USE OF TIMBER IN BRIDGE DESIGN AND MODELLING FOR RURAL DEVELOPMENT
Abstract
This project involves mainly the structural, environmental and economic analysis of a timber bridge which will be meant to link up rural communities to their farm lands and centres of productive trades. It aims to prove that modern day construction techniques that can be carried out using timber material. Focusing on a hypothetical 25m timber arch bridge, structural models were created using MIDAS CIVIL 2018 in accordance with the American Association of State Highway Officials (AASHTO ,1973) and Standard Specifications for Structural Glued Laminated Timber of Softwood Species (AITC 117-2004) to determine appropriate section sizes and glued laminated timber sections for a functional design and analysis. Areas such as member size selection, checks for shears, moment. axial forces on the deck and beam where carried out, tension analysis on hangers were carried out to determine the most critical section for design. The effects of moving loads was also considered adopting standard AASHTO HS 20-44 vehicles and its associated influence on the bridge lanes or deck was carried out. Finally results of such analysis on the entire bridge were extracted such as the effects of dead load, moving loads and load combinations. Methods for performing economic and environmental analyses were then proposed using embodied energy system and life cycle assessments system. Timber is expected to be able to produce a more cheaper outcome than steel or concrete.
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KEYWORDS: Bridge, Embodied Energy, Life cycle assessment, Midas Civil
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Anand, N. and Arulraj G.P. (2014). “Experimental Investigation on Mechanical Properties of Self Compacting Concrete under Elevated Temperaturesâ€, International Journal of Advances in Science Engineering and Technology, ISSN: 2321-9009 Volume- 2, Issue-4.
Assaad, J., Khayat, K. and Mesbah, H. (2003). Assessment of the Thixotropy of Flowable and Self- Consolidating Concrete. ACI Materials Journal, 100(2), pp. 99-107.
Bature, A., Khorami, M. and Lawan, A. (2020). Effects of ground granulated blast furnace slag and pulverized fuel ash on rheology of concrete. Nigerian Journal of Technology, 39(1), pp.97-104.
Bingham, E.C. (1922). Fluidity and Plasticity. McGraw-Hill Book Company Incorporated: New York, NY, USA.
Brooks, J., Johari, M.A.M. and Mazloom, M. (2000). Effect of admixtures on the setting times of high-strength concrete. Cem Concr Compos 2000; 22:293–301.
Brouwers, H. J. H. and Radix, H. J. (2005). Self-Compacting Concrete: Theoretical and experimental study. Cement and Concrete Research, 35 (11), pp. 2116–2136.
Carlsward, C., and Emborg, M. (2007). Shrinkage cracking of steel fiber reinforced self-compacting concrete overlays – tests methods and theoretical modelling. In G. De Schutter and V. Boel, eds., Proc. SCC2007, 5th International RILEM Symposium on Self-Compacting Concrete, Gent, Belgium, Rilem Pubs, pp. 793-798.
Carlsward, J., Emborg, M., Utsi, S. and Oberg, P. (2003). Effects of constituents on the workability and rheology of self-compacting concrete, The 3rd International RILEM Symposium on Self-Compacting Concrete, RILEM Publications S.A.R.L, Bagneux, France, pp. 143-153.
Castro, A.D. and Liborio, J. (2006). Initial rheological description of high performance concretes. Materials Research, 9 (4), pp. 405-410.
Chan, K.D. Ong, K.C.G and Tan, C.T. (2010). Passing ability of SCC- Improved method based on the J-ring. In 35th Conference on our world in concrete and structures, Singapore.
Cussigh, F. (1999). Self-compacting concrete stability, Proceedings of First RILEM International Symposium on Self Compacting Concrete. Stockholm, Ã…. Skarendahl 13-15 September
De Schutter, G., Bartos, P., Domone, P. and Gibbs, J. (2008). Self-Compacting Concrete; Whittles Publishing: Scotland, UK.
Deeb, R. and Karihaloo, B.L. (2013). Mix proportioning of self-compacting normal and high strength concretes, Magazine of Concrete Research, 65(9), pp.546–556.
Domone, P. L. (2006). Self-compacting concrete: An analysis of 11 years of case studies. Cement and Concrete Composites, 28(2), pp. 197–208.
EN 12350-1 Testing fresh concrete: Part 1: Sampling.
EN 12350-2 Testing fresh concrete: Part 2: Slump test.
ErdoÄŸan, S.T., Martys, N.S., Ferraris, C.F. and Fowler, D.W. (2008). Influence of the Shape and Roughness of Inclusions on the Rheological Properties of a Cementitious Suspension. Cement and Concrete Composites 30 (5), 393- 402.
Flatt, R.J. (2004). Towards a prediction of super-plasticized concrete rheology. Mater. Struct. 27, 289–300.
Ganeshan, M. and Venkataraman, S. (2020). Interface shear strength evaluation of self-compacting geopolymer concrete using push-off test. Journal of King Saud University - Engineering Sciences.
Hamed, S.B. and Belhadri, M. (2009). Rheological properties of biopolymers drilling fluids. J. Petrol. Sci. Eng. 67, 84–90.
Hooton, R. and Shihata, S. (2000). Strength and Density of Laboratory-Prepared RCC Specimens: Effect of Compaction Procedure. Cement, Concrete and Aggregates, 22(1), p.1.
Karihaloo, B.L. and Ghanbari, A. (2012). Mix proportioning of Self-Compacting High and Ultra-high Performance concretes with and without steel fibres. Magazine of Concrete Research, 64(12), pp.1089- 1100.
Karthik, S., Rao, P. and Awoyera, P. (2017). Strength properties of bamboo and steel reinforced concrete containing manufactured sand and mineral admixtures. Journal of King Saud University - Engineering Sciences, 29(4), pp.400-406.
Khayat, K.H. (1999). Workability, testing, and performance of self-consolidating concrete. ACI Mater. J. 96, 346–353. 7.
Laskar, A.I. and Talukdar, S. (2008). Rheological Behavior of High Performance Concrete with Mineral Admixtures and their Blending. Construction and Building Materials 22 (12), 2345-2354.
Lee, S.H., Kim, H.J., Sakai, E. and Daimon, M. (2003). Effect of particle size distribution of fly ash cement system on the fluidity of cement pastes. Cement and Concrete Research, 33(5), 763-768.
Leemann, A., Lura, P. and Loser, R. (2011). Shrinkage and creep of SCC – The influence of paste volume and binder composition. Construction and Building Materials, 25(5), pp.2283-2289.
Åukowski, P. and Salih, A. (2015) Durability of Mortars Containing Ground Granulated Blast Furnace Slag in Acid and Sulphate Environment. Procedia Engineering 108, 47-54.
Mehdizadeh, H. and Kani, E.N. (2018). Rheology and apparent activation energy of alkali activated phosphorous slag. Constr. Build Mater 171: 197-204.
Ng, S. and Justnes, H. (2016). Influence of plasticizers on the rheology and early heat of hydration of blended cements with high content of fly ash. Cement and Concrete Composites, 65, pp.41-54.
Okamura, H. and Ouchi, M. (2003). Self-Compacting Concrete. Journal of Advanced Concrete Technology, 1(1), pp.5-15.
Okamura, H., Ouchi, M., Hibino, M. and Ozawa, K., (1998). A rational mix-design method for mortar in self- compacting concrete. In the 6th East Asia-Pacific Conference on Structural Engineering and Construction, Taipei, ROC, 2, pp. 1307-1312.
Roussel, N., (2007). Rheology of fresh concrete: from measurements to predictions of casting processes. Materials and Structures, 40(10):1001-1012
Saidi, T. and Hasan, M. (2020). The effect of partial replacement of cement with diatomaceous earth (DE) on the compressive strength and absorption of mortar. Journal of King Saud University - Engineering Sciences.
Siddique, R. and Khan, M.I. (2011). Supplementary Cementing Materials: Silica Fume. Engineering Materials, Ch:2. Springer-Verlag Berlin Heidelberg, pp. 67-119. ISBN: 978-3- 642-17865-8.
Uysal, M. and Sumer, M. (2011). Performance of self-compacting concrete containing different mineral admixtures. Construction and Building Materials, 25(11):4112–4120
Vejmelková, E., Keppert, M., Grzeszczyk, S., Skaliński, B. and Černý, R. (2011). Properties of self-compacting concrete mixtures containing metakaolin and blast furnace slag. Construction and Building Materials, 25(3):1325-1331.
Wallevik, O.H. (2007). Course on the Rheology of Cement Based Particle Suspensions; BBRI: Copenhagen, Denmark.
Warner, J. (2005). Preplaced-aggregate concrete. Concr. Int. 27, 34–38.
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