钢筋混凝土和预应力混凝土组合梁应用范围较广,在五十年代推广和发展预应力混凝土结构过程中,为简化预应力台座和节省预拉区的预应力钢筋,广泛地采用了预应力混凝土迭合式吊车梁,取得了较好的技术经济效果。以后在多层房屋建设中,为了提高结构的整体性和厂房的抗震性,陆续采用了装配整体式组合结构,并进行了许多试验研究工作,通过工程试点应用,取得了显著成果。试验说明,迭合面的抗剪强度是保证组合结构共同工作的关键,如果迭合面不能传 The reinforced concrete and prestressed concrete composite beams have a wide range of applications. During the promotion and development of prestressed concrete structures in the 1950s, prestressed concrete was extensively used to simplify prestressed pedestals and prestressed steel bars that saved pre-tensioned areas. Coupling crane beams have achieved good technical and economic results. Later, in the construction of multi-storey houses, in order to improve the integrity of the structure and the earthquake resistance of the factory buildings, a one-piece assembly structure was successively adopted, and a number of experimental studies were carried out. Through the pilot application of the project, remarkable results were achieved. The test shows that the shear strength of the laminated surface is the key to ensure that the combined structure works together. If the laminated surface cannot be transmitted