🌍 Standard + ⊕ Seismic + 🌬 Wind
Country / Standard
🇹🇭 Thailand — Ministerial Reg. 2566 · DPT 1301/1302 · 1311
🇵🇭 Philippines — NSCP (AISC 360 · ASCE 7)
🇮🇩 Indonesia — SNI 1729/1727/1726 (AISC 360 · ASCE 7-16)
🇺🇸 USA — AISC 360-22 · ASCE 7-22 (LRFD/ASD)
🇲🇾 Malaysia — MS EN 1993 · EN 1990/1991/1998 (ULS/SLS)
🇵🇰 Pakistan — BCP 2021 (AISC 360-16 · ASCE 7-16)
🇧🇩 Bangladesh — BNBC 2020 (AISC · EC8-spectrum)
🇮🇳 India — IS 800:2007 LSM · IS 875 · IS 1893
🇻🇳 Vietnam — TCVN 5575:2024 (SP16) · 2737:2023 · 9386
🇨🇦 Canada — CSA S16:24 (LSD) · NBCC 2020
🇦🇺 Australia — AS 4100:2020 · AS/NZS 1170 · AS 1170.4
🇲🇽 Mexico — AISC 360 · ASCE 7-22 (project spec)
🇸🇦 Saudi Arabia — SBC 306 (AISC 360) · SBC 301-2007 (ASCE 7-02/05) ⚠ verify vs 2024
🇬🇧 United Kingdom — BS EN 1993-1-1 / UK NA (γM2=1.10)
🇩🇪 Germany — DIN EN 1993-1-1 / NA (γM1=1.10)
🇫🇷 France — NF EN 1993-1-1 / NA · NF EN 1998 seismic
🇪🇸 Spain — EAE (EN 1993 · γM0=1.05) · NCSE-02 seismic
🇳🇴 Norway — NS-EN 1993 (γM0=1.05) · NS-EN 1998 seismic
🇨🇭 Switzerland — SIA 263 (EN 1993 · γM0=1.05) · SIA 261 seismic
🇸🇬 Singapore — SS EN 1993 (UK NA · γM2=1.10) · BC3:2013 seismic
🇳🇱 Netherlands — NEN-EN 1993-1-1 / NB
🇵🇱 Poland — PN-EN 1993-1-1
🇸🇪 Sweden — SS-EN 1993-1-1 / EKS (γM2=1.20)
🇫🇮 Finland — SFS-EN 1993-1-1 / NA
🇩🇰 Denmark — DS/EN 1993-1-1 DK NA (γM0=1.10)
🇱🇰 Sri Lanka — EN 1993-1-1 (wind-governed)
🇺🇾 Uruguay — AISC 360 · UNIT 50 wind
🇵🇾 Paraguay — AISC 360 · NP 196 wind
🇧🇷 Brazil — ABNT NBR 8800:2008 (nominal=AISC · γa1=1.10/γa2=1.35)
🇵🇪 Peru — E.090 (AISC 360) · E.030:2018 seismic
🇪🇨 Ecuador — NEC-SE-AC (AISC 360) · NEC-SE-DS seismic
🇨🇱 Chile — NCh427 (AISC 360) · NCh433+DS61 seismic
🇨🇴 Colombia — NSR-10 Tít.F (AISC 360) · NSR-10 Tít.A seismic
🇦🇷 Argentina — CIRSOC 301 (AISC 360) · INPRES-CIRSOC 103 seismic
🇨🇷 Costa Rica — AISC 360 · CSCR-2010 seismic
🇳🇵 Nepal — AISC 360 · NBC 105:2020 seismic
🇮🇹 Italy — EN 1993-1-1 (γM0=1.05) · NTC 2018 seismic
🇧🇴 Bolivia — NB 1225004 (AISC 360) · GBDS-2020 seismic
🇳🇿 New Zealand — AISC 360 · NZS 1170.5 seismic
Seismic method (PH)
NSCP 2015 — UBC-97 (verified)
NSCP 2025 — ASCE 7 (⚠ pending)
Zone Z (IS 1893) Zone II — 0.10 Zone III — 0.16 Zone IV — 0.24 Zone V — 0.36
Soil type I — Rock/hard II — Medium III — Soft
Zone Z (BNBC) Zone 1 — 0.12 Zone 2 — 0.20 Zone 3 — 0.28 Zone 4 — 0.36
Soil class (BNBC) SA — Rock SB SC SD SE — Soft
Buckling curve (SP16) a — I major axis/box b — I minor axis/welded c — high residual
γc working condition
🇻🇳 Column uses SP16 (verified) · beam/rafter/purlin: choose EC3 (SP16 bending added later)
Z (city · Table 3.2) Sydney/Melb/Canberra 0.08 Perth 0.09 Adelaide 0.10 Brisbane 0.05 Darwin 0.03
kp (probability) 1/500 — 1.0 1/1000 — 1.3 1/1500 — 1.5
Ch (T) — ชั้นดิน (Table 6.4) Ae strong rock 2.35 Be rock 2.94 Ce shallow 3.68 De deep 3.68 Ee soft 3.68
ระบบ Sp /μ (Table 6.5A) Ordinary MRF (0.385) Intermediate (0.223) Special MRF (0.168) Non-ductile (0.77)
αb (หน้าตัดอัด · Table 6.3.3) −1.0 HF RHS/CHS −0.5 CF RHS/CHS 0 HR UB/UC · box +0.5 channel/angle/tee +1.0 welded H/I
🇦🇺 V=[kp ·Z·Ch ·Sp /μ]·Wt (AS 1170.4:2007) · คอลัมน์ AS 4100 αc · คาน/จันทัน/แป เลือก EC3/LRFD
Z (zone · Table 1) Z4 — 0.45 Z3 — 0.35 Z2 — 0.25 Z1 — 0.10
Soil S (Table 3) S0 hard rock S1 rock/dense soil S2 medium S3 soft
U (uso · Table 5) A esencial — 1.5 B importante — 1.3 C común — 1.0
R₀ steel (Table 7) SMF — 8 EBF — 8 SCBF — 7 IMF — 5 OMF/OCBF — 4
CT (T=hn /CT ) 35 pórtico acero 45 arriostrado 60 muros
🇵🇪 V=(Z·U·C·S/R)·P · C/R≥0.11 (E.030:2018 · R=R₀·Ia·Ip enter R₀) · steel AISC 360
Z (zone · Table 1) I — 0.15 II — 0.25 III — 0.30 IV — 0.35 V — 0.40 VI — ≥0.50
η (region) Costa — 1.80 Sierra — 2.48 Oriente — 2.60
Soil (A–E) A B C D E
R steel Dúctil (SMF/braced/EBF) — 8 Cold-formed (≤2 storeys) — 2.5
🇪🇨 V=[I·Sa/(R·φPφE)]·W · Sa=η·Z·Fa · Ta=Ct·hn α (NEC-SE-DS:2015) · เหล็ก AISC 360
A₀ (zone · Table 6.2) Zona 3 — 0.40g Zona 2 — 0.30g Zona 1 — 0.20g
Soil (A–E · Table 6.3) A hard rock B rock C shallow/dense D medium E soft
I (categoría · Table 6.1) IV esencial — 1.2 III — 1.2 II normal — 1.0 I menor — 0.6
R steel (Table 5.1) SMF especial — 7 STMF/EBF — 6 SCBF — 5.5 IMF — 5 OMF — 4 OCBF — 3
🇨🇱 Q₀=C·I·P · C=2.75·S·(A₀/g)·(T'/T*)ⁿ/R · clamp[S·A₀g/6, Cmax(R)·S·A₀g] (NCh433+DS61 · T*≈0.072H^0.8 preliminary) · steel AISC
Aa (Table A.2.3-2) 0.10 (Barranquilla) 0.15 (Bogotá/Medellín) 0.20 (Ibagué) 0.25 (Cali) 0.35 (Cúcuta)
Av (Table A.2.3-2) 0.10 0.20 (Bogotá) 0.25 (Cali) 0.30 (Cúcuta) 0.35 (Quibdó)
Soil (A–E · Table A.2.4) A B C D E
R₀ steel (Título F) SMF DES — 7 EBF/BRB — 6 SCBF/IMF — 5 CBF DMI — 4 OMF DMI — 3
I (grupo · A.2.5) IV — 1.5 III — 1.25 II — 1.1 I — 1.0
🇨🇴 Sa=2.5·Aa·Fa·I (plateau) → Vdiseño =Sa·W/R · Ta=0.072·hn ^0.8 (NSR-10 Tít.A · R=R₀ ถ้า regular) · เหล็ก AISC
Zona (Anexo A) 4 muy elevada (San Juan) 3 elevada (Mendoza) 2 moderada 1 reducida (Bs.As.)
Tipo espectral (suelo) Tipo 1 — SA/SB/SC roca/firme Tipo 2 — SD intermedio Tipo 3 — SE blando
γr (destino · §2.4) Ao esencial — 1.5 A importante — 1.3 B ordinario — 1.0 C menor — 0.8
R steel (Table 5.1) SMF/EBF especial — 7 MF truss/dual — 6 SCBF especial — 5 IMF intermedio — 4.5 OMF/braced conv — 3
🇦🇷 V=C·W · C=2.5·Ca·γr/R (T≤T2) · Sa·γr/R (T>T2) · floor · Ta=0.0724H^0.8 (INPRES-CIRSOC 103) · steel AISC
Zona (Fig 2.1) II III (San José) IV (Pacífico)
Sitio S (Table 2.2) S1 roca S2 denso S3 medio/blando S4 muy blando
μ ductilidad (Table 4.3) 6 marco a (SMF) 4 dual a 3 marco b/muro a 2 marco d 1.5 OMF/OCBF (máx) 1 otros
SR (sobrerresistencia) 2.0 marco/dual/muro 1.2 voladizo/otros
I (importancia · Table 4.1) A/B esencial — 1.25 C/D normal — 1.0 E misc — 0.75
🇨🇷 V=C·W · C=(aef·I·FED)/SR · FED=2.5/√(2μ−1) plateau · Tc velocity branch · T=0.12N (CSCR-2010) · steel AISC
Z (zone · Table 4-5) 0.40 (Bharatpur/Hetauda) 0.35 (Kathmandu) 0.30 (Pokhara/Janakpur) 0.25 (Jomsom/Simikot)
Soil (A–D · Table 4-1) A stiff B medium C soft D very soft (KTM valley)
I (importance · Table 4-6) III hospital/emergency — 1.5 II school/assembly — 1.25 I general — 1.0
Rμ steel (Table 5-2) SMF/EBF/BRB — 4 (Ωu1.5) CBF dual — 3.5 (Ωu1.4) CBF — 3 (Ωu1.3)
🇳🇵 V=Cd·W · Cd=Ch·Z·I/(Rμ·Ωu) · Ch=α plateau · T1=1.25·0.085H^0.75 (NBC 105:2020 · ESM Ta=0 · KTM valley=soil D) · steel AISC
ag,Fo,Tc* (INGV · area) L'Aquila ~0.26g (high) Napoli ~0.15g (medium) Roma ~0.11g (medium) Milano ~0.05g (low) Sardegna ~0.04g (lowest)
Soil (A–E · Tab 3.2.II) A roccia B C D E
q (fattore struttura · Tab 7.3.II) MRF CD"A" multi — 6.5 MRF CD"A" single — 5.0 MRF/EBF CD"B" / CBF-X — 4.0 CBF-V CD"A" — 2.5 CBF-V CD"B" — 2.0
🇮🇹 Fh=Sd(T1)·W·λ · Sd(η→1/q) · floor 0.2ag · S=SS·ST · TC=CC·Tc* (NTC 2018 · ⚠ T1=0.085H^0.75 EC8-est · actual 2√d) · steel EN 1993 (γM0=1.05)
S₀ (PGA · city · PSHBO-2019) Santa Cruz ~0.20 Cochabamba ~0.16 La Paz/Potosí ~0.13 Tarija ~0.07 Trinidad/Cobija ~0.05
Soil (S0–S4 · Table 5-1) S0 roca dura S1 roca S2 rígido S3 medio S4 blando
Ie (importancia · Table 3-1) IV esencial — 1.5 III — 1.3 II normal — 1.0
R₀ steel (Table 7-1) SMF/EBF — 8 SCBF — 7 IMF — 5 OMF/OCBF — 4 cold-formed — 3
🇧🇴 V=Cs·W · Cs=2.5·Fa·S₀/(R/Ie) · cap 1.5·Fv·S₀/(T·R/Ie) · floor 0.11·Fa·S₀·Ie (GBDS-2020 · ASCE-7 · Ta=0.0724H^0.8) · steel AISC
Z (city · Table 3.3) Wellington 0.40 Christchurch 0.30 Auckland/Dunedin 0.13 Otira/Arthur's 0.60
Soil (Ch · Table 3.1) A/B rock C shallow D deep/soft E very soft
R (return · IL · Table 3.5) IL2 1/500 — 1.0 IL3 1/1000 — 1.3 IL4 1/2500 — 1.8 IL1 1/250 — 0.75
μ ductility (NZS 3404) Ductile MRF/EBF — 4 CBF ductile — 3 Limited-ductile — 2 Nominally-ductile — 1.25
🇳🇿 V=Cd·W · Cd=Ch·Z·R·N·Sp/kμ · Sp=1.3−0.3μ (≥0.7) · Z·R≤0.7 · floor (Z/20+0.02)R (NZS 1170.5 · ESM T1≥0.4) · steel AISC
ab (aceleración · Anejo 1) 0.24g Granada (alta) 0.16g Málaga/Murcia 0.12g moderada 0.08g Alicante 0.04g mínima
Suelo (I–IV · Table 2.1) I roca (C1.0) II (C1.3) III (C1.6) IV blando (C2.0)
ρ (importancia · §2.2) especial — 1.3 normal — 1.0
μ ductilidad (§3.7.3) 4 pórtico dúctil (β0.25) 3 X-braced (β0.33) 2 (β0.50) 1 sin ductilidad (β1.0)
K (contribución · Anejo 1) 1.0 (mayoría de España) 1.3 (Cádiz/Huelva SW)
🇪🇸 Cs=(ac/g)·α·β · ac/g=S·ρ·ab · β=ν/μ (Tabla 3.1 acero) · TB=KC/2.5 · TF=0.11n (NCSE-02) · steel EN 1993 (γM0=1.05)
Zone (Arrêté 22/10/2010) 5 forte 3.0 (Antilles) 4 moyenne 1.6 (Nice/Alpes) 3 modérée 1.1 (Alsace) 2 faible 0.7 1 très faible 0.4 (Paris)
Sol (A–E) A rocher B C D E
γI (catégorie) IV — 1.4 III — 1.2 II — 1.0 I — 0.8
q (comportement · EC8 Tab 6.2) DCH MRF — 6.5 DCM MRF/X-braced — 4 V-braced DCM — 2 DCL — 1.5
🇫🇷 Fb=Sd(T1)·W·λ · zone 1-4→Type2, zone 5→Type1 · agr m/s²→g · Ta=0.085H^0.75 (NF EN 1998) · steel EN 1993
agR (m/s² · city · 40Hz) Oslo/W-coast 0.55 SE Norway 0.45 interior 0.30 north/low 0.20
Grunn (A–E · NA) A berg B C D E
γI (klasse) IIIb — 1.7 IIIa — 1.25 II — 1.0 I — 0.7
q (duktilitet · DCL/DCM) DCL — 1.5 (typisk NO) DCM MRF/X — 4 DCM V-braced — 2
🇳🇴 Fb=Sd·W·λ · ⚠ ag=0.8·agR·γI (agR m/s²·×0.8 NA.3.2.1) · TD=1.2 all grunn · Ta=0.085H^0.75 (NS-EN 1998) · steel EN 1993
Zone (agd · 16.2.1) Z3b 1.6 (Basel/Valais) Z3a 1.3 Z2 1.0 Z1 0.6 (Zürich/Bern/Genève)
Baugrund (A–E · Table 25) A Fels B C D E
γf (BWK · Table 26) III — 1.4 II — 1.2 I — 1.0
q (Verhalten · SIA 263) nicht-dissipativ — 1.5 dissipativ MRF/braced — 4 V-braced — 2
🇨🇭 Fd=Sd·W · Sd=2.5·γf·(agd/g)·S/q (plateau) · floor 0.1·γf·agdg · agd m/s²→g · Ta=0.085H^0.75 (SIA 261:2003) · steel EN 1993
Ground (A–E · SG NA Type 1) A rock B C D soft (Kallang clay) E
γI (importance) Special (hospital) — 1.4 Ordinary — 1.0
q (behaviour · SG NA) Steel low-diss (DCL) — 2.0 Concrete/generic — 1.5
🇸🇬 Fb=Sd·W·λ · agR=0.175 m/s² (whole island · far-field Sumatra) · ⚠ required only for H>20m + soil D/S1 · S1=site-specific (BC3:2013 · SS EN 1998) · steel EN 1993
Force-resisting system R
Non-special steel — R=3
Ordinary moment frame — R=3.5
Intermediate moment frame — R=4.5
Special braced frame — R=6
Special moment frame — R=8
Importance I
1.00 — Category 1/2 1.25 — Category 3 1.50 — Category 4
Wind zone (V50)
Zone 1 — Bangkok/Central (25) Zone 2 (27) Zone 3 (29) Zone 4 — South (30)
Terrain
A — Open/coastal B — Suburban/urban
Cp net suction
⚠ Preliminary — V=Cs·W is a building-level value (per-member force distribution requires a frame analysis such as PEB/Truss). Must be verified by an engineer.