Calculator

Height of section at midspan of beam(mm):

Width of section at midspan of beam(mm):

Distance from extreme compression fiber to centroid of longitudinal tension steels at midspan of beam(mm):

Modulus of elasticity of concrete(MPa):

Modulus of rupture of concrete(MPa):

Number of longitudinal tension steels at midspan of beam:

Diameter of longitudinal tension steels at midspan of beam(mm):

Modulus of elasticity of steel(MPa):

Span length of beam(mm):

Uniform distributed dead load(N/mm):

Uniform distributed live load(N/mm):

Percentage of sustained live load:

Type of member before attachment of the nonstructural elements:
(Note: For flat roofs not supporting or attached to nonstructural elements likely to be damaged by large deflections, enter 1 | For floors not supporting or attached to nonstructural elements likely to be damaged by large deflections, enter 2)

Type of member after attachment of the nonstructural elements:
(Note: For roof or floors supporting or attached to nonstructural elements likely to be damaged by large deflections, enter 1 | For roof or floors supporting or attached to nonstructural elements not likely to be damaged by large deflections, enter 2)

Sustained load duration:
(Note: For 60 months or more, enter 1 | For 12 months, enter 2 | For 6 months, enter 3 | For 3 months, enter 4)

Sum of immediate deflection due to live loads plus sustained portion of deflections due to dead load and any sustained live load(mm):

Immediate deflection due to sustained live load(mm):

Immediate deflection due to dead load and sustained live load(mm):

Immediate deflection due to live load(mm):

Immediate deflection due to dead load(mm):

Immediate deflection due to dead and live load(mm):

Input

Output

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