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锚定板及拉杆设计计算书长安大学公路学院设计人:许振涛、李明、杜松审核人:高江平教授-1-一、锚定板极限抗拔力H=10m1.①110.815sin53.9540.5Hh∴第一层锚定板为浅埋②223.756.2540.6Hh∴第二层锚定板为深埋③336.79.640.7Hh∴第三层锚定板为深埋2.第一层锚定板抗拔力计算2012ubPDKB2118.081(1.970.25)30.6248.14kN[]16.0473.0uuPPkN(容许抗拔力)3.第二层锚定板抗拔力计算uqPNHBh3818.0813.750.70.61082.15kN[]360.723.0uuPPkN4.第三层锚定板抗拔力计算uqPNHBh3818.0816.70.80.72577.91kN容许抗拔力:[]859.33.0uuPPkN-2-H=9m1.①111.012sin54.0940.5Hh∴第一层锚定板为深埋②223.555.940.6Hh∴第二层锚定板为深埋③336.18.740.7Hh∴第三层锚定板为深埋2.第一层锚定板抗拔力计算uqPNHBh3818.0812.0450.60.5421.52kN[]140.53.0uuPPkN3.第二层锚定板抗拔力计算uqPNHBh3818.0813.550.70.61024.43kN[]341.473.0uuPPkN4.第三层锚定板抗拔力计算uqPNHBh3818.0816.10.80.72347.1kN容许抗拔力:[]782.363.0uuPPkN-3-H=8m1.①110.911sin53.740.5Hh∴第一层锚定板为浅埋②223.155.2540.6Hh∴第二层锚定板为深埋③335.47.740.7Hh∴第三层锚定板为深埋2.第一层锚定板抗拔力计算2012ubPDKB2118.081(1.8580.25)30.6242.076kN[]14.0253.0uuPPkN3.第二层锚定板抗拔力计算uqPNHBh3818.0813.150.70.6909.0kN[]303.03.0uuPPkN4.第三层锚定板抗拔力计算uqPNHBh3818.0815.40.80.72077.7kN容许抗拔力:[]692.573.0uuPPkN-4-H=7m1.①111.010.5sin53.840.5Hh∴第一层锚定板为浅埋②223.86.340.6Hh∴第二层锚定板为深埋2.第一层锚定板抗拔力计算2012ubPDKB2118.081(1.9150.25)30.6245.11kN[]15.033.0uuPPkN3.第二层锚定板抗拔力计算uqPNHBh3818.0813.80.70.61096.58kN[]365.523.0uuPPkN-5-H=6m1.①111.743.440.5Hh∴第一层锚定板为浅埋②223.35.540.6Hh∴第二层锚定板为深埋2.第一层锚定板抗拔力计算2012ubPDKB2118.081(1.740.25)30.6236.12kN[]12.043.0uuPPkN3.第二层锚定板抗拔力计算uqPNHBh3818.0813.30.70.6952.29kN[]317.433.0uuPPkN-6-H=5m1.①111.61340.5Hh∴第一层锚定板为浅埋②222.84.6740.6Hh∴第二层锚定板为深埋2.第一层锚定板抗拔力计算2012ubPDKB2118.081(1.610.25)30.6230.09kN[]10.033.0uuPPkN3.第二层锚定板抗拔力计算uqPNHBh3818.0812.80.70.6808kN[]269.333.0uuPPkN-7-H=4m1.①110.750.521.540.5Hh∴第一层锚定板为浅埋2.第一层锚定板抗拔力计算2012ubPDKB2118.081(1.270.25)30.6217.02kN[]5.6753.0uuPPkN-8-二.锚定板尺寸1#锚定板12.07.08.0;面积256.0m2#锚定板12.06.07.0;面积242.0m3#锚定板12.05.06.0;面积230.0m1#锚板10m时埋深6.9m;9m时埋深6.1m;8m时埋深5.5m∴埋深介于120][105up之间kN∴板面应力2120/0.56214.29(/)kNm板的水平方向最大弯矩max214.290.40.70.4/212()MkNm板的垂直方向最大弯矩max214.290.350.80.35/210.5()MkNm最大剪力max214.90.8/285.72()QkN∴计算水平向配筋时b=700mm最大弯矩12kNm垂直方向时b=800mm最大弯矩10.5kNm;mmh120;采用Ⅱ级钢筋。结构安全系数1.10Y;混凝土采用C35,则混凝土轴心设计抗压强度16.1ckafMp;轴心设计抗拉强度1.52tkafMp;普通钢筋抗拉强度设计值280sdsdaffMp;保护层厚mma50,)(7050120mmahho。1)水平方向)2(0xhbxfMckmax1.11213.2()13200000132000001.016.1700(70)219.430.567039.2oboMMkNmxmmhmm206.78228043.197001.160.1mmAAAfbfssSsdxck-9-选取)9.10171.1139(129φ验算是否满足最小配筋率:对于卧置于地基上的混凝土板,板中受拉钢筋的最小配筋率可适当降低,但不应小于0.15%。%15.0%0.2)70700/(9.1017)/(osbhA满足要求2)垂直方向)2(0xhbxfMckmmxx61.16)270(8001.160.113200000mmhxob2.3961.16206.76428061.168001.160.1mmAAAfbfssSsdxck选取)11311.11310(1210φ验算是否满足最小配筋率:对于卧置于地基上的混凝土板,板中受拉钢筋的最小配筋率可适当降低,但不应小于0.15%。%15.0%0.2)70800/(1131)/(osbhA满足要求3)斜截面抗剪验算。受剪截面应满足:occbhfV25.0225.19707.07.0161000.125.025.0occhbf)(225.1974872.8556.0kNKNV满足斜截面抗剪要求。当不配置箍筋和弯起钢筋的受弯板时,应满足othbhfV7.0;式中V为构件斜截面上的最大剪力设计值;h为截面高度影响系数,当mmho800时,取当mmho800当mmho2000时取mmho2000,则4/1)/800(ohh,计算得:0.1)800/800(4/1h;tf为混凝土轴心抗拉强度设计值,取aMp52.1则136.5207.07.015200.17.07.0othhbf4852.136VkNkN满足要求不需要配箍筋和弯起钢筋。-10-2#锚板10m时埋深3.95m,9m时3.55m,8m时3.25m,7m时3.8m,6m时3.3m∴埋深介于100][53up之间kN∴板面应力2100/0.42238.095(/)kNm板的水平方向最大弯矩max238.0950.350.60.35/28.75()MkNm板的垂直方向最大弯矩max238.0950.30.70.3/27.50()MkNm最大剪力max238.0950.7/283.33()QkN∴计算水平向配筋时b=600mm最大弯矩8.75kNm垂直方向时b=700mm最大弯矩7.50kNm;mmh120;采用Ⅱ级钢筋。结构安全系数1.10Y;混凝土采用C35,则混凝土轴心设计抗压强度16.1ckafMp;轴心设计抗拉强度1.52tkafMp;普通钢筋抗拉强度设计值280sdsdaffMp;保护层厚mma50,)(7050120mmahho。1)水平方向)2(0xhbxfMckmmhmmxmKNMMobo2.397056.0081.16)270(6001.160.196250009625000)(625.975.81.1max279.554280081.166001.160.1mmAAAfbfssSsdxck选取)32.62856.788(108φ验算是否满足最小配筋率:对于卧置于地基上的混凝土板,板中受拉钢筋的最小配筋率可适当降低,但不应小于0.15%。%15.0%5.1)70600/(3.628)/(osbhA满足要求2)垂直方向-11-)2(0xhbxfMckmmxx5.13)270(7001.160.19625000mmhxob2.395.132375.5432805.137001.160.1mmAAAfbfssSsdxck选取)86.70654.789(1092mmφ验算是否满足最小配筋率:对于卧置于地基上的混凝土板,板中受拉钢筋的最小配筋率可适当降低,但不应小于0.15%。%15.0%4.1)70700/(86.706)/(osbhA满足要求3)斜截面抗剪验算。受剪截面应满足:occbhfV25.005.16907.06.0161000.125.025.0occhbf)(05.1693533.8342.0kNKNV满足斜截面抗剪要求。当不配置箍筋和弯起钢筋的受弯板时,应满足othbhfV7.0;式中V为构件斜截面上的最大剪力设计值;h为截面高度影响系数,当mmho800时,取当mmho800当mmho2000时取mmho2000,则4/1)/800(ohh,计算得:0.1)800/800(4/1h;tf为混凝土轴心抗拉强度设计值,取aMp52.1则69.4407.06.015200.17.07.0othhbf3544..69VkNkN满足要求不需要配箍筋和弯起钢筋。1#锚板当挡墙高10m~4m时1#锚板埋深均为1.05m3BKKhTpapiu)(25.0][2;0;0;1923.0aK由墙背粗糙,排水良好时取17.103-12-∴222])cos()cos()sin()sin(1)[cos(cos)(cospK=22])17.10cos(5.30sin67.40sin1)[17.10cos(5.30cos=31.4172.0/742.0∴2[]0.2518.0811.05(4.310.1923)0.612.31upkN板面应力212.31/0.341.03(/)kNm板的水平方向最大弯矩max41.030.30.50.3/20.923()MkNm板的垂直方向最大弯矩max41.030.250.6
本文标题:锚定板及拉杆设计计算书
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