How To Solve The Problem Of Functional Bag Collapse?

- Aug 17, 2017 -

How to solve the problem of Functional Bag collapse?
 As the Functional Bag collapsed more seriously, the government attaches great importance to this, in order to avoid agricultural losses, at present, according to the shed to rebuild the "raise the grade, raise the level" principle, the government constructs the reconstruction of the functional guidance. Sheds, material aging, structural defects are the main reason. Functional Bag construction was crushed five cases:
        First, due to the construction of functional bags is more than 3 years old bamboo structure of the old greenhouse, these greenhouses as the main material of the load is bamboo, bamboo rod after 3 years has been retroghed, case of snow is difficult to load, crushed, The
        Second, because the greenhouse is large, no columns, such a greenhouse shed large load, likely to cause collapse shed.
        Third, due to the construction of the wall when the wall is dwarf, such a greenhouse slope on the front side of the small, relatively gentle, snow is difficult to remove, plus the wall after the snow dampness, snow pressure after the collapse and collapse.
        Fourth, due to the construction of functional bags without cold film, or cold film damage water leakage, grass that wet, the slope is difficult to load and collapse.
        5, due to the construction of functional bags of steel skeleton structure interface with a gap, the connection movement, resulting in uneven force, snow pressure collapsed. As a result of the climate Blizzard caused by vegetable greenhouses damage is bamboo arch bamboo column pillar structure, the age of more than 5 years greenhouses, due to bamboo aging, pressure reduction and collapse.
        Six, due to the construction of the functional bag Siamese span, due to the column or column height uneven, uneven force and collapse.
 
        So how to avoid the collapse of the Functional Bag construction? Restoration of scientific and practical reconstruction is the key, the experts suggested:
        1, the construction of solar Functional Bag should be used in high toughness toughness of the steel skeleton structure;
        2, functional bag construction weight per meter at 150 kg or the use of cement pillars, bamboo + bamboo pole structure arch, do not advocate the use of pure bamboo skeleton. At the same time, improve the height of the back wall to 3.3 meters to 3.5 meters, ridge up to 3.8 meters to 4.0 meters, increase the front roof of the degree.
        3, functional bag construction span to moderate, generally in the 7 meters to 8 meters. Cement pillars, bamboo slabs + bamboo pole structure of the greenhouse to have 2 to 4 rows of columns, steel and round steel structure of the backbone of the pillars may be appropriate to reduce, but the back slope must have a row of columns.
        4, functional bag construction to promote the use of semi-underground cultivation, subsidence 60 cm to 80 cm, improve the insulation performance. Greenhouse front slope of the insulation material, the conditional proposal to replace the grass with non-woven. It must be equipped with high quality, watertight plastic film or other tarpaulins.
        5, the construction of plastic Functional Bags, the proposed use of steel skeleton, welding strict support; or the use of cement pillars, bamboo + bamboo structure arch. Do not advocate the use of composite skeleton or pure bamboo skeleton. Increase the height of the arch on the arch to build the height of the arch to facilitate snowfall. Control span of 8 meters to 10 meters.
        6, bamboo structure Functional Bag construction column to be increased to 6 per row.

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