RR 22.01.00-3.3 ASCE 7 Seismic Irregularities Checks
STAAD.Pro can now check for vertical and plan irregularities per the ASCE 7 05, 10, and 2016 codes for structures with defined rigid floor diaphragms.
ASCE 7-05/10/16については、水平方向の不規則性(ねじりおよび凹角コーナー)と垂直方向の不規則性(質量)をチェックすることができます。このコードでは、不規則モードの振動は考慮されません。
ASCE 7の出力例
ASCE 7-2016の地震の不規則性チェックに関する出力セクションの例:
STAAD.PRO IRREGULARITIES CHECK - ( ASCE7-2016 ) v1.0 ***************************************************** --TORSION IRREGULARITY CHECKS Torsion Irregularity Check Ref: Fig. C12.3-1 T1- Ratio Limit(s): 1.20, 1.40 ------------------------------------------------ Dia. Extreme Points of Dia in X Extreme Points of Dia in Z Node Disp. Node Disp. Node Disp. Node Disp. (mm) (mm) (mm) (mm) ------------------------------------------------------------------------ 1 3 0.09130 1 0.09993 4 0.09484 1 0.10559 2 15 0.29636 13 0.30993 16 0.29819 13 0.34410 Diaphragm ΔX-max/avg ΔZ-max/avg Status -------------------------------------- 1 1.0451 1.0537 OK 2 1.0224 1.0715 OK --GEOMETRY IRREGULARITY CHECKS Re-Entrant Corner Check. (Ref: Fig. C12.3-1 T2- Ratio Limit: 0.15 ) ------------------------------------------ Node Re-Entrant X-Proj X-Proj/Lx Z-Proj Z-Proj/Lz Status Connectivity Node ( m) ( m) ---------------------------------------------------------------------- 6-> 5 0.0000 0.0000 7.0000 0.7778 Re-Entrant 4 1.0000 0.2000 0.0000 0.0000 18-> 17 0.0000 0.0000 7.0000 0.7778 Re-Entrant 16 1.0000 0.2000 0.0000 0.0000 Diaphragm: Lx: Lz: ( m) ( m) ---------------------------- 1 5.0000 9.0000 2 5.0000 9.0000 --MASS IRREGULARITY CHECKS Mass Irregularity Check Ref: Fig. C12.3-2 T2- Ratio Limit: 1.50 --------------------------------------- Dia. Level Mass Above Below Ratio Ratio Status ( m) ( kN) ( kN) ( kN) Above Below --------------------------------------------------------------------- 1 0.000 341.643 253.287 Base 1.349 N/A OK 2 5.000 253.287 Top 341.643 N/A 0.741 OK