Construction method for support structure of coal tower template for tamping type coke oven

Abstract

The invention relates to a construction method for a support structure of a coal tower template for a tamping type coke oven, which comprises the following steps of 1, treating a base of a steel structure supporting platform; 2, manufacturing and installing the steel structure supporting platform; 3, prepressing the steel structure supporting platform: the prepressing materials are a resistance wall for the coke oven and a precast slab for a basement, the steel structure supporting platform is overloaded and prepressed according to 110% design load, an observing point is arranged, and the prepressing time is seven days, and the observation is carried out once a day; 4, installing each falsework of the template; and 5, removing the falsework and the steel structure supporting platform. The construction method can realize effective monitoring by well design of a large-span, high-support and heavy-load template support system, particularly is the first in the country in coal towers with a span of 34.045 meters but the beam does not have cracks, solves the difficult problem of construction of a large-span, high-support and heavy-load structure, adapts to the coking technique to be developed in large size and tamping type coke ovens, and has the advantages of short construction period, revolving material saving, safety, reliability, easy quality control and high concrete strength.

Description

technical field [0001] The invention relates to a formwork construction method used in the construction process of a large-scale coking project, in particular to a construction method for a large-span, high-support and heavy-load tamping-type coke oven coal tower formwork support structure. Background technique [0002] The tamping type coke oven coal tower has a large span, high support, and heavy-duty formwork support system with complex space stress, large erection height (15.49m and 26.3m canopy), large span (34.045m), and large load (structural weight 1600T) , and there are uneven forces in the construction process. At present, fastener-type steel pipe scaffolding is generally used as the formwork support system in China, which has the following disadvantages: [0003] 1. The research on fastener-type steel pipe scaffolding as a three-dimensional space structure is still insufficient, and the time and cost of similar calculations are extremely high, and many companies ...

AI Technical Summary

Problems solved by technology

[0003] 1. The research on fastener-type steel pipe scaffolding as a three-dimensional space structure is still insufficient, and the time and cost of similar calculations are extremely high, and many companies do not have such conditions;

[0004] 2. The rigidity of the formwork support system is poor, and cracks are prone to occur under the beam, which seriously affects the structural strength and durability of the concrete;

[0005] 3. The integrity and stability are poor, and there are potential safety hazards in supporting the 1600T self-weight of the coal tower, which endangers life safety;

[0006] 4. The steel pipes are closely spaced, requiring a large number of steel pipes, with heavy workload, long construction period and high construction cost

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