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【正文】 柱底4柱頂柱底3柱頂柱底2柱頂柱底1柱頂柱底注:=+::(1)頂層:MA5B5= MB5A5 =1/12ql2(12a2/l2+ a3/l3)= 1/12(1232/+33/)= MB5D5=5/96 ql2=5/96= MD5B5=1/32 ql2=1/32= (2)二—五層橫梁:MA1B1= MB1A1=1/12ql2(12a2/l2+ a3/l3)=1/1212(1232/+33/)= MB1D1=5/96 ql2=5/96= MD1B1=1/32 ql2=1/32= (邊框架縱梁偏向外側(cè),中框架縱梁偏向內(nèi)側(cè))頂層外縱梁:MA5= MD5==(逆時(shí)針為正)樓層外縱梁:MA1= MD1=18= 頂層中縱梁:MB5= MC5==樓層中縱梁:MB5= MC5==(僅BC跨作用活載時(shí)) MB1= MC1== MB1= MC1== (僅BC作用活載時(shí)):(1)頂層邊跨梁跨中彎矩最大,如圖(a)(2)頂層邊住柱頂左側(cè)及柱底右側(cè)受拉最大彎矩,如圖(b)(3)頂層邊跨梁梁端最大彎矩,如圖(c)(4)活載滿跨布置,如圖(d) 圖35活載不利布置 (a) 圖36活載不利布置(b) 圖37活載不利布置(c) 圖38活載不利布置(d) :當(dāng)AB跨布置活載時(shí):MA5= MA5B5+ MA5=+= MA1= MA2= MA3= MA4= MA1+ MA1B1=+= MB5= MB5A5+ MB5== MB1= MB2= MB3= MB4= MB1A1+ MB1== 當(dāng)BC跨布置活載:MB5= MB5D5+ MB5== MB1= MB2= MB3= MB4= MB1D1+ MB1== 當(dāng)AB跨和BC跨均勻布置活跨時(shí):MA5= MA5B5+ MA5=+= MA1= MA2= MA3= MA4= MA1+ MA1B1=+= MB5= MB5A5+ MB5+ MB5D5== MB1= MB2= MB3= MB4= MB1A1+ MB1+ MB1D1== :采用迭代法計(jì)算,如下圖39 活載(a)迭代過程 A5    B5              A5A4 A5B5  B5A5 B5D5B5B4D5B5                                  A4    B4    0        A4A5 A4A3A4B4B4B5B4A4 B4D4B4B3D4B4                   1       A3    B3            A3A4 A3A2A3B3B3B4B3A3 B3D3B3B2D3B3                         A2    B2    0        A2A3 A2A1A2B2B2B3B2A2 B2D2B2B1D2B2                         A1    B1            A1A2 A1A0A1B1B1B2B1A1 B1D1B1B0D1B1                                       A0A0A1   B0B0B1                          圖310 活載(a)彎矩圖 圖311活載(a)剪力,軸力 圖312 活載(b)迭代過程 A5    B5              A5A4 A5B5  B5A5 B5D5B5B4D5B5              1                    A4    B4            A4A5 A4A3A4B4B4B5B4A4 B4D4B4B3D4B4         0                 A3    B3    0        A3A4 A3A2A3B3B3B4B3A3 B3D3B3B2D3B3        0 000                 A2    B2            A2A3 A2A1A2B2B2B3B2A2 B2D2B2B1D2B2      0 0                A1    B1    0        A1A2 A1A0A1B1B1B2B1A1 B1D1B1B0D1B1         0 000                    A0A0A1   B0B0B1   0                      節(jié)點(diǎn)分配順序:(A5,B4,A3, B2,A1)。( B5 ,A4,B3,A2,B1)滿跨活載迭代過程: 圖316 A5    B5              A5A4 A5B5  B5A5 B5D5B5B4D5B5                                A4    B4            A4A5 A4A3A4B4B4B5B4A4 B4D4B4B3D4B4                        A3    B3            A3A4 A3A2A3B3B3B4B3A3 B3D3B3B2D3B3                        A2    B2            A2A3 A2A1A2B2B2B3B2A2 B2D2B2B1D2B2                       A1    B1            A1A2 A1A0A1B1B1B2B1A1 B1D1B1B0D1B1                                      A0A0A1   B0B0B1                                 節(jié)點(diǎn)分配順序:(A5,B4,A3, B2
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