Thin-wall square steel tube-phosphogypsum hollow section composite wall and manufacturing method

Abstract

The invention discloses a thin-wall square steel tube-phosphogypsum hollow section composite wall and a manufacturing method. The manufacturing method is characterized in that arranging thin-walled square steel tubes at certain intervals is carried out, then flat steel strips are mounted on the thin-walled square steel tubes by adopting self-tapping screws, the distance between the flat steel strips can be determined by design calculation, after all the flat steel strips are mounted, a steel skeleton of the composite wall is formed; and then, wall panels are installed on the two sides of the steel skeleton by utilizing the self-tapping screws special for the wall panels to serve as a template for pouring phosphogypsum, a built-in core mold for guaranteeing the hollow section of a wall bodyis inserted, then the phosphogypsum is poured, after the phosphogypsum is initially set, the core mold is taken out, and manufacturing of the thin-wall square steel pipe-phosphogypsum hollow sectioncomposite wall is completed. Afterwards, after the strength and the water content required by the design are achieved through maintenance, the thin-wall square steel tube-phosphogypsum hollow sectioncomposite wall can be transported to a construction site and installation is carried out. The thin-wall square steel tube-phosphogypsum hollow section composite wall has high axial compression and lateral bearing capacity and good heat preservation, heat insulation and fire resistance, meanwhile, a new direction can be developed for comprehensive utilization of the phosphogypsum, and the compositewall is a novel composite wall which is excellent in performance, simple in structure and capable of saving cost.

Description

technical field [0001] The invention relates to a thin-walled square steel pipe-phosphogypsum hollow section composite wall and a manufacturing method thereof, belonging to the technical field of steel and phosphogypsum composite structures. Background technique [0002] In the cold-formed thin-walled steel structure residential system, the wall is the most important vertical load-bearing member and horizontal lateral force-resisting member, and its performance is directly related to the bearing capacity and seismic performance of the structure. Natural disasters such as earthquakes and hurricanes that have occurred around the world in recent years have caused huge damage to such structures, and most of the damage to houses comes from the destruction of wall structures. In actual engineering, the most typical structure of the wall is that the wall frame columns are arranged between the upper and lower guide beams at a certain distance, and horizontal connecting members or cr...

AI Technical Summary

Problems solved by technology

In recent years, with the development of the phosphating industry, the proportion of phosphogypsum (a by-product of phosphochemical industry) in wall materials is increasing year by year. The stock is 60 million tons, and the new area covers more than 5,000 hectares. However, in terms of the utilization of phosphogypsum, the actual utilization rate in my country is less than 30%.

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