【《某预应力混凝土简支梁T型梁桥设计资料及构造布置分析案例》1300字】

某预应力混凝土简支梁T型梁桥设计资料及构造布置分析案例目录TOC\o"1-3"\h\u28863某预应力混凝土简支梁T型梁桥设计资料及构造布置分析案例 1160511.1设计资料 1219031.1.1跨径参数 190211.1.2设计荷载 115701.1.3、材料及工艺 1126981.1.5、横断面布置 2191771.2主梁构件主要断面几何特性计算 290301.3主梁构件片数确定 717921.4横断面沿跨长的变化 7261251.5横隔梁构件的设置 71.1设计资料1.1.1跨径参数跨径标准值：40m主梁构件整体长度：39.92m，桥面净空：10+2×1m跨径计算值：39m。1.1.2设计荷载公路—Ⅱ级1.1.3、材料及工艺预应力混凝土简支梁T型梁桥；主梁用C45材料，其他的构件用C45；预应力钢筋采用的是钢绞线，每束7根，全梁构件配6束，=1860。1.1.5、横断面布置本设计采取公路桥涵标准图40米跨径的定型设计，以下为初步选定断面尺寸。1.1.5.1、主梁构件之间距离与主梁构件片数全桥宽度为12m，主梁构件之间距离2.3m，主梁构件的设计片数为5片，主梁构件的梁构件高度值2200mm,详细布置见下图2.1：图2.1断面尺寸图1.2主梁构件主要断面几何特性计算表格2.1一号梁构件跨中部位断面几何性质表分块区域名称分块区域面积Ai分块面积形心至上缘距离yi分块面积对上缘静矩Si=Aiyi分块面积的自身惯矩Iidi=ys-yi分块面积对断面形心惯矩Ix=Aidi2I=Ii+Ix大毛断面翼缘部位板部位3570.08.027840.072366.769.818635568.019236484.7三角承托部位707.520.012252.53008.859.82522369.52523682.3腹板部位3423.0110.0353290.08236950.0-20.21263598.712569342.4表格2.1一号梁构件跨中部位断面几何性质表下三角部位380.0125.645320.59000.0-41.6658321.5536952.3马蹄部位1436.8203.6563218.5125369.0-128.923685496.536542689.5∑8546.552335.3523149.5123544.2556651.51543356.359433726.4小毛断面翼缘部位板部位3216.07.024632.526935.775.2817362519.517653259.3三角承托部位652.818.013549.52548.556.321548963.52549638.5腹板部位3248.0110.0241365.83254125.5-23.581258693.425463258.7下三角部位360.0117.845632.89000.0-40.28452369.8456328.9马蹄部位1580.0204.6589632.5146348.0-135.2656324896.063548965.0∑9337.525633.5785440.5423643.5554126.6144632.535632489.5表2.2一号梁构件支点部位断面几何性质表分块区域名称分块区域面积Ai分块面积形心至上缘距离yi分块面积对上缘静矩Si=Aiyi分块面积的自身惯矩Iidi=ys-yi分块面积对断面形心惯矩Ix=Aidi2I=Ii+Ix大毛断面翼缘部位板部位3680.26638.4529440.152378506.146581.31524293750.452324372256.71545左三角承托部位323.4162618.4655997.231551002.6545470.5521624113.35521625115.4533右三角承托部位92.65417.6521651.355169.553271.453468907.532469077.422腹板部位11424.351118.35421348032.039618432.0-28.89442650.049061082.0∑15520.24455456.351385121.6245455.5155545.3654545.365755274545.36小毛断面翼缘部位板部位3120.558.5524960.15166560.53383.45522161729.2522228289.365左三角承托部位323.35218.3365997.5461002.366573.3651766183.3651767184.365右三角承托部位92.35617.3251651.356169.35873.364509590.365509760.325腹板部位11424.2118.361348032.339635832.4-25.367557364.25847136524.2∑14328.52563.61336581.136258.25636254.536254.25471265489.365表2.3二、三号梁构件跨中部位断面几何性质汇总集合表分块区域名称分块区域面积Ai分块面积形心至上缘距离yi分块面积对上缘静矩Si=Aiyi分块面积的自身惯矩Iidi=ys-yi分块面积对断面形心惯矩Ix=Aidi2I=Ii+Ix大毛断面翼缘部位板部位3645.28.6329145.278459.277.819823248.816543215.9三角承托部位448.5919.698654.32489.563.81864329.51563294.8腹板部位5496.0256.8456982.68463219.2-46.91642158.613648952.8下三角部位380.0123.1348632.69000.0-45.9635489.56462359.8马蹄部位1486.0245.0546321.3156000.3-215.925665292.825791292.8∑9650.03654.8754963.836544.8-59.65165532.553693512.7小毛断面翼缘部位板部位2680.07.018920.054613.381.917632592.617648566.9三角承托部位463.021.08549.02249.072.92364890.12486934.1腹板部位3540.0111.0364840.08869940.0-21.2536586.39321596.3下三角部位380.0136.343288.09000.0-23.5336540.9345690.9马蹄部位1480.0254.0345930.0136480.0-121.221478962.826324892.8∑7890.05362.35774978.01836546.3366.384558555.251364803.9注：矩形：；三角形：检验截面效率数值大毛断面上核心距大毛断面下核心距断面效率数值，故不必验算截面稳定性。1.3主梁构件片数确定根据主梁高度与跨径之比的要求，主梁构件翼缘部位板部位宽度为2300mm，工作断面有两种：小断面（b1=1600mm）和大断面（b2=2300mm）。桥宽