Abstract: A system for determining longitudinal moments in a one-way joist floor comprising a supporting girder includes at least one computer configured to determine boundaries of at least one equivalent frame, determine a longitudinal moment within a column-beam portion of the at least one equivalent frame based at least in part on a vertical rigidity of the supporting girder, the column-beam portion having at least one column, and determine a longitudinal moment within a lateral section of the at least one equivalent frame based on the longitudinal moment within the column-beam portion, and based at least in part on the vertical rigidity of the supporting girder, the lateral section being lateral to the column-beam portion.

Abstract: A method for fabricating a reinforced concrete beam which greatly increases the effectiveness of stirrups in contributing to shear resistance. The method for fabricating a reinforced concrete beam generally includes the steps of positioning a plurality of rebars parallel with respect to each other to form the internal reinforced frame of the beam. A plurality of stirrups may then be extended around the plurality of rebars to provide additional support. An equivalent spacing value is computed in terms of transverse spacing (sw), longitudinal spacing (sL) and effective depth (d) and efficiency is then maximized in light of practical considerations by varying the transverse spacing (sw), In a preferred embodiment, after calculating the longitudinal spacing (sL) of the stirrups and the effective depth (d) of the rebars, the stirrups are positioned within the rebars using a transverse spacing (sw) calculated by the following equation: s w = ( s L d ) 0.5 ? d .

Abstract: A method for fabricating a reinforced concrete beam which greatly increases the effectiveness of stirrups in contributing to shear resistance. The method for fabricating a reinforced concrete beam generally includes the steps of positioning a plurality of rebars parallel with respect to each other to form the internal reinforced frame of the beam. A plurality of stirrups may then be extended around the plurality of rebars to provide additional support. An equivalent spacing value is computed in terms of transverse spacing (sw), longitudinal spacing (sL) and effective depth (d) and efficiency is then maximized in light of practical considerations by varying the transverse spacing (sw), In a preferred embodiment, after calculating the longitudinal spacing (sL) of the stirrups and the effective depth (d) of the rebars, the stirrups are positioned within the rebars using a transverse spacing (sw) calculated by the following equation: s w = ( s L d ) 0.5 ? d .

Abstract: A system for determining longitudinal moments in a one-way joist floor comprising a supporting girder includes at least one computer configured to determine boundaries of at least one equivalent frame, determine a longitudinal moment within a column-beam portion of the at least one equivalent frame based at least in part on a vertical rigidity of the supporting girder, the column-beam portion having at least one column, and determine a longitudinal moment within a lateral section of the at least one equivalent frame based on the longitudinal moment within the column-beam portion, and based at least in part on the vertical rigidity of the supporting girder, the lateral section being lateral to the column-beam portion.