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FACITLISTE

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20<br />

Statik og styrkelære · <strong>FACITLISTE</strong><br />

6. TRÆKONSTRUKTIONER<br />

151. σ t,0,d<br />

= 6,8 MPa < f t,0,d<br />

= 7,99 MPa<br />

152. a) 100 · 200 mm<br />

b) σ t,0,d<br />

= 5,5 MPa < f t,0,d<br />

= 6,21 MPa<br />

163. p max<br />

= 5,66 kN _____<br />

m<br />

164. a) V A<br />

= 20,625 kN V B<br />

= 12,375 kN<br />

b) x = 0,025 m (se figuren)<br />

153. a) F = 53846,5 N d) F = 80707 N<br />

b) F = 62799,5 N e) F = 98615 N<br />

c) F = 71753,5 N<br />

154. a) h = 175 mm (50 · 175 mm)<br />

b) σ t,0,d<br />

= 5,33 MPa < f t,0,d<br />

= 6,21 MPa<br />

155. σ t,0,d<br />

= 6,67 MPa > f t,0,d<br />

= 4,88 MPa<br />

Omdimensionering: 19 · 175 mm<br />

σ t,0,d<br />

= 2,86 MPa < f t,0,d<br />

= 4,88 MPa<br />

156. F max<br />

= 36685 N<br />

157. 150 · 150 mm, σ c,0,d<br />

= 1,87 MPa < k c<br />

· k d · f c,0,k<br />

= 3,44 MPa<br />

158. F max<br />

~ 58275 N<br />

159.<br />

c) 225 · 225 mm<br />

d) σ m.d<br />

= 8,07 MPa < f m,d<br />

= 10,65 MPa<br />

165. u max<br />

= 8,33 mm<br />

166. Deformation: 140 · 220 mm<br />

u = 7,66 mm < u max<br />

= 8 mm<br />

160. 200 · 200 mm<br />

σ c,0,d<br />

= 1,5 MPa < 3,04 MPa<br />

161. F max<br />

~ 39160 N<br />

162. a) 100 · 225 mm<br />

b) σ m,d<br />

= 5,92 MPa < f m,d<br />

= 7,99 MPa

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