后张法预应力技术对混凝土结构强度和稳定性的影响研究  

Research on the Influence of Post Tensioning Prestressing Technology on the Strength and Stability of Concrete Structures

作　　者：陈建军 CHEN Jian-jun(Ningbo Jiangong Jianle Engineering Co.,Ltd.,Ningbo 315000,China)

机构地区：[1]宁波建工建乐工程有限公司,宁波315000

出　　处：《价值工程》2024年第10期109-111,共3页Value Engineering

摘　　要：本研究旨在探讨后张法预应力技术对混凝土结构强度和稳定性的影响。通过对四片梁进行相关实验,本文详细分析了梁跨中截面的徐变应变、总应变以及长期挠度等指标的时程曲线,并对跨中截面上边缘的混凝土徐变度进行了测度分析。通过这一全面而系统的研究,我们旨在为深化对后张法预应力技术在混凝土结构中应用的理解提供科学依据。This study aims to explore the influence of post tensioning prestressing technology on the strength and stability of concrete structures.By conducting relevant experiments on four beams,this article provides a detailed analysis of the time history curves of creep strain,total strain,and long-term deflection of the mid span section of the beam,and measures and analyzes the concrete creep degree at the upper edge of the mid span section.Through this comprehensive and systematic study,we aim to provide scientific basis for deepening our understanding of the application of post tensioning prestressing technology in concrete structures.

关 键 词：后张法 预应力技术 混凝土 稳定性 

分 类 号：U445.57[建筑科学—桥梁与隧道工程]