The tests show the importance of good concrete compaction for concrete-filled steel RHS stub columns.
试验充分证明了混凝土密实度对矩形钢管混凝土短柱的重要性。
2
Because of good mechanical performance, concrete-filled steel tube structures have been used for hundreds years in civil engineering.
由于良好的力学性能，钢管混凝土结构在土木工程中的应用已有上百年历史。
3
The circular section concrete-filled steel tube structures have good performance because of uniform restraint of concrete provided by circular steel tube.