Double-layer elevated structure for high-intensity area under limited clearance and construction method of double-layer elevated structure

Abstract

The invention relates to a double-layer elevated structure for a high-intensity area under a limited clearance. The double-layer elevated structure comprises a frame structure fixedly connected with the upper end face of a lower-layer stand column through a support; the support is a shock absorption and isolation support; the frame structure comprises an upper-layer main beam, an upper-layer stand column and a lower-layer main beam; the lower end face of the upper-layer main beam is fixedly connected with the upper end face of the upper-layer stand column, and the lower end face of the upper-layer stand column is fixedly connected with the upper end face of the lower-layer main beam. The invention further relates to a construction method of the double-layer elevated structure. According to the shock absorption and isolation anti-seismic method adopted by the double-layer elevated structure, the shock absorption and isolation effect is obvious, the overall height of the structure is low, and the anti-seismic problem of the double-layer elevated structure of the high-intensity area under the limited clearance is ingeniously solved.

Description

technical field [0001] The invention relates to the field of anti-seismic bridges, in particular to a double-layer elevated structure used in high-intensity areas with limited headroom and a construction method thereof. Background technique [0002] At present, most of the double-deck elevated bridges in domestic cities are mainly in the form of columns and cover beams. Due to the use of cover beams in this double-deck elevated structure, the height of the bridge structure is higher and the clearance under the bridge is compressed. However, in the case of extremely limited clearance in airports and stations, it is difficult for this double-layer elevated structure to balance the dual requirements of structural force and clearance height. If the structural form of columns and main beams is fully fixed, although the dual requirements of structural force and headroom height are effectively met, due to the heavy weight of the upper structure of the double-deck elevated bridge, i...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the double-deck elevated bridges in domestic cities are mainly in the form of columns and cover beams. Due to the use of cover beams in this double-deck elevated structure, the height of the bridge structure is relatively high, and the headroom under the bridge is compressed.

However, in the case of extremely limited clearance in airports and stations, it is difficult for this double-layer elevated structure to balance the dual requirements of structural force and clearance height

If the structural form of columns and main beams is fully fixed, although the dual requirements of structural force and headroom height are effectively met, due to the heavy weight of the upper structure of the double-deck elevated bridge, it is difficult to solve the problem of seismic resistance of the bridge, especially when the headroom is limited. In the high-intensity area, the disadvantage of the structural form of the column and the main beam is more obvious.

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