Rothoblaas Catalogue 2019

CHARACTERISTIC VALUES EN 1995:2014

TECHNICAL ASPECTS

STATIC VALUES

S

S

plate S

plate

plate

A

L

b

d

1

SHEAR

TENSION

THREAD WITHDRAWAL (4) HEAD PULL-THROUGH (5)

STEEL-WOOD THIN PLATE (2)

STEEL-WOOD THICK PLATE (3)

GEOMETRY

TIMBER-TIMBER

d 1 [mm]

L [mm]

b [mm]

A [mm]

R v,k [kN] 2,59 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28 3,28

R v,k [kN]

R v,k [kN]

R ax,k [kN] 5,25 5,25 6,06 6,06 8,08 8,08 8,08 8,08 8,08 8,08 8,08 10,10 10,10 10,10 10,10 10,10 10,10 10,10 10,10 10,10

R head,k [kN]

80

52 28 52 48 60 60 60 80 80 80 80 100 80 120 80 140 80 160 80 180 80 200 100 200 100 220 100 240 100 260 100 280 100 300 100 340 100 380 100 420

3,99 3,99 4,19 4,19 4,70 4,70 4,70 4,70 4,70 4,70 4,70 5,20 5,20 5,20 5,20 5,20 5,20 5,20 5,20 5,20

5,10 5,10 5,30 5,30 5,81 5,81 5,81 5,81 5,81 5,81 5,81 6,31 6,31 6,31 6,31 6,31 6,31 6,31 6,31 6,31

2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38 2,38

100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 440 480 520

8

S PLATE ≥ 4 mm

S PLATE ≥ 8 mm

GENERAL PRINCIPLES:

- Characteristic values consistent with EN 1995:2014 and in accordance with ETA-11/0030. - Design values can be obtained from characteristic values as follows:

The coefficients γ m and k mod should be taken according to the current regulations used for the calculation. - For the mechanical strength values and the geometry of the screws, reference was made to ETA-11/0030. - For the calculation process a timber density ρ k = 385 kg/m 3 has been considered. Characteristic resistances can also be considered as valid for larger densities, for the purposes of safety. - Values were calculated considering the threaded part as being completely inserted into the wood. - Dimensioning and verification of timber elements and steel plates must be carried out separately. - The shear characteristic resistances are calculated for screws inserted without pre-drilling holes. In the case of screws inserted with pre-bored holes, greater resistance values can be obtained. - For different calculation methods, the myProject software is available free of charge. (www.rothoblaas.com) The characteristic resistances were calculated using solid wood or glulam. In the case of joints with CLT elements, the resistance values may be differ ent and should be calculated on the basis of the characteristics of the panel and the connection configuration. Full list of codes and technical data available in the website www.rothoblaas.com.

NOTES:

(1) Minimum distances are in accordance with EN 1995:2014 standard, according to ETA-11/0030, considering a volume mass of the wooden elements equal to ρ k ≤ 420 kg/m 3 . In the case of steel-wood joints, the minimum spacings (a 1 , a 2 ) can be multiplied by a coefficient of 0,7.

(2) The shear resistance characteristics are calculated considering the case of a thin plate (S PLATE ≤ 0.5 d 1 ). (3) The shear resistance characteristics are calculated considering the case of a thick plate (S PLATE ≥ d 1 ).

(4) The axial thread-resistance was calculated considering a 90° angle between the grain and the connector and for a fixing length of b. (5) The axial resistance to head penetration was calculated using wood elements. In the case of steel-wood connections, generally the steel tensile strength is binding with respect to head separation or penetration.

COMPLEMENTARY PRODUCTS | HBS | 183