本科毕业设计--青岛春阳写字楼设计.docVIP

本科毕业设计(论文)--青岛春阳写字楼设计 本设计主要进行了结构方案中横向框架的抗震设计在确定框架布局之后先进行了层间荷载代表值的计算接着利用顶点位移法求出自震周期进而按底部剪力法计算水平地震荷载作用下大小进而求出在水平荷载作用下的结构内力弯矩剪力轴力接着计算竖向载恒载及活荷载作用下的结构内力找出最不利的一组或几组内力组合选取 最安全的结果计算配筋并绘图此外还进行了结构方案中的室内楼梯的设计完成了平台板梯段板平台梁等构件的内力和配筋计算及施工图绘制 Design of Qingdao Chunyang Office Abstract The purpose of the design is to do the anti-seismic design in the longitudinal frames When the directions of the frames is determined firstly the weight of each floor is calculated Then the vibrate cycle is calculated by utilizing the peak-displacement method then making the amount of the horizontal seismic force can be got by way of the bottom-shear force method The seismic force can be assigned according to the shearing stiffness of the frames of the different axis Then the internal force bending moment shearing force and axial force in the structure under the horizontal loads can be easily calculated After the determination of the internal force under the dead and live loads the combination of internal force can be made by using the Excel software whose purpose is to find one or several sets of the most adverse internal force of the wall limbs and the coterminous girders which will be the basis of protracting the reinforcing drawings of the components The design of the stairs is also be approached by calculating the internal force and reinforcing such components as landing slab step board and landing girder whose shop drawings are completed in the end Keywords framesstructural designanti-seismic design 主要符号表 γG 永久荷载的分项系数 γQ 可变荷载的分项系数 T 结构自振周期 FEk 结构总水平地震作用标准值 Geq 地震时结构构件的重力荷载代表值等效总重力荷载代表值 α 水平地震影响系数最大值 fy 普通钢筋的抗拉强度设计值 fy 普通钢筋的抗强度设计值 c 混凝土保护层厚度 h 截面高度 h0 截面有效高度 hf T 形或 I 形截面受拉区的翼缘高度 hf T 形或 I 形截面受压区的翼缘高度 AS 受拉区纵向非预应力钢筋的截面面积 AS 受压区纵向非预应力钢筋的截面面积 VCS 构件斜截面上混凝土和箍筋的受剪承载力设计值 aS 纵向非预应力受拉钢筋合力点至截面近边的距离 aS 纵向非预应力受压钢筋合力点至截面近边的距离 η 偏心受压构件考虑二阶弯矩影响的轴向力偏心距增大系数 λ 计算截面的剪跨比 ρ 纵向受力钢筋的配筋率 ρsv 竖向箍筋水平箍筋或竖向分布钢筋水平分布钢筋的配筋率