Full-cast-in-place self-ventilation dour-layer roof granary structure and construction method

Abstract

The invention provides a full-cast-in-place self-ventilation dour-layer roof granary structure and a construction method. The structure comprises a square granary body, and a granary roof arranged atthe top of the granary body; the granary body comprises a foundation, stand columns and walls formed through cast-in-place concrete; the granary roof comprises a trapezoidal steel roof truss, an upper-layer roof panel and a lower-layer roof panel; the foundation, the stand columns, the walls and the granary roof are integrally formed through casting of concrete on reinforcement nets in place; thesteel roof truss is connected with the columns and the walls; the foundation, the stand columns, the walls and the lower-layer roof panel form whole closed space; and the steel roof truss between theupper-layer roof panel and the lower-layer roof panel forms self-ventilation heat adjusting space. The structure can effectively stop the heat transfer to protect low temperature in the granary, and achieves environmental protection, energy conservation and good airtight performance in the granary.

Description

Technical field [0001] The invention belongs to the field of granary structure, and relates to a fully cast-in-situ self-ventilated double-roof storage granary structure, in particular to a cast-in-situ self-ventilated double-roof storage granary structure for storing grain and a construction method. Background technique [0002] At present, there are many forms of grain storage silos, the commonly used ones are: [0003] (1) Storage granary with reinforced concrete arch roof. The roof form of the granary is a reinforced concrete arch, and the arch is a pre-stressed structure with a combination of plate and frame. The lower slab is flat, and the upper slab is a secondary parabolic arch. A closed space is formed between the upper and lower slabs, and the natural ventilation effect is poor. Generally, on-site prefabrication is used, which requires large-scale hoisting equipment and is difficult to hoist. It can also be constructed by high-altitude in-situ cast-in-place constructio...

AI Technical Summary

Problems solved by technology

The disadvantage is that the waterproof performance of terracotta is poor

At the same time, due to the large horizontal thrust of the rigid frame structural column under the roof load, it forms a superimposed effect with the lateral pressure of the grain in the warehouse, and the structural form is unreasonable, resulting in the economic span of this warehouse type not exceeding 21m.

At the same time, the construction of reinforced concrete portal frame is very difficult, and the structure of beam-column connection nodes is complicated, so it is difficult to guarantee the construction quality

[0008] It can be seen from the above that the existing warehouse-shaped columns for grain storage are all made of ordinary solid bricks, which have problems such as poor heat insulation performance of the roof, poor air tightness, no environmental protection and energy saving, difficult construction, and economical selection of warehouse spans.

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