文档介绍：编号
无锡太湖学院
本科生毕业设计(论文)

题目:混凝土结构增加截面法加固方法研究

土木工程学院土木工程专业
学号
学生姓名
指导教师
二〇一二年六月
题目:混凝土结构增加截面法加固方法研究
摘要
当今国内外建筑物加固改造业发展非常迅速,建筑业重心也在发生着转变,增大截面法是一种广泛应用且经济有效的加固方法。本文分析了增大截面加固法的特点、适用范围以及加固之后的受力特点,阐述了混凝土增大截面加固的构造规定及施工关键技术,研究成果有利于该技术的推广使用。加大截面法作为一种有效的加固方法而被广泛地应用在加固工程中。本文在介绍梁增大截面的加固设计方法,及保证加固后的混凝土梁能整体工作所必须的构造措施和施工工艺的同时,还介绍了在使用阶段钢筋应力的计算及控制,以推广增大截面加固法的应用。当前的一些钢筋混凝土梁和板由于各种原因,出现了功能性的改变,为协助加固设计技术人员贯彻实施新规范,提高对钢筋混凝土受弯构件的增大截面加固法的认识,对已有RC受弯构件的增大截面加固设计方法从设计、施工方面作了分析研究,并进行了案例计算,以促进钢筋混凝土加固改造行业有序发展.
关键词:钢筋混凝土构件;加固方法;增大截面法

ABSTRACT
Based on theoretical analysis, the sectionincreased method of RC structures flexural member is discussed in the essay, the construction method of steelbonded technique is introduced, and a practical project is also calculated. The design method is useful, which provides reference to similar engineering applications.
In the old method of bridge reinforcement, increading cross-section reinforcement technology is simple and convenient construction,and under certain conditions it bine to transform or arch bridge on the replacement of the packing, which meet the increased demand of load capacity and durability. But the design and calculation methods of increasing cross-section of reinforcement ponent are inadequate,therefore it is necessary in-depth to study the design and calculation methods of the technical of increasing section reinforcement. The main contents of this paper are as followings:
By analyzing the increasing cross-section of the pression member reinforced ponents of the bending characteristics, we get the the pression criterion of size pression on the bilateral and unilateral reinforcement. Meanwhile,we can get the calculation formulas of size pression on the bilateral and unilateral reinforcement.
Throughresearching shrinkage and creep of new concreteon increasing cross-section of reinforced pression zone flxural menbers, we can get the calculation methods of the shrinkage and creep of new concrete.
Keywords:reinforced