Patent ID: 7469438
Filing Date: 2008-12-30
Classification: E01D

Abstract:
1. An arch bridge comprising an arch unit including: a first abutment and a second abutment, the first and second abutments being spaced apart from each other at a predetermined distance; a deck extending between the first and second abutments; a pair of asymmetrical arches juxtaposedly arranged between and supported by the first and second abutments, wherein each arch has a first end portion and a second end portion, wherein the first end portion of the arch extends upwardly and inclinedly, and the second end portion extends downwardly and inwardly, such that an angle between an inner surface of the second end portion of the arch and the deck is more than 90 degree; a plurality of suspender members attached between the arches and the deck; and a first and second bent cap provided on the respective first and second abutments, and a pair of horizontal tie rods with opposite ends thereof being secured to the first and second bent caps by means of anchorage devices.