新型纸筒模板在清水混凝土圆柱施工中的应用

上海浦东图书馆(新馆)工程中清水混凝土圆柱施工采用了纸筒模板这一新型的模板体系,取得了良好的效果。纸筒模板采用多层特殊耐水复合纸卷制而成,直径、高度均可定制加工,无需现场拼接;纸筒模板自重轻,对吊装机械要求低;纸筒自身刚度可满足混凝土浇筑过程中产生的侧压力,柱高上、中、下设了3道定位箍以调节模板垂直度,安装、拆模施工便捷。在类似工程中,纸筒模板比常规模板在环保节能、质量控制、施工管理、经济效益等方面均占优势。

APPLICATION OF NEW TYPE PAPER COLUMNAR FORMWORK IN FAIR-FACED CONCRETE COLUMN CONSTRUCTION

In the construction of the Pudong New Library project,a new type formwork system,which was the columnar formwork made by paper,was used in construction of fair-faced concrete column.The paper columnar formwork was wrapped by multilayer special water-proof complex papers.Its diameter and height could be customized,so it needn’t be connected in the field.The deadweight of paper column formwork was so light that the requirement for hoisting machine was low.The self-stiffness of the paper columnar formwork could satisfy the side pressure forming in concrete filling.Three locating hoops were used for the columnar formwork to measure the uprightness,so that it was easy to install and dismantle the formwork.In the same project,the paper columnar formwork was more preponderant than general formwork in environment protection,quality control,construction management and economic benefit,etc.