1 / 12

THE BUILDING ENVELOPE: Lecture 3

THE BUILDING ENVELOPE: Lecture 3. Building Codes and Standards. MODEL BUILDING CODES. Establish standard of practice Represent “minimum” standards Must be adopted by local authority to be “legal”. MODEL BUILDING CODES. April 2000 : Uniform Building Code Standard Building Code

kory
Download Presentation

THE BUILDING ENVELOPE: Lecture 3

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. THE BUILDING ENVELOPE: Lecture 3 Building Codes and Standards

  2. MODEL BUILDING CODES • Establish standard of practice • Represent “minimum” standards • Must be adopted by local authority to be “legal”

  3. MODEL BUILDING CODES April 2000: Uniform Building Code Standard Building Code BOCA/Basic Building Code became The International Building Code

  4. INTERNATIONAL BUILDING CODE • One national consensus model code • Based on national consensus standard (ASCE 7) • Will become standard of practice in foreseeable future as local jurisdictions formally adopt the IBC

  5. INTERNATIONAL RESIDENTIAL CODE • Replaces CABO “One- and Two-Family Dwelling Code” • Residential buildings where V > 110 mph must be designed for loads in ASCE 7 • Requires that ~ one-half of new residential buildings in U.S. be “engineered”

  6. ASCE 7 • “Minimum Design Loads for Buildings and Other Structures” (ASCE, 2002) • National consensus standard • Captures modern wind engineering technology • Addresses factors judged to affect significantly the pressures that act on buildings in windstorms

  7. ASCE 7: FACTORS THAT AFFECT PRESSURE • wind speed (V) • terrain (Kz) • topography (Kzt) • wind direction (Kd) • wind gusts (G) • building geometry (Cp) • relative importance of the building (I).

  8. NATIONAL CONSENSUS STANDARDS ASCE 7: Minimum Design Loads ASTM: Wind Borne Debris AISC/AISI: Steel Construction ACI: Reinforced Concrete NFPA: Timber Construction NCMA: Concrete Masonry MBMA: Metal Buildings AAMA: Architectural Glazing

  9. LOCAL BUILDING CODES Formal enactment of laws or ordinances are necessary for legal enforcement of Local Building Codes • State Building Codes • County Building Codes • Municipal Building Codes • Insurance Building Codes

  10. PERFORMANCE AND PRESCRIPTIVE CODES Performance Codes: Require the designer to meet specific performance standards (e.g., a specific design wind speed) Prescriptive Codes: Prescribe construction details for the builder (i.e., if the builder conforms the building is deemed to be in compliance)

  11. THE "EITHER/OR" OPTION • The IRC and ASCE 7 offer the designer an two options: Design for (1) windborne debris (i.e. window protection) or (2) for internal pressure • Many designers opt for Option 2 • Option 2 is often short sighted

  12. BEYOND CODE MINIMUMS • IBC/IRC and ASCE 7 establish minimum requirements • Designer has responsibility to assess special project conditions that may warrant attention beyond code minimums • Special design requirements may be established

More Related