Internal force calculation of long span suspension bridge under vertical load based on elastic foundation beam algorithm

The calculation of suspension bridge under vertical load is the most important content design and basis main component design. Combined with knowledge structural mechanics, this paper puts forward elastic foundation beam algorithm, deduces formulas for cross-section strength comparison sling, cable stiffening beam. In use, as long parameters are brought into formula, it more convenient fast compared complex software modeling. method proposed in used to check completed Japanese Guanmen bridge, results accurate enough. It reliable use preliminary rapid safety assessment bridge.