A hollow column formwork for scaffold-free construction and construction method thereof
A construction method and technology of hollow columns, which are applied in the fields of formwork/formwork/working frame, preparation of building components on site, construction, etc., can solve the problems that hollow columns are not equipped with special formwork, and the construction process is cumbersome, so as to reduce turnover Materials, improved construction efficiency, simple structure
Active Publication Date: 2017-07-28
POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD
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Problems solved by technology
[0006] At present, there is no better and complete special formwork in the construction process of the hollow column, and the construction process is cumbersome
Method used
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[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0043] The outer diameter of the hollow column in the air-cooled island project of the 350MW unit is 4m, the inner diameter is 3.2m, and the height from the top surface of the supporting platform to the top of the hollow column is 40.55m. The hollow column formwork applied to the scaffold-free construction of the hollow column includes three annular formworks of upper and lower segments, and the annular formworks are fixedly connected by equally distributed bolts. The set height of each formwork is 3 meters.
[0044] Each annular formwork includes an outer formwork 1 and an inner formwork 2 that cooperate with each other. The outer formwork 1 and the inner formwork 2 are formed by longitudinally splicing four arc-shaped plates through bolts. Among them, the outer mold is spliced by four 90-degree arc-shaped steel plates, and the inner mold is spliced...
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The invention discloses a hollow column formwork without scaffolding construction and a construction method thereof. The formwork includes a ring-shaped outer formwork and a ring-shaped inner formwork with a set height that cooperate with each other, and a support frame is arranged outside the ring-shaped outer formwork; The support frame includes several horizontal supports fixedly connected to the side walls of the ring formwork, and vertical supports whose bottom is fixedly connected to the outer ends of the horizontal supports; a scaffolding board used as an operating platform is laid on the horizontal supports, and the A circle of dense nets is hung on the vertical frame to ensure construction safety; the construction channel is a ladder connecting the ground and the supporting frame. On the premise of ensuring safety and quality, the present invention uses the formwork itself to fix the operation platform to meet the construction needs, so as to avoid the construction of the scaffolding system. The utility model has the advantages of simple structure, convenient fixing and connection, easy processing and manufacturing, and low manufacturing cost.
Description
technical field [0001] The invention relates to the field of construction engineering, in particular to a scaffold-free hollow column formwork and a construction method thereof. Background technique [0002] In industrial construction projects, the towering and isolated hollow column is one of the most representative structures. Its outer diameter is small and its height is high, so the construction difficulty and risk are relatively high. [0003] The traditional construction method of hollow column formwork is to use ordinary steel formwork, use tower crane or truck crane to lift the formwork, and use scaffolding to fix it. [0004] Wherein, the steel formwork includes an outer formwork and an inner formwork, and the outer formwork and the inner formwork are two concentric cylinders with the same height. The construction process is that the steel formwork is hoisted to the top of the lower hollow column that has been poured and hardened by tower crane or truck crane, the ...
Claims
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IPC IPC(8): E04G13/02
Inventor 刘桂华曹志新任海潮刘宪太
Owner POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD