基于频谱图的体外预应力混凝土梁频率分析  

Analysis of the External Prestressing Concrete Beam Frequency Based on the Spectrum

作　　者：李景祥[1] 孙树宝 

机构地区：[1]内蒙古科技大学建筑与土木学院,包头014010

出　　处：《价值工程》2016年第30期94-95,共2页Value Engineering

摘　　要：体外预应力是后张预应力体系的重要分支之一。关于其加固的混凝土梁的频率研究具有十分重要的意义,通过检测结构的固有频率变化评估预应力结构的使用状况和有效预应力大小已成为工程监测界的研究重点,本文通过测得的频谱图进行体外预应力混凝土梁的频率分析,为以后工程结构频率分析提供参考。External prestressing is one of the important branch of post-tensioned prestressing system. Frequency, the study of the reinforced concrete beam is of great significance, by detecting the structure of the natural frequency changes in evaluation of the usage and effective prestress on prestressed structure has become the research focus of engineering field. Based on the measured spectrum diagram,this paper analyzes the frequency of the externally prestressed concrete beam, and provides reference for later engineering structure frequency analysis.

关 键 词：体外预应力 频谱图 频率 

分 类 号：TU317[建筑科学—结构工程]