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Composite Behavior

Tells the program to use either the precast section for shear, or the full composite height for shear. If the composite height is used for shear the minimum concrete strength is used.

Treat as Slab

If the member is being treated as a slab, it allows Vu to go up to phiVc before reinforcement is needed.

This option allows the user to apply ACI 318-14 7.6.3.1. Note that it does not check the height requirement of this provision.

Shear Horizontal

More information on these options can be found on Horizontal Shear.

Method

Can selected either the ACI General Method or the PCI Design Handbook method.

Shear Force Considered

For the ACI method only.
Shear force to be used in the computation of the horizontal shear stress. Total loading uses Vu when computing the horizontal shear force. Composite loading only uses all loads on the composite section.

Horizontal Shear Stress

For the ACI method only.

This option controls which method should be used for determining the horizontal shear stress. VQ/Ib is typically considered an elastic response where V/bd can be used for both elastic and elastic responses.

Use effective mu for shear friction

The effective coefficient of friction from the PCI Design Handbook will be used if checked. This is only valid if no load reversal is present.

Compression Steel

Additional steel in the slab. This steel is assumed to be yielding in compression and produces additional compression stress in the top slab.

Torsion

Method

Selected whether to use the ACI Method, Zia Hsu method (with plate bending near ends) or slender spandrel for handling torsion

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Transfer

Support Locations

Picking what boundary conditions to use for the transfer stage.

Compression Limits

Limits for compression.

Tension Limits

Limits for tension. If this value is exceeded, reinforcement will be required.

End Zone

The end zone limits for transfer are within the computed transfer length of the ends of the member.

Allowable Bar Stress

ACI Limit: Uses the minimum of 0.6 times the bar yield and 30 ksi as the allowable bar stress

PCI Recommendation: Uses the minimum of the bar yield and 60 ksi as the allowable bar stress.

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