求翻译：钢管混凝土是在劲性钢筋混凝土和螺旋钢筋,混凝土的基础上演变和发展起来的,是由混凝土填入钢管内而形成的一种新型组合结构。是什么意思？

Steel is steel reinforced concrete, concrete and spiral reinforcement, concrete on the basis of evolution and developed, concrete filled steel tube by the formation of a new type of composite structure.

It is the strength of concrete pipes and spiral steel reinforced concrete, concrete on the basis of evolution and development, is up by concrete filled steel pipe and form a new combined structure.

正在翻译，请等待...

Concrete-filled steel tubes are rigid and spiral reinforcement of reinforced concrete, concrete on the basis of the evolution and development, is composed of concrete filled steel tube and the formation of a new type of composite structure.

The concrete of steel tube is in strength armored concrete and spiral reinforcing bar, the foundation of the concrete performed becoming and developed, it is a new kind of combining structures formed by the fact that the concrete is filled in the steel tube.