No. 6-7. Hal: 447-462.

. Teng, J.G., Lu, X.Z., Ye, L.P., dan Jiang, J.J., 2004. Recent Research on Intermediate Crack Induced Debonding in FRP Strength-ening Beams, Proceeding of the 4th Interna-tional Conference on Advanced Composite Materials for Bridges and Structures, Cargaly, AB, Canada.

. Wang, L., Su, R.K.L., Cheng, B., Li, L.Z. dan Shan, Z.W., 2017., Seismic Behavior of Preloaded Rectangular RC Columns Strengthened with Precambered Steel Plates under High Axial Load Ratios, Engineering Structures, Vol. 152. Hal: 683-697.




DOI: https://doi.org/10.24815/jts.v9i1.15945

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.