Analysis of a RCC frame Tall Structure using Staad Pro on Different Seismic Zones Considering Ground Slopes
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This document analyzes the seismic behavior of a 10-story reinforced concrete frame structure located on sloping ground with different slopes and soil types. The structure is modeled in STAAD Pro and analyzed using the response spectrum method for different seismic zones. Results show that displacement, shear force, and bending moment increase as the slope and seismic zone increase. Displacement also increases as the soil type changes from hard to soft. The study concludes that ground slope and soil type have a significant impact on the seismic response of the structure.
![International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072
© 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 1274
Max displacement (mm) in X direction.
Table 3.7: Maximum displacement in 14 degree slope
Soil
Type
Maximum displacement (mm) in 140
sloping ground in x direction
ZONE-II
ZONE-
III
ZONE-
IV ZONE-V
Soft 97.85 154.79 233.05 351.93
Medium 82.92 127.11 191.02 285.40
Hard 63.11 97.37 143.06 212.45
Fig 3.7: Maximum displacement
Max Shear Force in 14 Degree Slope
Table 3.8: Maximum shear force in 14 degree slope
Soil
Type
Maximum Shear force (kN) in 140 slope
ZONE-II
ZONE-
III
ZONE-
IV ZONE-V
Soft 176.4 247.64 352.27 502.68
Medium 155.05 211.45 293.68 417.80
Hard 132.36 172.51 228.39 321.22
Fig 3.8: Maximum shear force graph
3 Max. bending moment (kNm) in 14 Degree Slope
Table 5.25: Maximum bending moment in 14 degree
slope
Soil
Type
Max bending Moment (kNm) in 140
sloping slope
ZONE-II
ZONE-
III
ZONE-
IV ZONE-V
Soft Zone-II Zone-III Zone-IV Zone-V
Medium 255.41 360.82 544.64 820.35
Hard 229.19 298.38 442.25 666.82
Fig 5.25: Maximum bending moment graph
Conclusion-
As per the results
Results shows that as the slope is increasing bending
moment is also increasing also as the effect of soil and
seismic zones shows their impact.
Shear force is increasing as seismic zones areincreasingalso
the soil is also showing its effects.
As the slope is increasing displacement is increasing.
REFERENCES
[1] Sujit kumar, vivek garg, abhay sharma. “Effect Of Sloping
Ground On Structural Performance Of RCC Building Under
Seismic Load”, International journal of sciences,engineering
and technology, ISSN: 2348-4098, Volume 2, Issue 6, 2014
[2] Umakant Arya, Aslam Hussain, Waseem Khan, “Wind
Analysis of Building Frames on Sloping Ground”.
International Journal of Scientific and Research
Publications,Issn 2250-3153 Volume 4, Issue 5, May 2014.
[3] Vrushali S. Kalsait 1, Valsson Varghese, “Design of
Earthquake Resistant Multistoried Building On A Sloping
Ground”. IJISET - International Journal ofInnovativeScience,
Engineering & Technology,ISSN 2348 – 7968. Vol. 2 Issue 7,
July 2015](https://image.slidesharecdn.com/irjet-v4i3301-171226064214/85/Analysis-of-a-RCC-frame-Tall-Structure-using-Staad-Pro-on-Different-Seismic-Zones-Considering-Ground-Slopes-4-320.jpg)
![International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072
© 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 1275
[4] Paul D.K. and Kumar S. Stability Analysis of Slope with
Building Loads. Soil Dynamics and Earthquake Engineering,
16, 395-405,(1997).
[5] Vijaya Narayanan, et. al, “Performance of RC Buildings
along Hill Slope of Himalaya during 2011 Sikkim
Earthquake”, EERI Newsletter, EERI Special Earthquake
Report, 1-14, February 2012.
[6] Dr. S. A. Halkude, Mr. M. G. Kalyanshetti, Mr. V. D. Ingle
“Seismic Analysis of Buildings resting on sloping grounds
with varying Number of bays and hill Slopes”, International
Journal of Engineering Research and Technology, ISSN:
2278-0181, VOL 2, ISSUE 12, December 2013.
[7] Nalawade.“ Seismic Analysis of Buildings on Sloping
Grounds,” University of Pune, M.E.dissertation, December
2003.
[8] S.M.Nagargoje et al," Seismic performance of
multstoreyed buildingonslopingground”.elxirinternational
journal, December 2012.
[9] D.K. Paul, “seismic analysis of framed buildings on hill
slopes”, Bulletin of the Indian Society of Earthquake
Technology, ISSN:335, vol 30, pp. 113-124,December 1993.
[10] G.Suresh, “Seismic Analysis o f Buildings Resting on
Sloping GroundandConsideringBraceSystem”international
journal of engineering research & technology,Vol.3,ISSUE
9,ISSN:2278:0181, , September 2014.
.
[11] Satish Kumar and D.K. Paul3, Hill building
configurations from seismic considerations, Journal of
structural engineering , vol. 26, No. 3, Oct. 1999.
[12] B.G. Birajdar and S.S. Nalawade5, Seismic analysis of
buildings resting on sloping ground, 13th world conference
on earthquake engineering, Vancuover, B.C., Canada, August
1-6, 2004, paper No. 1472.
[13] Fuji, K., Nakano, Y. and Sanada, Y. (2004), “Simplified
Nonlinear Analysis Procedure for Asymmetric Buildings”,
Proc. of the 13th World Conference on Earthquake
Engineering, Vancouver, Canada, Paper No. 149
[14] Sharad Sharma (2008), “Seismic soil-structure
interaction in buildings on hillyslopes”M.Tech.Dissertation,
Indian Institute of Technology Roorkee.
[15] Dr. B.G. Naresh Kumar and Avinash Gornale Seismic
Performance Evaluation of Torsionally Asymmetric
Buildings International Journal of Science and Engineering
Research, bVolume 3, Issue 6, June 2012.
[16] Pandey A.D, PrabhatKumar,SharadSharma Seismic soil
structure interaction of buildingsonhill slopesInternational
Journal of Civil and Structural Engineering Volume 2, No 2,
2011.](https://image.slidesharecdn.com/irjet-v4i3301-171226064214/85/Analysis-of-a-RCC-frame-Tall-Structure-using-Staad-Pro-on-Different-Seismic-Zones-Considering-Ground-Slopes-5-320.jpg)
Analysis of a RCC frame Tall Structure using Staad Pro on Different Seismic Zones Considering Ground Slopes
- 1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 1271 Analysis of a RCC frame Tall Structure using Staad Pro on Different Seismic Zones Considering Ground Slopes Rajkumar Vishwakarma1, Anubhav Rai2 1M-Tech Student, Department of Civil Engineering, Gyan Ganga Institute of Tech. & Science, Jabalpur M.P. India 2Asst. Professor, Department of Civil Engineering, Gyan Ganga Institute of Tech. & Science, Jabalpur M.P. India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract –The hilly areas innortheastIndiacontained seismic activity. Due to hilly areas building are required to be constructed on sloping ground due to lack of plain ground. The buildings are irregularly situated on hilly slopes in earthquake areas therefore many damages occurred when earthquake are affected, this may be causes lot human disaster and also affect the economic growth of these areas... In this paper we analyzed using Staad Pro comparison between sloping ground, with different slope and plaingroundbuildingusingResponse Spectrum Method as per IS 1893-2000 The dynamic response, Maximum displacement in columns are analyzedwithdifferentconfigurationsofslopingground. Keywords— Seismic, Multistoried building, Sloping ground I Introduction India has track record of catastrophic earthquakes, at various regions, which left behind loss of many lives and heavy destruction to property andeconomy.Investigationof buildings in hilly region is somewhat different than the buildings on leveled ground, since the column of the hill building rest at different levels on the slope. Such building have mass and stiffness varying along the vertical and horizontal planes resulting the center of mass and center of rigidity do not coincideonvariousfloors,hencetheydemand torsional analysis, in addition to lateral forces under the action of earthquakes. The unsymmetrical building require great attention in the analysis and design undertheaction of seismic excitation. Past earthquake in which, buildings located near the edge of a stretch of hills or on sloping ground suffered serious damages. The shorter column attracts more forces and undergoesdamage,whensubjected to earthquakes. The other problems associated with hill buildings, additional lateral earth pressure at various levels, slope instability, different soil profile yielding unequal settlement of foundation. Fig. 1.1 plan STRUCTURAL MODELLING A RCC medium rise building of 10 stories with floor height 3 m subjected to earthquake lading in V has been considered. In this regard STAAD Pro V8i software has been considered as tool to perform. Effect of sloping effect of the ground on behaviour of structural frames is analysed. The plan for the above building shown in figure has been considered to carry out the study the dimension of the building are 12m x 12m. Generally in such cases thebuilding is to be analysed for the earthquake forcebecausemaximum lateral force induced in building is due to earthquake load. The structural effect of the building on various sloping ground is to be studied. This STUDY deals with comparative analysis of seismic behavior on tall structures G+10 building frame with three different soil types and differentslopeofgroundas00,70 and 140. Under the Earthquake effect as per IS 1893(part I) - 2002 static analysis. A comparison of analysis results in terms of Maximum displacements, Maximum bending moment, Maximum shear force has been carried out.
- 2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 1272 Fig. 2 structural modelling in staad pro Result analysis- Maximum displacement (mm) Table 3.1: Maximum displacement in 0 degree slope Soil Type Maximum displacement (mm) in 00 sloping ground in X direction ZONE- II ZONE- III ZONE- IV ZONE-V Soft 100.03 158.77 237.10 354.58 Medium 81.86 131.70 193.48 291.10 Hard 60.75 95.93 142.83 213.18 Fig 3.1: Maximum displacement in 0 degree slope Table 3.2: Maximum shear force kN in 0 degree slope Soil Type Maximum Shear force (kN) in 00 slope ZONE- II ZONE- III ZONE- IV ZONE- V Soft 158.5 231.9 331.8 474.7 Medium 135.8 195.0 273.3 396.9 Hard 111.5 153.4 212.0 301.9 Fig 3.2: Maximum shear force kN in o degree slope
- 3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 1273 Table 3.3: Maximum Bending moment (kN-m) in 0 degree slope Soil Type Maximum Bending Moment (kN-m) in 00 sloping ground Zone- II Zone- III Zone-IV Zone- V Soft 209.45 324.76 477.88 718.66 Medium 175.08 267.18 392.3 584.5 Hard 141.22 201.42 295.76 430.62 Fig 3.3: Maximum bending moment (kNm) in 0 degree slope Max Displacement in 7 degree slope- Table 3.4: Maximum displacement in X direction 7 degree slope Soil Type Maximum Displacement (mm) in 70 Sloping Ground in X direction ZONE- II ZONE- III ZONE- IV ZONE-V Soft 92.99 147.37 221.79 329.48 Medium 76.18 122.47 182.44 268.95 Hard 56.65 91.19 131.58 197.66 Fig 3.4: Maximum displacement Maximum shear force in 7 degree slope Table 3.5: Maximum shear force in 7 degree slope Soil Type Maximum Shear force (kN) in 70 slope ZONE-II ZONE- III ZONE- IV ZONE-V Soft 300.137 461.214 681.381 101.631 Medium 250.543 381.175 557.893 824.40 Hard 192.922 287.963 417.035 612.76 Fig 3.5 : Maximum shear force graph Max. bending moment (kNm) in 7 Degree Slope Table 3.6: Maximum bending moment in 7 degree slope Soil Type Bending moment (kN-m) in 70 degree ZONE-II ZONE- III ZONE- IV ZONE-V Soft 256.34 433.30 654.36 982.52 Medium 227.50 341.16 533.92 804.79 Hard 197.11 254.34 358.51 592.15 Fig 3.6: Maximum bending moment graph
- 4. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 1274 Max displacement (mm) in X direction. Table 3.7: Maximum displacement in 14 degree slope Soil Type Maximum displacement (mm) in 140 sloping ground in x direction ZONE-II ZONE- III ZONE- IV ZONE-V Soft 97.85 154.79 233.05 351.93 Medium 82.92 127.11 191.02 285.40 Hard 63.11 97.37 143.06 212.45 Fig 3.7: Maximum displacement Max Shear Force in 14 Degree Slope Table 3.8: Maximum shear force in 14 degree slope Soil Type Maximum Shear force (kN) in 140 slope ZONE-II ZONE- III ZONE- IV ZONE-V Soft 176.4 247.64 352.27 502.68 Medium 155.05 211.45 293.68 417.80 Hard 132.36 172.51 228.39 321.22 Fig 3.8: Maximum shear force graph 3 Max. bending moment (kNm) in 14 Degree Slope Table 5.25: Maximum bending moment in 14 degree slope Soil Type Max bending Moment (kNm) in 140 sloping slope ZONE-II ZONE- III ZONE- IV ZONE-V Soft Zone-II Zone-III Zone-IV Zone-V Medium 255.41 360.82 544.64 820.35 Hard 229.19 298.38 442.25 666.82 Fig 5.25: Maximum bending moment graph Conclusion- As per the results Results shows that as the slope is increasing bending moment is also increasing also as the effect of soil and seismic zones shows their impact. Shear force is increasing as seismic zones areincreasingalso the soil is also showing its effects. As the slope is increasing displacement is increasing. REFERENCES [1] Sujit kumar, vivek garg, abhay sharma. “Effect Of Sloping Ground On Structural Performance Of RCC Building Under Seismic Load”, International journal of sciences,engineering and technology, ISSN: 2348-4098, Volume 2, Issue 6, 2014 [2] Umakant Arya, Aslam Hussain, Waseem Khan, “Wind Analysis of Building Frames on Sloping Ground”. International Journal of Scientific and Research Publications,Issn 2250-3153 Volume 4, Issue 5, May 2014. [3] Vrushali S. Kalsait 1, Valsson Varghese, “Design of Earthquake Resistant Multistoried Building On A Sloping Ground”. IJISET - International Journal ofInnovativeScience, Engineering & Technology,ISSN 2348 – 7968. Vol. 2 Issue 7, July 2015
- 5. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 1275 [4] Paul D.K. and Kumar S. Stability Analysis of Slope with Building Loads. Soil Dynamics and Earthquake Engineering, 16, 395-405,(1997). [5] Vijaya Narayanan, et. al, “Performance of RC Buildings along Hill Slope of Himalaya during 2011 Sikkim Earthquake”, EERI Newsletter, EERI Special Earthquake Report, 1-14, February 2012. [6] Dr. S. A. Halkude, Mr. M. G. Kalyanshetti, Mr. V. D. Ingle “Seismic Analysis of Buildings resting on sloping grounds with varying Number of bays and hill Slopes”, International Journal of Engineering Research and Technology, ISSN: 2278-0181, VOL 2, ISSUE 12, December 2013. [7] Nalawade.“ Seismic Analysis of Buildings on Sloping Grounds,” University of Pune, M.E.dissertation, December 2003. [8] S.M.Nagargoje et al," Seismic performance of multstoreyed buildingonslopingground”.elxirinternational journal, December 2012. [9] D.K. Paul, “seismic analysis of framed buildings on hill slopes”, Bulletin of the Indian Society of Earthquake Technology, ISSN:335, vol 30, pp. 113-124,December 1993. [10] G.Suresh, “Seismic Analysis o f Buildings Resting on Sloping GroundandConsideringBraceSystem”international journal of engineering research & technology,Vol.3,ISSUE 9,ISSN:2278:0181, , September 2014. . [11] Satish Kumar and D.K. Paul3, Hill building configurations from seismic considerations, Journal of structural engineering , vol. 26, No. 3, Oct. 1999. [12] B.G. Birajdar and S.S. Nalawade5, Seismic analysis of buildings resting on sloping ground, 13th world conference on earthquake engineering, Vancuover, B.C., Canada, August 1-6, 2004, paper No. 1472. [13] Fuji, K., Nakano, Y. and Sanada, Y. (2004), “Simplified Nonlinear Analysis Procedure for Asymmetric Buildings”, Proc. of the 13th World Conference on Earthquake Engineering, Vancouver, Canada, Paper No. 149 [14] Sharad Sharma (2008), “Seismic soil-structure interaction in buildings on hillyslopes”M.Tech.Dissertation, Indian Institute of Technology Roorkee. [15] Dr. B.G. Naresh Kumar and Avinash Gornale Seismic Performance Evaluation of Torsionally Asymmetric Buildings International Journal of Science and Engineering Research, bVolume 3, Issue 6, June 2012. [16] Pandey A.D, PrabhatKumar,SharadSharma Seismic soil structure interaction of buildingsonhill slopesInternational Journal of Civil and Structural Engineering Volume 2, No 2, 2011.