Steel anchor ring lap joint assembly integral type beam and slab foundation

Abstract

The utility model relates to a steel anchor ring lap joint assembly integral type beam-slab foundation, which belongs to the technical field of wind power foundation structures and comprises a plurality of prefabricated parts arranged in the circumferential direction, each prefabricated part is composed of a platform column, a bottom plate and a rib beam, and a connecting piece is installed at the splicing position of every two adjacent prefabricated parts. The connecting piece comprises a plurality of sets of connecting piece units arranged in parallel in the axial direction of the prefabricated parts, each connecting piece unit comprises an anchoring steel bar pre-buried in the prefabricated parts in advance, sleeves are fixedly connected to the ends of the anchoring steel bars, steel anchor rings are connected to the sleeves in a threaded mode, and the adjacent prefabricated parts are in lap joint in a staggered mode through the steel anchor rings. The same steel bar is inserted into the steel anchor rings, the steel anchor rings are installed at the splicing positions of the adjacent prefabricated parts, the steel bars are inserted into the splicing positions, high-strength grouting materials are poured into the splicing positions, joint construction of the beam-slab foundation is convenient and fast, joint connection is stable, meanwhile, construction complexity of an original steel bar staggered structure is avoided through the steel anchor ring lap joint splicing seam structure, the steel consumption is reduced, and the foundation cost is reduced. The construction speed is accelerated.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power foundation structures and relates to an integral beam-slab foundation assembled by overlapping steel anchor rings. Background Art

[0002] Wind energy is an inexhaustible, renewable and clean energy source. Wind power generation is one of the most promising sustainable projects in the world. To ensure the sustainable development of wind power generation, the wind turbine foundation used to install and fix the wind turbine tower is the key.

[0003] The existing wind power prefabricated beam-slab foundation requires on-site steel bar tying and concrete pouring operations, but the joints of various prefabricated components are mostly made by overlapping and grouting steel bars, which makes the construction of the joint nodes cumbersome and the effect is relatively low. Utility Model Content

[0004] In view of this, in order to solve the problem that the joints of the prefabricated components of the existing wind power assembled beam-slab foundation are mostly made by overlapping and grouting with steel bars, which makes the construction of the joint nodes cumbersome and the effect relatively low, the utility model provides a steel anchor ring overlap assembled integral beam-slab foundation.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A steel anchor ring overlapped assembled integral beam-slab foundation comprises a plurality of prefabricated components arranged circumferentially, each prefabricated component consists of a pedestal, a base plate and a rib beam, connectors are installed at the joints between adjacent prefabricated components, the connectors comprise a plurality of connector units arranged in parallel along the axial direction of the prefabricated components, each connector unit comprises an anchor steel bar embedded in the prefabricated component in advance, a sleeve is fixedly connected to the end of the anchor steel bar, a steel anchor ring is threadedly connected to the sleeve, adjacent prefabricated components are overlapped in a staggered manner by means of the steel anchor rings, and the steel anchor rings are inserted with the same steel rod.

[0007] The beneficial effects of this basic scheme are:

[0008] Furthermore, the steel anchor rings between adjacent prefabricated components are plugged into each other to form a through channel, in which the same steel rod is inserted. Beneficial effect: Connecting adjacent prefabricated anchor plates facilitates subsequent grouting.

[0009] Furthermore, multiple parallel keyways are provided on both sides of the prefabricated component pedestal at the joint, and each row includes four keyways. Beneficial effect: After the keyways are grouted, a bulge is formed, which bears the shear force at the joint between adjacent prefabricated anchor plates, and can also make the poured grouting material and the concrete of the prefabricated component more firmly connected.

[0010] Furthermore, the connecting pieces and two adjacent keyways in each row are arranged alternately up and down.

[0011] Furthermore, a circular lower anchor plate is arranged at the bottom of the prefabricated component, and a circular upper anchor plate is arranged at the top of the prefabricated component.

[0012] Furthermore, a plurality of anchor holes matching the upper anchor plate and the lower anchor plate are provided around the prefabricated component.

[0013] Furthermore, a tower flange is installed on the upper anchor plate. Beneficial effect: Through the tower flange, the wind power assembled beam-slab foundation and the tower are fixedly connected.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model discloses a steel anchor ring overlap assembly integral beam-slab foundation, in which steel anchor rings are installed at the joints of adjacent prefabricated components, and steel rods are inserted into a plurality of steel anchor rings to fix the adjacent prefabricated components as a whole, and then high-strength grouting material is poured at the joints to complete the rapid assembly construction of the wind power assembled beam-slab foundation. The node construction of the entire beam-slab foundation is convenient, and the node connection is stable. At the same time, the overlap joint structure of the steel anchor ring avoids the construction complexity of the original structure with staggered steel bars, saves 40% of steel, further reduces the foundation cost, and speeds up the construction speed.

[0016] 2. The utility model discloses an integral beam-slab foundation assembled by overlapping steel anchor rings. Keyways are arranged on both sides of the prefabricated component columns at the joints. After grouting, bulges are formed. The bulges bear the shear force at the joints between adjacent prefabricated anchor plates, and can also make the poured grouting material and the concrete of the prefabricated components more firmly connected.

[0017] 3. The steel anchor ring overlapped assembled integral beam-slab foundation disclosed in the utility model has an overall structure similar to a cast-in-place foundation structure, avoiding the process of redesigning the overall structure. Reinforcement calculation and actual installation can be performed based on the cast-in-place foundation structure. Construction manufacturers of existing foundation structures can complete all construction processes, thereby reducing production costs and facilitating the promotion and application of prefabricated foundations.

[0018] 4. The steel anchor ring overlap assembly integral beam-slab foundation disclosed in the utility model hoists the prefabricated components to the designated position on site. After the joint overlap is completed, high-strength grouting material is poured to tighten the upper and lower anchor plates. The lower anchor rod is pre-buried in the bottom of the prefabricated components in sections in advance. There are fewer on-site construction processes and the construction period is accelerated. Factory prefabrication can fully guarantee the quality of foundation construction, with less construction pollution. At the same time, the prefabricated components are easy to dismantle after their service life expires, which can realize resource reuse.

[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0021] Figure 1 This is a structural schematic diagram of the utility model of an integral beam-slab foundation assembled by overlapping steel anchor rings;

[0022] Figure 2 This is a structural schematic diagram of the utility model of an integral beam-slab foundation assembled by overlapping steel anchor rings without the upper anchor plate;

[0023] Figure 3 It is a first-view assembly diagram of the connecting parts and prefabricated components in the integral beam-slab foundation assembled by lap-jointing steel anchor rings of the utility model;

[0024] Figure 4 It is a second-view assembly diagram of the connecting parts and prefabricated components in the utility model of the integral beam-slab foundation assembled by overlapping steel anchor rings;

[0025] Figure 5 It is a first-view structural schematic diagram of the connecting member in the utility model of the integral beam-slab foundation assembled by lap-jointing steel anchor rings;

[0026] Figure 6 It is a second perspective structural schematic diagram of the connecting member in the utility model of the integral beam-slab foundation assembled by lap-jointing steel anchor rings;

[0027] Figure 7 This is a schematic diagram of the structure of the steel anchor ring in the utility model of the integral beam-slab foundation assembled by lap-jointing the steel anchor ring;

[0028] Figure 8 This is a structural schematic diagram of the prefabricated components in the utility model of the integral beam-slab foundation assembled by lap-jointing steel anchor rings;

[0029] Fig. 9 It is a third-view assembly diagram of prefabricated components and connecting parts in the utility model of the steel anchor ring overlap assembly integral beam-slab foundation.

[0030] Figure numerals: prefabricated component 1, post-cast strip 2, upper anchor plate 3, connecting piece 4, steel rod 41, sleeve 42, anchor steel bar 43, steel anchor ring 44, anchor bolt hole 5, keyway 6, lower anchor plate 7. DETAILED DESCRIPTION

[0031] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0032] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0033] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] like Figure 1-Figure 9 The steel anchor ring overlap assembly integral beam-slab foundation shown has a basic structure that is basically similar to the integral beam-slab foundation, including multiple prefabricated components 1 arranged circumferentially, each prefabricated component 1 is composed of a pedestal, a bottom plate and a rib beam, and the prefabricated component is designed to be convex in the middle to ensure that the anchor bolts are arranged at equal intervals along the central ring when the component is hoisted. Connectors 4 are installed at the joints between adjacent prefabricated components 1, a circular upper anchor plate 3 is arranged on the top of the prefabricated component 1, a tower flange is installed on the upper anchor plate 3, and the tower flange is used to achieve a fixed connection between the wind power assembled beam-slab foundation and the tower, a circular lower anchor plate 7 is arranged at the bottom of the prefabricated component 1, and multiple anchor holes 5 that are compatible with the upper anchor plate 3 and the lower anchor plate 7 are opened circumferentially on the prefabricated component 1, and the anchor bolts are fixedly connected through the upper anchor plate 3 and the lower anchor plate 7.

[0035] Reference Figure 3-Figure 9Fourteen rows of parallel key grooves 6 are provided on both sides of the prefabricated components 1 at the joint, each row includes four key grooves 6, and two adjacent key grooves 6 in each row form a group, and each group of key grooves 6 and the connecting parts 4 are arranged alternately up and down. The poured grouting material forms a bulge at the key groove 6, which bears the shear force at the joint between adjacent prefabricated components 1, and can also make the poured grouting material and the concrete of the prefabricated component more firmly connected.

[0036] Reference Figure 5-Figure 8 The connector 4 includes several groups of connector units arranged in parallel along the axial direction of the prefabricated component 1, each connector unit includes an anchoring steel bar 43 anchored on the adjacent prefabricated component 1, a sleeve 42 is fixedly connected to the end of the anchoring steel bar 43, a steel anchor ring 44 is threadedly connected to the sleeve 42, and the steel anchor rings 44 between adjacent prefabricated components 1 are plugged into each other to form a through channel, and the same steel rod 41 is inserted in the through channel to connect the adjacent prefabricated components 1 for subsequent grouting.

[0037] When assembling the steel anchor ring lap-jointed integral beam-slab foundation, the lower anchor plates 7 are arranged in sections and placed at the bottom of the prefabricated component 1 in advance. There is no need to assemble again on site. The foundation only needs to be hoisted to a predetermined position. The lower anchor plates 7 of each section do not need to be connected laterally, thereby improving assembly efficiency.

[0038] Several groups of prefabricated components 1 are assembled into a circular ring. After the four steel anchor rings 44 at the joints of adjacent prefabricated components 1 are plugged into each other, steel rods 41 are inserted into the through holes to plug and fix the prefabricated components 1 one by one, so that the adjacent prefabricated components 1 are fixed as a whole and the assembly is completed. After all the prefabricated components 1 are assembled, high-strength grouting material is poured at the joints to form a post-casting strip 2. No additional wet work is required on site, which reduces the construction difficulty and construction period of the foundation and achieves the same stress performance as cast-in-place.

[0039] After the upper anchor plate 3 is constructed by splicing the grouting material and the grouting material reaches a certain strength, it is placed on the top of the foundation, and the anchor rods are passed through the lower anchor plate 7, the reserved anchor holes 5 in the column area, and the upper anchor plate 3 in sequence. The prestressed anchor rods are tensioned to complete the connection between the assembled foundation and the bottom flange of the tower.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A steel anchor ring overlapped assembled integral beam-slab foundation, comprising a plurality of prefabricated components arranged circumferentially, each prefabricated component consisting of a column, a bottom plate and a rib beam, characterized in that: Connectors are installed at the joints between adjacent prefabricated components. The connectors include several groups of connector units arranged in parallel along the axial direction of the prefabricated components. Each of the connector units includes an anchor steel bar pre-embedded in the prefabricated component. A sleeve is fixedly connected to the end of the anchor steel bar. A steel anchor ring is threaded on the sleeve. Adjacent prefabricated components are overlapped in an alternating manner by means of steel anchor rings, and the steel anchor rings are inserted with the same steel rod.

2. The steel anchor ring overlap assembly integral beam-slab foundation as claimed in claim 1, characterized in that: The steel anchor rings between adjacent prefabricated components are plugged into each other to form a through channel, and the same steel rod is inserted into the through channel.

3. The steel anchor ring overlap assembly integral beam-slab foundation as claimed in claim 1, characterized in that: Both sides of the prefabricated component column at the joint are provided with a plurality of parallel key slots, and each row includes four key slots.

4. The steel anchor ring overlap assembly integral beam-slab foundation as claimed in claim 3, characterized in that: The connecting pieces and two adjacent key slots in each row are arranged alternately up and down.

5. The steel anchor ring overlap assembly integral beam-slab foundation as claimed in claim 1, characterized in that: A circular lower anchor plate is arranged at the bottom of the prefabricated component, and a circular upper anchor plate is arranged at the top of the prefabricated component.

6. The steel anchor ring overlap assembly integral beam-slab foundation as claimed in claim 1, characterized in that: The prefabricated component is provided with a plurality of anchor bolt holes which are matched with the upper anchor plate and the lower anchor plate in the circumferential direction.

7. The steel anchor ring overlap assembly integral beam-slab foundation as claimed in claim 5, characterized in that: A tower flange is installed on the upper anchor plate.

Images