Compression perpendicular to the grain
Cross-sectional Inputs
All references to EN 1995-1-1:2004
unless otherwise stated.
This tests a cross-section in compression perpendicular to the grain according to Clause 6.1.5
.
Timber type
The timber type of the cross-section. See the timber database section for the types supported by Teretron.
Cross-section type
The geometry type of the cross-section.
Width bThe width of a rectangular cross-section, in mm. Depth hThe depth of a rectangular cross-section, in mm. Length l_{v}The distribution length of the compressive force, in mm. |
Area A
The area of effect of the compressive force, in mm^{2}.
Area reduction
The area reduction ΔA refers to reductions in the nominal cross-section size that have to be taken into account in the calculation of the member strength (e.g. holes from fasteners) according to Subclause 5.2(2)
.
It should be given as a percentage of the total nominal area of the cross-section.
The EN 1995-1-1
state that the compressive strength can be multiplied by a factor k_{c,90} for rectangular cross-sections of solid or glulam softwood, with l_{1} ≥ 2h.
The value of k_{c,90} should be taken between 1.0 and 1.75 and its precise value depends on the support conditions and the timber type.
Member on continuous supports
For a beam resting on continuous supports, as per Figure 6.2(a)
.
Member on discrete supports
For a beam on discrete supports, as per Figure 6.2(b)
.
Other
For members not covered by the two cases above.
Distance to the edge α
The distance to the end of the member α, in mm. It is applicable only for a member in continuous or discrete supports, as per Figure 6.2
.
Distance between compressive force l_{1}
The distance to the end of the member l_{1}, in mm. It is applicable only for a member in continuous or discrete supports, as per Figure 6.2
.
Contribution of the load distribution system in the member strength properties
Includes factor k_{sys} for the calculation of the member strength, according to Clause 6.6
, for a member that functions as part of a continuous load distribution system.
Note that Subclause 6.6(3)
states that the strength verification for a continuous load distribution system should be carried out assuming short-term load duration.