【風(fēng)作用下的框架內(nèi)力分析計(jì)算案例660字】VIP

風(fēng)作用下的框架內(nèi)力分析計(jì)算案例1.1自然條件風(fēng)荷載取一榀框架來(lái)計(jì)算，風(fēng)壓標(biāo)準(zhǔn)值計(jì)算公式：（6-1）因?yàn)镠<30m,,,查表C類(lèi)——單位面積上的風(fēng)荷載標(biāo)準(zhǔn)值；——高度Z處的風(fēng)震系數(shù)；——風(fēng)載體型系數(shù)；——風(fēng)壓高度變化系數(shù)；——基本風(fēng)壓；——集中于質(zhì)點(diǎn)i的風(fēng)作用；——風(fēng)作用下第i層層剪力。1.2風(fēng)作用下荷載匯集表6-1風(fēng)作用下的結(jié)構(gòu)層剪力計(jì)算層Z(m)(kN/m)A(m2)(kN)(kN)311.313.80.740.619.4411.2211.22211.39.60.740.630.2417.4528.68111.35.40.740.634.5619.9548.62注：;。1.3風(fēng)作用下框架柱剪力和彎矩（采用D值法，取中框架）表6-2-1風(fēng)作用求邊柱反彎點(diǎn)（A軸、D軸）層h(m)y34.20.5820.4500.0000.0000.0000.45024.20.5820.5090.0000.0000.0000.50915.40.7300.6850.0000.0000.0000.685表6-2-2風(fēng)作用求中柱反彎點(diǎn)（B軸、C軸）層h(m)y34.20.9410.4710.0000.0000.0000.47124.20.9410.5000.0000.0000.0000.50015.41.1800.6410.0000.0000.0000.641注：是均布荷載下查表得到的。表6-3-1風(fēng)作用下邊柱剪力和彎矩計(jì)算（A軸、D軸）層h(m)∑Di(kN/m)D(kN/m)D/∑DiVi(kN)Vik(kN)yM下(kNm)M上(kNm)34.228821.3650723504.490.8211.229.150.4517.3021.1424.228821.3650723504.490.8228.6823.390.50949.9948.2315.442219.1794116257.970.3948.6218.720.68569.2631.85表6-3-2風(fēng)作用下中柱剪力和彎矩計(jì)算（B軸、C軸）層.h(m)∑Di(kN/m)D(kN/m)D/∑DiVi(kN)Vik(kN)yM下(kNm)M上(kNm)34.228821.3650723504.490.8211.229.150.47118.1020.3324.228821.3650723504.490.8228.6823.390.549.1149.1115.442219.1794116257.970.3948.6218.720.64164.8131.301.4風(fēng)作用下梁端彎矩計(jì)算6-4風(fēng)作用下梁端彎矩計(jì)算（A軸、B軸）A軸B軸17.321.14138.4418.120.330.6180.38223.7497414.6802649.9948.23198.2249.1149.110.6180.38260.6999637.5200469.2631.851101.1164.8131.30.6180.38262.4859838.624021.5風(fēng)作用下梁端剪力和柱的軸力計(jì)算表6-5風(fēng)作用下梁的剪力和柱的軸力計(jì)算層A-B跨梁端剪力B-C跨梁端剪力柱軸力L(m)L(m)A軸柱(kN)B軸柱(kN)3638.4423.7510.36614.6814.684.89-10.36-4.892698.2260.7021.49637.5237.5212.51-31.85-17.4016101.1162.4927.27638.6