预应力混凝土框架梁挠度控制实用方法探讨  

Exploration of Practical Methods for Deflection Control of Prestressed Concrete Frame Beams

作　　者：任小莉 李灵 翁月霞 

机构地区：[1]绵阳城市学院建筑工程学院,四川绵阳621000

出　　处：《混凝土世界》2022年第9期91-94,共4页China Concrete

摘　　要：挠度控制是影响结构安全性的关键因素之一,我国现行规范中给出的挠度计算公式参数较多,使得挠度计算繁琐复杂。本文主要概括了部分挠度控制的预防措施和简化的挠度计算公式,主要概述的挠度简化计算方法是“荷载比值法”,并用已建工程对该方法进行验证,来证实该方法的可靠性。该方法能有效的把复杂的挠度计算公式化繁为简,极大地促进预应力混凝土技术的发展。Deflection control is one of the key factors affecting structural safety,and the number of parameters in the deflection calculation formulae given in our current code makes deflection calculation cumbersome and complex.This paper outlines some of the precautionary measures for deflection control and simplified deflection calculation formulas.The main deflection simplification method outlined in this paper is the"load ratio method",and the reliability of this method is confirmed by verifying the method with constructed projects.The method effectively simplifies the complex deflection calculation formulae and contributes significantly to the development of prestressed concrete technology.

关 键 词：预应力混凝土 挠度控制 刚度计算 

分 类 号：TU378.4[建筑科学—结构工程]