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1986年我公司承担了天津市水上村四幢22层全现浇住宅楼的施工任务。在施工中发现以前常用的灰斗有以下不足:1.高层塔楼的内墙为240mm或180mm厚,主体施工采用的是大模板体系,模板装好后,模板以上有500mm左右用于搭接的钢筋头,原灰斗口宽250～300mm,由于有钢筋阻碍不能靠近模板投料,造成一部分砼外漏;2.原灰斗门外侧没有保护装置,碰撞后易变形,影响门的开闭;3.原灰斗门的开闭一般采用连杆或齿轮控制,由于机构外露,
In 1986, our company undertook the task of constructing a 22-floor cast-in-place residential building in the four buildings of the Floating Village in Tianjin. Found in the construction of the previously used ash bucket has the following deficiencies: 1. The inner wall of the high-rise tower is 240mm or 180mm thick, the main construction uses a large formwork system, after the template is installed, the template above has about 500mm for lap Rebar head, original hopper mouth width 250 ~ 300mm, due to obstruction of steel can not be close to the template feeding, resulting in part of the external leakage; 2. The original hopper door outside the protective device, easy to deform after the collision, affecting the opening and closing of the door; 3. The opening and closing of the original ash hopper door is generally controlled by connecting rods or gears. As the mechanism is exposed,