摘 要

本次毕业设计的内容为对安徽合肥某地的木结构别墅进行结构设计和分析。该建筑为地上三层的休闲别墅，主体高度约为13.72m。综合考虑建筑的使用功能、高度、场地条件、结构材料及施工技术等因素，选定其结构体系为轻型木结构；考虑到结构荷载较小以及建筑场地和地基岩土条件，在主体结构部分选用浅基础中的墙下条形基础，而外走廊部分采用柱下独立基础。本次设计的前期主要任务是依据项目概况进行建筑设计及建筑图的绘制，中期任务为根据完成的建筑图进行结构设计，运用SAP2000等分析软件建立有限元模型进行结构分析，并验算结构构件承载力，进行基础、楼梯工程的设计，后期主要任务为绘制施工图、编写设计说明和结构计算书。

关键词：轻型木结构；结构分析；结构计算

Structure analysis of Wooden Recreational villa

ABSTRACT

The study mainly focus on the structural design and analysis of a wooden villa in Hefei of Anhui province. The building ,with three levels on the ground, belongs to the recreational villa, about 13.72 meters. In the design it as light wood structure, many factors are considered, namely the using function, the height, site condition, structural material and construction technology. In view of the small structural load and the site condition, the study choose the strip foundation under the wall in the major structure, while selecting the single foundation under column in the corridor. In the early stage of the project, we focus on the design of architectural according to the engineering situation. Then, the finite element model was built by SAP2000 to analysis the response of structure under the load. Whether the bearing capacity can meet the criterion is also talked about in the paper. What’s more, the design also includes the foundations and stairs. Lastly, based on the design results, the construction drawings, the design specification and the structure statement are made.

Keywords: Light wood structure; Structure analysis; Structure calculation

目 录

前言…………………………………………………………………………………………………………1

1 设计基本资料 ……………………………………………………………………………………………2 1.1工程概况…………………………………………………………………………………………………2

1.2气象条件………………………………………………………………………………………………2

1.3工程地质、水文地质、场地土条件…………………………………………………………………2

1.4屋面、楼面和墙体做法………………………………………………………………………………4

1.5基本荷载………………………………………………………………………………………………5

1.6设计依据………………………………………………………………………………………………7

2 建筑设计方案………………………………………………………………………………………… …7

2.1 工程简介 ………………………………………………………………………………………………7 2.2设计依据…………………………………………………………………………………………………7

2.3 设计方案 ……………………………………………………………………………………………7

3 结构设计方案 ……………………………………………………………………………………………8

3.1 结构体系 ……………………………………………………………………………………………8

3.2结构平面设计…………………………………………………………………………………………8

4荷载计算…………………………………………………………………………………………………9

4.1永久荷载………………………………………………………………………………………………9

4.2活荷载……………………………………………………………………………………………12

5地震作用（采用底部剪力法计算）………………………………………………………………………13

5.1计算原理…………………………………………………………………………………………13

5.2剪力墙抗侧力计算………………………………………………………………………………15

6外墙计算………………………………………………………………………………………………22

6.1三楼外墙计算………………………………………………………………………………………22

6.2二楼外墙计算………………………………………………………………………………………26

6.3一楼外墙计算………………………………………………………………………………………30

7门窗过梁计算……………………………………………………………………………………………35

7.1外墙过梁计算………………………………………………………………………………………35

7.2内墙过梁计算……………………………………………………………………………………40

8梁的计算……………………………………………………………………………………………43

8.1材料选择…………………………………………………………………………………………43

8.2荷载统计…………………………………………………………………………………………43

8.3构件验算…………………………………………………………………………………………44

9柱的计算…………………………………………………………………………………………………48

9.1组合柱的计算………………………………………………………………………………………48

9.2胶合柱的计算………………………………………………………………………………………53

10楼面格栅计算…………………………………………………………………………………………56

10.1材料选择…………………………………………………………………………………………56

10.2荷载统计……………………………………………………………………………………………56

10.3构件验算……………………………………………………………………………………………56

11屋架建模计算……………………………………………………………………………………………60

11.1屋架形式……………………………………………………………………………………………60

11.2荷载计算……………………………………………………………………………………………60

11.3SAP2000建模及杆件内力…………………………………………………………………………60

11.4构件验算……………………………………………………………………………………………61

12楼梯验算…………………………………………………………………………………………………65

12.1楼梯布置……………………………………………………………………………………………65

12.2荷载计算……………………………………………………………………………………………65

12.3平台板验算…………………………………………………………………………………………66

12.4平台梁验算…………………………………………………………………………………………66

13连接节点设计和计算……………………………………………………………………………………68

13.1节点设计……………………………………………………………………………………………68

13.2荷载统计……………………………………………………………………………………………68

13.3节点验算……………………………………………………………………………………………68

14基础设计和计算…………………………………………………………………………………………70

14.1概述…………………………………………………………………………………………………70

14.2墙下条形基础验算…………………………………………………………………………70

14.3柱下独立基础验算…………………………………………………………………………………74

15施工组织设计……………………………………………………………………………………………79

15.1编制说明及依据…………………………………………………………………………………79