Hopper for pouring high-dropping non-vibration concrete to steel tube

Abstract

The invention discloses a hopper for pouring high-dropping non-vibration concrete to a steel tube. The hopper comprises a reverse tapered table and a draft tube extending from a thin end of the reverse tapered table and inserted into the steel tube, wherein a first guiding group and a second guiding group for limiting the draft tube are respectively arranged at the upper end and the lower end of the outer side of the draft tube, so that the draft tube is parallel to the axial direction of the steel tube; when the concrete is poured, the concrete cannot be inclined and drop onto a middle sealing baffle, but vertically drops onto the bottom of the steel tube, so that high-dropping and non-vibration requirements are met, the construction quality is improved, and the labor intensity is reduced; the first guiding group supports the reverse tapered table, thereby guaranteeing that the reverse tapered table and the upper part of the steel tube keep a relatively larger interval and facilitating exhaust of accumulated air. The hopper for pouring the high-dropping non-vibration concrete to the steel tube is applied to the field of concrete pouring.

Description

technical field [0001] The invention relates to the field of concrete pouring, in particular to a steel pipe high-throwing vibration-free concrete pouring funnel. Background technique [0002] With the limited land for urban construction, there are more and more super high-rise buildings. Concrete-filled steel tube columns combine the advantages of steel structures and concrete structures. As the main load-bearing components, their applications are becoming more and more extensive. With the maturity of concrete preparation technology, most of the steel pipes are required to be poured with high throw and vibration-free concrete. According to the requirements of the "Technical Regulations for the Application of High-throw Vibration-Free Concrete": high-throw no-vibration concrete is suitable for projects with a drop height of 3m to 12m and a concrete strength of C25 and above. During the construction of super high-rise buildings, due to the limitation of the hoisting capacity...

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the first construction method are: because the ordinary funnel cannot be oriented vertically, the concrete cannot guarantee vertical fall, which makes the concrete fall obliquely to the middle sealing plate of the steel column. slurry, so that the throwing height does not meet the requirement of 3m; in addition, due to the obstruction of the intermediate sealing plate, the accumulated gas is not discharged in time, that is, the exhaust is not smooth during the pouring process, and pores will be generated

[0005] The disadvantages of the second construction method are: the vibration depth is too large, which may cause segregation of the concrete; correspondingly, it will also cause poor exhaust and internal gas accumulation; at the same time, it does not make use of the performance of concrete suitable for high casting without vibration. High labor intensity

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