Page 106 - Forensic Structural Engineering Handbook

Section 718.0: based on ANSI A58.1-1972 Detailed design criteria • • Section 718.0: no change from 1975 but no technical changes from 1978 Section 916.0: no change from 1981 with modifications by the concrete industry provisions for new buildings (1991) • acceleration Ultimate structu

Earthquake Seismic map of zones based on past earthquakes Section 916.0: moved from an appendix to code body, Section 1113.0: requirements updated to ANSI A58.1-1982 Section 1113.0: changed seismic map from the zone map to zone/ground acceleration map per NEHRP 1988 Section 1612.0: complete rew

Sections 712.0-716.0: no change from 1972 Fifty-year mean recurrence wind velocity Section 912.0-915.0: no change from 1978 Section 912.0-915.0: no change from 1981 Updated to reflect ASCE 7-1988 requirements Added design methods for components

Wind Section 712.0-715.0: Based on ANSI A58.1-1972 • • Section 1112.0: requirements updated to ANSI A58.1-1982 Section 1112.0: no change from 1987 Section 1611.0: • • and cladding
Revisions to BOCA National Building Code, 1975–1993

Snow Based on ANSI A58.1-1972 Recurrence interval twenty five to one hundred years as a function of Snow drift provisions Section 711.0: no change from 1975 Section 911.0: no change from 1978 Section 911.0: no change from 1981 Section 1111.0: requirements updated to ANSI A58.1-1982 with modifi
Section 711.0: building use From McCluer.

TABLE 2.1 Code edition year 1975 • • • 1978 1981 1984 1987 1990 1993 Source:

2.11