The document describes the analysis and design of a multi-purpose auditorium using STAAD.Pro v8i software. The auditorium will have a plinth area of 1900 sqm, seating capacity of 750, and height of 7.325m. It will be constructed using M30 grade concrete and Fe-500 steel. Bored cast-in-situ piles will be used for foundations. The STAAD model was generated and loads like dead, live, and wind loads were applied. Beams, columns, slabs, and foundations were designed to meet code requirements. Acoustic design considerations like reverberation time, echo reduction, and sound absorption were also addressed.
1. Analysis and Design of a Multi-Purpose Auditorium
using STAAD.Pro v8i
BY GROUP : 13
V. KRISHNA MADHUKAR 12241A01B6
V. VISHNU SAI 12241A01B7
R. SAI DEEPAK VARMA 12241A01A6
J. RAJENDER 13245A0122
J .RAJKUMAR 12241A0182
UNDER THE GUIDANCE OF
DR. C. LAVANYA
DEPARTMENT OF CIVIL ENGINEERING
IET
2. ABSTRACT
An Auditorium is a room built to enable the audience to hear and watch various activities such as performing arts, conducting
cultural events, professing lectures, and carrying out various presentations and seminars. As it could be used for all the occasions
stated above it is called as Multi-purpose Auditorium.
This project deals with the “ANALYSIS & DESIGN OF AN MULTI-PURPOSE AUDITORIUM USING STAAD.Pro v8i”. The design will be
in confirmation with IS 456:2000 and SP16 for plain and reinforced concrete, IS:875-1987 Part 1,2,3 for Dead load, Live load and
Wind load calculations,IS:1893-2002 for Seismic loads and IS 2526:1963 for acoustic design.
The plinth area of the proposed Auditorium is 1900 Sq m with a Seating capacity of 750 Nos, height of the Auditorium will be at
two levels +4.35m and +7.325m. M30 Grade of concrete and Fe- 500 steel will be used for all VRCC (Vibro-Roller compacted
concrete) works. Bored cast-in-situ end bearing piles with M30 grade of concrete will be used for foundation works.
3. PLAN & DETAILS
Plinth area of the proposed
Auditorium is 1900 Sq m
Seating capacity of 750 Nos
height of the Auditorium 7.325m
Bored cast-in-situ end bearing
piles
4. Analysis
The procedure followed in analyzing the auditorium is:
1. Generating the STAAD.Pro model
2. Assigning assumed cross sections
3. Assigning different types of loads and defining load combinations
4. Run the analysis
5. Verify STAAD output
10. DESIGN
The structural elements that are to be designed are
1. SLABS
2. BEAMS
3. COLOUMNS
4. FOUNDATION
Apart from Structural Design Auditorium has to be designed with proper Acoustics
12. ROOF SLAB @
7.325m Lvl
Load Details
DL : Self weight of slab : 25 KN/ m2
Floor finish : 26.7KN/m2
LL : Sloping roof upto 10 degrees when
access is not provided : 1.75 KN/m
Factored Load : 10.38KN/ m
13. BEAMS
There are different beams with
different sectional properties, such as..
0.13 X 0.23
0.38 X 0.23
0.43 X 0.3
0.52 X 0.3
0.73 X 0.3
0.88 X 0.3
1.2 X 0.45
Sample of Beam Design through STAAD
14. COLUMNS
DIFFERENT SETS OF COLOUMN
SECTIONS ARE..
0.3 X 0.45
0.3 X 0.6
0.53 X 0.3
0.75 X 0.3
1.2 X 0.45
0.6 Dia
Sample of column Design through STAAD
15. FOUNDATION
Steps to be followed in designing through STAAD Foundation:
1. Import STAAD File
2. Generate load combinations
3. Column positioning
4. Defining design parameters
5. Pile arrangement
6. Run analysis
7. Study design results
23. Acoustic Requirements
a) correct reverberation time,
b) absence of echo,
c) correct loudness level at all parts of the hall,
d) low background noise,
24. General Principles of Acoustic design
1) Site selection
Depending on ambient noise level
Background noise should not be more than 40-45 dB
2) Size and Shape
◦ in relation to the number of audience required to be seated.
◦ Avg height – 6 to 7.5 m, Fan shape is considered best, sidewalls shall not be
more than 100 degrees, Farthest seat shall not be more than 23 m with the
curtain line
3) Stage
Depends upon the type of Performance the hall is to cater for,
25. 4) Roof and ceiling
False ceiling, Sound proof material
Rear portion of ceiling is treated with sound absorbing material
5) Floor
Successive seats have to be raised over preceding ones, so that the listener head is about 12 cm above
the path of sound, which would pass over the head of the front person.
Angle of elevation of the inclined floor in auditorium should not exceed 8degrees
20% of the seating area should be allocated for lobby, Foyer
6) Seats
The angle subtended with the horizontal at the front most observer Should not exceed 30 degrees
Distance between the stage and front row should be 3.6m – 4.5m
Width of seat – 45- 56 cm
Distance between seats back to back – 85 - 106cm
7) Reverberation time :
Reverberation time is defined as the time it takes for an impulse of sound in a room to decay 60 dB, or
one millionth of the original level. This value is affected by most everything in the room, including room
volume, absorption of room materials, diffusion from surfaces, and room temperature and pressure
26. 8) Distribution of Acoustic Material
Those areas which cause objectionable sound reflection and need to be treated with sound absorbents
should be earmarked for treatment with sound absorbing material. These areas are
(a) the rear wall,
(b) the balcony parapet,
(c)any areas which may reflect sound back to the stage,
(d) concave areas
9) Sound Absorbing Materials
In an average hall, most of the absorption is provided by the audience. It is therefore, becomes desirable
to introduce special absorbers(such as wooden panelling) on ceilings and walls which will provide the
requisite amount of absorption so as to achieve optimum reverberation-time.
27. ADDITIONAL SCOPE
Carrying estimation and costing of the project
Scheduling of the project by brainstorming various activities and time required for each
activities
Managing construction phase using various project management tools like MS Project and
Primavera.
28. Conclusion
This project concerns the feasibility of construction of an auditorium with good
acoustic properties.
It involves the application of earlier coursework to carry out the analysis and
design of components of structure.
It was analysed using STAAD.Pro using generic loading, and AUTOCAD for
drawing and detailing the c/s and l/s of structural members.
The construction of auditorium presents a solution for many cultural
programmes being held.
29. References
https://www.academia.edu/6029955/ANALYSIS_DESIGN_ESTIMATION_OF_CIVIL_ENGINEERING_PROJ
ECT
https://www.wbdg.org/design/auditorium.php (WBDG National institute of Building sciences)
http://www.acoustics.asn.au/conference_proceedings/ICA2010/cdrom-ISRA2010/Papers/P3d.pdf
Howard Latham, Subjective Measurements-Practice, The Measurement of Quality in Auditorium
Acoustics by Subjective Scaling Methods - A Review of Developments in Theory and Practice,
1983, Pg. No. 1, 9
Howard Latham, Summary, The Signal-To-Noise Ratio for Speech Intelligibility- an Auditorium
Acoustics Design Index, 1979, Pg. No. 1
Video tutorials for STAAD Software
For Plans : bhargav buildpro technologies pvt. ltd
30. IS: 456 (2000), Plain and Reinforced Concrete Code Of Practice, Bureau Of Indian Standards, New Delhi.
IS: 875 (Part I) (1987), Code of practice for design loads (other than earthquake) for buildings and structures Part I Dead
Loads – Unit weights of building materials and stored material.
IS 875 (Part II) (1987), Code of practice for design loads (other than earthquake) for buildings and structures Part II
Imposed loads.
IS 875 (Part III) (1987), Code Of Practice For Design Loads: Wind Loads
SP: 16, Design aid for reinforced concrete structures to IS: 456 (1978)
IS 2526:1963, Code Of Practice For Acoustical Design Of Auditorium And Conference Halls