ECFLANGEDBEAM - Reinforced Concrete Flanged Beam Design

This part of user manual describes how to use ECFLANGEDBEAM for the design of REINFORCED CONCRETE FLANGED BEAM. ECPlus applications are designed as wizard type which is a step by step guided input procedure. If you are new to ECPlus applications, click here for general guidance.

Prerequisites: The user is expected to have a basic understanding of foundation design concepts.
The minimum input data required to use this application is as follows:

• ❶ Dimension and Material Properties
• ❷ Concrete and Reinforcement Grades
• ❸ Allowable safety factors

Following sections are presented with various input pages of ECFLANGEDBEAM application with descriptions:

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Reinforced Concrete Flanged Beam module is available in British, European and American Standards.

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Dimensions

This page allows to enter dimensions of the reinforced concrete flanged beam.

Flange Type

Select the type of flange either ☉Flange T or ☉Flange L.

Dimensions

Section Width

Enter the width of the flanged beam.
↔ Range: 50 to 2500 mm (1 to 100 inches)

Section Depth

Enter the depth of the flanged beam.
↔ Range: 50 to 2500 mm (1 to 100 inches)

Maximum Flange Width

Enter the width of flange in flanged beam.
↔ Range: 50 to 5000 mm (1 to 100 inches)

Flange Depth

Enter the depth of the flange in flanged beam.
↔ Range: 50 to 600 mm (1 to 100 inches)

Distance between Zero Moments

Enter the distance between zero moments in flange.
↔ Range: 1000 to 25000 mm (40 to 400 inches)

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Reinforcement

This page allows to enter the reinforcement details such as cover, tension, compression and shear reinforcement details, based on selected Reinforcement Calculation.

Cover

Enter the cover for tension and compression reinforcement.

Effective Cover

When reinforcement calculation is set to   Program   or   Area   , enter the effective cover as input.

Effective Cover for Tension

Enter the effective cover for tension reinforcement.
↔ Range: 15 to 150 mm (0.6 to 6 inches)

Effective Cover for Compression

Enter the effective cover for compression reinforcement.
↔ Range: 15 to 150 mm (0.6 to 6 inches)

Clear Cover

When reinforcement calculation is set to   Diameter  , enter the clear cover as input.

Clear Cover for Tension

Enter the clear cover for tension reinforcement.
↔ Range: 15 to 150 mm (0.6 to 6 inches)

Clear Cover for Compression

Enter the clear cover for compression reinforcement.
↔ Range: 15 to 80 mm (0.75 to 10 inches)

Side Cover

Enter the clear cover for both sides reinforcement.
↔ Range: 15 to 80 mm (0.75 to 10 inches)

Tension

Enter the reinforcement details for tension portion.

Tension - Program

On selecting reinforcement calculation as   Program  , tension reinforcement will be calculated by the program.

Tension - Area

On selecting reinforcement calculation as   Area  , enter the area of tension reinforcement.

Area of Tension Reinforcement

Enter the total area of tension reinforcement.
↔ Range: 10 to 500000 mm² (0.4 to 20000 in²)

Tension - Diameter

On selecting reinforcement calculation as   Diameter  , select the number and size for tension reinforcement.

Number of bars

Select the number of bars from the dropdown.

Size of bar

Select the size of bar from the dropdown. Size of bar can also be entered manually.
↔ Range: 4 to 60 mm

Spacing between Layers

If more than one layer of reinforcement are provided, enter the spacing between two layers.
↔ Range: 0 to 100 mm

Compression

Enter the reinforcement details for compression portion.

Compression - Program

On selecting reinforcement calculation as   Program  , compression reinforcement will be calculated by the program.

Compression - Area

On selecting reinforcement calculation as   Area  , enter the area of compression reinforcement.

Area of Compression Reinforcement

Enter the total area of compression reinforcement.
↔ Range: 10 to 500000 mm² (0.4 to 20000 in²)

Compression - Diameter

On selecting reinforcement calculation as   Diameter  , select the number and size for compression reinforcement.

Number of bars

Select the number of bars from the dropdown.

Size of bar

Select the size of bar from the dropdown. Size of bar can also be entered manually.
↔ Range: 4 to 60 mm

Spacing between Layers

If more than one layer of reinforcement are provided, enter the spacing between two layers.
↔ Range: 0 to 100 mm

Reinforcement can be given upto three layers with two different size of bars on each layer.

Shear

Enter the reinforcement details for shear.

Shear - Program

On selecting reinforcement calculation as   Program  , shear reinforcement will be calculated by the program.

Shear - Area

On selecting reinforcement calculation as   Area  , enter the area of shear reinforcement.

Area of Shear Reinforcement

Enter the total area of shear reinforcement.
↔ Range: 10 to 500000 mm²/m (0.4 to 20000 in²/in)

Shear - Diameter

On selecting reinforcement calculation as   Diameter  , select the number of legs, diameter and spacing for shear reinforcement.

Number of Legs

Select the number of bars from the dropdown.

Diameter of Shear Reinforcement

Select the size of bar from the dropdown. Size of bar can also be entered manually.
↔ Range: 4 to 60 mm

Spacing between Stirrups

Enter the spacing between the consecutive stirrups.
↔ Range: 20 to 450 mm (1 to 20 in)

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Design Loads

This page allows to enter the load details for design.

Design Moment

Enter the design moment for the calculation of main reinforcement.
↔ Range: 1 to 10000 kNm (1 to 7000 kip-ft)

Design Shear Force

Enter the shear force for the calculation of shear reinforcement.
↔ Range: 0 to 10000 kNm (0 to 7000 kip-ft)

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Design Setting

Setting for various Design Data such as Concrete, Material and Safety Factors are presented in this section. This setting pop-up can be accessed by clicking the bottom panel below the left navigation.

Reinforcement Calculation

This popup allows to set Reinforcement Calculation, based on which Reinforcement input will be taken.

Area of reinforcement calculated by program

Area of reinforcement required will be calculated by the program itself.

Area of reinforcement verified by program

Area of reinforcement required will be calculated by the program and will be checked with the entered reinforcement area.

Rebar configuration verified by program

Area of reinforcement provided will be calculated based on the inputs and will be verified by the area of reinforcement required calculated by the program.

Materials - British

Enter the various material properties and safety factors in this popup.

Concrete Grade

↔ Range: 15 to 100 N/mm²

Main Reinforcement Grade / Shear Reinforcement Grade

↔ Range: 200 to 600 N/mm²

Aggregate Size

↔ Range: 5 to 60 mm

Concrete in Compression

↔ Range: 1 to 3

Concrete in Shear

↔ Range: 1 to 3

Reinforcement

↔ Range: 1 to 3

Materials - European

Enter the various material properties and safety factors in this popup.

Compressive Cylinder Strength

↔ Range: 12 to 100 N/mm²

Main Reinforcement Grade / Secondary Reinforcement Grade

↔ Range: 200 to 600 N/mm²

Aggregate Size

↔ Range: 5 to 60 mm

Modulus of Elasticity of Steel

↔ Range: 100000 to 300000 N/mm²

Concrete

↔ Range: 1 to 3

Reinforcement

↔ Range: 1 to 3

Materials - American

Enter the various material properties and safety factors in this popup.

Concrete Type

Select the concrete type from the drop down list from which concrete modification factor will be taken.

Concrete Grade

↔ Range: 2500 to 15000 psi

Main Reinforcement Grade

↔ Range: 40000 to 80000 psi

Concrete Modification Factor

↔ Range: 0.75 to 1

Aggregate Size

↔ Range: 0.2 to 2.4 in

Density of Reinforced Concrete

↔ Range: 90 to 160 lb/ft³

Modulus Elasticty of Steel

↔ Range: 15000 to 40000 ksi

Nation Annex

This popup allows to select options for national annex in case of European Standard.

Nation

Select the nation based on which the coefficient value to be considered. The available standards are Recommended, UK, Finland, Ireland, Malaysia, Norway, Singapore, Sweden and User Defined.

User Defined

Select this option to enter the coefficient values.

k1

↔ Range: 0.3 to 0.5

k2

↔ Range: 1 to 1.5

k3

↔ Range: 0.3 to 0.6

k4

↔ Range: 1 to 1.5

α_cc

↔ Range: 0.7 to 1.2

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Error Handling

Errors and Warnings are generated to prevent any inadvertent error in the input data. This section describes how to handle the errors and warnings. These errors are displayed at the bottom of the input page when the data in one or more input fields invalidate each other.