2̵ֲϵɱϵͼֵϵ42
42
ֲ |
|
ϵ |
Ԥɱ(Ԫ) |
ɱϵ |
ֵϵ |
Ŀɱ(Ԫ) |
ɱͶ(Ԫ) |
|
|
|
|
|
|
|
|
Χ |
12 |
0.12 |
1500 |
0.12 |
1.00 |
1384.56 |
115.4 |
ҹ |
13 |
0.13 |
1450 |
0.11 |
1.18 |
1499.99 |
-49.9 |
ṹ |
37 |
0.37 |
4660 |
0.36 |
1.03 |
4269.1 |
390.9 |
װι |
38 |
0.38 |
5210 |
0.41 |
0.93 |
4384.4 |
825.6 |
ϼ |
100 |
1.00 |
12820 |
1.00 |
|
11538 |
1282 |
4ֵ۽гɱƣҪǿֵ(1)ɹԤã(2)ƻɹԤã(3)ɹʵʷá
5. طֳת淨ַضԳɱγɵӰ̶ȡڽзʱҪȷڶеһط˱仯䣬Ȼ滻ֱȽȷصı仯ԳɱӰ̶ȡ
طļ㲽:
(1) ȷ(ļָ)ʵĿ(Ԥ)IJ죻
(2) ȷָļɵģ(ǣʵֵȾֵֵ)
(3) Ŀ(Ԥ)ΪصĿ(Ԥ)ˣΪĻ
(4) صʵ˳滻㣬滻ʵ
(5) ÿ滻õĽǰһεļȽϣߵIJ켴ΪضԳɱӰ̶ȡ
˵漰ý淨㵥羲(1A411024)У3Ӧõƽƽϵƽ̹ⷽʽY=0MA(F)=0
4֪ʶҪǣ£ϲʽءмVԶ²һ˳ʱתΪ֮Ϊ翼ʱVΪΪ翼ҲʱVΪΪM²άΪ֮Ϊ
ABþأqΪͼΪбֱߣABɻͼΪߣABеƽرɻͼΡ
BCCDΣq=0ΪƽеֱߣijһɻͼΪбֱߣBCDرɻ
𰸡
1ҪָĴСõ㡣
2֧ȻͼȻֱDBȡء
ͼ46
3.ȻֱDBȡأ֧
M D=021.26.6+103-RB6=0RB=7.64KN ()
M B=0RD6-103+21.20.6=0RD=4.76KN ( )
4.ļͼͼͼ4546ʾ