双向板肋梁楼盖设计

整理文档很辛苦,赏杯茶钱您下走!

免费阅读已结束,点击下载阅读编辑剩下 ...

阅读已结束,您可以下载文档离线阅读编辑

资源描述

混凝土综合训练一学院:建筑工程学院班级:土木13-4班姓名:王广杰学号:1323040416指导老师:曹启坤一、设计题目设计某多层工业建筑(某生产车间)的中间楼面(采用现浇钢筋混凝土双向板肋梁楼盖)二、设计内容1、结构平面布置图:柱网、支撑梁及板的布置2、双向板的强度计算3、绘制板施工图(1)、结构平面布置图;(2)、板的配筋图;三、设计资料1、楼面尺寸L1*L2=33.6*20.70(m)板厚取100mm2、生产车间的四周外墙均为240mm承重砖墙,内设钢筋混凝土柱,其截面尺寸为350mm×350mm。3、荷载(1)、楼面活荷载,单位为kq=4.52/mkN(见表一)(2)、楼面面层:水磨石地面2/65.0mkN(3)、楼盖自重:钢筋混凝土容重3/25mkN(4)、平顶粉刷:2/25.0mkN4、材料(1)、混凝土:C30(2)、钢筋:板内受力钢筋可以采用HRB400级、HRB335级,构造钢筋采用HPB300级。表43.03.54.04.55.05.531.2×18.912345632.4×19.878910111233.6×20.7013141516171834.8×21.6019202122232436.0×22.50252627282930注:L1、L2单位:米。活载题号L1*L2m)按弹性理论进行板的设计1荷载设计值板厚取100mm,活荷载kq=4.52m/kN,恒荷载kg=0.65+0.25+25x0.1=3.42m/KN,故85.55.43.1q2m/kN08.44.32.1g2m/kN93.22q2m/kN01.72gq2m/kN93.9qg2m/kN2结构平面布置图3计算跨度内跨:c0LL(轴线间距离),边跨c0LL+2200各区格板的计算跨度列于表1-1。4弯矩计算跨中最大弯矩为当内支座固定时在2gq作用下的跨中弯矩值与内支座铰接时在q/2作用下跨中弯矩值之和。支座最大负弯矩为支座固定时g+q作用下的支座弯矩,泊松比取0.2。根据不同的支撑情况,整个楼盖可以分为A,B,C,D四种区格板。A区格板:2o1oLL0.74,查附录7,周边固支时,沿L1,L2方向跨中弯矩系数分别为0.0301,0.0126,支座弯矩系数分别为-0.0708,-0.0566。周边简支时跨中弯矩系数分别为0.0633,0.0313m*k41.714.4*93.2*0696.014.4*01.7*0326.00313.0*2.00633.0)2(*)0126.0*2.00301.0(220121Nlqgm)(m*k48.414.4*93.2*044.014.4*01.7*0189.00633.0*2.00313.0)2(*)0301.0*2.00126.0(220122Nlqgm)(mkNlqgmm*05.12)(0708.00121''1'mkNlqgmm*63.9)(0566.00122''2'B区板:2o1oLL0.75,查附录7,三边固支单边简支时,沿L1,L2方向跨中弯矩系数分别为0.0354,0.0214,支座弯矩系数分别为-0.0837,-0.0729。周边简支时跨中弯矩系数分别为0.0620,0.0317m*k44.82.4*93.2*0317.0*2.0062.02.4*01.7*)0214.0*2.00354.0(221Nm)(m*k80.52.4*93.2*062.0*2.00317.02.4*01.7*)0354.0*2.00214.0(222Nm)(mkNlqgm*66.14)(0837.00121'0m1’‘mkNlqgmm*77.12)(0729.00122''2'C区板:2o1oLL0.73,查附录7,三边固支单边简支时,沿L1,L2方向跨中弯矩系数分别为0.0372,0.0208,支座弯矩系数分别为-0.0863,-0.0737。周边简支时跨中弯矩系数分别为0.0646,0.0304m*k52.814.4*93.2*0304.0*2.00646.014.4*01.7*)0208.0*2.00372.0(221Nm)(m*k57.514.4*93.2*0646.0*2.00304.014.4*01.7*)0372.0*2.00208.0(222Nm)(mkNlqgmm*69.14)(0863.00121''1'0m2’mkNlqgm*54.12)(0737.00122''D区板:2o1oLL0.74,查附录7,邻边固支(简支)时,沿L1,L2方向跨中弯矩系数分别为0.0410,0.0202,支座弯矩系数分别为-0.0960,-0.0764。周边简支时跨中弯矩系数分别为0.0633,0.0313m*k16.814.4*93.2*0313.0*2.00633.02.4*01.7*)0202.0*2.0041.0(221Nm)(m*k54.52.4*93.2*0633.0*2.00313.02.4*01.7*)041.0*2.00202.0(222Nm)(mkNlqgm*82.16)(096.00121'0''m12m’mkNlqgm*38.13)(0764.00122''各板的详细值列于下表按弹性理论计算的弯矩值ABCD01L4.144.24.144.202L5.65.65.665.662o1oLL0.740.750.730.741m7.418.448.528.162m4.485.805.575.541,m-12.05-14.66-14.69-16.821’’m-12.050-14.6902’m-9.63-12.77002’’m-9.63-12.77-12.54-13.385截面设计截面有效高度:一类环境类别板的混凝土最小保护层厚度15mm,假定选用∮10钢筋,则L1方向跨中截面的h1=100-15-5=80mm。h2=80-10=70mm,支座截面的h0=80mm。截面设计的弯矩:因楼盖周边有梁与板整浇,故所有区格的跨中弯矩及A-A支座弯矩减少20%。配筋表列于1-2中。最小配筋率验算:,/f45.0)bh(tySfA同时大于0.2%,满足要求下面以A区板L0方向弯矩计算为例2c3.14fmmN2ymm360fN518.0b查表得0.110156.08041403.140.11093.526201sbhfMc518.00157.02-1-1bs992.02-115.0ss)(260smm6.20780992.03601093.5hfMAsy6绘制配筋图

1 / 8
下载文档,编辑使用

©2015-2020 m.777doc.com 三七文档.

备案号:鲁ICP备2024069028号-1 客服联系 QQ:2149211541

×
保存成功