Construction method of cone-shaped top structure of large silo

Abstract

The invention provides a construction method of a cone-shaped top structure of a large silo. The construction method comprises the steps of burying embedded parts in the inner wall of the silo wall at the height close to the silo top in the slip form process of the silo wall of the large silo, forming reserved holes in the silo wall above the embedded parts, welding steel corbels on the embedded parts, and then constructing a concrete column, a funnel board and a column top beam in the silo, and burying a foundation bolt in the top of the concrete column, building a scaffold supporting platform on the steel corbels, arranging a silo top formwork support frame on the scaffold supporting platform, and then arranging a cone-shaped shell concrete structure supporting system of the silo top on the silo top formwork support frame, and finally, carrying out pouring. The construction method of the cone-shaped top structure of the large silo is capable of reducing the construction cost and increasing the construction progress, and the construction process is safer and more convenient.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method for a warehouse roof structure Background technique [0002] During the construction of the roof structure of a large silo, due to the large diameter of the silo and the heavy load on the roof structure, the construction safety risk is greater if the sliding form platform is used, so the following two methods are usually used: one is to use a full-height frame from the silo The bottom layer is inverted and constructed to the top layer; the second is to slide form the silo wall first, and then use the full frame to construct to the top layer. Both of them are constructed with full scaffolding. The former uses more scaffolding steel pipes. In comparison, the latter has more advanced technology, but the latter still has disadvantages. The construction method of the latter is: first slide the form to construct the silo wall, remove the slide form device when th...

AI Technical Summary

Problems solved by technology

This method has the following two unfavorable factors: First, due to the high height and large diameter of the large silo, a large number of scaffold steel pipes are required to erect a full-scale scaffold, which increases the rental fee, and the erection period is long, and the erection and dismantling process is difficult. There are great potential safety hazards, which are not safe and affect the construction period; secondly, since the construction of the funnel is not conducive to erecting a full hall frame on the funnel, the roof structure of the warehouse must be constructed first, and then the funnel in the warehouse must be constructed.

Such a construction sequence will increase the difficulty of funnel construction, because the top of the silo will be covered with concrete after the top of the silo, so that the construction materials of the funnel cannot be directly transported vertically to the working surface of the funnel construction, steel bars, Formwork and other materials can only be transported horizontally from the outside of the silo to the inside of the silo by people pulling their shoulders. Whether it is the transportation of steel bars, formwork materials or concrete pouring, they are greatly affected, resulting in a serious delay in the construction period.

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