在上海某重型钢结构厂房施工中,根据钢管柱内浇捣密实混凝土的需要,采用一种抱箍式的顶升导入装置,结合相应的截流、溢流和卸压装置及自密实混凝土应用等施工技术,成功实现了24m高钢管柱内混凝土一次性顶升施工。由此减少了工序环节、加快了施工进度,并确保了施工质量,经济效益和社会效益明显。 In the construction of a heavy steel structure workshop in Shanghai, according to the need of pouring and compaction concrete in steel pipe column, a kind of hoop hoisting and introducing device is adopted, combined with the corresponding interception, overflow and pressure relief device and application of self-compacting concrete Construction technology, successfully achieved a one-time construction of 24m high concrete filled steel column. As a result, the process steps are reduced, the construction progress is accelerated, and the construction quality, economic benefits and social benefits are obviously ensured.