High -order stretch -draw pedestal of arch bar

The utility model provides a high -order stretch -draw pedestal of arch bar, it includes lacing wire under lacing wire on collar tie beam, anchor slab, the reaction frame, reaction frame push pipe, the reaction frame, stretch -draw prefabricated platform, through chooseing the cast -in -place pretensioned prestressing arch bar room of eminence lid technology for use, the eccentric moment who produces during control stretch -draw makes the roof truss collar tie beam displacement appear, and gutter buttress portion does not take place the crack, not only saves the area, still can avoid hoisting the risk to guarantee the construction quality of arch bar preparation installation, the material consumption that can yet be regarded as is few, with low costs, quality, safe and reliable's construction technology.