Constructing method for arch bridge using spliced precast segment

摘要

A method of constructing an arch bridge using a segmented precast segment according to the present invention includes a first step of disposing a pair of main segment blocks having first and second segments apart from each other along a bridge direction; A second step of connecting the main segment blocks by a connection segment; A third step of separating the first and second segments that are not coupled with the connection segment from the main segment block to complete a first thermal arch bridge; Fourth and fifth steps of placing the first and second sub segment blocks including the base and the first or second segment in a second row arranged in parallel with the first column; A sixth step of binding the first and second segments of the first column and the second column respectively by binding means; A seventh step of connecting the first and second segments located in the second column to each other using the connection segment to complete a second thermal arch bridge; And repeating the fourth to seventh steps to complete a plurality of columns of arch bridges. According to the present invention, it is possible to prevent a risk of conduction by using a main segment block having no semiconducting first and second segments symmetrical with each other and thus avoiding the danger of conduction, It is not necessary to provide a temporary structure such as a temporary vent or a supporting pile for supporting the segment because the segment to be used is used as a temporary structure to prevent conduction.