砖混房屋在拱推力,温度应力等外力作用下,常在墙体交接处产生裂缝。一般在内墙上呈八字形,使外墙产生外闪倾向,轻则有碍美观,重则影响使用。以往,对这类砖混结构的加固方法,一是在外墙楼盖处后增混凝土圈梁,由于这种圈梁与预制楼板并不直接接触,不能结成整体;二是在外墙的楼盖处,用高强钢丝束,使之形成预应力外包圈梁,在横墙上并配以钢拉杆,用花篮螺丝套筒收紧,以增强楼盖结构的整体性,这种圈梁,不但能立即参加 Under the action of external forces such as arch thrust and temperature stress, brick-concrete houses often produce cracks at the intersections of wall joints. It is generally shaped like a figure eight on the inner wall so that the outer wall tends to have a tendency to flicker. In the past, the reinforcement method for this type of brick-concrete structure was to add a concrete ring beam to the outer wall of the building. The ring beam was not in direct contact with the prefabricated floor slab and could not be integrated. The second was the outer wall. At the same time, a high-strength steel wire bundle is used to form a prestressed outer ring beam, and a steel pull rod is attached to the horizontal wall, and tightened with a flower basket screw sleeve to enhance the integrity of the floor structure. This ring beam can not only Join now