西安达泰电子公司研发楼设计(B方案)
摘 要
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)。接着利用弯矩二次分配法计算竖向荷载(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。本设计采用条形基础,并对基础进行了受力和配筋计算。
整个结构在设计过程中,严格遵循相关的专业规范要求,参考相关资料和有关最新国家标准规范。对设计的各个环节进行综合全面的科学性考虑。总之,适用、安全、经济、使用方便是本设计的原则。设计合理可行的建筑结构方案是现场施工的重要依据。
关键词:框架;结构设计;抗震设计 ;内力计算;计算配筋
v
Xi 'an datai electronics research building design( B)
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 The bending moment two methods of distribution, 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. This design the strip foundation,and on the basis of stress and reinforcement calculation..
The whole structure of the design process,in strict compliance with the relevant professional standard,reference to relevant information and the lastest national standards and specifications,and design of the various components of a comprehensive scientific consideration.In short,application,security,economic and user-friendly design is the principle.Design reasonable and workable structure of the program is the construction site of the important basis for the construction.
Keywords : frames;structural design;anti-seismic design;internal force calculation;calculation reinforcement
v
目 录
前 言..................................................................... i 西安达泰电子公司研发楼设计(B方案) ....................................... ii 摘 要 ...................................................................... v Abstract .................................................................. vi 主 要 符 号 表 .............................................................. 1 1 工程概况及建筑设计 ....................................................... 2
1.1工程概况 .............................................................. 2 1.2建筑设计 .............................................................. 2
1.2.1总平面设计 ....................................................... 2 1.2.2立面设计 ......................................................... 2 1.2.3技术措施及用料说明 ............................................... 3
2 结构布置及计算简图 ....................................................... 4
2.1柱网布置 .............................................................. 4 2.2框架结构承重方案的选择 ................................................ 4 2.3 梁、柱截面尺寸的初步确定 .............................................. 5 3 框架侧移刚度计算 ......................................................... 7
3.1横梁线刚度的计算 ...................................................... 7 3.2柱线刚度的计算 ........................................................ 7 3.3柱侧移刚度的计算 ...................................................... 7 4 重力荷载代表值计算 ....................................................... 9
4.1资料准备 .............................................................. 9 4.2梁、柱、墙及楼屋面重力荷载计算 ....................................... 10 4.3 荷载分类 ............................................................. 10 4.4重力荷载代表值 ....................................................... 11 5 横向水平荷载作用下框架结构的内力和侧移计算 .............................. 12
5.1横向自振周期的计算 ................................................... 12 5.2水平地震作用及楼层地震剪力的计算 ..................................... 12 5.3多遇水平地震作用下的位移验算 ......................................... 14
I
5.4水平地震作用下框架内力计算 ........................................... 15 6 竖向荷载作用下框架结构的内力 ............................................ 18
6.1计算单元的选择确定 ................................................... 18 6.2荷载计算 ............................................................. 19
6.2.1恒荷载作用下柱的内力计算 ........................................ 19 6.2.2活荷载作用下柱的内力计算 ........................................ 20 6.3.1横向框架弯矩计算 ................................................ 22 6.3.2梁端剪力和柱轴力计算 ............................................ 26 6.4框架梁的内力组合 ..................................................... 27
6.4.1 结构抗震等级 ................................................... 27 6.4.2 框架梁内力组合 ................................................. 27 6.4.3 跨间最大弯矩和截面剪力设计值的计算 ............................. 30 6.4.4 梁端剪力调整 ................................................... 32 6.5框架柱的内力组合 ..................................... 错误!未定义书签。 6.6柱端弯矩设计值的调整 ................................................. 39
6.6.1 A柱 ............................................................ 39 6.6.2 B柱 ............................................................ 40 6.7柱端剪力组合和设计值的调整 ........................................... 41 7 截面设计 ................................................................ 43
7.1框架梁 ............................................................... 43
7.1.1梁正截面受弯承载力计 ............................................ 43 7.1.2梁斜截面受剪承载力计算 .......................................... 44 7.2框架柱 ............................................... 错误!未定义书签。
7.2.1柱截面尺寸验算 .................................. 错误!未定义书签。 7.2.2柱正截面承载力计算 .............................................. 49 7.2.3柱斜截面受剪承载力计算 .......................................... 54 7.3框架梁柱节点核芯区截面抗震验算 ....................................... 56 8 楼板设计 ................................................................ 59
8.1设计参数 ............................................................. 57 8.2按塑性理论计算 ....................................................... 57
II
8.2.1弯矩计算 ........................................................ 57 8.2.2配筋计算 ........................................................ 59
9 楼梯设计 ................................................................ 61
9.1梯段板设计 ........................................................... 61
9.1.1荷载计算 ........................................................ 61 9.1.2截面设计 ........................................................ 61 9.2平台板设计 ........................................................... 62
9.2.1荷载计算 ........................................................ 62 9.2.2截面设计 ........................................................ 62 9.3平台梁设计 ........................................................... 62
9.3.1荷载计算 ........................................................ 63 9.3.2截面设计 ........................................................ 63
10 基础设计 ................................................................ 69 11 设计心得 ............................................................... 71 致谢 ...................................................................... 72 参考文献................................................................... 73 毕业设计(论文)知识产权声明 ............................................... 74 毕业设计(论文)独创性声明 ................................................. 75 附录 ...................................................................... 76
7
III