武汉理工大学毕业设计
图3.3 恒载作用下框架的弯矩计算(KN·M)
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武汉理工大学毕业设计
1框架横梁的跨中弯矩计算公式为:M中=ql2?(M左?M右)/2,根据此公式
8计算各框架梁的跨中弯矩如下:
1MA6B6??27.20?7.82?(89.63?121.59)/2?206.86-105.61=101.25KN·M
81MB6C6??12.12?2.42?(63.53?63.53)/2?8.73-63.53=-54.80 KN·M
81MA5B5??30.47?7.82?(131.90?144.11)/2?231.72-138.01=93.71 KN·M
81MB5C5??8.73?2.42?(37.39?37.39)/2?6.29-37.39=-31.10 KN·M
81MA4B4??30.47?7.82?(129?143.66)/2? 231.72-136.33=95.39 KN·M
81MB4C4??8.73?2.42?(38.11?38.11)/2?6.29-38.11=-31.82 KN·M
81MA3B3??30.47?7.82?(129?143.66)/2?231.72-136.33=95.39 KN·M
81MB3C3??8.73?2.42?(38.11?38.11)/2?6.29-38.11=-31.82 KN·M
81MA2B2??30.47?7.82?(130.08?143.99)/2?231.72-137.04=94.68 KN·M
81MB2C2??8.73?2.42?(37.59?37.59)/2?6.29-37.59=-31.3 KN·M
81MA1B1??30.47?7.82?(115.17?138.24)/2?231.72-126.71=105.01 KN·M
81MB1C1??8.73?2.42?(49.05?49.05)/2?6.29-49.05=-42.76 KN·M
8 恒载作用下框架受力弯矩图如下(图3.4)
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武汉理工大学毕业设计
图3.4 恒载作用下框架的弯矩图(单位:KN·M)
3.6.2 恒载作用下框架的剪力计算
M?MB11?ql 梁:?MA?0:MA?MB?ql2?QB?l?0 QB?A2l2MA?MB112M?0:M?M?ql?Q?l?0Q??ql ?BABBA2l2M?MA5柱:?MA6?0:?MA6?MA5?QA5?h?0 QA5??A6
hMA6?MA5Q?? M?0:?M?M?Q?h?0?A5A6A6A5A6h
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武汉理工大学毕业设计
框架的剪力计算具体过程见下表,见剪力图(图3.5)。 恒载作用下梁剪力计算 层号 6 Ma Mb- Mb+ Mc- Mc+ Md Qa Qb- Qb+ Qc- Qc Qd -89.63 -121.59 -63.53 -63.53 -121.59 -89.63 110.18 -101.98 14.54 -14.54 101.98 -110.18 5 -131.90 -144.11 -37.39 -37.39 -144.11 -131.90 120.40 -117.27 10.48 -10.48 117.27 -120.40 4 -129.00 -143.66 -38.11 -38.11 -143.66 -129.00 120.71 -116.95 10.48 -10.48 116.95 -120.71 3 -129.00 -143.66 -38.11 -38.11 -143.66 -129.00 120.71 -116.95 10.48 -10.48 116.95 -120.71 2 -130.08 -143.99 -37.59 -37.59 -143.99 -130.08 120.62 -117.05 10.48 -10.48 117.05 -120.71 1 -115.17 -138.24 -49.05 -49.05 -138.24 -115.17 121.79 -115.88 10.48 -10.48 115.88 -121.79 恒载作用下柱剪力计算 层号 Ma+ Ma- Mb+ Mb- Mc+ Mc- Md+ Md- Qa Qb Qc Qd 6 89.63 70.66 -65.41 -53.53 65.41 53.53 -89.63 -70.66 -44.53 33.04 -33.04 44.53 5 60.36 65.10 -51.48 -51.91 51.48 51.91 -60.36 -65.10 -34.85 28.60 -28.60 34.85 4 65.10 65.10 -51.91 -51.91 51.91 51.91 -65.10 -65.10 -36.17 28.84 -28.84 36.17 3 65.10 64.08 -51.91 -51.60 51.91 51.60 -65.10 -64.08 -35.88 28.75 -28.75 35.88 2 67.17 79.89 -53.10 -60.21 53.10 60.21 -67.17 -79.89 -40.85 31.48 -31.48 40.85 1 35.29 17.64 -28.98 -14.49 28.98 14.49 -35.29 -17.64 -11.03 9.06 -9.06 11.03
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武汉理工大学毕业设计
图3.5 恒载作用下框架剪力图(KN)
3.6.3 恒载作用下框架的轴力计算
恒载作用下框架的轴力计算,包括粱传来的荷载和框架柱自重。 柱自重:
底层:6.59×6.05=39.87KN 标准层:6.59×3.6=23.72KN
框架在恒载作用下轴力计算如下表,轴力图如下(图3.6)
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