LONG SPAN STRUCTURE CONSTRUCTION METHOD OF SMALL STREAM

摘要

PURPOSE: A construction method of a long span structure for a small river is provided to prevent increase of construction costs by reducing construction period of a bridge structure for a small river and also prevent pollutant caused by molds. CONSTITUTION: A construction method of a long span structure for a small river is as follows. Floor and edges of a river are trenched and flatted(S100). After the trenched floor is hardened with rubble stones, lean concrete is poured and cured to form a base foundation(S200). Sand is paved on the cured base foundation and a deck is placed horizontally(S300). An abutment end projection part forming in the inner lower part of an abutment is connected to a deck end projection part forming in both side of a deck plate to couple with reinforcement couplers and horizontal injection couplers for installation of the abutment(S400). Both undersides of an upper plate is placed on the top of the abutment to be coupled by a vertical injection coupler for installation of the upper plate(S500).