最近,我们在18米高单跨六层钢筋混凝土框架楼梯间工程中,采用普通油压千斤顶顶升的滑模施工方法,取得了一定的效果。施工中将柱头架改装成对角交叉形布置(图1)。在柱头架上分别装设支座1及支座2(图2)。支座2装置时应注意其安装高度,并控制n_1-n_2比油压千斤顶的一个顶升行程高5～8毫米。支座1及支座2 Recently, in the 18-meter-high single-span six-story reinforced concrete frame stairwell project, we adopted a sliding mode construction method in which ordinary hydraulic jacks were lifted, and achieved certain results. The stigma head will be converted into a diagonal cross-arrangement during construction (Fig. 1). The support 1 and the support 2 are installed on the column frame respectively (Fig. 2). When mounting the device, it should pay attention to its installation height and control the n_1-n_2 to be 5 to 8 mm higher than a lifting stroke of the hydraulic jack. Support 1 and Support 2