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IRJET- Comparative Study of Effect of Varying Span Length on Major Elements of Metro Bridge
1.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2104 COMPARATIVE STUDY OF EFFECT OF VARYING SPAN LENGTH ON MAJOR ELEMENTS OF METRO BRIDGE NILESH SHADUNKEY, ASSO PROF. RASHMI SAKALLE 1M.Tech. Student, Deptt of Structural Engineer, Truba Institute of Engineering and Information Technology Rgpv University Bhopal, (M.P), INDIA 2Associate Professor, Department of Civil and Applications Truba Institute of Engineering and Information Technology, Bhopal, (M.P) INDIA ------------------------------------------------------------------------***------------------------------------------------------------------------- 1. ABSTRACT: A metro system is a railway transport system in an urban area with a high capacity, frequency and the grade separation from other traffic. Metro System is used in cities, agglomerations, and metropolitan areas to transport large numbers of people. An elevated metro system is more preferred type of metro system due to ease of construction and also it makes urban areas more accessible without any construction difficulty. An elevated metro system has two major elements pier and girder. In this study we have focused on two curve models of total span of 100 meter. The main focus in this comparative study is to find a suitable design for the metro system because for varying design systems we will face construction issues as well as traffic planning issues. Models of different span of 40 and 70 meter is analysed here just to find out a significant span so that we can generalize the complete metro design from a single analysis it will help us in both construction of metro rail and road traffic planning as well Keywords: Metro Structure, Bridge Pier, Girder Bridge, Seismic Design, Pier Design, Curved Model 2. INTRODUCTION A metro system is an electric passenger railway transport system in an urban area with a high capacity, frequency and the grade separation from other traffic. Metro System is used in cities, agglomerations, and metropolitan areas to transport large numbers of people at high frequency. The grade separation allows the metro to move freely, with fewer interruptions and at higher overall speeds. Metro systems are typically located in underground tunnels, elevated viaducts above street level or grade separated at ground level. An elevated metro structural system is more preferred one due to ease of construction and also it makes urban areas more accessible without any construction difficulty. An elevated metro structural system has the advantage that it is more economic than an underground metro system and the construction time is much shorter. An elevated metro system has two major components pier and girder. A typical elevated metro bridge model. Viaduct or girder of a metro bridge requires pier to support the each span of the bridge and station structures. Piers are constructed in various cross sectional shapes like cylindrical, elliptical, square, rectangular and other forms. The piers considered for the present study are in rectangular cross section and it is located under station structure. A typical girders and pier considered for the present study. In the present study we are compare the two models and analysed their results for future planning. Figure 1 Curved Bridge Model
2.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2105 GENRAL CRITERIA: Genral criteria used for the design purpose is given below: CAPACITY DMC: Driving Trailer Car MC: Motor Car Tc: Trailer Car 6 Car Train Composition: DMC + TC + MC + MC + TC + DMC DMC: 247 Passenger (Sitting-43, Crush Standing-204) TC/MC: 270 Passeneger (Sitting–50, Crush Standing-220) 6 Car Train: 1574 Passenger (Sitting-286, Crush Standing-1288) IS CODE USING: IS 1893 IS 875-I IS 875-II IS 456:2000 IRC Boggie Load IS 13920 BRIDGE DETAILS: Total Length of bridge : 100 m Length of End Span : 15 m (in model 1) & 30 m (in model 2) Length of mid span : 70 m ( in model 1) & 40 m (in model 2) Bridge design for : 20 T /m Overall design for loading : 200 T Bridge Design for Maximum Speed : 95 kmph Width of gauge / carriageway = 1435 mm Fig 2- Forces On Curve Model 3. LITERATURE REVIEW Kuppumanikandan A (2013), parametic studies on major element of an elevated metro bridge, Department of Structural engineering, Nit Rourkela
3.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2106 Kees Vanamölder (MAY,2017) conducted study in order to evaluate possible structural solutions for bridges in practical case, case-study was performed on the basis of designed Rail Baltic bridge over Pärnu river. Rail Baltic is designed as new railway line between Tallinn and Poland that would connect Baltic states with European railway network with 1435 mm track gauge. Rail Baltic is double-track electrified railway line for mixed traffic with design speed of 240 km/h and with overall length around 700 km. In Estonia overall length of railway route is around 210 km and railway alignment follows Tallinn (Muuga/Ülemiste), Rapla, Pärnu and Ikla. The conclusion was made that since LCC of arch, network arch and truss bridges occurred to be similar, these structural forms can be considered as the most suitable for span 170 m from the financial point of view. LCC of suspension and cable-stayed bridges are approximately 2-3 times 4. OBJECTIVE The aim of the study is to find a suitable design at a location where total span length is 100 m and Radius of Curvature is 150 m and the traffic design as well as other construction issues is based on the Mid Span of Bridge. The main focus in this comparative study is to find a suitable design for the metro system as well as traffic planning issues at that location .So the Models of two different mid span of 40 and 70 metre is analysed here just to find out a significant span so that we can generalize the metro design as well as traffic planning from a single analysis it will help us in both construction of metro rail and road traffic planning at that location. In this comparative study, two curved models of radius 150 m have been considered of total span 100 m. In the first model, the mid span between piers is 70 m & side span is 15 m each. In the second model, the mid span between piers is 40m & side span is 30 m each. The objective is to give a thought regarding the examination and plan of metro Bridge. Here the model is being outlined according to IRC70R stacking and all the necessary loads they used In metro Bridge which is appropriate on all streets on which the changeless extensions and ducts can be built. Investigation and Design process by Staad Pro decides the execution of structures. In this we can genralised the significant span between two curve model length 40m and 70m this study case is also use full for future uses for this type of case.. 5. METHEDOLOGY A girder bridge, in general, is a bridge that uses girders as the means of supporting the deck. A bridge consists of three parts: the foundation (abutments and piers), the superstructure (girder, truss, or arch), and the deck. A girder bridge is very likely the most commonly built and utilized bridge in the world. Its basic design, in the most simplified form, can be compared to a log ranging from one side to the other across a river or creek. In modern girder stee bridges, the two most common shapes are plate girders and box girders. The term "girder" is often used interchangeably with "beam" in reference to bridge design. STAAD. Pro. in space is Operated with units Metre and Kilo Newton. The geometry is drawn and the section properties are assigned. Fixed Supports are taken. Quadrilateral meshing is done followed by assigning of plate thickness.3D rendering can be viewed for the geometry. Loads are defined by the loads and definitions. By Post Processing mode, Noda displacement, Max. Absolute Stress distribution for the bridge can be viewed. Run analysis is operated. Max. Response by the IRC Class 70R loading is done by STAAD.beava. The deck is created in bridge deck processor, this being the first step of STAAD.beava. In STAAD.beava, roadways, curbs, vehicular parameters are provided. Lastly transfer of load is done into STAAD Pro. For further analysis and design. Al the Max response criteria are checked Mx,My,Mz stresses etc for different members elements. The load positions and reactions, beam forces and moments, etc. are determined. The concrete is designed as per IS Code. 5.1. METHOD USED FOR ANALAYSIS The Finite Element Method is used for analysis Beam and Coloum Design and the steps used for analysis they are following as: Step-1 Calculation Loads Wu = F.O.S x W Where, Wu = Factored Load W = Total Load
4.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2107 Step 2 Calculation Maximum Bending Moment Mu = Wu x Leff^2 Where, Mu = Maximum Bending Moment Step 3 Calculation Effective Depth Deff = √Mu/Ru x b Where, Ru = Grade Of Steel = 0.133fck Step 4 -Calculation Area Of Steel (Ast) Area of tension reinforcement (Ast1) for a singly reinforced section at mid span and at support is calculated from Annex G-1.1(b) of IS 456:2000 If section is over reinforced then area of compression reinforcement (Asc) and additional tensile reinforcement ( Ast2) is calculated from Annex G-1.2 of IS 456:2000 Step 5 - Calculate Shear Reinforcement Nominal shear stress in beams is calculated from clause 40.1 of IS 456:2000[9]. Step 6-Calculate Minimum percentage of steel Ptmin ( % )= 100 x Ast/ bd Step 7- Calculate spacing Spacing in beam is calculated from clause 26.5.1.5, and 26.5.1.6 of IS 456:2000[9]. Step 8- check for deflection Fsc =( 0.58fy x Ast Req) / Ast Provided 6. RESULT & DISCUSSION Parametric Study on Girder Bridge and pierslusingl finitel elementl methodl and compare the Result of Both Models are describedl inl thisl chapter.l s Twol differentl modelsl ofl totall spanl 100ml butl varyingl pierl spansl isl consideredl here.l Thel firstl modell hasl 40ml ofl midl spanl andl 30l ml ofl sidel spans.l Thel secondl modell hasl 70ml ofl midl spanl andl 15l ml ofl sidel spans.l Figurel asl shownl below:
5.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2108 Figure 3 Top View (Mid span 40m) Figure 4 Front View (Mid span 40m) Figure 5 Top View (Mid span 70m)
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2109 Figure 6Front View (Mid span 70m) 6.1.1. SUPPORT REACTIONS COMPARISON Figure 7 SUPPORT REACTIONS (Fx) fig 8 SUPPORT REACTIONS (Fy) Fig 9 SUPPORT REACTIONS (Fz)
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2110 Fig 10 SUPPORT REACTIONS (Mx) Fig 11 SUPPORT REACTIONS (My) Fig 12 SUPPORT REACTIONS (Mz) Tablel 6.1SUPPORT REACTIONS (Fx)l ofl Midl Spanl 40m Node L/C Fx kN Max Fx 2 1.5X(DEAD+LIVE) 620.056 Min Fx 1 EQ+X -423.889 Max Fx 2 1.2X(DEAD+LIVE-SEISMIC ) 506.449 Min Fx 3 1.2X(DEAD+LIVE+SEISMIC ) -715.684 Max Fx 4 1.2X(DEAD+LIVE+SEISMIC ) -739.322 Min Fx 1 1.2X(DEAD+LIVE-SEISMIC ) 39.853 Max Fx 2 IRC: SLS Class 70R+A Loading -1301.55 Min Fx 3 IRC: SLS Class 70R+A Loading 1015.397
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2111 Tablel 6.2l SUPPORT REACTIONS (Fx)l ofl Midl Spanl 70m Node L/C Fx kN Max Fx 2 1.5X(DEAD+LIVE) 5752.268 Min Fx 1 EQ+X -589.432 Max Fx 2 1.2X(DEAD+LIVE-SEISMIC ) -3023.021 Min Fx 3 1.2X(DEAD+LIVE+SEISMIC ) 3840.142 Max Fx 4 1.2X(DEAD+LIVE-SEISMIC ) -3023.021 Min Fx 1 1.2X(DEAD+LIVE-SEISMIC ) 3840.142 Max Fx 2 IRC: SLS Class 70R+A Loading 506.449 Min Fx 3 IRC: SLS Class 70R+A Loading -595.961 NOTE: In The Above Comparation we compare the support reaction between 40m span model and 70m span model in horizontal reaction (Fx). We found that 40 m span model reaction (Fx) is very low compare to 70 m span so we suggested that 40 m span model is suitable for the used. Tablel 6.3 SUPPORT REACTIONS (Fy) ofl Midl Spanl 40m Node L/C Fy kN Max Fy 2 1.5X(DEAD+LIVE) 34172.23 Min Fy 1 EQ+X -92.432 Max Fy 2 1.2X(DEAD+LIVE-SEISMIC ) 27303.67 Min Fy 3 1.2X(DEAD+LIVE+SEISMIC ) 27256.1 Max Fy 4 1.2X(DEAD+LIVE+SEISMIC ) 10337.28 Min Fy 1 1.2X(DEAD+LIVE-SEISMIC ) 10258.35 Max Fy 2 IRC: SLS Class 70R+A Loading 28323.32 Min Fy 3 IRC: SLS Class 70R+A Loading 22009.85 Tablel 6.4l SUPPORT REACTIONS (Fy) ofl Midl Spanl 70m Node L/C Fy kN Max Fy 2 1.5X(DEAD+LIVE) 49368.23 Min Fy 1 EQ+X -982.638 Max Fy 2 1.2X(DEAD+LIVE-SEISMIC ) 39557.61 Min Fy 3 1.2X(DEAD+LIVE+SEISMIC ) -3840.142 Max Fy 4 1.2X(DEAD+LIVE+SEISMIC ) -27307.67 Min Fy 1 1.2X(DEAD+LIVE-SEISMIC ) 22009.85 Max Fy 2 IRC: SLS Class 70R+A Loading 5752.268 Min Fy 3 IRC: SLS Class 70R+A Loading -2966.97 NOTE: In The Above Comparation we compare the support reaction between 40m span model and 70m span model in horizontal reaction (Fy). We found that 40 m span model reaction (Fy) is very low compare to 70 m span so we suggested that 40 m span model is suitable for the used.
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2112 Tablel 6.5l l SUPPORT REACTIONS (Fz) ofl Midl Spanl 40m Node L/C Fz kN Max Fz 2 1.5X(DEAD+LIVE) 2205.981 Min Fz 1 EQ+X -86.118 Max Fz 2 1.2X(DEAD+LIVE-SEISMIC ) 2321.834 Min Fz 3 1.2X(DEAD+LIVE+SEISMIC ) -2311.3 Max Fz 4 1.2X(DEAD+LIVE+SEISMIC ) -1162.81 Min Fz 1 1.2X(DEAD+LIVE-SEISMIC ) 1081.854 Max Fz 2 IRC: SLS Class 70R+A Loading 2341.54 Min Fz 3 IRC: SLS Class 70R+A Loading -2148.34 Tablel 6.6 SUPPORT REACTIONS (Fz) ofl Midl Spanl 70m Node L/C Fz kN Max Fz 2 1.5X(DEAD+LIVE) 11818.081 Min Fz 1 EQ+X -407.474 Max Fz 2 1.2X(DEAD+LIVE-SEISMIC ) -10083.814 Min Fz 3 1.2X(DEAD+LIVE+SEISMIC ) -9361.517 Max Fz 4 1.2X(DEAD+LIVE+SEISMIC ) -10083.814 Min Fz 1 1.2X(DEAD+LIVE-SEISMIC ) 2321.834 Max Fz 2 IRC: SLS Class 70R+A Loading 12798.544 Min Fz 3 IRC: SLS Class 70R+A Loading -7335.729 NOTE: In The Above Comparation we compare the support reaction between 40m span model and 70m span model in horizontal reaction (Fz). We found that 40 m span model reaction (Fz) is very low compare to 70 m span so we suggested that 40 m span model is suitable for the used. Tablel 6.7lSUPPORT REACTIONSl (Mx) ofl Midl Spanl 40m Node L/C Mx kN Max Mx 2 1.5X(DEAD+LIVE) 12271.43 Min Mx 1 EQ+X -268.179 Max Mx 2 1.2X(DEAD+LIVE-SEISMIC ) 15830.98 Min Mx 3 1.2X(DEAD+LIVE+SEISMIC ) -12476.9 Max Mx 4 1.2X(DEAD+LIVE+SEISMIC ) 5562.437 Min Mx 1 1.2X(DEAD+LIVE-SEISMIC ) -2979.86 Max Mx 2 IRC: SLS Class 70R+A Loading 7260.81 Min Mx 3 IRC: SLS Class 70R+A Loading -3653 Tablel 6.8l SUPPORT REACTIONS SUMMARYl (Mx) ofl Midl Spanl 70m Node L/C Mx kN Max Mx 2 1.5X(DEAD+LIVE) 56243.6913 Min Mx 1 EQ+X -3483.057 Max Mx 2 1.2X(DEAD+LIVE-SEISMIC ) 56243.691 Min Mx 3 1.2X(DEAD+LIVE+SEISMIC ) 45027.945 Max Mx 4 1.2X(DEAD+LIVE+SEISMIC ) 36547.637 Min Mx 1 1.2X(DEAD+LIVE-SEISMIC ) -15840.98 Max Mx 2 IRC: SLS Class 70R+A Loading 48209.133 Min Mx 3 IRC: SLS Class 70R+A Loading -36483.057
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2113 NOTE: In The Above Comparation we compare the support reaction between 40m span model and 70m span model in horizontal reaction (Mx). We found that 40 m span model reaction (Mx) is very low compare to 70 m span so we suggested that 40 m span model is suitable for the used. Tablel 6.9lSUPPORT REACTIONSl (My) ofl Midl Spanl 40m Node L/C My kN Max My 2 1.5X(DEAD+LIVE) 384.358 Min My 1 EQ+X -202.03 Max My 2 1.2X(DEAD+LIVE-SEISMIC ) 288.172 Min My 3 1.2X(DEAD+LIVE+SEISMIC ) --172.547 Max My 4 1.2X(DEAD+LIVE+SEISMIC ) 583.653 Min My 1 1.2X(DEAD+LIVE-SEISMIC ) -578.359 Max My 2 IRC: SLS Class 70R+A Loading 506.449 Min My 3 IRC: SLS Class 70R+A Loading -595.961 Tablel 6.10l SUPPORT REACTIONS (My) l ofl Midl Spanl 70m Node L/C My kN Max My 2 1.5X(DEAD+LIVE) -3228.809 Min My 1 EQ+X -707.364 Max My 2 1.2X(DEAD+LIVE-SEISMIC ) 3248.856 Min My 3 1.2X(DEAD+LIVE+SEISMIC ) -3239.552 Max My 4 1.2X(DEAD+LIVE+SEISMIC ) 3243.753 Min My 1 1.2X(DEAD+LIVE-SEISMIC ) -3248.856 Max My 2 IRC: SLS Class 70R+A Loading 5056.449 Min My 3 IRC: SLS Class 70R+A Loading -4595.961 NOTE: In The Above Comparation we compare the support reaction between 40m span model and 70m span model in horizontal reaction (My). We found that 40 m span model reaction (My) is very low compare to 70 m span so we suggested that 40 m span model is suitable for the used. Tablel 6.11l SUPPORT REACTIONS (Mz) l ofl Midl Spanl 40m Node L/C Mz kN Max Mz 2 1.5X(DEAD+LIVE) 2823.933 Min Mz 1 EQ+X -5658.78 Max Mz 2 1.2X(DEAD+LIVE-SEISMIC ) 3223.773 Min Mz 3 1.2X(DEAD+LIVE+SEISMIC ) -7175.684 Max Mz 4 1.2X(DEAD+LIVE+SEISMIC ) 10453.57 Min Mz 1 1.2X(DEAD+LIVE-SEISMIC ) -7313.98 Max Mz 2 IRC: SLS Class 70R+A Loading 9676.76 Min Mz 3 IRC: SLS Class 70R+A Loading -6434.65 Tablel 6.12l SUPPORT REACTIONS (Mz) ofl Midl Spanl 70m Node L/C Mz kN Max Mz 2 1.5X(DEAD+LIVE) 7174.72 Min Mz 1 EQ+X -5102.659
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2114 Max Mz 2 1.2X(DEAD+LIVE-SEISMIC ) 33486.26 Min Mz 3 1.2X(DEAD+LIVE+SEISMIC ) -4585.659 Max Mz 4 1.2X(DEAD+LIVE+SEISMIC ) 3223.77 Min Mz 1 1.2X(DEAD+LIVE-SEISMIC ) -5030.74 Max Mz 2 IRC: SLS Class 70R+A Loading 5666.449 Min Mz 3 IRC: SLS Class 70R+A Loading -5435.961 NOTE: In The Above Comparation we compare the support reaction between 40m span model and 70m span model in horizontal reaction (Mz). We found that 40 m span model reaction (Mz) is very low compare to 70 m span so we suggested that 40 m span model is suitable for the used. 6.1.2 BEAM MAXIMUM STRESSES Fig 13-Beam Stresses Tablel 6.13l Maxl Beaml Forces Summaryl ofl Midl Spanl 70m Beam L/C Node Fx kN Fy kN Fz Kn Mx kNm My kNm Mz kNm 2 1.5X(DEAD+LIVE) 2 49368.23 -5752.268 -11818.081 -3228.809 -56243.691 7174.707 1 1.5X(DEAD+LIVE) 7 -4067.22 2067.563 1413.352 -2673.605 -8137.466 13479.12 47 1.2X(DEAD+LIVE+SEI SMIC ) 28 380.371 12102.34 6 -137.213 1657.892 190.19 27759.94 20 1.2X(DEAD+LIVE- SEISMIC ) 12 2218.485 -6616.18 6.231 2920.781 66.232 89864.06 3 IRC: SLS Class 70R+A 28 43510.58 2966.097 12798.544 3243.753 -1.44E+05 14670.84
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2115 Loading 2 IRC: SLS Class 70R+A Loading 12 43513.06 -5752.268 -11818.081 -3228.809 1.21E+05 -79109.3 Tablel6.14l Beaml ForceslSummary ofl Midl Spanl 40m Beam L/C Node Fx kN Fy kN Fz kN Mx kNm My kNm Mz kNm 2 1.5X(DEAD+LIVE) 2 34172.23 -620.056 -2205.98 -322.826 -12271.4 -2823.93 52 1.5X(DEAD+SEISMIC) 36 -449.732 1420.408 -0.47 296.647 -1.808 10347.93 50 1.2X(DEAD+LIVE+SEISMIC) 30 18.839 8027.5 -17.295 363.479 23.552 19855.61 44 1.2X(DEAD+LIVE-SEISMIC) 30 8.969 -4572.41 13.185 -128.996 16.941 14288.58 22 IRC: SLS Class 70R+A Loading 18 76.489 2475.063 0.341 1961.127 -5.634 22888.09 55 IRC: SLS Class 70R+A Loading 35 76.615 -1473.29 -0.358 -1961.36 -0.35 -6943.67 NOTE: In The Above Comparation we compare the support maximum stresses on Beam between 40m span model and 70m span model). We found that 40 m span models Beam stresses is very low compare to 70 m span so we suggested that 40 m span model is suitable for the used Figure 14 Plate Stresses MidlSpan 40m
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2116 6.1.3 PLATE MAXIMUM STRESSES Figure15 Plate Stresses Mid Span 70m 6.1.4 PLATES MAXIMUM STRESSES Tablel 4.15l Plate Stressess Summaryl ofl Midl Spanl 70m Shear Membrane Bending Moment Plate L/C SQX (local) N/mm2 SQY (local) N/mm2 SX (local) N/mm2 SY (local) N/mm2 SXY (local) N/mm2 Mx kNm/m My kNm/m Mxy kNm/m 60 1.5X(DEAD+LIVE) -1.317 -1.639 0.155 -0.72 0.326 536.328 132.724 93.064 68 EQ+X 0.007 -0.001 0.033 0.06 -0.121 -0.628 -0.095 0.394 65 1.2X(DEAD+LIVE +SEISMIC) 0.125 0.01 0.024 0.574 -0.02 68.046 -52.637 9.487 60 1.5X(DEAD+LIVE) -1.317 -1.639 0.155 -0.72 0.326 536.328 132.724 93.064 68 IRC: SLS Class 70R+A Loading -1.56 1.413 0.204 -0.772 0.001 271.833 76.935 -45.482 55 IRC: SLS Class 70R+A Loading -0.235 0.316 -0.417 0.467 0.526 340.567 70.769 -16.263 Tablel 4.16l Plate Stressess Summaryl ofl Midl Spanl 40m Shear Membran e Bending Moment Plate L/C SQX (local) N/mm2 SQY (local) N/mm2 SX (local) N/mm2 SY (local) N/mm2 SXY (local) N/mm2 Mx kNm/m My kNm/m Mxy kNm/ m 72 1.5X(DEAD+LI VE) 0.849 -0.518 -0.056 -0.389 0.239 210.018 35.271 19.032 73 1 EQ+X -0.001 -0.001 -0.001 0.053 0.047 -0.67 0.106 0.031 85 1.2X(DEAD+LI VE+SEISMIC) -0.242 0.111 0.054 -0.098 -0.081 145.676 19.405 -0.94 75 1.5X(DEAD+LI VE) 0.267 0.273 -0.005 -0.584 -0.084 59.5 -0.135 -9.789 73 IRC: SLS Class 70R+A Loading -0.471 -0.69 0.018 -0.246 0.031 364.26 59.457 21.934
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2117 81 IRC: SLS Class 70R+A Loading -0.313 -0.37 -0.023 -0.043 0.008 330.011 63.13 -6.191 NOTE: In The Above Comparation we compare the Plate Maximum stress between 40m span model and 70m span model. We found that 40 m span model plae stresses result is very low compare to 70 m span so we suggested that 40 m span model is suitable for the used. 6.1.5 NODES MAXIMUM DISPLACEMENT Tablel 4.17l Node Displacement Summaryl ofl Midl Spanl 70m Horizontal Vertical Horizontal Resultant Rotational Node L/C X mm Y mm Z mm mm rX rad rY rad rZ rad 15 EQ+X 2.891 1.095 -0.922 3.226 0 0 0 24 1.5X(DEAD+LIVE) 17.599 -822.939 -5.738 823.147 -0.035 0 -0.037 22 1.2X(DEAD+LIVE+SEISMIC) 4.326 -24.306 6.174 25.448 0.007 0 0.006 29 1.5X(DEAD+LIVE) 9.096 -143.095 -2.511 143.406 -0.003 0 -0.034 5 IRC: SLS Class 70R+A Loading 11.414 -100.528 0.978 101.178 0.021 0 0.014 22 IRC: SLS Class 70R+A Loading 17.599 -822.939 -5.738 823.147 -0.035 0 -0.037 Tablel 4.18l Node Displacement Summaryl ofl Midl Spanl 40m Horizontal Vertical Horizontal Resultant Rotational Node L/C X mm Y mm Z mm mm rX rad rY rad rZ rad 20 EQ+X 5.912 2.535 -1.099 6.526 0 0 0 20 1.5X(DEAD+LIVE) 8.369 -205.391 -2.955 205.583 -0.006 0 -0.018 23 1.2X(DEAD+LIVE+SEISMIC) 9.279 -40.567 -1.094 41.629 -0.005 0 -0.01 28 1.5X(DEAD+LIVE) 7.2 -78.075 -3.324 78.477 0.001 0 0.018 5 IRC: SLS Class 70R+A Loading 7.692 -78.071 -1.934 78.473 0.011 0 0.015 23 IRC: SLS Class 70R+A Loading 7.333 -104.017 -2.613 104.308 -0.008 0 -0.022 NOTE: In The Above Comparation we compare the Nodes maximum Displacement on 40m span model and 70m span model). We found that 40 m span models Nodes maximum Displacement is very low compare to 70 m span so we suggested that 40 m span model is suitable for the used
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International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2118 6.2 CONCLUSIONS In this comparative study we are analyzing curve girder bridge of Total span length is 100 m in which mid span 70m(model 1 ) and 40 m(model 2) with end span of 15 m(model 1) and 30 m(model 2) respectively and in which we are concluded that since the 40 m span curve bridge stability is more and it is cost effective in comparation with 70 m span curve girder Bridge now following comparative analysis has been shown below. COMPARE TOTAL REINFORCEMENTOF BEAMS IN 40 M & 70 M SPAN MODEL SPAN REINFORCEMENT RATIO 40 1080.00 QTL 0.663 70 1629.32 QTL Here it is observed that the variation in Total Reinforcement of Beams in 40 m & 70 m span model is 66% . so we can suggested that 40 m span model is suitable for design and construction as well traffic planning issues also the 40 m span model is economical as compare to 70 m span model. COMPARE TOTAL REINFORCEMENT OF PIERS IN 40 M & 70 M SPAN MODEL SPAN REINFORCEMENT RATIO 40 229.05 QTL 0.336 70 681.89l QTL Here it is observed that the variation in Total Reinforcement of piers in 40 m & 70 m span model is 33% . so we can suggested that 40 m span model is suitable for design and construction as well traffic planning issues also the 40 m span model is economical as compare to 70 m span model. COMPARE TOTAL CONCRETE QUANTITY IN 40 M & 70 M SPAN MODEL SPAN CONCRETE RATIO 40 540.00l CU.METER 0.677 70 798.47l CU.METER Here it is observed that the variation in Total Concrete Quantity in 40 m & 70 m span model is 67% . so we can suggested that 40 m span model is suitable for design and construction as well traffic planning issues also the 40 m span model is economical as compare to 70 m span model. MAXIMUM SUPPORT REACTION COMPARE BETWEEN 40 M & 70 M SPAN MODEL SPAN Fx(kN) Fy(kN) Fz(kN) Mx(kNm) My(kNm) Mz(kNm) RATIO 40M 1015.39 34172.93 2341.54 12271.43 506.449 10453.57 0.513 70M 5752 49368.23 12798.544 56243.61 5056.449 33486.26 Here it is observed that the variation in Maximum support Reaction in 40 m & 70 m span model is 51% . so we can suggested that 40 m span is suitable for design and construction as well traffic planning also the 40 m span model is economical as compare to 70 m span model.
16.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2119 BEAM MAXIMUM STRESS COMPARE BETWEEN 40 M & 70 M SPAN MODEL SPAN Fx(kN) Fy(kN) Fz(kN) Mx(kNm) My(kNm) Mz(kNm) RATIO 40M 34172 2475 2205 1961 12271 22888.09 0.433 70M 49368.23 12102.346 12798.54 3243.753 8137.466 89864.06 Here it is observed that the variation in Axial force (Fx) in 40 m & 70 m span model is 69% . and Shear force (Fy) variation in 40 m & 70 m span model is 20%. And Maximum Bending moment (Mz) variation in 40 m & 70 m span model is 25%. so on the bases of above all variation we can suggested that 40 m span is suitable for design and construction as well traffic planning also the 40 m span model is economical as compare to 70 m span model. NODES MAXIMUM DISPLACEMENT COMPARE BETWEEN 40 M & 70 M SPAN MODEL SPAN X mm Y mm Z mm Resultant RATIO 40M 9.279 -205.391 -2.955 205.583 0.254 70M 17.599 -822.939 6.174 823.147 On the basis of all comparision and Rccl Design Resultlforl alll piers & girdersl inl modell withl midl spanl ofl 40l ml arel similarl thatl willl makel constructionl easier. On the basis of all comparision and Rccldesign Result forl alll piers & girdersl inl modell withl midl spanl ofl 70l ml arel differentl thatl willl makel constructionl difficult. Overalll variationl ofl Support Reactionsl forl differentl loadl casesl forl modell withl spanl 40ml isl lowerl thanl modell withl spanl 70m. Overalll variationl ofl beaml forcesl forl differentl loadl casesl forl modell withl spanl 40ml isl lowerl thanl modell withl spanl 70m. Overalll variationl ofl beaml stressesl (compressive/tensile)l forl differentl loadl casesl forl modell withl spanl 40ml isl lowerl thanl modell withl spanl 70m. On the basis of all compression we suggested that 40m span is suitable for that location because the variation of all comparative results of 40m span model is very low as compare to 70 m span. 7. REFERENCES 1. Kuppumanikandan A (2013), parametic studies on major element of an elevated metro bridge,Department of Structural engineering,Nit Rourkela 2. Gupta P.K, Singh KK, Mishra A. (2010). Parametric Study on Behaviour of Box-Girder Bridges using Finite Element Method. Asian Journal of Civil Engineering (Building and Housing), 11(1), 135–148. 3. . IRS Concrete Bridge Code (1997). Code of Practice for Plain, Reinforced & Prestressed Concrete for General Bridge Construction Code. Research Designs and Standards Organisation, Lucknow. 4. IS 13920 (1993). Indian Standard Code of Practice for Ductile Detailing of Reinforced Concrete Structures Subjected to Seismic Forces. Bureau of Indian Standards, New Delhi. 5. IS 1893 Part 1 (2002). Indian Standard Criteria for Earthquake Resistant Design of Structures. Bureau of Indian Standards. New Delhi. 6. IS 456 (2000). Indian Standard for Plain and Reinforced Concrete - Code of Practice. Bureau of Indian Standards. New Delhi. 7. Design Basis Report of Lucknow Metro (2013). Lucknow Metro Rail Corporation Limited. Lucknow(Lmrc). 8. Detailed Project Report of Lucknow Metro (2013). Lucknow Metro Rail Corporation Limited. Lucknow (u.p). 9. STAAD.Pro V8i (2008). Bentley Systems, Inc. Research Engineers, International Headquarters, CA, USA..
17.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2120 10. Shushkewich, K. W. (1988). Approximate analysis of concrete box girder bridge. J. Struct. Eng., 114 (7), 1644–1657.. 11. IRC:6-2000; Standard Specifications and code of practice for road bridges; Section II: Loads and Stresses (4th revision); The Indian Roads Congress (New Delhi, 2000). 12 Sisodiya, R. G., Cheung, Y. K., and Ghali, A. (1970). Finite-element analysis of skew, curved box girder bridges. Int. Assoc. Bridges Struct. Eng., (IABSE), 30 (II), 191–199. 13. N. Krishna Raju (2009), “Design of Bridges”, Fourth edition, Oxford and IBH Publishing Co. Pvt. Ltd., India 14. Mahesh Pokhrel (FEBRUARY, 2013), in his study Comparative Study of RCC T girder bridge design using different codes, Nepal 15. Kees Vanamölder (MAY,2017) conducted study in order to evaluate possible structural solutions for bridges in practical case, case-study was performed on the basis of designed Rail Baltic bridge over Pärnu river. BIOGRAPHIES Mr Nilesh Shadunkey P.G. Scholar,Deptt of structural engineering, Truba institute of Engineering and Information Technology, Rgpv university ,Bhopal,(M.P),INDIA Rashmi Sakalle Asso. Prof. & H.O.D , Deptt of Civil and Applications Truba institute of Engineering and Information Technology, Rgpv university ,Bhopal,(M.P),INDIA
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