摘要
本文分析了体外预应力混凝土梁在动力荷载作用下的振动特性。对AyahoMiyamoto给出的公式进行了修正和扩充,推导出包括单折线型、双折线型、直线型3种线型布置下的体外预应力混凝土简支梁的自振频率计算公式,针对各种因素对体外预应力混凝土梁振动频率的影响加以探讨,提出一些体外预应力梁体系防振动的有效措施。
Some vibration issues of externally prestressed concrete beams under dynamical loads are discussed in the paper. The formula presented by Ayaho Miyamoto is improved and extended. Some formulae for frequency calculation are given when external tendons are arranged in three different configurations. Many factors are considered in the analysis of the beam vibration frequency, and some effective antivibration measures are provided in the end.
出处
《地震工程与工程振动》
CSCD
北大核心
2005年第2期55-61,共7页
Earthquake Engineering and Engineering Dynamics
关键词
体外预应力
振动
频率
疲劳
结构设计
external prestress
vibration
frequency
fatigue
structure design
