Design of temporary support space of steel - concrete composite beams

In Chinese steel structure design standard, steel-concrete composite beams in construction stage, if adopted temporary support beams are not needed for the calculation of the pressure, and generally thought that temporary support, the effect is to reduce the main girder in construction stage of deformation and stress. However the temporary support should be how to calculate the distance without relevant regulations and related formula, can from some construction manual to get some experience. This study found through the calculation formula for calculating the distance beyond the support construction experience, and the manual verified through engineering examples.