Welcome, Guest    
Login  Contact Us RSS Feeds
  Add Property                
Register Free to find a Perfect life partner In AnytimeMatrimony | Equated Monthly Installment(EMI) Calculator | Stamp Duty Calculator | Area Conversion Calculator | Know answer for your Taxation query | Ask Legal Advice @ Free of cost | Vaastu Tips
FAQ Sitemap
Newsletter Signup
Subscribe for our property news letter

News Search
Type a keyword to search.


Select a city to search property news.

News Archieves
September 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
September 2008
June 2008
February 2008
January 2008
December 2007
November 2007
External Links
 ICICI Home Loans
 LIC Housing
 HDFC Home Loans
 SBI Home Loans
 Axis Bank Home Loans
 Tamilnadu Govt Links
adProperty News

Fire engineering for buildings
Source : The Hindu Property Plus Published On : 2008-06-14 City : Chennai

      Examining and thinking through problems associated with aspects of fire safety is essential

      Many people, directly or indirectly involved in the design, construction or management of buildings view compliance with safety regulations as an awkward problem to be overcome with minimum cost. Seldom is it understood that fire safety objectives that underpin these provisions are limited.

     Typically, also, the safety of fire fighters and protection of property are merely given token consideration. And, even if comprehensive legislation existed at the national level, it may not be effectively monitored or controlled on the ground. A practical introduction to fire resistance performance in buildings in a format that is intended to appeal not only to experts, specialists, practitioners, regulators and controllers in the fire community, but, additionally, to other disciplines working in the mainstream building sector.

     Fire of certain intensity and duration will nearly eventually affect every building component. However, it is necessary to have building components to retain their stability and integrity at least for a sufficient period to ensure safe evacuation of all the occupants.

     Moreover, a fire should be prevented from spreading from one building to another and to prevent the sudden collapse of assemblies for the safety of fire fighting personnel. A practical fire engineering approach involves examining and thinking through problems associated with aspects of fire safety and protection in buildings, in this case fire resistance performance, and to base solutions on principles of reason, common sense, science, mainstream engineering, practicality and cost-effectiveness.

     The benefits accrued by such an approach include the provision of better and more reliable fire safety and protection in buildings, more cost-effective safety and protection measures and more options with regard to their choice and operation, and better communication with other disciplines involved in the construction sector. Most important is that the fire resistance has to be designed as per codal regulation and cannot be assumed.

Fire-related issues

     The building components should have the required fire resistance level.

     This is specified by the user or city ordinances or based on National Building Code regulations.

     The fire resistance level is specified in terms of duration (in minutes) that the element can stand when subjected to standard fire load. It will depend on:

• The purpose for which the structure is used

• The time taken to evacuate occupants in case of fire

     The members and connections in a structure should be such that they give a period of structural adequacy larger than the required fire resistance level.

Calculation of the period of structural adequacy involves:

• Calculation of the strength of the element as a function of temperature of the element and the determination of limiting temperature

• Calculation of the thermal response of the element, i.e. calculation of the variation of temperature of the element or part of the element with time when exposed to fire

• Determination of the period of structural adequacy at which the element or part of the element reaches the limiting temperature

The period of structural adequacy can be determined either analytically or through tests.

Fire resistance ratings

     The fire resistance ratings of various structural components such as walls, columns, beams and floors are given in ARE Codes.

     The ratings could be improved to the required level by protective coatings. The fire resistance ratings vary generally from one hour to about four. In codes, the stability criterion is the ability of a specimen of a load bearing element to support its test load, where appropriate, without exceeding the specified criteria with respect to either the extent of or rate of deformation or both. The test specimen is considered to have be failed if it:

• Exceeds a deflection of L/20

• Exceeds the rate of deflection of L2/9000d in 1 minute interval,

     where L = the clear span of the specimen and d = the distance from the top of the structural section to the bottom of the design tension zone (in mm).

     Integrity is the ability of a specimen of a separating element to contain a fire to the specified criteria for collapse, freedom from holes, cracks and fissures and sustained flaming on the unexposed face.


     Insulation is the ability of a specimen of a separating element to restrict the temperature rise of the unexposed face to below specified levels.

     By adopting proper guidelines, with regard to both material and structural levels, the loss of life and property in the case of a fire can be reduced


More on Anytimeproperty
City Based Properties
Useful Tools Property News Search Property Calculators Others
© 2019 Any Time Property All Rights Reserved. Home | About Us | Advertise | Testimonials | Help & Support | Contact Us | Careers | FAQ | Feedback | Sitemap
Privacy Policy | Terms and Conditions Developed by Snick Technologies