Page 569 - 水土保持手冊_10612

項 1 2 3 4 5 6 7 8
目 斷面 載重 計算式 單位重 力 力臂 力矩 應力計算
t/m 3 t m t-m
1 A-A 1 1/2 × 1.5 × 5.0 2.35 8.81 1.3 11.46 ∑ 88.45 = 1.80

2 及 2 = 3.75 2.35 3.525 1.95 6.87 = ∑ = 49.09

3 B-B 3 0.3 × 5.0 = 1.5 2.35 5.875 2.43 14.28 3.6 = 0.60 o.k
4 Σ 1/2 × 1.0 × 5.0 18.21 32.61 eA = 1.8 − 1.80 = 0.0 ≤ 6
= 2.50 1 ∑ 6 49.09 6 × 0 )

7.75m 2 2 = (1 ± ) = 3.6 (1 ± 3.6
5 A-A 4+5 1.0 × 3.6 = 3.6 2.35 8.46 1.80 15.23 & 13.64 & 13.64
1
2
6 6 0.2 × 0.5 = 0.10 1.8 0.18 3.35 0.60 ∑ 60.01
= = = 1.77
7 7 6.26 × 1.8/2 = 5.63 1.8 10.14 0.6 6.08 ∑ 33.87
8 VA 18.60 × 0.598 12.10 0 0 2.8 2.8
eB = 1.77 − 0.3 − = 0.07 < = 0.7 o.k
9 HA 18.60 × 0.802 16.24 2.09 33.94 2 4
工-3-11
2
10 VA Σ 4 及 5 項 A=11.35m ΣVA 49.09 ΣMA 88.45 1 ∑ 6 33.87 6 × 0.07 )
11 B-B VB 14.29 × 0.598 8.55 0.3 2.57 2 = ′ �1 ± ′ � = 2.8 (1 ± 2.8
12 HB 14.29 × 0.802 11.46 1.67 19.14 = 13.91 & 10.2 o.k.
7 5.26 × 1.5/2 = 3.95 1.8 7.11 0.8 5.69 6 × 1.37 = 8.22/
2
13 Σ ΣVB 33.87 ΣMB 60.01 f = 1 × 1.0 2
HB = 0.82kg/cm < 0.03fc ≑ 4.2 o.k.
14 C-C 6 0.2 × 0.5 = 0.1 1.8 0.18 0.25 0.05 × 6
註:f = = 3 2 =
15 5 1.0 × 0.5 = 0.5 2.35 1.18 0.25 0.29 2
12
16 7 0.5 × 13.64 6.82 0.25 -1.71

17 Σ -5.46 -1.37