Multi-pier system high in durability and resistant to earthquake collapsing and construction method
A durable and anti-seismic technology, used in bridge parts, erection/assembly of bridges, bridges, etc., can solve the problems of difficult seismic design of multi-column piers, difficult seismic damage control design, lack of safety confidence, etc., and achieve good earthquake resistance. Collapse ability, convenient construction and good repairability
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[0044] As shown in the figure, a multi-column pier system with high durability and anti-earthquake collapse consists of cap (1), left pier (2-1), right pier (2-2), middle pier (3), and prefabricated cover Beams (4), unbonded prestressed tendons (5), self-compacting micro-expansion high-strength concrete (6), pullout rings (7), ring-shaped steel plates (8), studs (9), stainless steel pipes (10), It consists of a truncated ring (11), a circular CFRP (12), a shear key (13), and a reserved slot (14).
[0045] A left pier (2-1) and a right pier (2-2) are respectively arranged on the left and right sides of the upper part of the cap (1), a middle pier (3) is arranged in the middle, and a prefabricated cover beam (4) is arranged on the top of the pier. The cross-sectional size of the middle pier (3) is obviously larger than that of the left pier (2-1) and the right pier (2-2), and the cross-sectional dimensions of the left pier (2-1) and the right pier (2-2) are equal.
[0046] The ...
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