某学校办公楼（西楼）结构设计

^论文编号:TM048   ^论文字数:16882,页数:115  附CAD施工图

摘 要
   本工程为某学校办公楼，建筑面积9743.57平方米，建筑层数5层，建筑耐火等级二级，抗震设防烈度6度，设计适用年限50年。结构选型为现浇钢筋混凝土框架结构。计算选取4轴框架进行计算，初步估算主次梁及柱截面尺寸，对荷载计算后，用分层法计算出竖向荷载作用下内力；通过D值法求出水平风载作用下内力，并对内力进行最不利组合，从而进行截面设计。同时设计中还包含了对主次梁、楼板、连续梁的设计。基础采用桩基，柱下多为单桩承台。

关键词:框架;荷载;主梁;次梁; 基础

The structural design of
a school’s office building
Abstract
This project is the office building of a school, floor space 9743.57 square meters,5 floors, building fireproof rank is second-level, the earthquake resistance fortification intensity is 6 degrees, the design is suitable the age limit 50 years. The structure shape is the cast-in-place reinforced concrete portal frame construction. The computation selects 4 axis frames to carry on the computation, estimates the main secondary girder and the column section size initially, after load computation, calculates under the vertical load function with the delamination the endogenic force; Extracts under the horizontal wind load function through the D value law the endogenic force, and carries on the most disadvantageous combination to the endogenic force, thus carries on the section design. Simultaneously designed has also contained to the main secondary girder, the floor, continuously Liang's design. The foundation uses the pile foundation, under the column many are the single relieving-type platform supported on piles.
Key words: Frames Structural；Laod；Main beam；Piece beam；Foundation

目录
摘 要 I
Abstract II
目录 III
1 绪论 1
1.1工程概况 1
1.2 屋面做法： 1
1.3 楼地面做法 1
1.4 内外墙做法 2
1.5 设计资料 2
2 框架结构布置及计算简图 4
2.1 结构承重方案选择 4
2.2 主要构件选型及尺寸初步估算 5
2.3 确定结构计算简图 
3 楼面设计 10
3.1 设计资料（以第二层楼面为例） 10
3.2 楼盖结构平面布置图（以第二层楼盖为例） 10
3.3 板的设计（按弹性理论设计） 10
4 框架内力计算 16
4.1 恒荷载计算 16
4.2 恒载下固端弯矩计算 23
4.3 框架恒载下弯矩计算 2
4.4 框架恒载下剪力、轴力计算 37
5 活（雪）荷载内力计算 41
5.1 活荷载计算 41
5.2 活载下固端弯矩计算 44
5.3 框架活载下弯矩计算 50
5.4 框架活载剪力、轴力计算 57
6 风荷载内力计算 61
6.1 风荷载计算 61
6.2 风荷载内力计算 64
6.3 各柱反弯点高度(yh)计算 67
6.4 左风荷载作用下的框架弯矩、剪力、轴力计算 69
7 内力组合 73
8 截面设计 75
8.1 梁截面设计 75
8.2 柱截面设计 83
9基础设计 95
9.1荷载计算 95
9.2单桩承载力验算 96
9.3承台计算 96
10楼梯设计 97
10.1梯段板设计 98
结束语 109
致 谢 110
参考文献 111

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