CN-116556401-B - Tower crane foundation node construction method

Abstract

The invention discloses a construction method of a tower crane foundation node, which comprises the steps of lowering elevation of a tower crane foundation with position overlapping with a basement post-cast zone to the bottom of a basement foundation slab, casting a bearing platform in the range of the tower crane foundation and the tower crane foundation simultaneously, paving waterproof coiled materials at a construction joint of the tower crane foundation, reserving a throwing joint of the waterproof coiled materials, casting the tower crane foundation, installing a tower crane standard node on the tower crane foundation, paving the waterproof coiled materials at the construction joint of the foundation slab, carrying out reinforcement binding and concrete casting construction on the foundation slab, reserving a post-cast zone to be cast area, connecting the throwing joint of the waterproof coiled materials with a lap joint part of the waterproof coiled materials to form a coiled material waterproof layer, casting a post-cast zone, and cutting a standard node steel frame at the bottom. The method and the device can optimally adjust the tower crane foundation and the basement bottom plate, realize that the two can not be subjected to plane position adjustment under the condition that the tower crane position and the post-pouring zone position are limited, and simultaneously meet the operation range of the tower crane and the design requirement of the post-pouring zone.

Inventors

• ZOU YONGQIANG
• Guo Dingzhong
• CHEN LIANG

Assignees

• 珠海十字门中央商务区建设控股有限公司

Dates

Publication Date

20260508

Application Date

20230317

Claims (6)

1. 1. The construction method of the foundation node of the tower crane is characterized by comprising the following steps of: S1, for a tower crane foundation with a position overlapped with a post-pouring zone of a basement, lowering the elevation of the tower crane foundation to the bottom of a foundation slab of the basement, and pouring a bearing platform in the range of the tower crane foundation and the tower crane foundation simultaneously when the tower crane foundation is an engineering pile, so that the top of the tower crane foundation is level with the bottom of the foundation slab of the post-pouring zone of the basement; s2, laying waterproof coiled materials at construction joints of the tower crane foundation according to the outer waterproof requirement of a basement foundation slab during construction of the tower crane foundation, and reserving a waterproof coiled material throwing joint; s3, after pouring of the tower crane foundation is completed, installing a tower crane standard section on the tower crane foundation; S4, paving a waterproof coiled material at a foundation slab construction joint, reserving a waterproof coiled material lap joint part at the bottom of the foundation slab, carrying out steel bar binding and concrete pouring construction on the foundation slab, and reserving a post-pouring zone to be poured; S5, connecting the reserved waterproof coiled material throwing joint with the waterproof coiled material lap joint part to form a coiled material waterproof layer covering a foundation slab and a tower crane foundation; s6, pouring concrete in the area to be poured of the post-pouring belt to form the post-pouring belt, cutting off the bottom standard section steel frame at the top of the foundation slab, enabling the tangential plane to be flush with the upper surface of the foundation slab, and completing dismantling of the tower crane.
2. 2. The method for constructing a foundation node of a tower crane according to claim 1, wherein in the step S1, when the bearing platform and the tower crane foundation within the range of the tower crane foundation are poured simultaneously, the bearing platform and the tower crane foundation within the range of the tower crane foundation are subjected to enveloping reinforcement according to construction and permanent load simultaneously.
3. 3. The construction method of the tower crane foundation node according to claim 1, wherein in the step S2, waterproof coiled materials are paved on the tower crane foundation, a waterproof coiled material throwing part is reserved, specifically, waterproof coiled materials are paved on construction joints at the bottom, the side wall and the top of the tower crane foundation, and the waterproof coiled material throwing part is reserved at the top of the tower crane foundation.
4. 4. The construction method of the tower crane foundation node according to claim 1, wherein in the step S2, the reserved length of the waterproof coiled material throwing joint is 500mm.
5. 5. The construction method of a tower crane foundation node according to claim 1, wherein in the step S4, the foundation slab is subjected to reinforcement binding and concrete pouring construction, and a post-pouring zone to be poured is reserved, and the construction method specifically comprises the following steps: binding the plate gluten and the plate gluten on the foundation base plate; separating the overlapping areas of the foundation slab and the standard section of the tower crane through steel wire meshes to form an area to be poured of the foundation slab and an area to be poured of the post-pouring belt; and carrying out concrete pouring construction on the to-be-poured area of the foundation slab.
6. 6. The method for constructing a foundation node of a tower crane according to claim 1, wherein the post-cast strip is formed by casting expansion casting concrete.

Description

Tower crane foundation node construction method Technical Field The invention relates to the technical field of tower crane foundation node construction in constructional engineering, in particular to a tower crane foundation node construction method. Background During construction of constructional engineering, the arrangement of the tower crane needs to be considered as close to the tower and the working radius as possible to cover the construction area, so that the condition that the position of the tower crane is relatively fixed often occurs. When the position of the tower crane and the position of the post-pouring zone of the basement are in overlapping conflict, the position of the post-pouring zone cannot be adjusted usually due to personnel protection problem and spacing limitation, and at the moment, the condition that the operation range of the tower crane cannot cover a construction area or the tower crane is additionally added can occur if the tower crane foundation is integrally poured with the foundation slab of the basement according to the original position, and the design requirement cannot be met. In order to solve the technical problems, the invention provides a construction method for a foundation node of a tower crane. Disclosure of Invention The invention aims to provide a construction method for a tower crane foundation node, which aims at optimizing and adjusting the method for a tower crane foundation and a basement bottom plate when the tower crane foundation and a basement post-cast strip have overlapping conflict, so that the method can not adjust the plane position of the tower crane foundation and the post-cast strip under the condition that the position of the tower crane and the position of the post-cast strip are limited, and simultaneously meets the requirements of the operation range of the tower crane and the design of the post-cast strip. In order to achieve the above purpose, the invention adopts the following technical scheme: a construction method of a tower crane foundation node comprises the following steps: S1, for a tower crane foundation with a position overlapped with a post-pouring zone of a basement, lowering the elevation of the tower crane foundation to the bottom of a foundation slab of the basement, and pouring a bearing platform in the range of the tower crane foundation and the tower crane foundation simultaneously when the tower crane foundation is an engineering pile, so that the top of the tower crane foundation is level with the bottom of the foundation slab of the post-pouring zone of the basement; s2, laying waterproof coiled materials at construction joints of the tower crane foundation according to the outer waterproof requirement of a basement foundation slab during construction of the tower crane foundation, and reserving a waterproof coiled material throwing joint; s3, after pouring of the tower crane foundation is completed, installing a tower crane standard section on the tower crane foundation; S4, paving a waterproof coiled material at a foundation slab construction joint, reserving a waterproof coiled material lap joint part at the bottom of the foundation slab, carrying out steel bar binding and concrete pouring construction on the foundation slab, and reserving a post-pouring zone to be poured; S5, connecting the reserved waterproof coiled material throwing joint with the waterproof coiled material lap joint part to form a coiled material waterproof layer covering a foundation slab and a tower crane foundation; s6, pouring concrete in the area to be poured of the post-pouring belt to form the post-pouring belt, cutting off the bottom standard section steel frame at the top of the foundation slab, enabling the tangential plane to be flush with the upper surface of the foundation slab, and completing dismantling of the tower crane. Further, in step S1, when the bearing platform within the range of the tower crane foundation and the tower crane foundation are poured simultaneously, the bearing platform within the range of the tower crane foundation and the tower crane foundation need to be enveloped and reinforced simultaneously according to construction and permanent load. In step S2, a waterproof roll is laid on the tower crane foundation, and a waterproof roll throwing joint is reserved, specifically, a waterproof roll is laid on construction joints at the bottom, the side wall and the top of the tower crane foundation, and a waterproof roll throwing joint is reserved on the top of the tower crane foundation. Further, in step S2, the length of the reserved waterproof roll throwing joint is 500mm. Further, in step S4, the foundation slab performs reinforcement binding and concrete pouring construction, and reserves a to-be-poured area of the post-pouring strip, which specifically includes: binding the plate gluten and the plate gluten on the foundation base plate; separating the overlapping areas of the foundation slab and the standard