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Noise Control In Residential Buildings

By
Maaz Allah Khan, Faizan Quasim, Faraz Hussain, Imran Khan, Fazil Saleem
Azad Institute of engineering & technology

ABSTRACT:
The acoustical design issues for buildings involve the principal issues like site noise considerations. In any heavily populated area, there is enough activity going on at once during the day to generate all kinds of sounds across the audible spectrum of human hearing. Planes take off and land, traffic moves along roadways, construction crew repair roads, dogs bark, music blares, sirens sound, and lawns are mowed, etc.

The information contained in this article about library acoustics is intended as a source for these standards. As the architectural and engineering design of the project evolves, the design should be reviewed in light of the agreed upon acoustical programmatic requirements for the building project.

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Noise Pollution from Vehicular Traffic from Selected Junctions in Bengaluru

By
Paul Pop, Rashmi Kulranjan, Nived Uthaiah. P, Radhika V G
St Joseph’s College, Bengaluru

Mahesh Kashyap, Consultant, Bengaluru

ABSTRACT
Noise pollution can be defined as the unwanted sound that is released to the environment and disturbing the human beings. Sources of noise pollution include industrial sources, non-industrial sources, vehicles, uncontrolled use of loud speakers, construction activities such as drilling, etc. Noise levels from vehicles through engines and horns are the main cause of concern in cities and may potentially contribute about 60% of total noise pollution. An attempt was made to measure noise levels emanating from vehicles on selected roads within a radius of approximately two kilometers from St Joseph’s College. These are major roads that witness heavy traffic during peak and non-peak hours. Traffic volume and noise levels were measured at various junctions on these roads during peak and non-peak hours. The study also includes remedial measures that can be implemented to reduce the noise levels.

Keywords: Noise, Vehicles, Pollution, Decibels
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General Requirement for Walking – Working Surfaces at Height

By
Sreenivasa Hassan Jayaram
Manager-Projects, Jones Lang LaSalle India, Bangalore, Karnataka

General Requirements for Walking/Working Surfaces
1. Housekeeping –
Facilities shall be maintained free of debris, clutter and moisturein order to eliminate slip, trip and fall hazards. Where cleaning or other temporary situations cause floors to be wet, signs or other warning devices shall be used to warn of the slip hazard.

2. Wet Process Locations – Where wet processes are used; drainage, false floors, platforms, mats etc. shall be used to provide for dry work surfaces.
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Fall Protection Equipment Requirements

By
Sreenivasa Hassan Jayaram
Manager-Projects, Jones Lang LaSalle India, Bangalore, Karnataka

1. Anchorages – An anchorage is a secure point of attachment for lifelines, lanyards or deceleration devices. Anchorages used for the purpose of fall arrest shall be capable of supporting at least 5,000 pounds (22.2 kN) per employee attached. Alternatively, a fall protection system may be designed, installed, and used as part of a complete personal fall arrest system which maintains a safety factor of at least two, under the supervision of a Qualified Person (certified anchor). Both are considered acceptable for fall protection so long as they meet the general requirements and the performance criteria specified for their type. General requirements for all fall arrest anchorages include:
i. Located as high as possible to minimize the free fall distance to and arresting forces to < 1800 pounds. (8kN).

ii. Located to prevent contact with obstructions or the ground below.

iii. Located directly over the working position whenever possible to minimize swing falls.
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General Requirements for Performing Work at Heights

By
Sreenivasa Hassan Jayaram
Manager-Projects, Jones Lang LaSalle India, Bangalore, Karnataka

General Requirements for Performing Work at Heights
A. Duty to provide fall protection – Where employees are required or allowed to walk or work while performing assigned tasks on a shall guard by a standard railing or the equivalent, every open-sided floor or platform 4 feet (1.2m) or more above adjacent floor or ground level on all open sides except where there is entrance to a ramp, stairway, or fixed ladder. Additionally, the railing shall be provided with a toe board when beneath the open sides where; a person can pass, there is moving machinery or there is equipment with which falling materials could create a hazard. In situations where guarding requirements are not applicable because employees are exposed to falls from an elevated surface on other than a predictable and regular basis, personal protective equipment or another effective fall protection methods shall be provided.

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