CN

Yong Ye

Professor

Supervisor of Doctorate Candidates

Supervisor of Master's Candidates

Degree:Doctoral Degree in Engineering

School/Department:土木工程学院

Business Address:土木学科实验大楼505办公室

E-Mail:

Administrative Position:土木工程系副主任

Discipline:Structural Engineering

Paper Publications

一种梁受弯加固的钢丝绳预应力张拉控制试验研究

Release time:2022-04-19 Hits:

Journal:应用基础与工程科学学报

Abstract:针对钢丝绳-聚合物砂浆面层加固中钢丝绳预应力张拉需要,提出了一种采用扭矩扳手施加预应力的实用方法。通过在张拉螺杆上施加不同拧紧扭矩,研究了钢丝绳张拉力变化规律和预应力损失机理,得到扭矩系数、有效预应力系数和预应力损失率。结果表明:张拉螺杆的拧紧扭矩与钢丝绳张拉力呈线性关系,扭矩系数k约为0.2192。预应力损失主要集中在张拉锚固结束后的5min内,其损失量约占总损失量的50%;7h之后,钢丝绳张拉力保持不变,有效预应力趋于稳定。基于试验结果,得到不同拧紧扭矩下的钢丝绳张拉力、有效预应力系数和预应力损失率计算公式,计算结果与实验结果吻合良好。

Indexed by:Journal paper

Page Number:2023,31(2):341-350

Translation or Not:no

Included Journals:EI

First Author:柳战强

Co-author:叶勇,苗伟

Correspondence Author:郭子雄

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