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前言关于钢筋混凝土框架和预应力混凝土钢筋接头,在国内外已研究颇多,文献不少,在各种荷载作用下(静荷、动荷包括地震荷载)成功的接头也甚多,但随着科学技术的发展,工业化程度的提高,特别是机械工业和材料工业的进步,对过去使用的某些接头方式、构造原理,已显得陈旧,如在装配式或现浇混凝土框架接头中,有些接头方法已感到现场工作量过多,工期过长或焊接工作量过大等缺点。因而近年来,国外开始使用机械式联接,下面我们搜集到一些国外资料,包括国外考察的内部资料,综合介绍以下几种接头构造和原理。提供给从事这方面工作的同志参考,在有条件的地方争取研
Foreword About the reinforced concrete frame and the prestressed concrete steel bar joint, has already studied at home and abroad quite a lot, the literature is numerous, under the various loads action (the static load, the dynamic load includes the earthquake load) also has many joints successfully, but with The development of science and technology and the improvement of industrialization, especially the progress of the mechanical and material industries, have become obsolete for certain joint methods and construction principles used in the past, such as in the case of fabricated or cast-in-situ concrete frame joints. The method has been found to have a number of shortcomings such as excessive on-site workload, long construction time or excessive welding work. Therefore, in recent years, foreign countries have begun to use mechanical connections. Here we have collected some foreign data, including internal data from foreign inspections, and comprehensively introduce the following joint configurations and principles. Provide reference for gays who work in this area, and strive for research in places where conditions permit