The document provides calculations to determine a preliminary circular hollow structural section (HSS) profile that can support compression given certain conditions. It calculates values like effective length, buckling stress, and compressive strength. Based on the provided calculations and strength requirements, it determines that an HSS 10x0.625 profile meets the criteria and is the most economical choice.

1. CM = 120
CV = 110
CW = 134
CS = 75
FY = 42
FU = 58
LONGITUD = 12
KX = 0.8
Ky = 0.8
KL/R = 60
E = 29000
C1 = 1.4D 168
C2 = 1.2D+1.6L 320
C3 = 1.2D+1.6W+L 468.4
C4 = 1.2D+1E+L 329
C5 = 0.9D+1.6W 322.4
C6 = 0.9D+E 183
USAR =
FE = (π)^2 * E / ( KL/R)^2
FE = 79.51
123.76
FCR = 0.658 ^(FY / FE)*FY
FCR = 33.88
Pu ≥ Øpm
Ø = 0.90
AG = 15.36
El perfil a elegir tiene
que tener mas area
que esta
Si KL /R = 60
despejar
r min = 1.92
El perfil a elegir tiene
que tener mas radio
que este
AG r W (peso)
12.750 0.500 HSS12.75X0.5 17.9 4.35 65.5
las que cumplen
HSS
VALORES LIMITES
TENSION CRITICA DE PANDEO
DETERMINAR SECCION PRELIMINAR
EL PERFIL HSS CIRCULAR MAS ECONOMICO PARA LAS SIGUIENTES CONDICIONES PARA
QUE SOPORTE LA COMPRECION.
Combinaciones
468.4
4.71 RAIZ (e/FY)

2. 16.000 0.375 HSS16X0.375 17.2 5.53 62.6
10.000 0.625 HSS10X0.625 17.2 3.34 62.6
11.250 0.500 HSS11.25X0.5 15.8 3.82 57.5
AG r W (peso)
HSS10X0.625 15.8 3.82 57.5
KL / R = 30.16
FE = 314.72
VALOR LIMITE = 123.76
FCR = 39.72
PU = 564.79 MAYOR A 468.4
OD/T (tablas) 17.2
ʎ=0.11*E/FY
ʎ= 75.95
D/T < ʎ = NO COMPACTA
D/T > ʎ = ESBELTA
ʎ < D/T < ʎ = COMPRESION
PU = ØPM
CHEQUEA
REVISAR LA SECCION COMPUESTA
USAR =
HSS