Fabricated foundation connecting structure for outdoor pipeline

Abstract

The utility model discloses an assembly type foundation connecting structure for an outdoor pipeline, relates to the technical field of assembly type foundation connecting structures, and provides the following scheme that the assembly type foundation connecting structure comprises a foundation cushion layer. According to the assembly type foundation connecting structure for the outdoor pipeline, in the using process, four sets of embedded bolts are installed in the prefabricated foundation bearing platform in advance and correspond to preformed holes formed in the side edges of the lower embedded steel plate at the top, and before a prefabricated rectangular column is hoisted, leveling nuts are installed at the tops of the embedded bolts; the height of the leveling nuts is kept consistent through a level gauge, the installation precision is ensured, installation deflection of the prefabricated rectangular column is avoided, the embedded bolts can be welded to a foundation platform reinforcing mesh, the influence of the concrete pouring and prefabricating process on bolt positioning can be effectively prevented, the connecting part of the prefabricated part is installed in a bolt leveling mode, and the installation efficiency is improved. Therefore, the elevation of the molding surface of the column top can be adjusted, and the quality defect caused by poor control of the casting elevation precision of the cushion layer is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of assembly type foundation connecting structure, especially relates to an assembly type foundation connecting structure for outdoor pipeline. BACKGROUND

[0002] During the installation of outdoor pipeline, especially long-distance pipeline, the foundation connecting structure needs to be used for effective fixing and installation during the installation process.

[0003] In the comparative file (patent number: CN208884563U), a bolted assembly type foundation technical scheme is disclosed, which is characterized in that the foundation cushion layer, the prefabricated foundation bottom plate, the prefabricated foundation column and the bracket anchor bolt are used, the foundation cushion layer is a cast-in-place concrete cushion layer, which plays a role in making the prefabricated foundation bottom plate bear stress on the same plane, the four corners of the prefabricated foundation bottom plate below are placed with concrete cushion blocks with the same thickness as the foundation cushion layer, which compensates for the error of earth excavation before the foundation cushion layer is poured, plays a role in leveling, the prefabricated foundation bottom plate and the prefabricated foundation column can be prefabricated in a processing plant or a reserved site, the utility model is not restricted by adverse factors such as construction site, environment and temperature, and seasonality, and can be successfully constructed, safe and reliable, guaranteeing construction quality, saving labor cost, greatly improving construction efficiency, greatly shortening construction period, realizing standardized design and production, conforming to the national energy-saving and emission-reducing policy, filling the gap in domestic substation engineering, being one of the development directions of substation engineering foundation construction and having promotional value.

[0004] However, the prefabricated foundation column and the pile cap connection form are bolted, the prefabricated foundation column cannot effectively resist lateral impact force, the exposed bottom plate needs to be treated twice after being connected with the prefabricated main column, which is relatively time-consuming, the prefabricated part has high precision requirements for the embedded part, the foundation short column and the foundation bottom plate adopt a connection mode, which has high precision requirements for the embedded part during construction, the hook is integrally embedded into the foundation short column and the foundation bottom plate and cannot be taken out for recycling, and the prefabricated foundation column has high precision requirements for positioning to the foundation bottom plate during hoisting and positioning, therefore, the utility model provides an assembly type foundation connecting structure for outdoor pipeline. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an assembly type foundation connecting structure for outdoor pipeline, which solves the problems of high precision requirements of the prefabricated part for the embedded part and high precision requirements for positioning to the foundation bottom plate in the prior art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: An outdoor pipeline assembly type foundation connection structure, including foundation cushion, the top of foundation cushion is paved with polymer mortar, the top of polymer mortar is placed with prefabricated foundation pile cap, the top of prefabricated foundation pile cap is provided with four groups of lifting ring, the inside of prefabricated foundation pile cap is poured with foundation pile cap reinforced mesh, the top of foundation pile cap reinforced mesh is pre -buried and is installed with embedded bolt, the upper portion of embedded bolt is installed with leveling nut, the top of leveling nut is installed with lower embedded steel sheet, the top of lower embedded steel sheet is installed with fixed nut with the position of embedded bolt, the center position of prefabricated foundation pile cap is provided with grouting groove, the inside top of prefabricated foundation pile cap is installed with embedded silk cylinder with the position of lifting ring, the top of lower embedded steel sheet is poured with prefabricated rectangular column, the inside of prefabricated rectangular column is embedded with rectangular column reinforced skeleton, the top of prefabricated rectangular column is poured with top embedded steel sheet, the lower portion of lower embedded steel sheet is installed with steel groove.

[0007] Preferably, the polymer mortar is uniformly laid on the top of the foundation cushion, and the thickness of the polymer mortar is 8-10mm.

[0008] Preferably, the lifting ring forms a detachable structure between the embedded silk cylinder and the prefabricated foundation pile cap, and the lifting ring and the embedded silk cylinder are threadedly connected.

[0009] Preferably, the embedded bolt is pre-installed with four groups inside the prefabricated foundation pile cap, the leveling nut and the embedded bolt are threadedly connected, and the leveling nuts are kept horizontal.

[0010] Preferably, the prefabricated rectangular column is positionally corresponding between the lower embedded steel sheet and the embedded bolt, the prefabricated rectangular column is provided with a lifting ring on the top, the lower embedded steel sheet and the prefabricated rectangular column are fixed, and the fixed nut is screw-installed on the top of the lower embedded steel sheet and the embedded bolt.

[0011] Preferably, the prefabricated rectangular column is positionally corresponding between the steel groove and the grouting groove, and the steel groove and the grouting groove are cast-connected.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] During use, four sets of pre-embedded bolts are pre-installed inside the precast foundation platform, corresponding to the reserved holes opened on the side of the pre-embedded steel plate at the bottom. Before hoisting the precast rectangular column, leveling nuts are installed on the top of the pre-embedded bolts, and a level is used to ensure that the height between the leveling nuts is consistent, ensuring installation accuracy and avoiding the precast rectangular column from being installed crookedly. The pre-embedded bolts can be welded to the steel mesh of the foundation platform, which can effectively prevent the impact of the concrete pouring precast process on the bolt positioning. Furthermore, the precast component connection part is installed by bolt leveling, which makes the elevation of the forming surface of the column top adjustable, which can effectively improve the installation accuracy of the column top and effectively avoid quality defects caused by poor control of the elevation accuracy of the foundation pouring.

[0014] During use, while hoisting the precast rectangular column and fixing it to the precast foundation, it is necessary to ensure that the steel channel is inserted into the grouting trench. Then, high-strength grout or a higher-grade micro-expansion fine stone concrete is used to pour the grouting trench, so that the grouting trench and the steel channel are fixed together by pouring. After finishing and leveling, the steel channel is welded to the precast rectangular column under the precast rectangular column. After secondary grouting, the reliability of the connection node between the precast foundation and the precast rectangular column can be effectively improved. The traditional monolithic foundation is decomposed into two precast parts, reducing the weight of single-piece hoisting and transportation. On the other hand, it can improve the space utilization rate of prefabricated components during transportation and loading, and reduce the dependence on large hoisting machinery. The precast rectangular column top embedded steel plate is cast integrally with the precast rectangular column in one go. After the foundation is installed as a whole, the welding and installation of the superstructure can be carried out directly, saving the construction period and improving the construction efficiency of outdoor foundation and pipeline installation. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of an assembled foundation connection structure for outdoor pipelines proposed in this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the prefabricated foundation connection structure for outdoor pipelines proposed in this utility model.

[0017] Figure 3 This is a top view schematic diagram of an assembled foundation connection structure for outdoor pipelines proposed in this utility model.

[0018] Figure 4 This utility model proposes a prefabricated foundation connection structure for outdoor pipelines. Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 This utility model proposes a prefabricated foundation connection structure for outdoor pipelines. Figure 2 Enlarged structural diagram at point B;

[0020] Figure 6 The utility model provides a kind of lower pre-buried steel plate and pre-buried bolt mounting structure schematic view of assembly type foundation connection structure for outdoor pipeline.

[0021] In the drawing: 1, foundation cushion layer;2, polymer mortar;3, prefabricated foundation pile cap;4, pre-buried bolt;5, leveling nut;6, lower pre-buried steel plate;7, fixed nut;8, grouting groove;9, steel tank;10, pre-buried silk cylinder;11, lifting ring;12, prefabricated rectangular column;13, rectangular column reinforcement cage;14, top pre-buried steel plate;15, foundation pile cap reinforcement mesh. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] Embodiment 1

[0024] As Figures 1-6 shown, a kind of assembly type foundation connection structure for outdoor pipeline in the drawing, including foundation cushion layer 1, polymer mortar 2 is laid on the top of foundation cushion layer 1, prefabricated foundation pile cap 3 is placed in the upper portion of polymer mortar 2, four groups of lifting ring 11 are symmetrically arranged on the top of prefabricated foundation pile cap 3, foundation pile cap reinforcement mesh 15 is poured in the inside of prefabricated foundation pile cap 3, pre-buried bolt 4 is installed in the upper portion of foundation pile cap reinforcement mesh 15, leveling nut 5 is installed in the upper portion of pre-buried bolt 4, lower pre-buried steel plate 6 is installed in the upper portion of leveling nut 5, fixed nut 7 is installed in the upper portion of lower pre-buried steel plate 6 corresponding position with pre-buried bolt 4, grouting groove 8 is set in the center position of prefabricated foundation pile cap 3, pre-buried silk cylinder 10 is installed in the inside upper portion of prefabricated foundation pile cap 3 corresponding position with lifting ring 11, prefabricated rectangular column 12 is poured in the top of lower pre-buried steel plate 6, rectangular column reinforcement cage 13 is pre-buried in the inside of prefabricated rectangular column 12, top pre-buried steel plate 14 is poured in the top of prefabricated rectangular column 12, steel tank 9 is installed in the lower portion of lower pre-buried steel plate 6 middle part.

[0025] The polymer mortar 2 is uniformly laid on the top of the foundation cushion 1, and the thickness of the polymer mortar 2 is 8-10 mm, so that the prefabricated foundation pile cap 3 increases the adhesion between the foundation cushion 1 when placed, ensures the firm connection between the prefabricated foundation pile cap 3 and the foundation cushion 1, and the moderate thickness ensures the combination of the prefabricated foundation pile cap 3 and the foundation cushion 1, improves the overall stability, the foundation cushion 1 is cast in place, and the prefabricated foundation pile cap 3 and the prefabricated rectangular column 12 can be prefabricated by a building fabricated component processing plant to ensure the batch prefabricated processing quality.

[0026] The lifting ring 11 and the embedded sleeve 10 form a detachable structure, and the lifting ring 11 and the embedded sleeve 10 are threadedly connected, the lifting ring 11 is installed on the top of the prefabricated foundation pile cap 3 through the embedded sleeve 10, the prefabricated foundation pile cap 3 can be hoisted and positioned by using a steel wire lifting rope of a hoisting machine, and the lifting ring 11 can be removed from the top of the prefabricated foundation pile cap 3 after the installation is completed, the connection mode of the lifting ring 11 screwed into the embedded sleeve 10 improves the lifting ring 11 node, so that the lifting ring 11 can be removed after hoisting and reused.

[0027] The embedded bolts 4 are internally preset in four groups in the prefabricated foundation pile cap 3, the leveling nuts 5 and the embedded bolts 4 are threadedly connected, the leveling nuts 5 are kept horizontal with each other, four groups of embedded bolts 4 are internally preset in the prefabricated foundation pile cap 3, and therefore correspond to the reserved holes opened in the side of the lower embedded steel plate 6 on the top, the leveling nuts 5 are installed on the top of the embedded bolts 4 before hoisting the prefabricated rectangular column 12, and a level is used to keep the height of the leveling nuts 5 consistent, so as to ensure the installation accuracy and avoid the installation of the prefabricated rectangular column 12 being skewed, and the embedded bolts 4 can be welded with the foundation pile cap reinforcing mesh 15, which can effectively prevent the influence of the concrete pouring prefabrication process on the bolt positioning, and the bolt leveling mode is used for installation of the prefabricated component connection part, so that the elevation of the column top forming surface can be adjusted, which can effectively improve the column top installation accuracy and effectively avoid quality defects caused by poor cushion pouring elevation accuracy control.

[0028] The prefabricated rectangular column 12 is fixed with the lower embedded steel plate 6 through the position corresponding to the embedded bolt 4. The top of the prefabricated rectangular column 12 is provided with a lifting ring 11. The lower embedded steel plate 6 is fixed with the prefabricated rectangular column 12. The fixed nut 7 is screwed on the embedded bolt 4 above the lower embedded steel plate 6. The prefabricated rectangular column 12 is hoisted by the lifting ring 11 through the steel wire rope hung by the hoisting machine. The prefabricated rectangular column 12 is positioned and installed by the embedded bolt 4 inserted through the reserved hole of the lower embedded steel plate 6. The position of the lower embedded steel plate 6 is fixed by the fixed nut 7 after positioning. The connection between the prefabricated foundation pile cap 3 and the prefabricated rectangular column 12 is completed. The rectangular column reinforcement cage 13 at the top of the prefabricated rectangular column 12 can be welded with steel columns, pipeline supports, brackets and other facilities, so as to improve the versatility of the outdoor prefabricated foundation.

[0029] The prefabricated rectangular column 12 is fixed with the lower embedded steel plate 6 through the position corresponding to the embedded bolt 4. The top of the prefabricated rectangular column 12 is provided with a lifting ring 11. The lower embedded steel plate 6 is fixed with the prefabricated rectangular column 12. The fixed nut 7 is screwed on the embedded bolt 4 above the lower embedded steel plate 6. The prefabricated rectangular column 12 is hoisted by the lifting ring 11 through the steel wire rope hung by the hoisting machine. The prefabricated rectangular column 12 is positioned and installed by the embedded bolt 4 inserted through the reserved hole of the lower embedded steel plate 6. The position of the lower embedded steel plate 6 is fixed by the fixed nut 7 after positioning. The connection between the prefabricated foundation pile cap 3 and the prefabricated rectangular column 12 is completed. The rectangular column reinforcement cage 13 at the top of the prefabricated rectangular column 12 can be welded with steel columns, pipeline supports, brackets and other facilities, so as to improve the versatility of the outdoor prefabricated foundation.

[0030] In use: first, the base cushion 1 which meets the design strength requirement is poured, the contact prefabricated foundation cushion 3 part is roughened to increase the surface roughness, the prefabricated foundation cushion 3 positioning control line frame is marked on the base cushion 1, and the prefabricated foundation cushion 3 is pre-paved in the control line frame, and the uniform pre-paving is required, and the thickness is preferably controlled in the range of 8-10mm, then the hoisting machinery is used, the steel wire rope is hung through the lifting ring 11 to complete the hoisting positioning of the prefabricated foundation cushion 3, the leveling nut 5 and the gasket are installed by embedding the bolt 4 in the prefabricated foundation cushion 3, the leveling nut 5 elevation is detected and controlled by using the level, the installation accuracy is ensured, the hoisting machinery is used, the steel wire rope is hung through the lifting ring 11 to complete the hoisting of the prefabricated rectangular column 12, the positioning installation is carried out by passing the embedded bolt 4 through the lower embedded steel plate 6 reserved hole in the prefabricated rectangular column 12, and the steel groove 9 is ensured to pass into the grouting groove 8, after the prefabricated rectangular column 12 is hoisted, the prefabricated rectangular column 12 is fixed by using the fixing nut 7, the connection between the prefabricated foundation cushion 3 and the prefabricated rectangular column 12 is completed, the grouting groove 8 is poured by using high-strength grouting material or high-grade micro-expansion fine stone concrete, and the surface is finished and leveled, finally, the lifting ring 11 is manually removed, and the lifting ring 11 can be recycled and reused.

[0031] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A prefabricated foundation connection structure for outdoor pipelines, comprising a foundation pad (1), characterized in that: The top of the foundation pad (1) is covered with polymer mortar (2), and a precast foundation platform (3) is placed on top of the polymer mortar (2). Four sets of lifting rings (11) are symmetrically arranged on the top of the precast foundation platform (3). The interior of the precast foundation platform (3) is filled with a foundation platform steel mesh (15). An embedded bolt (4) is pre-installed above the foundation platform steel mesh (15). A leveling nut (5) is installed on the upper part of the embedded bolt (4). A lower embedded steel plate (6) is installed above the leveling nut (5). The upper part of the lower embedded steel plate (6) is... A fixing nut (7) is installed at the position corresponding to the pre-embedded bolt (4). A grouting groove (8) is opened at the center of the precast foundation platform (3). Pre-embedded wire cylinders (10) are installed at the upper part of the precast foundation platform (3) at the position corresponding to the lifting ring (11). A precast rectangular column (12) is poured on the top of the lower pre-embedded steel plate (6). A rectangular column steel reinforcement skeleton (13) is pre-embedded inside the precast rectangular column (12). A top pre-embedded steel plate (14) is poured on the top of the precast rectangular column (12). A steel channel (9) is installed below the middle part of the lower pre-embedded steel plate (6).

2. The prefabricated foundation connection structure for outdoor pipelines according to claim 1, characterized in that: The polymer mortar (2) is evenly laid on top of the base layer (1), and the thickness of the polymer mortar (2) is 8-10 mm.

3. The prefabricated foundation connection structure for outdoor pipelines according to claim 1, characterized in that: The lifting ring (11) forms a detachable structure with the pre-embedded threaded tube (10) and the precast foundation platform (3), and the lifting ring (11) and the pre-embedded threaded tube (10) are connected by threads.

4. The prefabricated foundation connection structure for outdoor pipelines according to claim 1, characterized in that: Four sets of the pre-embedded bolts (4) are pre-installed inside the precast foundation platform (3). The leveling nuts (5) are threadedly connected to the pre-embedded bolts (4), and the leveling nuts (5) are kept horizontal to each other.

5. The prefabricated foundation connection structure for outdoor pipelines according to claim 1, characterized in that: The precast rectangular column (12) is positioned with the lower embedded steel plate (6) and the embedded bolt (4) corresponding to each other. A lifting ring (11) is installed on the top of the precast rectangular column (12). The lower embedded steel plate (6) and the precast rectangular column (12) are fixed to each other. The fixing nut (7) is screwed on the lower embedded steel plate (6) and the embedded bolt (4).

6. The prefabricated foundation connection structure for outdoor pipelines according to claim 1, characterized in that: The precast rectangular column (12) is positioned in a steel channel (9) and a grouting channel (8), and the steel channel (9) and the grouting channel (8) are connected by casting.

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