| 摘要 |
PURPOSE: A bridge structure is provided, which installs additional piers between points supporting a lower chord of a bridge and connects the upper end to a floor slab or a bridge constitution to prevent the large horizontal displacement of a floor slab by loading of horizontal load. CONSTITUTION: In a deck or half through bridge which has an upper chord (1), a lower chord (2) on both outsides of a bridge floor slab (5) and the top of a bridge (4), a floor slab (5) supporting the lower chord (2) swerved perpendicularly, a high pier (7) reaching to the lower part of the floor slab (5) between supporting points which supports the lower chord (2) to reduce horizontal displacement of the floor slab (5) by occurring flexural resistance to a pier (7) when the floor slab (5) causes horizontal movements.
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