Noise Controlling Of Buildings ppt civil

Noise Controlling Of Buildings

1. NOISE CONTROL OF BUILDING Team Member: Manish Kumar (2021/C/33) Ayush Ranjan (2021/C/30) Kumar Gaurav (2021/C/10) Kumar Abhishek Mehta (2021/C/32)

2. INTRODUCTION Noise Control in Buildings: Why It Matters Improved Comfort and Well-being Enhanced Productivity and Concentration Better Sleep Quality Reduced Health Risks

3. Imagine sound as a ripple traveling through a medium, like air or water. This ripple is a variation in pressure compared to the surrounding environment. Understanding Sound The Building Blocks of Noise Sound as a Pressure Wave Key Characteristics of Sound Frequency Amplitude Wavelength

4. The Impact of Noise on Occupants Noise pollution within buildings isn't just a minor inconvenience – it can significantly impact the well-being of those who use the space. Reduced Productivity and Concentration Impaired Communication and Collaboration Disrupted Sleep Quality and Relaxation Potential Hearing Health Problems Increased Stress and Anxiety Levels

5. PARAMETERS Building materials are generally rated by their noise reduction coefficient(NRC). Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound.

6. WAYS TO CONTROL ●Three BASIC ways to control noise 1. Replace the sound source with a quieter one. 2. Block the sound with a solid, heavy material that resists the transmission of sound waves. 3. Absorb the sound with a light, porous material that soaks up sound waves. Acoustical design issues for buildings include site noise considerations, control of noise transfer, establishing noise standards, room acoustics considerations, sound isolation, vibration control and audio/visual considerations

7. METHODS SOUND ABSORPTION SOUND INSULATION The surface can absorb sound instead of reflecting it. Good sound-absorbing materials are carpet, foam, padding, and fiberglass insulation. Method: Room acoustics Through sound barrier transmission, sound is reduced. By increasing wall thickness and isolating one side of construction from the other. Methods: Wall construction, Floor planning, space planning.

8. ROOM ACOUSTICS ROOM ACOUSTICS We receive direct and reflected sound in a room. Unwanted background noise is due to a high level of reflected sound in poor acoustical rooms. To achieve acceptable acoustic characteristics various points are taken into consideration: 1. location and extent of sound-absorbing materials 2. reduction of reverberation and speech interference 3. Shape of room(for libraries)

9. Best sound absorption materials

10. Lay in acoustical ceiling Suspended acoustical baffle SOUND ABSORPTION AT WORKPLACE

11. WALL CONSTRUCTION The standard partition is a single stud wall and one layer of gypsum board on each side, the acoustic performance can be improved by using light gauge metals instead of wood studs. STC (Sound transmission class) is a standard parameter to compare the performance of different construction materials

12. SPACE PLANNING Space planning involves organizing spaces to avoid adverse adjacencies of noisy equipment like mechanical equipment and electrical transformers with quiet spaces. It can be the most cost-effective noise control technique. FLOATING FLOOR CONSTRUCTION

13. •Noise is becoming a very big problem day to day it is degrading our health and ecological balance as well. One cannot remain untouched by this aspect of day-to-day issues. •By introducing noise control in buildings we can create less noisy residential and other constructions. As sound travels directly and through reflections, so to improve sound quality reflections should be minimized. CONCLUSION

14. Thank You