[评测]楼板对于整体结构到底有多大影响？用数据说话

本帖最后由 王子涵 于 2014-5-11 00:10 编辑

四层框架各层层高3.2m，各层x向y向均两跨，各跨4m，
柱子尺寸均400x400
x向y向梁截面均为400x400
柱梁板混凝土强度等级C30，
x向y向梁上恒载为9kN/m
楼板附加恒载为1.5kN/m2
楼板附加活荷载为2.5kN/m2
已实际考虑楼板刚度！

h=60mm
Mode 1: Value = 174.71 Freq = 2.1037 (cycles/time)
Mode 2: Value = 174.71 Freq = 2.1037 (cycles/time)
Mode 3: Value = 267.16 Freq = 2.6014 (cycles/time)

h=80mm
Mode 1: Value = 172.21 Freq = 2.0886 (cycles/time)
Mode 2: Value = 172.21 Freq = 2.0886 (cycles/time)
Mode 3: Value = 263.90 Freq = 2.5855 (cycles/time)

h=100mm
Mode 1: Value = 169.68 Freq = 2.0732 (cycles/time)
Mode 2: Value = 169.68 Freq = 2.0732 (cycles/time)
Mode 3: Value = 260.75 Freq = 2.5700 (cycles/time)

h=120mm
Mode 1: Value = 167.40 Freq = 2.0592 (cycles/time)
Mode 2: Value = 167.40 Freq = 2.0592 (cycles/time)
Mode 3: Value = 257.88 Freq = 2.5558 (cycles/time)

h=150mm
Mode 1: Value = 164.67 Freq = 2.0423 (cycles/time)
Mode 2: Value = 164.67 Freq = 2.0423 (cycles/time)
Mode 3: Value = 254.28 Freq = 2.5379 (cycles/time)

h=180mm
Mode 1: Value = 162.83 Freq = 2.0309 (cycles/time)
Mode 2: Value = 162.83 Freq = 2.0309 (cycles/time)
Mode 3: Value = 251.66 Freq = 2.5248 (cycles/time)

h=200mm
Mode 1: Value = 162.07 Freq = 2.0261 (cycles/time)
Mode 2: Value = 162.07 Freq = 2.0261 (cycles/time)
Mode 3: Value = 250.47 Freq = 2.5188 (cycles/time)

h=250mm
Mode 1: Value = 161.41 Freq = 2.0220 (cycles/time)
Mode 2: Value = 161.41 Freq = 2.0220 (cycles/time)
Mode 3: Value = 249.36 Freq = 2.5132 (cycles/time)

h=300mm
Mode 1: Value = 161.85 Freq = 2.0248 (cycles/time)
Mode 2: Value = 161.85 Freq = 2.0248 (cycles/time)
Mode 3: Value = 250.55 Freq = 2.5192 (cycles/time)

h=350mm
Mode 1: Value = 162.86 Freq = 2.0311 (cycles/time)
Mode 2: Value = 162.86 Freq = 2.0311 (cycles/time)
Mode 3: Value = 253.57 Freq = 2.5344 (cycles/time)

h=400mm
Mode 1: Value = 165.18 Freq = 2.0455 (cycles/time)
Mode 2: Value = 165.18 Freq = 2.0455 (cycles/time)
Mode 3: Value = 259.84 Freq = 2.5655 (cycles/time)

图表如下