Construction Scheme Evaluation Model Of Fastener Type High Formwork

After the reform and opening up, China’s economy has made great progress, people’sneed for building higher and higher, with the growing of tall buildings, large space,high-rise rapid emergence of high buildings.High, big works in in-situ concreteformwork supporting system constitutes a high formwork support system, referred toas high-supported formwork system.High formwork supporting system scaffold usetools, such as scaffolding, scaffold with couplers, and Bowl-shape-fastenerscaffolding.Most of which were steel tubular scaffold with couplers.Meanwhile,template collapse accidents frequently occurred, most of the population lives andinjured group of fatal accident.This high-supported formwork system providedimportant requirements for the security.The survey found, scaffold collapse of main reasons for include: design does not meetthe safety standards, the material properties are not qualified, technical measures arenot standardized, and so many other uncertainties.Among them, the design factor isparticularly important.Since there was no specifically for calculation according to andmethodology of high formwork support system provides specification, designers tendto simply copy the template in the design specification or scaffold design specification,Computing Security has limitations.Analysis of high formwork support with couplers are discussed in this paper designand calculation method of the rack.By comparing the safety technical specificationconstruction template JGJ162-2008, steel tubular scaffold with couplers inconstruction safety technical specification JGJ130-2011;The concrete structureproject construction standard GB506666-2011, analyse its calculation methods fordifferent reasons.Theoretical analysis and engineering computation to develop a seriesof high-formwork calculation of relative security steps.Parameter selection andstability calculation load calculations, grouped into a pole, for the construction of highformwork supporting frame with couplers programme designed to provide a securitytemplate.At the same time, by summarizing the research on cause of high formwork supportingframe collapse, combined with national standards and specifications, experts are given high-formwork construction plan should focus on the contents of the audit, on thesafety of high support formwork construction programming, as well as the safetyconstruction of high support formwork makes some sense.