?上柱i上柱1.2???0.38 i上柱?i下柱?i右梁1.2?1.2?0.76i右梁0.76??0.2 4i上柱?下柱i?右梁i1.2?1.2?0.76i下柱1.2??0.3 8i上柱?下柱i?右梁i1.2?1.2?0.76节点分配系数?计算表
上柱下柱 ?右梁? ?下柱?右梁节点 层号 4 2——3 1 上柱 0 0.38 0.405 A 下柱 0.61 0.38 0.338 右梁 0.39 0.24 0.257 左梁 0.28 0.19 0.204 上柱 0 0.31 0.323 B 下柱 0.44 0.31 0.269 右梁 0.28 0.19 0.204 固端弯矩计算：（计算简图如下所示）
1因结构及荷载对称，并且在梁跨处受集中荷载，其中顶层集中荷载为：
3114.6KN，1——3层集中荷载为79.98KN
2.4P(2?3.6?2.4)??1.6P A点弯矩： MA??2?3.6PA2400B1200顶层： MA顶??1.6?114.6??183.36(KN?m) MA1——3??1.6?79.98??127.97(KN?m)
恒载作用下内力计算分析见下表
16
17
上柱下柱右梁00.610.39-183.360118.8571.5124.230-14.84-9.48121.33-121.33左梁0.28183.36037.76-10.57210.55上柱0下柱0.44右梁0.28-183.36004000-16.61-10.57-16.61-193.930.3848.6355.93-30.5074.060.380.24-127.9748.6330.72024.32-30.50-19.2642.45-116.510.310.19-127.9700000015.360-2.92-4.76-4.76-2.92140.41-4.76-4.76-130.680.190.31127.9730.3848.6324.32-19.0953.860.380.2448.6325.92-19.0955.46-127.9730.720-12.06-109.310.310.19-127.9700000015.360-2.92-4.76-4.76-2.92140.41-4.76-4.76-130.680.190.31127.9720.4050.3380.25751.8324.32-9.8566.3-127.9743.5232.8900-8.22-6.2535.03-101.330.2040.3230.2690.204127.97-127.97016.45-3.36141.060000-5.31-4.43-5.31-4.4300-3.36-131.33117.52-2.22AB恒荷载作用下内力计算分析表2.5.2 活荷载标准值作用下的内力计算
由于活载q与恒荷载VB?MB?MA?P?7.2?MB?MA?4.P8?7.22.P4?0比值的
q46.2??0.533?，所以不考虑活荷载的最不利布置，把活载同时作用在所有框架1g79.98上。
采用力矩二次分配法计算，见下表： 3.22 -6.56 28.1014.05 -11.0331.1228.1014.97-11.0332.040.380.380.24-73.9217.740-6.96-63.1428.100.380.380.24-73.9228.1017.74014.05-6.56-4.1435.59-60.320.190.3173.9208.87-1.6981.10.310.19-127.97000000-2.75-2.75-1.69-2.75-2.75-75.61上柱下柱00右梁左梁上柱0.2810.5602.06-0.5812.040下柱0.44右梁0.610.39-10.564.126.4414.050-8.58-5.4811.92-11.920.28-10.56000-0.58-11.14400-0.91-0.91324.760.190.3173.9208.87-1.6981.1
0.310.19-127.97000000-2.75-2.75-1.69-2.75-2.75-75.6120.4050.3380.257-73.9224.9819.0000-4.75-3.6120.23-58.530.2040.3230.2690.20473.92-127.9709.5-1.9481.480000-3.07-2.56-3.07-2.5600-1.94-74.861 29.94 -5.69 38.3
14.0510.121.28A18
B活荷载作用下内力计算分析表恒荷载作用下框架弯矩图（单位：KN）
12.0411.1411.9211.920.915.6181.160.3275.615.5735.5924.7623.232.752.7537.8181.163.1475.6132.0431.1225.582.752.7537.8181.4858.5374.8620.2338.321.623.072.5637.4310.121.28AB活荷载作用下内力计算分析表19
210.55193.93121.33121.3316.6130.93140.41116.51130.6896.96活荷载作用下框架弯矩图（单位：KN）
42.4574.0650.29140.41109.31130.684.764.7665.3455.4653.8646.294.764.7665.34141.06101.33131.3335.0366.343.025.314.4365.6717.522.22AB恒荷载作用下弯矩图20