With the Coupling Beam Parameters command, the design parameters used in the Concrete Coupling Beam Design, which are modeled together with Concrete Single Footing and Strip Foundation, are determined. Concrete cover, maximum and minimum reinforcement interval, etc. parameters are determined from the coupling beam parameters window.

Location of Coupling Beam Parameters Dialog

Ribbon menu Analysis and Design tab Design Parameters title under Coupling Beams Parameters by clicking the command Coupling Beams Parameters can be found in the dialogue.

Coupling Beam Parameters

It determines with parameters which criteria the program will comply with in concrete design and rebar placement stage.

Specifications

Concrete cover

It is the distance from the center of gravity of the tension or compression rebar in the coupling beam to the outer face of the concrete.

Min. tensile percentage

It is the parameter that determines the minimum rebar to be placed in the tensile zone in the coupling beam. Under no circumstances can the rebar be less than the limit set by this parameter.

Maximum percentage

It determines the upper limit of the tensile rebar to be placed on the coupling beam. Under no circumstances can the rebar exceed the limit specified by this parameter. If it is too much, the program will give the message "section is insufficient" for the coupling beam where the maximum strength is higher.

Min. B for double stirrup 

The coupling beam width is compared with this parameter. As long as the width of the coupling beam does not exceed the minimum width specified in this parameter, the tie beams are reinforced with a double arm stirrup. Otherwise, they are equipped with 2 double-armed stirrups.

H for body reinforcement

If the height of the coupling beam is more than the value specified in this parameter, the web rebar is placed on the beam.

Min. stirrup interval

The spacing of the stirrup to be placed on the coupling beam is chosen not to be less than the value specified in this parameter.

Max. stirrup interval

The spacing of the stirrup to be placed on the coupling beam is chosen not to be more than the value specified in this parameter.

Max. mounting interval

It has no function for coupling beam.