摘 要

本文主要是对徐州市某学校教学楼进行设计，主体结构为四层的框架结构，第四层设计为抽柱大空间结构。本文总共分为八章，第一章为结构选型与布置：选型按照任务要求为框架结构，选型后对结构进行平面布置；第二章为确定计算简图：简化计算简图，并且进行荷载计算；第三章为框架内力计算：按照已经算出的荷载用弯矩分配法对结构在恒载、活载、风荷载、雪荷载、地震荷载作用下梁柱截面所受内力；第四章为框架结构内力组合：将各种荷载按最不利情况组合，并且乘以调幅系数；第五章 框架梁、柱截面设计：按照第四章的内力不利组合对框架柱、梁进行截面尺寸、配筋设计，且验算最小配筋率；第六章 楼体结构设计：主要围绕荷载对梯段板、休息平台、梯段梁进行设计；第七章 楼板计算：按照规范查找板上活载和恒载，然后对板的截面尺寸和配筋进行计算；第八章 基础计算：计算基础承受的荷载，确定基础底面积并验算基础沉降问题，最后对基础进行结构设计并验算配筋。

关键词：弯矩分配法、荷载组合、内力计算、最不利位置

Design of a School Teaching Building in Xuzhou City

Abstract

This article is mainly designed for the teaching building of a school in Xuzhou City. The main structure is a four-story frame structure, and the fourth layer is designed as a large column space structure. This article is divided into eight chapters. The first chapter is the structure selection and arrangement: the selection is based on the task requirements for the framework structure, after the selection of the structure for the layout of the plane; the second chapter is to determine the calculation of the map: simplify the calculation of the map, and The load calculation is carried out. In the third chapter, the internal force of the frame is calculated. According to the calculated load, the internal forces of the beam-column section subjected to the dead loads, live loads, wind loads, snow loads, and earthquake loads are calculated by the bending moment distribution method. The chapter describes the internal force combination of the frame structure: the various loads are combined in the most unfavorable condition and multiplied by the amplitude modulation coefficient; Chapter 5 Frame Beam and Column Section Design: According to the unfavorable combination of internal forces in Chapter 4, the section size of the frame column and beam, Reinforcement design, and check the minimum reinforcement ratio; Chapter VI: Structural design of the floor structure: mainly design the load on the floor slab, rest platform, and the floor beam; Chapter 7 floor calculation: the live load and Dead load, then calculate the section size and reinforcement of the board; Chapter 8 basic calculation: Calculate the underlying load, determine the base area and check the settlement of the foundation. After the basic design of the structure and check the reinforcement.

Key words：Moment distribution method、Load combination、internal force calculation、 worst position

目 录

目 录 4

第一章 结构选型与布置 6

1.1结构选型与布置 6

第二章 确定计算简图 7

2.1确定计算简图 7

2.2 梁、柱截面尺寸 7

2.3材料强度等级 7

2.4荷载计算 7

第三章 框架内力计算 17

3.1 恒载作用下的框架内力 17

3.2 活载作用下的框架内力 24

3.3 风荷载作用下内力计算 52

3.4 地震作用下横下框架的内力计算 56

第四章 框架内力组合 58

4.1 调幅与荷载组合 58

第五章，框架梁、柱截面设计 72

5.1 框架梁、柱截面设计 72

第六章 楼梯结构设计 94

6.1梯段板计算 95

6.2休息平台板计算 97

6.3梯段梁TL1计算 98

第七章 楼板计算 100

7. 1跨中最大弯矩 101

7. 2求支座中点最大弯矩 102

7.3 A区格 102

7.4 E区格 104

第八章 基础设计 106

8. 1荷载计算 107

8. 2确定基础底面积 108

8.3地基变形验算 113

参考文献 120

第一章 结构选型与布置

1.1结构选型与布置

第二章 确定计算简图

2.1确定计算简图

2.2 梁、柱截面尺寸

2.3材料强度等级

2.4荷载计算

第三章 框架内力计算

3.1 恒载作用下的框架内力

3.2 活载作用下的框架内力

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