Grouting cover and container for making standard test piece of load box steel bar connecting piece

Abstract

The present application relates to a kind of partial structures for making load box reinforcement connector standard test piece, especially the grouting cover and container combined into a simulated load box rigid connector.A kind of grouting cover and container for making load box reinforcement connector standard test piece, the grouting cover includes cover bottom plate and cover enclosure, cover bottom plate and cover enclosure form a hollow cylinder with one end opening, cover bottom plate is the bottom plate of cylinder, cover enclosure is the side wall of cylinder, hole for steel bar to pass through is set on cover bottom plate, and through hole is set on cover enclosure, and through hole is used as the passage of external grouting equipment to grout in test piece.The present application has the following advantages:1, effectively solve the actual quality effect evaluation of load box reinforcement connector part after grouting at present;2, standard piece is easy to grout, and it is convenient to use;3, grouting cover body is transparent, whether grouting meets technical requirements can be judged, while two-dimensional code is pre-set when standard test piece is made, to prevent exchange.4, reuse, save cost.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of partial structure for making load box reinforcement connecting piece standard test piece, especially the grouting cover and container combined into a simulated load box rigid connecting piece. BACKGROUND

[0002] In the load box used in the process of engineering pile self-balancing detection, the device has upper and lower bottom plate rigid connecting piece.Engineering pile self-balancing static load test, grouting is carried out in the sleeve of load box rigid connecting piece, so that the steel bar in the cylinder forms rigid connection.But the effect of grouting reinforcement cannot be verified.

[0003] In order to verify the grouting reinforcement effect of rigid connecting piece, we make load box reinforcement connecting piece standard test piece according to actual working condition, so that grouting sampling can be sent for inspection after engineering pile balance static load test. SUMMARY

[0004] The purpose of the present application is to provide a kind of grouting cover for making load box reinforcement connecting piece standard test piece, which can effectively solve the actual quality effect evaluation of load box reinforcement connecting piece part after grouting.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: a kind of grouting cover for making load box reinforcement connecting piece standard test piece, the grouting cover includes cover bottom plate and cover enclosure, the cover bottom plate and the cover enclosure form a hollow column with one end opening, the cover bottom plate is the bottom plate of the column, and the cover enclosure is the side wall of the column, a hole for steel bar to pass through is formed in the cover bottom plate, and a through hole is formed in the cover enclosure, which serves as a channel for external grouting equipment to grout into the test piece.

[0006] Preferably, a steel bar penetrating pipe is arranged at the bottom of the cover bottom plate, and the steel bar penetrating pipe corresponds to and communicates with the hole.

[0007] Preferably, a grout pipe is arranged on the outside of the cover enclosure, and the grout pipe corresponds to and communicates with the through hole.

[0008] Preferably, the grouting cover is made of transparent material.

[0009] Preferably, a two-dimensional code is prearranged in the grouting cover.

[0010] Another purpose of the present application is to provide a kind of container for making load box reinforcement connecting piece standard test piece, which includes hollow pipe and the grouting cover described above; the outer diameter of the hollow pipe is matched with the inner diameter of the grouting cover, and the grouting cover is two, which are respectively installed at the two open ends of the hollow pipe, and the grouting cover at the bottom of the hollow pipe keeps a certain distance from the bottom of the hollow pipe before grouting.

[0011] Preferably, the hole in the grouting cover at the top of the hollow pipe does not correspond to the hole in the grouting cover at the bottom of the hollow pipe.

[0012] Preferably, the through hole on the top grouting cover of the hollow pipe is parallel to the axis of the through hole on the bottom grouting cover.

[0013] The grouting cover, the hollow pipe, the steel bars penetrating the hole and the grouting body are combined to form a standard test piece for making the load box steel bar connecting piece, and the standard test piece is integrated by grouting, and after curing, the test is pulled to obtain the tensile test result.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. The actual quality effect evaluation of the load box steel bar connecting piece part after grouting is effectively solved.

[0016] 2. The standard test piece is easy to grout and convenient to use.

[0017] 3. The cover body of the grouting cover is transparent, the grouting can be judged whether it meets the technical requirements, and a two-dimensional code is preinstalled when the standard test piece is made to prevent replacement.

[0018] 4. Reusable, cost saving. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0020] Figure 2 is a sectional view of Figure 1 ;

[0021] Figure 3 is a schematic diagram of the use process of an embodiment of the present application;

[0022] In the figure, 100 is a grouting cover, 1 is a cover bottom plate, 2 is a cover enclosure, 3 is a steel bar penetrating pipe, 4 is a grout pipe, 5 is a hollow pipe, 6 is a steel bar, and 7 is grout. DETAILED DESCRIPTION

[0023] It should be noted that in the present embodiment, the terms "top", "bottom", "left", "right" and the like are described according to the drawings shown, and do not constitute a limitation on the present application.

[0024] The following will be described in conjunction with the accompanying Figures 1-3 Further details of the present application are as follows: a grouting cover for making a standard test piece of a load box steel bar connecting piece, such as Figure 1As shown, the grouting cover 100 consists of a bottom plate 1, a cover enclosure 2, a reinforcing bar pipe 3, and a grout pipe 4. The bottom plate 1 and the cover enclosure 2 form a column with one open end and a hollow interior. The bottom plate 1 is the base plate of the column, and the cover enclosure 2 is the side wall of the column. A hole for the reinforcing bar 6 to pass through is opened on the bottom plate 1. A reinforcing bar pipe 3 is set outside the hole (at the bottom of the bottom plate 1). The reinforcing bar pipe 3 corresponds to and is connected to the hole. The reinforcing bar 6 passes through the reinforcing bar pipe 3 and the hole. A through hole is opened on the cover enclosure 2. A grout pipe 4 is set outside the through hole (outside the cover enclosure). The grout pipe 4 corresponds to and is connected to the through hole. The grout pipe and the through hole serve as channels for external grouting equipment to inject grout into the specimen.

[0025] There are two grouting caps 100, which are installed at the two open ends of the hollow tube 5 respectively, thus forming a container for making standard test specimens of load box steel bar connectors. The holes on the top grouting cap of the hollow tube do not correspond to the positions of the holes on the bottom grouting cap. At the same time, the through holes on the top grouting cap of the hollow tube are parallel to the axis of the through holes on the bottom grouting cap, so that the steel bars 6 inserted into the container are arranged side by side.

[0026] The standard test specimen for making the load box reinforcement connector is formed by combining the grouting cap 100, the hollow tube 5, the reinforcing bar 6 inserted into the hole, and the grouting material 7.

[0027] The grouting cap has a height of H; the bottom plate diameter is D; the radius of the hole for the rebar is R1, and the distance from the edge to the center of the bottom plate is a; the outer diameter of the grouting pipe is R2. The above letters do not refer to specific values. Those skilled in the art can set them according to actual needs. For example, the radius R1 of the hole for the rebar can just accommodate the rebar, and the upper grouting cap 100 and the hollow pipe 5 can be fixed and sealed with hot melt adhesive.

[0028] To determine whether the grouting meets the technical requirements, the grouting cover 100 is made of transparent material; at the same time, a QR code is pre-installed when making standard test pieces to prevent substitution.

[0029] The steps for fabricating standard specimens of steel reinforcement connectors for load cells are as follows:

[0030] 1. Combine two grouting caps 100 and a hollow tube 5 with a matching inner diameter to form a container for a standard test specimen of a load cell reinforcement connector. For example... Figure 3 As shown in (1) and (2);

[0031] 2. Insert reinforcing bars 6 into the reinforcing pipes 3 at both ends. The ends of the reinforcing bars 6 inserted into the container should have a certain distance L between them and the corresponding bottom plate, where L > H. For example... Figure 3 As shown in (3);

[0032] 3. Inject grout 7 into the grout pipe 4 at the bottom; continue injecting grout until the entire container is filled. (Example) Figure 3As shown in the middle (4);

[0033] 4, force the lower side of the grouting cover 100 up, until the hollow tube 5 pipe orifice closed. As Figure 3 As shown in the middle (5);

[0034] 5, inspection;

[0035] 6, after the slurry has a certain strength, can be removed grouting cover 100, repeated use. As Figure 3 As shown in the middle (6).

[0036] The above examples are merely preferred embodiments of the present application, those skilled in the art can be modified, extended, etc. on the basis of actual needs, without departing from the spirit of the present application, the modifications, extensions, etc., are all within the scope of the present application.

Claims

1. A container for making a load box reinforcement connector standard test specimen, characterized by: The hollow tube, the grouting cover, the outer diameter of the hollow tube and the inner diameter of the grouting cover are matched, the grouting cover is two, which are respectively installed at the two opening ends of the hollow tube, and the grouting cover at the bottom of the hollow tube keeps a certain distance from the bottom of the hollow tube before grouting; The grouting cover comprises a cover bottom plate and a cover enclosure, the cover bottom plate and the cover enclosure form a hollow column with one opening, the cover bottom plate is the bottom plate of the column, and the cover enclosure is the side wall of the column, a hole for passing steel bars is formed in the cover bottom plate, and a through hole is formed in the cover enclosure, which serves as a channel for grouting equipment to grout into the test piece; A steel bar penetrating pipe is arranged at the bottom of the cover bottom plate and is in communication with the hole, and a grout pipe is arranged on the outer side of the cover enclosure and is in communication with the through hole.

2. The container for fabricating load box reinforcement connector standard test specimens of claim 1, wherein: The grouting cover is made of transparent material.

3. The container for fabricating load box reinforcement connector standard test pieces according to claim 2, characterized in that: A two-dimensional code is preinstalled in the grouting cover.

4. The container for fabricating load box reinforcement connector standard test specimens of claim 1, wherein: The hole in the grouting cover at the top of the hollow tube is not in correspondence with the hole in the grouting cover at the bottom of the hollow tube.

5. The container for fabricating load box reinforcement connector standard test specimens of claim 4, wherein: The through hole in the grouting cover at the top of the hollow tube is in parallel with the axis of the through hole in the grouting cover at the bottom of the hollow tube.

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