The present application relates to a kind of double-column
pier system and construction method of quick construction in high-risk seismic area, belong to the technical field of fabricated structure
engineering.The double-column
pier of construction includes cap beam,
pier column,
pile cap,
pile.The pier column and cap beam are connected by grouting steel pin and slot combination, and the pier column and
pile cap are connected by socket and steel pin combination, and the new socket connection node structure of pier column-cap beam /
pile cap can better realize
mechanical transmission, guarantee the connection reliability and
seismic safety of bridge node, the recess of corrugated shape is arranged in the
pile cap, and shear stud is arranged below the pier column, which can improve the connection reliability between the pier column and the
pile cap, the socket depth of the double-column pier can be reduced to 0.5d by this connection method, and the top grouting method is used to ensure the grouting density.The present application can realize convenient, quick
prefabrication and
assembly, and has good seismic performance, which guarantees the
seismic safety of the
system.