Development and Application of Ancient Timber Buildings Structural Condition Assessment Model Based on a Fuzzy Matter-Element Model that Includes Asymmetric Proximity

Table 5

The value of each parameter in finite element model.

Parameter	Value
Diameter of short columns (mm)	A200
Diameter of other wood columns (mm)	A240~A250
Sectional dimension of wood brace; (height×thickness, mm)	200×80, 230×80, 250×80
Diameter of wood purlin (mm)	A160, A180
Sectional dimension of wood rafter; (width×thickness, mm)	90×60
Dead load standard values of pitched roof	2.1kN/m^2
Live load standard values of pitched roof	0.5kN/m^2
The ground roughness	Category D
The value of basic wind pressure	0.3kN/m^2
Strength grade of timber	44 N/mm^2
The bending design strength reduction coefficient of old timber	0.9
Shear design strength parallel to grain reduction coefficient of old timber	0.9
Elastic modulus reduction coefficient of old timber	0.9
Bearing design strength perpendicular to grain reduction coefficient of old timber	0.9
Compressive design strength parallel to grain adjustment coefficient of old timber	0.95
Material reduction coefficient of new timber	1.0

Note. The beam-column nodes were calculated as the hinged connection (the beam of the overhanging support was calculated as the fixed end); the effect of the member crack is not taken into account in the checking calculation. The material reduction coefficient of timber was valued according to [26, 27], while the load was valued according to [28].