框架结构毕业设计(附CAD图纸).doc

毕业设计 学号： 姓名： 林晓光 班级： 10土木二班 摘要 本设计共9层，建筑设计部分任务书已给出，结构设计部分主要包含以下内容： 首先选取第二层、第三层及天面层楼盖进行楼板和次梁的配筋计算，某一楼板采用塑性法计算，其它楼板和所有次梁均采用弹性法进行计算，手算了部分楼板和次梁，其余的利用天正或结构力学求解器辅助计算；并设计了第三层楼梯。 接着计算了各框架梁柱的线刚度和D值，求出横向框架所受水平荷载以及在水平荷载作用下的位移，为满足抗震要求，验算了结构的剪重比和刚重比。 选取①轴框架，计算反弯点高度，进而求出①轴框架在水平荷载作用下的内力，画出内力图。 利用直捷分层法计算①轴框架在竖向荷载作用下的梁柱端弯矩，进而求出梁柱剪力和框架柱的轴力。 对框架梁在竖向荷载作用下的弯矩进行调幅，接着进行内力组合，承载力计算时注意了抗震调整及“强剪弱弯”。 组合框架柱在各种荷载作用下的内力，验算轴压比，进行“强柱弱梁、强剪弱弯”调整，对7种内力组合均计算了正截面承载力和斜截面承载力。 最后简单验算了梁柱节点。 结尾附上PKPM对本设计的建模计算结果。 关键词：框架结构、内力计算、配筋、位移计算、抗震Abstract The design includes 9 floors, the part of architectural design has benn given in the descriptions, and the part of the structural design mainly includes the following content: Firstly selecting the second floor, third floor and the roof to calculate the beams and slabs, one of the slabs is calculated by the plastic method, the others and all fo the beams are calculated by elastic method, portion calculated by hand and the others calculated by Tianzheng or Structural mechanics solver. Here I also designed the stairs of the third floor. Then calculating the line stiffness and D value of the frame beams and columns, obtained the horizontal loads and displacements under horizontal loads of the transverse frame. To meet the requirements of the seismic, checks the shear-weight ratio and the ratio of rigidity-to-gravity of the structure. Selecting ①-Axis framework to calculate the height of inflection point, and then obtaine the internal force under the horizontal loads, then draw the internal force diagram. Using the direct layering methord to calculate the bending moment of the front end of the frame beams and columns in ①-Axis, and then beg out the shear force of the frame beams and columns and the axial force of the columns. Amplituding the bending moment of the frame beams under the vertical loads, followed by a combination of internal forces,when calculating bearing capacity pay at