The utility model provides a take board -like road bed of newly -built stake of no beam slab formula structure system of bent cap, relates to highway and builds new technical field, including prefabricated PHC tubular pile, cast -in -place bent cap, precast concrete board, the cast -in -place crossbeam of decking, the cast -in -place longeron of decking and cast -in -place layer, prefabricated PHCtubular pile evenly becomes the rectangular array setting, the horizontal even fixed upside that sets up at prefabricated PHC tubular pile of cast -in -place bent cap, and precast concrete board is fixed to be set up at cast -in -place bent cap upside, and festival between the precast concrete board is intersegmental to be connected through the cast -in -place crossbeam of decking and the cast -in -place longeron of decking respectively, and cast -in -place layer fixes and pours the upside at precast concrete board, the cast -in -place crossbeam of decking and the cast -in -place longeron ofdecking. The utility model discloses go up lower part prefabricated component, and the prefabricated section is less, convenient transportation, the construction is convenient. Soft soil foundation, the depth of fill lower unsuitable location of building bridge strict to foundation deformation control has good technique and economic superiority, is the roadbed structure form of easily promoting.