Scientific Journal of Impact Factor (SJIF): 5.71
e-ISSN (O): 2348-4470 p-ISSN (P): 2348-6406
International Journal of Advance Engineering and Research Development Volume 5, Issue 03, March -2018
Reinforcement Detailing of RCC Structure using Staad Pro 1,2,3
Ramya Krishnan 1, V.S Satheesh 2, S.Suresh Babu 3 Department of Civil Engineering, Adhiyamaan College of Engineering
Abstract - Structural Engineers are stiring for the most efficient and economical design with accuracy in solution while ensuring that the final design of the building must be serviceable for its intended function over design lifetime. In the present work, a G+3 structure is analyzed and designed using civil engineering application software Staad Pro. Nowadays for quick and better accuracy the software techniques are used. Staad Pro is the one among the leading softwares for the design of the structure. For this project, an ongoing project has been selected “Spiher Medical Academic Block Building” which is executed in Hosur, Krishnagiri District. The structure is analyzed to find the shear force, bending moment, deflections and reinforcement detailing for the structural components of the building such as slab, beam and column to develop the economical design. The reinforcement detailing is very important since a huge number of structures fail due to improper detailing methods. Keywords- STAAD.Pro, Axial Force, Shear Force, Bending Moment, Lateral Drift, Lateral Displacement. I.
INTRODUCTION
The design of a simple building used to take at least a week during earlier times. However, the design of complicated structures can now be done within a week’s time and with more accuracy using a host of software available in the market. Staad Pro is the present day leading design software in the market. Many design companies use this software for their project design purposes. Our project having 46.895m x 71.95m, G+3 structure is modeled using Staad Pro. The height of the each storey is 3.8m and the total height of the structure is 15.2m. Analysis and design of the structure are done from which the shear force, bending moment, the area of steel, number of bars, diameter of the bars and the reinforcement detailing used in each components are obtained. Detailing is very important like the designs since proper detailing of engineering designs is an essential part in the planning and the engineering process as some of the most devastating collapses in history have been occurred due to defective detailing. Reinforcement detailing is prepared for each design results and then compared and checked if it satisfies the codal provision. Total reinforcement steel quantity and the concrete quantity representing the volume of concrete in the slab, beam and column are obtained. II.
DESCRIPTION OF PHARMACY BUILDING
2.1 Plan Details Total Building Area : 10784 Sq.m or 116000 Sq.ft Area of Single Storey : 2696 Sq.m or 29000 Sq.ft Number of stories : G+3 Total Height of the building : 15.2 m Height of each Storey : 3.8 m Total number of column : 136 Support Condition : Fixed
Figure 1. Ground floor plan of the Pharmacy Building @IJAERD-2018, All rights Reserved
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International Journal of Advance Engineering and Research Development (IJAERD) Volume 5, Issue 03, March-2018, e-ISSN: 2348 - 4470, print-ISSN: 2348-6406 2.2. Material Specifications Table 1. Material Properties of Pharmacy Building Material Properties Grade of Concrete
M25
Grade of steel
fy=500 N/mm2
Density of Concrete
áľžc=25kN/m3
2.3. Member Specifications Table 2. Column Schedule of Pharmacy Building Column Schedule Type
Cross Section
Numbers
C1
450mm*750mm
102
C2
450mm*900mm
2
C3
350mm*350mm
22
C4
400mm*400mm
2
C5
230mm*750mm
4
C6
600mm
4
Total No’s
136
Table 3. Beam Schedule of Pharmacy Building Beam Schedule Type
Cross Section
B1
230mm*600mm
B2
350mm*600mm
B3
400mm*750mm
B4
450mm*600mm
B5
450mm*1350mm
B6
600mm*600mm
Table 4.Slab Schedule of Pharmacy Building Slab Schedule Type
Thickness
S1
150mm
S2
200mm
(Sunken Slab)
S3
175mm
(in 4th floor)
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Remarks
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International Journal of Advance Engineering and Research Development (IJAERD) Volume 5, Issue 03, March-2018, e-ISSN: 2348 - 4470, print-ISSN: 2348-6406 2.4. Modeling Modeling of the structure is done based on the plan using the material and member specifications provided above.
Figure 2. Model generated 3D view of the structure
Figure 3. Model generated plan view of the structure 2.5. Loading Considerations The loads considered for the analysis of the structure are Live Load, Self Weight or Dead Load, Masonry or Wall load. Since the structure is less tall wind load is not considered. 2.4.1. Live Load Live load of 3kN/m2 is considered from Table 1 of the code IS 875-Part 2 (1987) for Educational Building. 2.4.2. Dead Load Dead load or Self weight comprises of the beam, column and slabs of the structural building. 2.4.3. Masonry Load Masonry load or wall load considered is 12 kN/m which is taken from the code IS 875-Part 1 (1987).
Figure 4. Loads Assigned in the structure @IJAERD-2018, All rights Reserved
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International Journal of Advance Engineering and Research Development (IJAERD) Volume 5, Issue 03, March-2018, e-ISSN: 2348 - 4470, print-ISSN: 2348-6406 III.
RESULT AND DISCUSSION
Analysis result, design result and the reinforcement detailing obtained for the G+3 Pharmacy Building using Staad.Pro is given and discussed below. 3.1. Analysis Results
Figure 5. Node displacement summary of the structure in Staad pro
Figure 6. Support reaction summary of the structure in Staad pro
Figure 7. Reaction static check of the structure in Staad Pro @IJAERD-2018, All rights Reserved
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International Journal of Advance Engineering and Research Development (IJAERD) Volume 5, Issue 03, March-2018, e-ISSN: 2348 - 4470, print-ISSN: 2348-6406
Figure 8. Shear Force Diagram of the particular frame in the structure
Figure 9. Bending Moment Diagram of the particular frame in the structure 3.2. Design Results Table 5. Design Result of beams of different cross section Summary of Design Result of Beam Grade of Concrete : M25 Grade of Steel : Fe500 Cover : 30mm S.No
Beam
Cross Section(mm)
Top Reinforcement
Bottom Reinforcement
1
1846
230x600
2no-12mm Dia
2no-12mm Dia
8mmDia@200mmc/c
2
594
350x600
3no-12mm Dia
3no-12mm Dia
8mmDia@200mmc/c
3
583
400x750
7no-10mm Dia
7no-10mm Dia
8mmDia@220mmc/c
4
580
450x600
4no-12mm Dia
4no-12mm Dia
8mmDia@200mmc/c
5
586
450x1350
9no-12mm Dia
5no-16mm Dia
8mmDia@200mmc/c
6
584
600x600
2no-10mm Dia
6no-16mm Dia
8mmDia@150mmc/c
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Ties
323
International Journal of Advance Engineering and Research Development (IJAERD) Volume 5, Issue 03, March-2018, e-ISSN: 2348 - 4470, print-ISSN: 2348-6406
Figure 10. Reinforcement Detailing of beam no 594 Table 6. Design Result of columns of different cross section Summary of Design Result of Column Grade of Concrete : M25 Grade of Steel : Fe500 Cover : 40mm Column S.No No
Cross Section (mm)
Main Reinforcement
Tie Reinforcement
1
1
450x750
12-12mm Dia
8mmDia @190mmc/c
2
525
450x900
12-12mm Dia
8mmDia @190mmc/c
3
233
350x350
4-12mm Dia
8mmDia @190mmc/c
4
528
400x400
8-12mm Dia
8mmDia @190mmc/c
5
684
230x750
12-12mm Dia
8mmDia @190mmc/c
6
780
600mm Dia
21-25mm Dia
8mmDia @300mmc/c
Figure 10. Reinforcement Detailing of column no 525 @IJAERD-2018, All rights Reserved
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International Journal of Advance Engineering and Research Development (IJAERD) Volume 5, Issue 03, March-2018, e-ISSN: 2348 - 4470, print-ISSN: 2348-6406 3.3. Estimation
Figure 11. Total Concrete and Steel Quantity IV. CONCLUSION
By using Staad Pro, analysis and design work can be shortly completed. The displacement of the beam coming in the building is within the limits of Indian standards. The structural components of the building are safe in shear and flexure. Estimated quantity of steel provided for the structure is found to be economical. REFERENCES
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International Journal of Advance Engineering and Research Development (IJAERD) Volume 5, Issue 03, March-2018, e-ISSN: 2348 - 4470, print-ISSN: 2348-6406 [7] Arunkumar N Pattar, Sunil Kumar Chavan, Muralidhar Raje, Prof.Vishwanath B Patil, “Analysis and Design of Multi Storied Structural System with Wind Load Effects using Staad Pro And E- Tabs”, International Journal Of Innovative Research In Technology ( IJIRT) ISSN: 2349-6002, Volume 2, June 2015. [8] Balwinder Lallotra, Dhirendra Singhal , “A Comptability Study on Design and Analysis of Reinforced Concrete Structural Design using Software”, International Journal of Engineering and Technology (IJET), ISSN (Print):23198613, ISSN: 0975-4024, Volume 9 ,No 2 April-May 2017. [9] Bandipati Anup, Dr. Dumpa Venkateswarlu, “Comparison between Manual Analysis and Staad Pro Analysis of Multi Storey Building”, International Journal of Research Sciences and Advanced Engineering [IJRSAE] Volume 2, Issue 15, September 2016. [10] D. Ramya, A.V.S.Sai Kumar, “Comparative Study on Design and Analysis of Multistoried Building (G+10) by STAAD.Pro And Etabs Softwares”, International Journal Of Engineering Sciences & Research Technology (IJESRT) ISSN: 2277-9655, October 2015. [11] Dr.Ashok kumar.N, Navaneethan.M, Wavuja.B, Gopala Krishnan.D, “Planning Analysis & Design of Hospital Building Using Staad Pro V8i”,International Journal of Scientific & Engineering Research, ISSN 2229-5518, Volume 8, Issue 4, April-2017. [12] IS456: 2000 – Plain and Reinforced Concrete – Code of Practice (fourth revision) [13] IS 875 (Part 1 to 5): 1987 – Code of Practice for Design Loads (Other than earthquake) for buildings and structures (second revision). [14] K Venu Manikanta , Dr. Dumpa Venkateswarlu , “ Comparative Study on Design Results of a Multi-Storied Building using Staad Pro And Etabs For Regular and Irregular Plan Configuration”, International Journal of Research Sciences and Advanced Engineering [IJRSAE], Volume 2, Issue 15, PP: 204 – 215, September ,2016. [15] Mahmad Saber, D.Gouse Peera, “Comparison Design Result of RCC Building using STAAD AND ETABS Software”, International Journal of Innovative Research in Advanced Engineering (IJIRAE), ISSN: 2349-2163, Issue 8, Volume 2, August 2015. [16] Puneet Mittal, Nishant Kad, “A Comparison of the analysis and design results of 4 Story using Staad Pro And Etabs Software”, International Journal of Research (IJR), E-ISSN: 2348-6848, P-ISSN:2348-795x, Volume 3, Issue 05, March 2016. [17] Safwan Ahmad, Md. Moazzam Sagar, Rajesh Kumar Das, Bhagirath Mandal, “Analysis And Design of RCC Multistorey Hospital Building (G+2) & comparison analysis with Staad Pro”, International Journal for Scientific Research & Development (IJSRD), 2321-0613, Vol. 5, Issue 05, 2017.
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