丸太基礎杭設計マニュアル - rinya.maff.go.jp

1 26 3 3 24 25 26 3 1 2 12 13 3 15 4 16 5 17 17 17 18 18 19 19 19 20 20 21 21 22 22 23 24

2 24 - 2 - ( ) ( ) ( ( ) ( ) - 1 - S40 10 m3 ( ) 27 m3 H24 24 - 2 - 17cm 19 40)

3 100 - 3 - I IV , - 4 - H L H= L U H - 5 - IV 70mm I IV

4 - 6 - N v Nd Nsw (UU) qu Cu I IV ,135 - 7 - (Ru) ( ) Ru=qd A+U (Li fi) ( ) Ru (kN) qd (kN/m2) A (m2) U m Li (m) fi (kN/m2) ( ) qd/N =100(kN/m2) ( ) N N N N1+N 2 N1 N N 2 4D N fi - 8 - (kN/m2) 2N( 100) C 10N( 150) (kN/m2) N N N 5 N (Ra) ( ) Ra /n Ru ( ) Ra (kN)

5 N 3 1 2 - 9 - N I IV 8 5 23 5 - 10 - ( ) Pu=U (Li fi) ( ) Pu (kN) U (m) Li (m) fi (kN/m2) (Pa) ( ) Pa=1/n Pu ( ) Pa (kN) n Pu (kN)

6 3 1 2 - 11 - I IV 8 5 Raw= cr,a L/r cr,a(N/mm A L r I D: Raw= [7 [7 55842N/ (R = cr,a A (N/mm2) (mm) mm 15cm = cr,a A [7 [ (3000/150)]55842N/ (Ra) ( 2 (mm2) (mm) = mm 3m (L/D)] D(3000/150)] ) L/r<100 7 (L/D)(mm) (mm4)))]

7 D2/4 1502 /4 - 12 - cr (L/D) ( 2 L/r< ) 8 (Raw) L/r<100 8 (L/D) (L/D) ( ) - 13 - n (q +q ) B L ( ) n Ra (kN/ ) q1 : (kN/ ) q2 : (kN/ ) B : (m) L : (m) Q (q +q ) B ( ) tan ( ) Ai ( ) Xi ( ) gi = X tan +q ( ) Gi ( ) Ki = Gi+ Xi ( ) q : (kN/ ) q : (kN/ ) - 14 - Qi :O Xi (kN) Xi :O Ai (m) B : (m) gi.

8 Xi (kN/ ) Gi i (m) Ki O i (m) BX X gigi 1 q q X tan K K K - 15 - - 16 - ( ) - 17.

9 - 18 - JIS JAS 50 100 20 30 C - 19 - ( )