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61ܵߺ
1239>2OΪΪ39mԵĴ顶淶41181¥رֵΪ40kNm2ݹ淶41213Ե¥ǵĴۼϵΪ08 ܵ¥رֵľߺqkͼͼ126(a) qk=40839=1248kNm
2ܵļкظݡ淶41213Ե¥ǵصۼϵӦȡ06 ܵɴ¥رֵļFkͼͼ126(b)
Fk=40639120=11232kN
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7 ݡ淶451ע2Ĺ涨Ӧذÿ10mȡһкN=1.0kNܶͷ ȡλ(1m)ΪȡܸAAΪƿƽ棬ͷľΪ04m ʩкزAAرֵ M=0410=04kNm
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8ṹع淶GB 500092 0015121涨ˮƽȡһ߹ɲֵѹ֮͵10áȡ2̨ɲּ㡣ù淶522Ĺ涨ۼϵ096 TLK=0952011 00=1 9kN
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91ں£ABѹֵΪ ݡع淶325 طϵȡ12
BD˼V=1/221259=54kN N=V=54kN
2ڻ£ABѹֵΪ (1)ݡֽṹ淶3
ɼĺأۼϵ075 (2)ع淶325Q=13
(3)ƽ̨زѹֵ 0751320(59/2)=43875kN (4)ѹֵ
ӲֱӳܶأؿǶϵǻطϵ14ֵϵ07 14100(1/2)=70kN
N=43875+0770=48775kN ܵN=N+N=54+48775=54175kN
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10ɱã
N=1240+1412+07144=6872kN
úЧӦãϵĿɱнضز ϡ⣬زѩͬʱϡѹֵΪ N=13540+071412=6576kN
ȻغܴǻãȡN=6872kN
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11 1ijʱʩкزرֵ
ʱӦȡ1mİΪ˿ȷΧһ10kNʩкأλڰ˲ǿȿƽλǽԵAA棬˽ʩкزرֵ
M=-1.011=-1.1kNm(ϱ)
2㸲ʱʩкزرֵ
ܿΪ272m涨㸲ʱذÿ253mһкأʱֻ迼һкأõλڰˡ㸲ʱաṹƹ淶742㸲Ĺ涨ǽڵȣΪĿȣС22ߣˣ㸲ǽԵľxӦΪ013ȣ x=013024=0031m
ˣʩػز㸲رֵ M=11311=13kNm
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12(1)
ɡع淶¼D4иD4лѩѹSo=04kNm2C=07f=06q=02ѩֲϵ淶6214͵6á (2)ѩرֵ پȷֲ
Sk=rS0=1004=04kNm2 ڲȷֲ
촰 Sk=rs0=0804=032kNm2 촰 Sk=rs0=1404=056kNm2 촰 Sk=rs0=1104=044kNm2 ѩرֲֵʾͼ149