一、前言近年来,预应力装配整体式梁板结构,由于在施工方法和受力特点上的优越性,日益广泛地应用在国内外的多层工业厂房和民用住宅建筑上。装配与现浇结合形成的连续结构,与简支构件相比,整体性能好,有利于抗震。它既具有预应力构件的优点,又避免了现场张拉的麻烦,是一种较合理的结构形式。装配整体式梁板的研究,在国内外已进行多年,国内在这方面的研究,多为静定迭合结构,对于超静定装配整体结构的研究较少。本文研究的连续梁结构形式是:预制的预应力单跨梁在支座处配以负弯矩筋,通过现浇混凝土,形成整体的连续梁。普通整浇的钢筋混凝土连续梁,由于有塑性内力重分布的特点,因而在设计中可在 I. INTRODUCTION In recent years, prestressed and assembled monolithic slab structures have been increasingly applied to multi-layer industrial plants and civil residential buildings at home and abroad due to their superiority in construction methods and force characteristics. The continuous structure formed by assembly and cast-in-place, compared with simply-supported components, has a good overall performance and is beneficial to earthquake resistance. It not only has the advantages of prestressed components, but also avoids the trouble of on-site tension. It is a more reasonable structural form. The research of assembling integral beam plates has been carried out at home and abroad for many years. The domestic researches in this area mostly consist of statically-definite and superposed structures. There is less research on the overall structure of statically indeterminate assemblies. The continuous beam structure studied in this paper is: prefabricated prestressed single-span beam is equipped with negative moment ribs on the support, through the cast-in-place concrete to form an integral continuous beam. Ordinary cast-in-place reinforced concrete continuous beams, due to the redistribution of plastic internal forces, can be used in design.