B a n g l a d e s h Bangladesh National Building Code (BNBC)

B a n g l a d e s h

Bangladesh National Building Code (BNBC) 2006 Ministry of Works Editorial note: According to the information provided by the national delegate, the codes have not been changed since 1993, and have enhanced in 2006 and will be revised in 2009. Earthquake Resistant Design part of the code is in the World List 2008.

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Comments on Building Codes

1. General a. Name of Country: Bangladesh b. Name of Codes: Bangladesh National Building Code (BNBC) Earthquake Resistant Design part of the code is attached as pdf file. --- in English --- in Original Language c. Issued by: Ministry of Works d. Enforcement Year: 2006 2. Structural Design Method a. Format: (please check) √□ Working Stress Design : Allowable Stress ≧ Actual Stress √□ Ultimate Strength Design: Ultimate Member Strength ≧ Required Member Strength □ Limit State Design : Ultimate Lateral Strength ≧ Required Lateral Strength □ Other Design Method : (comment) b. Material Strength (Concrete and Steel): The working stress design for all loading limits the allowable stress of concrete to be 0.45 of the specified concrete strength, and that of steel to be approximately 0.5 of the specified yield strength. c. Strength Reduction Factors: Are used. See Equation 2.5.1 (Page 6-53) and Table 6.2.24 (Page 6-54). d. Load Factors for Gravity Loadings and Load Combination: These factors are provided in article 2.7.4 and 2.7.5 (Page 6-68 and 6-69) e. Typical Live Load Values: Office Buildings : 3.0 kN/m2 Residential Buildings: 2.0 kN/m2

f. Special Aspects of Structural Design Method Details of Masonry structures are provided in Chapter 4 Details of reinforced concrete structures are provided in Chapter 8 Details of steel structures are provided in Chapter 10

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