论文总字数：58192字

摘 要

本毕业设计工程为东海县某科创园厂房设计。拟建工程属于丙类建筑，平面为类L形，总建筑面积约为5702m²，建筑层数为5层，建筑高度23.80m。根据拟建建筑的使用功能，结构受力特点及场地条件，采用钢筋混凝土框架结构体系；因层数较低，地基土的承载力可以满足承载力要求和沉降要求，基础采用柱下独立基础。

本工程手算部分选取了第③轴线进行计算，在对结构选型及布置后，估算了构件的截面尺寸，再进行荷载计算，其中水平地震荷载作用下运用底部剪力法，再运用弯矩分配法计算框架在恒载、0.5（雪 活）竖向荷载作用下内力，运用D值法计算风载、水平地震作用下的内力；对梁端弯矩调幅后，考虑三种一般组合和一种考虑地震作用下的组合进行内力组合计算；再根据内力组合结果，进行梁柱截面配筋计算；之后对采用板式楼梯、双向板楼板以及对柱下独立基础进行配筋计算。

关键词：框架结构 荷载计算 内力计算 配筋计算 抗震设计

Design of a plant in a science and technology park in Donghai County

Abstract

This graduation project is designed for a plant in a science and technology park in Donghai County. The proposed project belongs to the category C building, the plane is L-shaped, the total construction area is about 5702m2, the number of building floors is 5 and the building height is 23.80m. According to the use function of the proposed building, structural stress characteristics and site conditions, a reinforced concrete frame structure system is adopted; due to the low number of layers, the bearing capacity of the foundation soil can meet the bearing capacity and settlement requirements, and the foundation adopts an independent foundation under the column.

In the manual calculation part of this project, the third axis was selected for calculation. After the structure selection and layout, the section size of the member was estimated, and then the load calculation was performed. Among them, the bottom shear method was used under the horizontal seismic load, and then the bending moment was used. The distribution method calculates the internal force of the frame under constant load, 0.5 (snow live) vertical load, and uses the D value method to calculate the internal force under wind load and horizontal earthquake. After adjusting the bending moment of the beam end, three general combinations and One kind considers the combination under the action of earthquake to calculate the internal force combination; then according to the internal force combination result, the beam and column section reinforcement calculation is carried out; afterwards, the slab stairs, two-way slab floor slab and the independent foundation under the column are calculated.

Key Words: Frame structure; Load calculation; Internal force calculation; Reinforcement calculation; Seismic design

目 录

摘 要 I

Abstract II

第一章 结构选型与布置 1

1.1 工程概况及设计资料 1

1.1.1 工程概况及结构选型 1

1.1.2 设计资料 1

1.2 结构布置 4

第二章 计算简图及荷载计算 6

2.1计算单元选择 6

2.2 确定计算简图 6

2.3 构件材料选择 7

2.4 构件截面尺寸估算 7

2.4.1 框架柱截面初估 7

2.4.2 梁截面尺寸初选 8

2.4.3 楼板厚度初选 8

2.5 荷载计算 8

2.5.1 屋面横梁竖向线荷载标准值 8

2.5.2 楼面横梁竖向线荷载标准值 9

2.5.3 屋面框架节点集中荷载标准值 10

2.5.4 楼面框架节点集中荷载标准值 11

2.5.5 风荷载计算 12

2.5.6 地震作用计算 13

第三章 框架内力计算 19

3.1 恒载作用下的框架内力 19

3.1.1 弯矩分配系数 19

3.1.2 杆件固端弯矩 21

3.1.3 节点不平衡弯矩 21

3.1.4 内力计算 22

3.2 活载作用下的框架内力 26

3.3 风荷载作用下的位移及内力计算 27

3.3.1风荷载作用下框架侧移计算 27

3.3.2风荷载作用下框架内力计算 27

3.4 地震作用下横向框架内力计算 30

3.4.1 0.5（雪 活）重力荷载作用下框架内力计算 30

3.4.2水平地震作用下横向框架内力计算 35

第四章 框架内力组合 38

4.1 弯矩调幅 38

4.2 框架梁、柱的内力组合 39

4.3框架梁、柱的控制截面及最不利内力 39

第五章 框架梁、柱截面设计 49

5.1 框架梁的配筋计算 49

5.2 框架柱的配筋计算 56

第六章 楼梯结构设计 62

6.1 梯段板计算 62

6.2 休息平台板计算 63

6.3 梯段梁TL1计算 64

第七章 楼面板设计 65

7.1 设计资料 65

7.2 楼面板的计算 65

7.2.1 求支座中点最大弯矩 65

7.2.2 A区格 66

7.2.3 B区格 67

7.2.4 C区格 68

7.2.5 D区格 69

7.2.6 E区格 70

7.2.7 F区格 71

7.2.7 G区格 72

7.2.7 H区格 73

第八章 基础设计 75

8.1荷载计算 75

8.2 确定基础底面积 76

8.3 基础结构设计 78

第九章 电算与手算对比 82

参考文献 87

致谢 89

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