论文部分内容阅读
一、前言 60年代以前,国内大部分模板采用散拼木模或定型木模板;70年代后期,先后研究推广了钢制大模板、组合钢模板和滑动模板等多种形式的钢模板。近几年随着高层建筑和现浇砼的增多,模板工程技术的提高,又推广了钢框胶合板及多种非金属板面的模板,在使用中显示了其技术和经济上的特点,为进一步研究开发第三代模板提供了条件。砼模板工程是建筑工程施工中的重要组成部分,模板和模板支撑是一种量大面广的施工机具,其工程费用占现浇砼结构费用的
I. Preface Before the 1960s, most of the domestic templates used scattered wood molds or wood templates. In the late 1970s, various types of steel templates such as steel large templates, composite steel templates and sliding templates were studied and promoted successively. In recent years, with the increase of high-rise buildings and cast-in-place concrete, and the improvement of formwork engineering technology, steel frame plywood and a variety of non-metallic sheet surface templates have been promoted, showing their technical and economical features in use. Further research and development of third-generation templates provide the conditions.砼 Formwork engineering is an important part of construction projects. Formwork and formwork support is a kind of construction equipment with a wide range of construction costs. Its engineering costs account for the cost of cast-in-place concrete structures.