摘 要

第一章 工程概况 4

1.1 设计题目 4

1.2 设计要求 4

1.3 设计资料 4

第二章 荷载统计、截面初选及确定计算简图 5

2.1 荷载统计 5

2.1.1 活荷载标准值统计 5

2.1.2恒载计算 5

2.2梁截面初选 8

2.2.1屋面梁初选 8

2.2.2楼面梁截面初选 22

2.3框架柱截面初选 36

2.3.1框架中柱 36

2.3.1框架边柱 40

2.4确定框架柱计算简图 44

第三章 内力计算 47

3.1确定各节点弯矩分配系数 47

3.2恒、活载作用标准值 50

3.3恒载标准值作用下的内力计算 56

3.4活载标准值作用下的内力计算 64

3.5风荷载标准值作用下的内力计算 72

3.6地震作用下的内力计算 84

第四章 内力组合 95

4.1组合说明 100

4.2内力组合 101

第五章 梁柱截面验算 120

5.1 柱截面验算 120

5.1.1底层柱截面验算 121

5.1.2标准层柱截面验算 125

5.1.3顶层柱截面验算 129

5.2梁截面验算 133

5.2.1梁截面几何特性 133

5.2.2 FE梁验算 134

5.2.3 ED梁验算 135

5.2.3 DB梁验算 137

第六章 节点设计 138

6.1梁柱连接设计 138

6.1.1 边柱B与梁节点设计 138

6.1.2 边柱F与梁节点设计 141

6.1.3 中柱D与梁节点设计 144

6.1.4 中柱E与梁节点设计 149

6.2 主次梁节点设计 151

6.3钢柱的拼接 152

6.3.1螺栓验算 154

6.3.2焊缝验算 155

6.4 柱脚设计 155

6.4.1柱脚底板设计 157

6.4.2隔板计算 159

6.4.3 靴梁计算 159

第七章 楼板设计 162

7.1板筋计算 162

7.2板内力计算 164

7.3配筋计算 168

第八章 楼梯计算 171

8.1踏步板计算 171

8.2斜梁计算 172

8.3平台梁计算 175

8.4刚度验算 176

第九章 基础设计 176

9.1地基基础设计等级 176

9.2工程地质条件 176

9.3 F柱独立基础设计 177

9.4 B柱独立基础设计 179

9.4 E柱独立基础设计 182

9.4 D柱独立基础设计 184

结语 187

参考文献 188

致谢 189

摘要

本工程为中建绿投武汉经济开发区钢结构住宅楼，采用钢框架结构，主体为六层，本地区抗震设防烈度为6度，场地类别为II类场地。主导风向为西北，基本风压 0.35kN/m，基本雪压0kN/m。楼﹑屋盖分别采用现浇钢筋混凝土结构。

本设计贯彻“实用、安全、经济、美观”的设计原则。按照建筑设计规范，认真考虑影响设计的各项因素。根据结构与建筑的总体与细部的关系。本设计主要进行了结构方案中横向框架第5轴抗震设计。在确定框架布局之后，先计算竖向荷载（恒载及活荷载）作用下的结构内力。接着进行了层间荷载代表值的计算,然后按底部剪力法计算水平风荷载和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）。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，平台梁等构件的内力和配筋计算及施工图绘制。对楼板进行了配筋计算，本设计采用独立基础。

整个结构在设计过程中，严格遵循相关的专业规范的要求，参考相关资料和 有关最新的国家标准规范，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： 钢框架结构，抗震设计，荷载计算，内力计算

The project is a steel structure residential building of CSCEC green investment Wuhan Economic Development Zone, which adopts steel frame structure, with the main body of six floors. The seismic fortification intensity of this area is 6 degrees, and the site category is class II. The dominant wind direction is northwest with basic wind pressure of 0.35kN/m and basic snow pressure of 0kN/m. Cast in place reinforced concrete structure is adopted for the building and roof respectively.

This design implements the design principle of "practicality, safety, economy and beauty". According to the architectural design code, carefully consider the factors that affect the design. According to the overall and detailed relationship between structure and building. In this design, seismic design of the 5th axis of the transverse frame is mainly carried out. After determining the layout of the frame, the internal force of the structure under the vertical load (dead load and live load) is calculated first. Then, the representative value of the interlayer load is calculated, and the magnitude of the horizontal wind load and the earthquake load is calculated by the bottom shear method, and then the internal force (bending moment, shear force and axial force) of the structure under the horizontal load is calculated. Find out the most unfavorable group or combination of internal forces. Select the safest result to calculate the reinforcement and draw. In addition, the design of indoor stairs in the structural scheme is also carried out. The internal force, reinforcement calculation and construction drawing of platform slab and platform beam are completed. The reinforcement of the floor is calculated, and the independent foundation is adopted in this design.

During the design process of the whole structure, strictly follow the requirements of relevant professional specifications, refer to relevant materials and the latest national standards and specifications, and comprehensively and scientifically consider all aspects of the design. In a word, applicability, safety, economy and convenience are the principles of this design. The design of reasonable and feasible building structure scheme is an important basis for site construction.