Popis: |
With the economy development, ultra-high or long-span structures in engineering are increasing, but the collapse accidents of their formwork support system in the construction are also gradually increasing. The mechanical characteristics of ultra-high or long-span structure formwork support system were analyzed including eccentric loading effect, pole docking effect, horizontal load effect. Based on the mechanical characteristics and occurred collapse accidents analysis, the collapse reasons including design theory, construction management and material defects were analyzed in this paper. |