CN219568938U - Pit-in-pit variable-section raft inclined plane reinforcing steel bar positioning structure - Google Patents

Abstract

The utility model relates to the technical field of basement raft reinforcement construction, and aims to solve the problem that reinforcement bars are difficult to position and have potential safety hazards when pit-in-pit variable-section raft inclined plane reinforcement bars are constructed by a traditional method; the positioning plate is fixedly connected with a transverse sleeve, two ends of the transverse sleeve are connected with raft X-direction steel bars, the transverse sleeve is fixedly connected with a longitudinal sleeve, the longitudinal sleeve is perpendicular to the transverse sleeve, and two ends of the longitudinal sleeve are connected with raft Y-direction steel bars; the positioning cushion blocks are arranged in an array on the inclined plane, and adjacent reinforcing steel bars are fixedly connected.

Description

Pit-in-pit variable-section raft inclined plane reinforcing steel bar positioning structure

Technical Field

The utility model relates to the technical field of basement raft reinforcement construction, in particular to a pit-in-pit variable-section raft inclined plane reinforcement positioning structure.

Background

The raft foundation is a foundation form commonly adopted in high-rise and super high-rise buildings at present.

According to the design requirement, include elevator pit, sump pit, pile foundation cap pit, fall board pit, reserve pit such as entrance to a cave in the foundation ditch, pit area is big in the foundation ditch, and the degree of depth is darker and have certain slope. In the pit-in-pit variable-section raft inclined plane reinforcing steel bar installation process, the inclined plane reinforcing steel bar is difficult to lay.

In the traditional construction process, the following two problems are easy to cause:

on the one hand, the foundation pit bottom plate has a plurality of layers of longitudinal and transverse steel bars laid and is dense, the position of the steel bars laid at the pit mouth part of the foundation pit and the position of the actual pit well are easy to deviate, the pit well inclined plane steel bars are required to be cut off in site construction, and then the pit well steel bars are lapped on the foundation pit bottom plate inclined plane steel bars according to the actual position of the pit well.

On the other hand, the pit slope in the foundation pit is excavated in place by using machinery at one time, and a simple operation platform is erected to be matched with manual work to install slope steel bars. Because the pit area in the foundation pit is big, the degree of depth is darker and has certain slope, adopts the manual work to carry out inclined plane reinforcing bar ligature, has great potential safety hazard.

In summary, in the traditional construction method, the inclined operation surface is not beneficial to binding and positioning of the reinforcing steel bars, the construction flatness of the inclined cushion layer is difficult to control, so that the thickness of the inclined protection layer of the foundation pit is not effectively controlled, and the working procedures of cutting, lapping, welding and the like are repeated for the reinforcing steel bars of the inclined plane of the pit-in-pit variable-section raft.

Disclosure of Invention

The utility model aims to provide a pit-in-pit variable-section raft inclined plane reinforcing steel bar positioning structure, which solves the problems that reinforcing steel bars are difficult to position and potential safety hazards exist when pit-in-pit variable-section raft inclined plane reinforcing steel bars are constructed by a traditional method.

The utility model is realized by adopting the following technical scheme:

the utility model provides a pit-in-pit variable-section raft inclined plane steel bar positioning structure, which comprises a positioning cushion block, wherein the top surface of the positioning cushion block is fixedly connected with a positioning plate, a plurality of positioning holes are formed in the positioning plate, positioning ribs are arranged in each positioning hole and penetrate through the positioning cushion block, and the positioning ribs are used for being inserted into inclined planes;

the positioning plate is fixedly connected with a transverse sleeve, two ends of the transverse sleeve are connected with raft X-direction steel bars, the transverse sleeve is fixedly connected with a longitudinal sleeve, the longitudinal sleeve is perpendicular to the transverse sleeve, and two ends of the longitudinal sleeve are connected with raft Y-direction steel bars;

the positioning cushion blocks are arranged in an array on the inclined plane, and adjacent reinforcing steel bars are fixedly connected.

The positioning structure provided by the utility model comprises the positioning cushion blocks, the positioning cushion blocks can be conveniently fixed on the inclined plane through the positioning ribs, each positioning cushion block is correspondingly provided with the transverse sleeve and the longitudinal sleeve, and the sleeves can be directly connected with the raft X-direction steel bars and the raft Y-direction steel bars, so that the raft X-direction steel bars and the raft Y-direction steel bars can be rapidly paved on the inclined plane by utilizing the positioning cushion blocks. The adjacent raft X-direction steel bars and the adjacent raft Y-direction steel bars can be fixedly connected in advance after the positioning cushion block arrays are arranged, and then the positioning cushion blocks and the steel bars are integrally installed on the inclined plane; the positioning cushion blocks can be arranged on the inclined plane in an array mode, then the steel bars are installed, the adjacent raft plates X are fixedly connected with the steel bars, the adjacent raft plates Y are fixedly connected with the steel bars, the working time and the working load of workers on the inclined plane can be reduced, and the risk of the workers in construction on the inclined plane is reduced.

The positioning structure provided by the utility model solves the problem of positioning the reinforcing steel bars on the inclined plane, ensures that the reinforcing steel bars are laid clearly, the positioning is accurate and fast, ensures the thickness of the protective layer of the inclined plane reinforcing steel bars, simultaneously reduces the engineering quantity of manually binding the reinforcing steel bars, eliminates or reduces the potential safety hazard of the reinforcing steel bars bound on the inclined plane, saves labor, reduces turnover materials erected by an operation frame, saves the renting cost of the turnover materials and reduces the safety risk.

As a preferable technical scheme:

the transverse sleeve and the longitudinal sleeve are provided with internal threads, the ends of the raft X-direction steel bars are provided with external threads, and the two raft X-direction steel bars are screwed into the transverse sleeve from the two ends of the transverse sleeve respectively and are connected with the transverse sleeve; the ends of the raft Y-direction steel bars are also provided with external threads, and the two raft Y-direction steel bars are respectively screwed into the longitudinal sleeve from the two ends of the longitudinal sleeve and are connected with the longitudinal sleeve.

As a preferable technical scheme:

the positioning cushion block is a concrete positioning cushion block.

As a preferable technical scheme:

the locating plate is an embedded steel plate, the locating ribs are steel plate bolt foot reinforcing steel bars, and the steel plate bolt foot reinforcing steel bars penetrate through the concrete locating cushion blocks.

As a preferable technical scheme:

and the steel plate bolt foot steel bars are embedded in the concrete positioning cushion blocks after being welded with the embedded steel plates.

As a preferable technical scheme:

the transverse sleeve is fixedly connected to the top of the positioning plate, and the longitudinal sleeve is fixedly connected to the top of the transverse sleeve.

As a preferable technical scheme:

the locating plate is a rectangular plate, and four locating holes are formed in the rectangular plate and are respectively located at four corners of the rectangular plate.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

the positioning structure provided by the utility model solves the problem of positioning the reinforcing steel bars on the inclined plane, ensures that the reinforcing steel bars are laid clearly, the positioning is accurate and fast, ensures the thickness of the protective layer of the inclined plane reinforcing steel bars, simultaneously reduces the engineering quantity of manually binding the reinforcing steel bars, eliminates or reduces the potential safety hazard of the reinforcing steel bars bound on the inclined plane, saves labor, reduces turnover materials erected by an operation frame, saves the renting cost of the turnover materials and reduces the safety risk.

Drawings

Fig. 1 is a top view of a pit-in-pit variable section raft inclined plane reinforcing steel bar positioning structure according to the utility model.

FIG. 2 is a cross-sectional view taken along the direction 1-1 in FIG. 1.

Icon: 1-concrete positioning cushion block, 2-embedded steel plate, 3-steel plate bolt foot steel bar, 4-transverse sleeve, 5-raft X-direction steel bar, 6-longitudinal sleeve and 7-raft Y-direction steel bar.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1 and 2, this embodiment provides a pit-in-pit variable cross-section raft inclined plane reinforcing bar location structure, including concrete location cushion 1, the top surface fixedly connected with pre-buried steel sheet 2 of concrete location cushion 1, a plurality of locating holes have been seted up on the pre-buried steel sheet 2, every be provided with steel sheet bolt foot reinforcing bar 3 in the locating hole, steel sheet bolt foot reinforcing bar 3 runs through concrete location cushion 1 sets up, steel sheet bolt foot reinforcing bar 3 is used for inserting the inclined plane. In this embodiment, the embedded steel plate 2 is a rectangular plate, four positioning holes are formed in the embedded steel plate 2, four positioning holes are respectively located at four corners of the embedded steel plate 2, and the embedded steel plate 2 and four steel plate bolt foot steel bars 3 are welded and then embedded into the concrete positioning cushion block 1.

The embedded steel plate 2 is welded with a transverse sleeve 4, a raft board X-direction steel bar 5 is arranged in the transverse sleeve 4, a longitudinal sleeve 6 is welded at the top of the transverse sleeve 4, a raft board Y-direction steel bar 7 is arranged in the longitudinal sleeve 6, the longitudinal sleeve 6 is perpendicular to the transverse sleeve 4, and the raft board Y-direction steel bar 7 is perpendicular to the raft board X-direction steel bar 5. The transverse sleeve 4 and the longitudinal sleeve 6 are provided with internal threads, the ends of the raft X-direction steel bars 5 are provided with external threads, and the two raft X-direction steel bars 5 are respectively screwed into the transverse sleeve 4 from the two ends of the transverse sleeve 4 and are connected with the transverse sleeve 4; external threads are also arranged at the ends of the raft Y-direction steel bars 7, and the two raft Y-direction steel bars 7 are respectively screwed into the longitudinal sleeve 6 from the two ends of the longitudinal sleeve 6 and are connected with the longitudinal sleeve 6.

The plurality of concrete positioning cushion blocks 1 are arranged in an array on an inclined plane, raft X-direction reinforcing steel bars 5 connected to one concrete positioning cushion block 1 are welded with raft X-direction reinforcing steel bars 5 on the adjacent concrete positioning cushion block 1, and raft Y-direction reinforcing steel bars 7 connected to one concrete positioning cushion block 1 are welded with raft Y-direction reinforcing steel bars 7 on the adjacent concrete positioning cushion block 1. The spacing between the concrete positioning cushion blocks 1 is required to be controlled through accurate blanking of the steel bars, and in the embodiment, the midrange of two adjacent concrete positioning cushion blocks 1 (X, Y direction) is 2m, namely 10 times of the raft steel bar spacing.

In this embodiment, the size of the concrete positioning pad 1 is 150mm by 50mm, and the strength is C35; the size of the embedded steel plate 2 is 150mm by 10mm.

The construction method of the pit-in-pit variable-section raft inclined plane reinforcing steel bar positioning structure comprises the following steps:

s1: measuring and paying off;

s2: constructing a raft foundation and a pit cushion layer;

s3: the method comprises the steps of (1) welding an embedded steel plate with four steel plate bolt foot steel bars, then embedding the steel plate into a concrete positioning cushion block, pouring concrete to manufacture the concrete positioning cushion block, welding a transverse sleeve on the embedded steel plate, and welding a longitudinal sleeve on the transverse sleeve;

s4: arranging concrete positioning cushion blocks;

s5: installing raft X-direction steel bars and raft Y-direction steel bars;

s6: pre-burying water and electricity;

s7: checking and accepting;

s8: and pouring raft foundation and pit concrete.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. Pit-in-pit variable cross-section raft inclined plane reinforcing steel bar positioning structure, its characterized in that:

the positioning device comprises a positioning cushion block, wherein the top surface of the positioning cushion block is fixedly connected with a positioning plate, a plurality of positioning holes are formed in the positioning plate, positioning ribs are arranged in each positioning hole, penetrate through the positioning cushion block and are used for being inserted into an inclined plane;

the positioning plate is fixedly connected with a transverse sleeve, two ends of the transverse sleeve are connected with raft X-direction steel bars, the transverse sleeve is fixedly connected with a longitudinal sleeve, the longitudinal sleeve is perpendicular to the transverse sleeve, and two ends of the longitudinal sleeve are connected with raft Y-direction steel bars;

the positioning cushion blocks are arranged in an array on the inclined plane, and adjacent reinforcing steel bars are fixedly connected.

2. The pit-in-pit variable cross-section raft inclined plane rebar positioning structure of claim 1, wherein:

the transverse sleeve and the longitudinal sleeve are provided with internal threads, the ends of the raft X-direction steel bars are provided with external threads, and the two raft X-direction steel bars are screwed into the transverse sleeve from the two ends of the transverse sleeve respectively and are connected with the transverse sleeve; the ends of the raft Y-direction steel bars are also provided with external threads, and the two raft Y-direction steel bars are respectively screwed into the longitudinal sleeve from the two ends of the longitudinal sleeve and are connected with the longitudinal sleeve.

3. The pit-in-pit variable cross-section raft inclined plane rebar positioning structure of claim 1, wherein:

the positioning cushion block is a concrete positioning cushion block.

4. The pit-in-pit variable cross-section raft inclined plane rebar positioning structure of claim 3, wherein:

the locating plate is an embedded steel plate, the locating ribs are steel plate bolt foot reinforcing steel bars, and the steel plate bolt foot reinforcing steel bars penetrate through the concrete locating cushion blocks.

5. The pit-in-pit variable cross-section raft inclined plane rebar positioning structure of claim 4, wherein:

and the steel plate bolt foot steel bars are embedded in the concrete positioning cushion blocks after being welded with the embedded steel plates.

6. The pit-in-pit variable cross-section raft inclined plane rebar positioning structure of claim 1, wherein:

the transverse sleeve is fixedly connected to the top of the positioning plate, and the longitudinal sleeve is fixedly connected to the top of the transverse sleeve.

7. The pit-in-pit variable cross-section raft inclined plane rebar positioning structure according to any one of claims 1-6, wherein:

the locating plate is a rectangular plate, and four locating holes are formed in the rectangular plate and are respectively located at four corners of the rectangular plate.