CN211006729U

CN211006729U - Be suitable for interlock formula prefabricated plate for constructing temporary cushion in reverse construction method construction

Info

Publication number: CN211006729U
Application number: CN201921815244.XU
Authority: CN
Inventors: 周广; 胡野; 陈廷柱; 吴廷勇; 郭瑞; 王涛; 施磊; 宋伟; 孙颢原
Original assignee: China Railway Construction Engineering Group Co Ltd
Current assignee: China Railway Construction Engineering Group Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-14
Anticipated expiration: 2029-10-28

Abstract

The utility model relates to a be suitable for build interim interlock formula prefabricated plate for bed course in reverse construction, include the prefabricated plate that comprises rigidity frame, board reinforcing bar, rigid sleeve pipe and concrete stopping, fill interconnection component of wanting by reinforcing bar or round steel and contain the rings subassembly of suspension loop seat and buckle. The temporary cushion layer formed by the plurality of prefabricated plates which are connected with each other through occlusion of the plurality of interconnection members is used for replacing a temporary floor in the construction of the existing reverse construction method, has the advantages of simplifying the construction process, improving the construction efficiency, saving raw materials, shortening the construction period, reducing the investment of manpower and material resources, obviously reducing the construction cost and the like, is simple, scientific and reasonable in structure, convenient to manufacture and low in cost, saves time and labor in field installation and disassembly and can be reused, overcomes the defect of serious waste of manpower, material resources and resources in the aspect of constructing the underground relay temporary floor through the existing reverse construction method, and has strong practicability and a valuable market application prospect.

Description

Be suitable for interlock formula prefabricated plate for constructing temporary cushion in reverse construction method construction

Technical Field

The utility model relates to a reverse construction method capital construction facility technical field, especially one kind is suitable for and builds interlock formula prefabricated plate for interim bed course in the reverse construction method construction.

Background

The reverse construction method is a new foundation pit construction technology which is published in recent years and is suitable for the construction of underground multi-layer structures of high-rise buildings, and is characterized in that a floor system structure, beams, plates, columns and outer walls of a basement are used as foundation pit retaining and foundation construction supporting structures, and the construction of a covered and excavated closed basement structure is carried out from top to bottom under the support of a horizontal supporting system and a retaining system in a pit. Because the construction can be carried out simultaneously with the upper structure of the high-rise building without mutual interference, the construction method has the advantages of high efficiency, social resource saving, environmental protection, construction period shortening of the building and the like, and the application is increasingly popularized. The construction of the basement structure mainly comprises the steps of firstly, pouring a first-layer temporary floor on a clean foundation ground, and arranging a first-layer soil taking opening on the first-layer temporary floor; then, underground excavation of a space of a first layer of floor through a first layer of plate soil taking opening, pouring of a temporary floor of the underground layer, and then opening of a plate soil taking opening; then, underground second-layer space is dug through a first-layer plate soil taking opening, and an underground second-layer temporary floor is poured; and performing construction as required, or continuing to excavate the lower-layer space after the upper soil taking port is opened, or using the lower-layer space as a lowest-layer temporary bottom plate of the underground building, and performing basic facility construction such as pile head construction, elevator shaft construction, formal floor pouring and the like on the upper surface as required. The temporary floors poured during the construction period are transitional, and can be broken into construction waste which needs to be transported outside through a soil taking opening when the construction of basic facilities is carried out according to needs, so that labor and time are wasted, and a large amount of resources are wasted, so that the construction mode is not scientific and reasonable, and is not ideal from the aspects of economy, practicability and environmental protection.

Disclosure of Invention

The utility model discloses a change the unreasonable construction mode of the serious waste of manpower, material resources and resources that exist in the aspect of the current reverse construction method construction of building secret temporary floor, provide a temporary cushion layer who builds by the concatenation and fill the temporary floor in traditional reverse construction method construction, convenient in the scene assemble or dismantle, can have enough to meet the need used repeatedly, be favorable to simplifying construction process, shorten construction cycle, reduce construction cost and improve resource utilization's interlock formula prefabricated plate.

The utility model discloses be suitable for and build interlock formula prefabricated plate for interim bed course in reverse construction, including prefabricated plate and interconnection component, characterized in that: the lifting ring assembly is also included; the temporary cushion layer is used as a temporary floor in the reverse construction method and is formed by a plurality of prefabricated plates which are meshed and interconnected by a plurality of interconnecting members; prefabricated plate main part include frame, board reinforcing bar, rigid sleeve pipe and concrete filler are transferred to the rigidity, wherein:

the lifting ring assembly comprises a lifting ring seat made of steel bars and a retaining ring welded on the lifting ring seat;

the rigid box-shaped bow is characterized in that the main body of the rigid box-shaped bow is in a flat box shape and is formed by fixedly welding and interconnecting the end parts of frame plates made of four equal-length steel channels, and at least two limiting mounting holes are formed in the frame plates;

the plate steel bar is flatly laid and embedded in the rigid I.V. frame, and a plurality of lifting ring seats are fixedly welded and distributed on the plate steel bar;

the rigid sleeve is filled by a metal pipe or a PVC pipe, one end of the rigid sleeve is fixedly installed in the limiting installation hole, and the rest part of the rigid sleeve extends to the inner side of the frame plate and is embedded and fixedly arranged in the rigid weichi frame;

the concrete filling material is fully poured and filled in a cavity of the Chinese character wei-wei;

the interconnecting component is filled by reinforcing steel bars or round steel bars, the diameter of which is consistent with the aperture of the limiting mounting hole in an inserted manner, and the length of the interconnecting component is greater than that of the rigid sleeve and less than twice of that of the rigid sleeve.

Based on the above concept the utility model relates to a be suitable for build interlock formula prefabricated plate for interim bed course in reverse construction method construction, because rationally design the prefabricated plate and the interconnection component that are convenient for directly assemble as required at the scene, interlock interconnection, can accompany the underground construction operation of digging earth progressively in proper order, the extension concatenation, the operation that makes the underground basement space of digging is high-efficient expansion under dry and the even state in ground, the limit is dug earth in having avoided prior art construction, the limit extension, it wastes time and energy to waste and pour interim floor, and need abolish again after, export the building rubbish that produces from this again, and when continuing the construction downwards earlier local abolish on interim floor, excavate the trouble that sets up the soil pick-up mouth again. Therefore, utilize the utility model discloses a prefabricated plate is built temporary cushion and is replaced the temporary floor in the construction of traditional reverse construction method, obviously have and simplify construction process, improve the efficiency of construction, practice thrift raw and other materials, reduction of erection time, reduce manpower and materials input, and greatly reduce a great deal of advantages such as construction cost, simple structure and scientific and reasonable, the preparation is convenient and with low costs, the installation all saves time and laborsaving and can also reuse with the dismantlement, the manpower that exists in the aspect of effectively having overcome the construction of current reverse construction method and building underground relay temporary floor, material resources and the serious extravagant drawback of resource, therefore there are very strong practicality and valuable market perspective.

Drawings

Fig. 1 is a schematic diagram of the basic structure of the embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

fig. 3 is a schematic structural view of a suspension ring assembly according to an embodiment of the present invention;

fig. 4 is an occlusion assembling schematic diagram of the embodiment of the present invention.

In the drawings

1. Precast slab 11. rigid box 111. frame plate 112. limiting mounting hole 12. plate reinforcing steel bar

13 rigid sleeve 14, concrete filling 2, interconnecting member 3, suspension ring assembly

31. Hanging ring seat 32, snap ring

Detailed Description

The invention will be further described with reference to the accompanying drawings and exemplary embodiments.

In fig. 1, 2, 3 and 4, the present invention is suitable for constructing an engagement type prefabricated slab for a temporary cushion in a reverse construction, which includes a prefabricated slab 1 and an interconnecting member 2, and is characterized in that: also comprises a lifting ring component 3; the temporary cushion layer is used as a temporary floor in the reverse construction method and is formed by a plurality of interconnecting members 2 and a plurality of prefabricated plates 1 which are meshed and interconnected; 1 main part of prefabricated plate include rigid frame 11, board reinforcing bar 12, rigid sleeve 13 and concrete filler 14, wherein:

the hoisting ring component 3 comprises a hoisting ring seat 31 made of steel bars and a retaining ring 32 welded on the hoisting ring seat 31;

the main body of the rigid box 11 is in a flat box shape and is formed by fixedly welding and interconnecting the end parts of a frame plate 111 made of four equal-length steel channels, and at least two limiting mounting holes 112 are formed in the frame plate 111;

the plate steel bar 12 is flatly laid and embedded in the rigid first-aid frame 11, and a plurality of lifting ring seats 31 are fixedly welded and distributed on the plate steel bar;

the rigid sleeve 13 is formed by a metal pipe or a PVC pipe, one end of the rigid sleeve is fixedly installed in the limiting installation hole 112, and the rest of the rigid sleeve extends to the inner side of the frame plate 111 and is embedded and fixedly arranged in the rigid frame 11;

the concrete filling material 14 is fully poured and filled in the cavity of the first-aid frame 11, after solidification, the prefabricated slab 1 is smooth in bottom surface, the retaining ring 32 is exposed on the upper surface, the limiting mounting hole 112 is exposed on the first-aid frame, and the plate steel bar 12, the rigid sleeve 13 and the suspension ring seat 31 are embedded in the prefabricated slab 1;

the interconnecting component 2 is filled by reinforcing steel bars or round steel bars, the diameter of which is consistent with the diameter of the limiting installation hole 112 in an inserted mode, the length of which is greater than that of the rigid sleeve 13 and is less than twice of that of the rigid sleeve 13.

Claims

1. An interlocking precast slab for constructing a temporary cushion in a top-down construction method, comprising a precast slab (1) and interconnecting members (2), characterized in that: also comprises a lifting ring component (3); the temporary cushion layer is used as a temporary floor in the reverse construction method and is formed by a plurality of interconnected members (2) and a plurality of prefabricated plates (1) which are meshed and interconnected; prefabricated plate (1) main part include rigidity frame (11), board reinforcing bar (12), rigid bushing (13) and concrete filler (14), wherein:

the hoisting ring assembly (3) comprises a hoisting ring seat (31) made of steel bars and a retaining ring (32) welded on the hoisting ring seat (31);

the rigid clocktop frame (11) is in a flat square frame shape and is formed by fixedly welding and interconnecting the end parts of a frame plate (111) made of four equal-length channel steels, and at least two limiting mounting holes (112) are formed in the frame plate (111);

the plate steel bars (12) are flatly laid and embedded in the rigid bow frame (11), and a plurality of lifting ring seats (31) are fixedly welded and distributed on the plate steel bars;

the rigid sleeve (13) is filled by a metal pipe or a PVC pipe, one end of the rigid sleeve is fixedly arranged in the limiting mounting hole (112), and the rest part of the rigid sleeve is extended to the inner side of the frame plate (111) and is embedded and fixedly arranged in the rigid box (11);

the concrete filling material (14) is fully poured and filled in a cavity of the Chinese character wei-wei (11), after solidification, the prefabricated plate (1) is formed, the bottom surface of the prefabricated plate is flat, the buckling ring (32) is exposed on the upper surface of the prefabricated plate, the limiting mounting hole (112) is exposed on the Chinese character wei-wei;

the interconnecting component (2) is filled by reinforcing steel bars or round steel bars, the diameter of which is consistent with the diameter of the limiting mounting hole (112), the length of which is greater than that of the rigid sleeve (13) and less than twice of that of the rigid sleeve (13).