Fabricated abutment structure for wharf engineering and use method of fabricated abutment structure

Abstract

The invention discloses an assembly type abutment structure for wharf engineering and a using method of the assembly type abutment structure. The assembly type abutment structure structurally comprises pile foundations, slotting type modular abutments, connecting steel frames and subsidiary facilities. The pile foundation is connected with the lower end of the slotted modular abutment, the connecting steel frame is located in a notch in the upper end of the slotted modular abutment, and the subsidiary facility is prefabricated on the slotted modular abutment; the slotted modular abutment comprises a berthing module and a mooring module, the notches are located at the joint of the berthing module and the mooring module, each notch is composed of a berthing module prefabricated notch and a mooring module prefabricated notch, and the notches are evenly distributed in the slotted modular abutment; the pile foundation comprises a steel pipe pile and a corrugated steel pipe, and the corrugated steel pipe is welded to the top of the steel pipe pile. Different modules are connected into a whole through the connecting steel frames and the notch post-cast strips, the integrity and the force transmission effectiveness of the abutment structure are ensured, and the component quality and the construction progress are improved through the prefabrication mode.

Description

technical field [0001] The invention belongs to the field of building structural component design, in particular to a prefabricated pier structure for wharf engineering and a method for using the same. Background technique [0002] The conventional pier and abutment structures of wharf projects mainly include prefabricated pile foundations and cast-in-place piers, but there are a lot of problems with conventional piers, such as: (1) The upper piers are made of large-volume cast-in-place concrete; Relying on the pile foundation to build the fence system, erecting the integral bottom form and side form for pouring, it takes a long time, and the measures such as load-bearing hoop, wood, formwork and other measures are expensive; It is necessary to wait for the tide level during construction and the splash zone, and the construction window period is limited, and the newly poured concrete has the risk of being submerged by the tide; (3) The large-volume piers involve layered pour...

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Problems solved by technology

[0006] Although the above-mentioned patents give the technical method of using prefabricated piers, there are also related key technical issues that need to be overcome, mainly including: (1) The piers of the wharf project need to bear huge ship loads, and the lower part of the pile foundation The number is large, and the plane scale of the piers is generally large. It is difficult for the general crane ship equipment to lift and install the prefabricated piers. Therefore, it should be disassembled and the piers should be divided into multiple modules according to the actual use requirements and lifting capacity. Respectively prefabricated and installed; (2) The conventional cast-in-place piers are equipped with steel bars in all directions up, down, left, and right, and the concrete is poured continuously on the plane, so that when the entire pier is partially stressed, the rest of the pier is transmitted through the interior of the pier. Participate in bearing the load together and transfer the load to all the pile foundations. However, after the pier abutment is modularized and prefabricated separately, it is impossible to realize the continuous laying of steel bars, so innovative means should be used to connect multiple modules; (3) The steel pipe piles of conventional cast-in-place piers extend into the cast-in-place piers, and the upper and lower parts are reliably connected through the pile core reinforcement cage and pile core concrete. Generally, it can only be connected by grouting after the reserved pile holes, limited by the size of the reserved pile holes, the pile foundation needs to be connected and strengthened with prefabricated piers by innovative means; Avoid the process of pile core structure

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