摘 要

［关键词］ 混凝土框架结构；结构设计；内力分析

Design of a bilingual office called Huapeng in Haian

Abstract

This graduation project is designed for Huapeng Mansion office building, located in Haian City, with a total height of 18.3 meters and a total of 5 floors. The design life of the project is 50 years, the seismic fortification intensity is 7 degrees, the basic acceleration value of the design is 0.10g, the design earthquake is divided into the first group, and the seismic grade of the frame is three levels. KJ-8 is selected for the design of concrete frame structure in the calculation book, which includes: structure selection and layout, determination of calculation sketch, calculation of frame force (dead load, live load, wind load and earthquake), combination of frame force, beam-column section design and staircase structure design. Cast-in-place floor slab and foundation design, and computer comparison. Firstly, the dead load, live load, frame deadweight and wind load of KJ-8 are calculated, and the lateral stiffness D value of frame column is calculated. Then, the natural vibration period is calculated by the horizontal displacement of frame. Then, the effect of each floor and the standard value of seismic shear force are calculated to check the elastic lateral displacement between storeys. The moment distribution method is mainly used in the calculation of frame forces. According to the general method of structural mechanics, the moment distribution coefficient of each node and unbalanced moment of each node are calculated, and then the second distribution is carried out. Excle table is used in this part, the combination of frame forces and the design of beam-column section. The slab staircase used in the staircase is composed of a staircase board, a rest platform, a platform beam and a structural column. Typical slabs are only selected for calculation, and the slabs are not calculated for reinforcement according to the calculated approximate floor area. Independent foundation under column is adopted for foundation. At last, we use PKPM to compute, compare slightly, and improve the calculation book.

[Key words] : Design of concrete structure;Structural design; Internal force analysis

目 录

第一章 结构设计 1

1.1结构选型和布置 1

1.1.1 结构选型 1

1.1.2 结构布置 1

第二章 确定计算简图 3

2.1 计算简图说明 3

2.2 梁柱截面尺寸 3

2.3 荷载计算 6

2.4风荷载 9

2.5地震作用 10

第三章 框架内力计算 15

3.1 恒载作用下的框架内力 15

3.1.1弯矩分配系数 15

3.1.2杆件固端弯矩 16

3.1.3纵梁引起的附加弯矩 17

3.1.4内力计算 18

3.2 活载作用下的框架内力 23

3.2.1梁固端弯矩 23

3.2.2纵梁偏心引起的柱端附加弯矩 24

3.2.3活荷载的最不利布置 24

3.2.4各节点不平衡弯矩 25

3.2.5内力计算 25

3.3风荷载作用下内力计算 31

3.4地震作用下横向框架的内力计算 35

3.4.1 0.5（雪加活）重力荷载作用下横向框架的内力组合 35

3.4.2 地震作用下横向框架的内力计算 44

第四章 框架内力组合 48

4.1弯矩调幅 48

4.2内力组合 50

第五章 框架梁柱截面设计 61

第六章 楼体结构设计 78

6.1梯段板计算 79

6.2休息平台板计算 81

6.3梯段梁计算 81

第七章 现浇楼面板设计 82

7.1跨中最大弯矩 83

7.2求支座中点最大弯矩 83

7.3 各区格计算 84

第八章 基础设计 91

8.1 荷载计算 91

8.2确定基础底面积 92

8.3 抗震验算 94

8.4地基变形验算 96

8.5基础结构设计 96

第九章 软件分析结果与手算结果比较 101

参考文献（References） 106

致谢 108

第一章 结构设计

1.1结构选型和布置

1.1.1 结构选型

该海安华鹏大厦办公楼结构设计选用钢筋混凝土框架结构体系。

1.1.2 结构布置

图2-1 一层结构布置图

第二章 确定计算简图

2.1 计算简图说明

2.2 梁柱截面尺寸

1.梁截面尺寸估算依据

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