理論上使用階段撓度值為1/2汽車荷載變形反向值＋混凝土收縮、徐變完成變形值的反向值，經(jīng)計(jì)算，忽略邊跨使用階段撓度，即邊跨僅有施工階段拋高，不計(jì)后期變形，中跨各節(jié)點(diǎn)使用階段預(yù)拋高值見表6.1。
表6.1 使用階段預(yù)拋高計(jì)算表(cm)
|
施工截面號(hào)
|
節(jié)點(diǎn)號(hào)
|
豎向位移
(cm)
|
施工截面號(hào)
|
節(jié)點(diǎn)號(hào)
|
豎向位移
(cm)
|
|
0
|
24
|
0.00
|
13'
|
43
|
4.95
|
|
1'
|
28
|
1.24
|
12'
|
44
|
4.83
|
|
2'
|
29
|
1.67
|
11'
|
45
|
4.65
|
|
3'
|
30
|
2.07
|
10'
|
46
|
4.43
|
|
4'
|
31
|
2.45
|
9'
|
47
|
4.17
|
|
5'
|
32
|
2.80
|
8'
|
48
|
3.85
|
|
6'
|
33
|
3.19
|
7'
|
49
|
3.54
|
|
7'
|
34
|
3.54
|
6'
|
50
|
3.19
|
|
8'
|
35
|
3.85
|
5'
|
51
|
2.80
|
|
9'
|
36
|
4.17
|
4'
|
52
|
2.45
|
|
10'
|
37
|
4.43
|
3'
|
53
|
2.07
|
|
11'
|
38
|
4.65
|
2'
|
54
|
1.67
|
|
12'
|
39
|
4.83
|
1'
|
55
|
1.24
|
|
13'
|
40
|
4.95
|
0
|
56
|
0.00
|
