Masonry Magazine October 1998 Page. 14
Wall Height
ing at 6'8" and 108" above grade spaced 15 feet on centers when either Type M or S Portland Cement lime mortar is used. (See shaded portion of Table). Figure 2 shows a typical wall bracing layout using pipe braces with Figure 3 showing typical details that would apply to this bracing scheme. The Appendix has similar figures for wood and cable bracing schemes. Editors Note: Mario Cataniis Chairman of the Council for Masonry Bracing
| | | | | |
|------------------|--------|--------|--------|--------|
| | | **Type M/S** | | **Type N** |
| | **Height** | **Spacing** | **Height** | **Spacing** |
| 8' | not required | not required | not required | not required |
| 16' pipe or cable | not required | not required | not required | not required |
| 16" wood br | not required | not required | not required | not required |
| 24" pipe or cable | 16'-8" | 20' | 16'-0" | 20' |
| 24' wood br. | no good | no good | no good | no good |
| 32 pipe or cable | 16'-8", 24'-8" | 20 | 16'-0, 24'-0 | 20 |
Table 4. Reinforced CMU Wall Bracing Height/Spacing Summary for the Intermediate Period, ft
Note: (1) Braces shall be installed prior to the intermediate period at the top of the completed wall or at the limited heights listed above. (2) Brace heights are based on the initial period allowable stresses as given in the Standard.
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14 MASONRY-SEPTEMBER/OCTOBER, 1998
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