PROFIS ENGINEERING
Figure 5.3b. Figure 5.3c.
Figure
5.3b [ 43 ] illustrates what can be termed an“ irregular” or“ non-matrix” anchor layout consisting of four anchors that are aligned in a diamond pattern, but not aligned to form either a row or a column. Assume anchors 1, 2, 3 and 4 are located at different distances from the x- edge; therefore, no two anchors are aligned to form a column( green dashed lines) with respect to the x- edge. Similarly, assume anchors 1, 2, 3 and 4 are located at different distances from the y- edge; therefore, no two anchors are aligned to form a row( yellow dashed lines) with respect to the y- edge. When no anchors are aligned to form at least one row and / or one column, the band width approach is applicable.
Reference Figure 5.3c [ 43 ]. If shear concrete breakout was being considered for the x- edge, the band width with respect to this edge( green shaded rectangle) would be defined as:
band width in x direction =( 0.25)( distance in x direction between anchor 2 and anchor 3).
Band Width Approach – Concrete Breakout Towards the x- Edge( page 41) explains how band width calculations can be used when considering shear concrete breakout with respect to the x direction.
If shear concrete breakout was being considered for the y- edge, the band width with respect to this edge( yellow shaded rectangle) would be defined as:
band width in y direction =( 0.25)( distance in y direction between anchor 1 and anchor 4).
Band
Width Approach – Concrete Breakout Towards the y- Edge( page 40) explains how band width calculations can be used when considering shear concrete breakout with respect to the y direction.
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