NEN6702#7.1(Index)
Dead load for structural elements according NEN6702#7.1
Parameters:
|
Index |
- |
roof form factor Cs = C1 or C2 for snow load according to NEN6702#B |
Returns: Dead load [kN/m2]
NEN6702#8.2(BuildingType, ElementCategory)
Imposed load for buildings: concentrated load fk[kN] or distributed load qk [kN/m2] according to NEN6702#8.2
Parameters:
|
BuildingType |
- |
building category |
|
ElementCategory |
- |
building subcategory |
|
Load |
- |
concentrated/distributed imposed load |
Returns: fk [kN], qk[kN/m2]
NEN6702#8.2.5.2(Val)
Distributed load Prep or concentrated load Frep or line load Qrep for roofs according to NEN6702#8.2.5.2
Parameters:
|
Val |
- |
roof inclination angle [°] |
Returns: Prep [kN/m2] or Frep [kN/m2]
NEN6702#8.6.1.3(n1, n2, n3, n4, n5)
Wind load Prep according to NEN6702#8.6.1.3
Parameters:
|
n1 |
- |
building dimensions factor Cdim according to NEN6702#8.6.3 |
|
n2 |
- |
wind form factor Cindex (Cpe according to NEN6702#8.6.4.1, 8.6.4.2 and 8.6.4.6; Cpe;loc according to NEN6702#8.6.4.3; Cpi according to NEN6702#8.6.4.4; Cf according to NEN6702#8.6.4.5; Ct according to NEN6702#8.6.4.2 and 8.6.4.6) |
|
n3 |
- |
wind pressure-equalizing factor Ceq according to NEN6702#8.6.5 |
|
n4 |
- |
dynamic wind influence factor Fi1 according to NEN6702#8.6.6 |
|
n5 |
- |
extreme wind pressure Pw [kN/m2] according to NEN6702#8.6.2 |
Returns: Prep [kN/m2]
NEN6702#8.6.2(z, gebied, bebouwd)
Extreme wind pressure Pw according to NEN6702#8.6.2, NEN6702#A.1
Parameters:
|
z |
- |
height above contiguous area [m] |
|
gebied |
- |
wind zone number for the Netherlans according to NEN6702#A.1 |
|
bebouwd |
- |
"bebouwd" for urban area, "onbebouwd" for suburban area |
Returns: Pw [kN/m2]
NEN6702#8.6.3(h, br)
Calculating factor Cdim related to the building dimensions for buildings with a rectangular projection according to NEN6702#8.6.3, NEN6702#A2
Parameters:
|
h |
- |
numerical value of vertical dimension - building height [m] |
|
br |
- |
numerical value of the building width [m], measured perpendicular to the wind direction |
Returns: Cdim
NEN6702#8.6.4.1.FIG.A.4(str)
Wind form factor Cpe for buildings facades with rectangular ground plan (for parts with an area greater than 10 m2) according to NEN6702#8.6.4.1, NEN6702#A3, Fig. A.4
Parameters:
|
str |
- |
"+" Left side, in case wind from left "-" Right side, in case wind from right "<b" Left/Right side, in case wind from front and frame is in front side ">b" Left/Right side, in case wind from front and frame is in back side |
Returns: Cpe
NEN6702#8.6.4.2.FIG.A.6(str)
Wind form factor Cpe for buildings roofs with rectangular ground plan and roof inclination angle less than 10° (for parts with an area greater than 10 m2) according to NEN6702#A3, Fig. A.6
Parameters:
|
str |
- |
"<h" - case frame is located on front side of building on distance <h ">h" - case frame is located on front side of building on distance >h |
Returns: Cpe
NEN6702#8.6.4.2.FIG.A.7(str)
Wind form factor Cpe for buildings roofs with rectangular floor plan (for parts with an area greater than 10 m2) according to NEN6702#A3, Fig. A.7
Parameters:
|
str |
- |
"+" - in case wind pressure "-" - in case wind suction |
|
Val |
- |
roof inclination angle [°] |
Returns: Cpe
NEN6702#8.6.4.2.FIG.A.8A(alfa, str)
Wind form factor Ct for 1-sided sloping roofs according to NEN6702#A3, Fig. A.8a
Parameters:
|
alfa |
- |
roof inclination angle [°] |
|
str |
- |
"+" - in case wind pressure "-" - in case wind suction |
Returns: Ct
NEN6702#8.6.4.2.FIG.A.8B(alfa, str)
Wind form factor Ct for 2-sided sloping roofs according to NEN6702#A3, Fig. A.8b
Parameters:
|
alfa |
- |
roof inclination angle [°] |
|
str |
- |
"+" - in case wind pressure "-" - in case wind suction |
Returns: Ct
NEN6702#8.6.4.4(str, Param1, Param2, Param3)
Wind form factor Cpi for over/underpressure
Parameters:
|
str |
- |
"+" - in case wind overpressure "-" - case wind underpressure |
|
Param1 |
- |
left opening |
|
Param2 |
- |
right opening |
|
Param3 |
- |
wind left |
Returns: Cpi
NEN6702#8.6.4.5(rowness)
Wind friction factor Cf according to NEN6702#8.6.4.5
|
rowness |
- |
roughness height [mm] |
Returns: Cf
NEN6702#8.6.5()
Wind pressure-equalizing factor Ceq according to NEN6702#8.6.5
Parameters:
|
none |
Returns: Ceq = 1
NEN6702#8.6.6(h, br, mat, MassaType, delta)
Dynamic wind influence factor Fi1 according to NEN6702#8.6.6, NEN6702#A4
Parameters:
|
h |
- |
numerical value of building height [m] |
|
br |
- |
numerical value of the average building width [m] perpendicular to wind direction |
|
mat |
- |
attenuation measurement: 0.01 - for steel structures, 0.02 - for concrete structures, 0.05 - for timber structures |
|
MassaType |
- |
numerical value of vibration acceleration [m/s2] perpendicular to structural element, depending on the static system and the distribution of mass in the system according to NEN6702#A.4, Fig. A.17 |
|
delta |
- |
largest structure bending [m] acting in vibration direction |
Returns: Fi1
NEN6702#8.7.2.1(Val)
Snow load Prep for roofs according to NEN6702#8.7.2.1
Parameters:
|
Val |
- |
roof form factor Cs = C1 or C2 for snow load according to NEN6702#B |
Returns: Prep [kN/m2]
NEN6702#8.7.2.1.B(str, str1, alfa, h, l1, l2, Cmax)
Roof form factor Cs = C1 or C2 for snow load according to NEN6702#8.7.2.1, NEN6702#B
Parameters:
|
str |
- |
loading scheme index according to NEN6702#B as "a", "b" etc. |
|
str1 |
- |
factor to calculate: "c1" - unreduced, "c2" - reduced |
|
alfa |
- |
roof inclination angle [°] |
|
h |
- |
height altitude [m] according to NEN6702#B |
|
l1 |
- |
distance [m] according to NEN6702#B |
|
l2 |
- |
distance [m] according to NEN6702#B |
|
Cmax |
- |
form factor for contiguous roof with maximal snow load |
Returns: Cs = Ci
NEN6702#8.7.2.2()
Snow load Ps = psn;rep on the ground according to NEN6702#8.7.2.2
Parameters:
|
none |
Returns: psn;rep = 0.7 [kN/m2]
NEN6702#A.1(Z, U, Z0, Dw, K)
Extreme wind pressure Pw according to NEN6702#A.1
Parameters:
|
Z |
- |
height above contiguous area [m] |
|
U |
- |
wind friction velocity [m/s] |
|
Z0 |
- |
roughness length [m] |
|
Dw |
- |
displacement height [m] |
|
K |
- |
environment factor |
Returns: Pw [kN/m2]