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预应力锚固区荷载传递试验国际标准简介——预应力锚固区安全探讨之五
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(中国建筑科学研究院 北京 100013)

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冯大斌

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TU757

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Introduction to the international standard for Load transfer test in prestressed anchorage zone -- Discussion on safety in prestressed anchorage zone V
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(China Academy of Building Research, Beijing 100013)

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    摘要:

    近年来,国内预应力技术专业人员越来越重视预应力锚固区的安全问题。铁路、公路桥梁及特种结构的设计、施工单位及锚具主要生产企业,都把锚垫板、螺旋筋的承载能力放在首位。锚固区承载力的鉴定试验方法和标准,国外几十年前就已制订发布,我国也已开始探讨,预计不久将普遍开展。本文搜集了英国、国际预应力混凝土协会、欧洲标准化委员会、欧洲技术认证组织、美国国家公路和运输协会、美国后张学会等组织的七份标准,将其中有关预应力锚固区的荷载传递试验介绍给读者。主要内容有:试件的设计规定、试验时混凝土强度的要求、试件的加荷程序、试件数据的采集与分析等。希望能为同业人员开展此类工作时提供参考。

    Abstract:

    In recent years, the domestic prestressed technical professionals pay more and more attention to the safety of prestressed anchorage area. The design and construction units of railway, highway bridge and special structure, as well as the main production enterprises of anchors, all put the bearing capacity of anchor plate and screw bar in the first place. The evaluation test methods and standards of the bearing capacity of anchoring areas have been formulated and released abroad decades ago, and China has also begun to explore, which is expected to be widely carried out in the near future. This paper collects seven standards from the United Kingdom, the International Prestressed Concrete Association, the European Standardization Committee, the European Technical Certification Organization, the National Highway and Transportation Association of the United States, the American Post-tensioning Society and other organizations, and introduces the load transfer test in the prestressed anchorage zone to the reader. The main contents are: the design of the specimen, the concrete strength requirement during the test, the loading procedure of the specimen, the collection and analysis of the specimen data, etc. I hope it can provide reference for the staff in the same industry to carry out this kind of work.

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Dabin Feng, Xiao Pei, Ying Zhu, Qian Chen, Chengshun Zhou, Li Zeng Introduction to the international standard for Load transfer test in prestressed anchorage zone -- Discussion on safety in prestressed anchorage zone V. Prestress Technology 2014,18(03):3-12. 10.59238/j. pt.2014.03.001

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  • 在线发布日期: 2023-08-08
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