CN216195401U

CN216195401U - Assembly type structure connected by UHPC

Info

Publication number: CN216195401U
Application number: CN202122667167.1U
Authority: CN
Inventors: 谢帮华; 涂虎强; 赵江倩; 张勰; 曹汉锋; 邓鹏�; 朱洪二
Original assignee: Zhongqingda Prefabricated Building Co ltd; Nanchang Institute of Technology
Current assignee: Zhongqingda Prefabricated Building Co ltd; Nanchang Institute of Technology
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-05
Anticipated expiration: 2031-11-03

Abstract

The utility model relates to an assembled structure connected by UHPC (ultra high performance polycarbonate), which comprises a bottom plate, wherein a supporting structure and a connecting mechanism are arranged on the bottom plate, the supporting structure comprises a steel bar, a supporting column and a supporting beam, longitudinal bar holes are formed in the supporting column and the supporting beam, the steel bar is arranged in the longitudinal bar holes, two ends of the steel bar are provided with fixed sleeves, the supporting column is connected with the bottom plate, and the supporting beam is arranged above the supporting column; the connecting mechanism comprises a UHPC layer, core concrete, U-shaped grooves and reserved steel bars, the UHPC layer surrounds the core concrete, the UHPC layer is provided with reserved holes, the reserved steel bars penetrate through the reserved holes to be connected with the core concrete in the UHPC layer, and the U-shaped grooves are distributed on different surfaces of the UHPC layer; the supporting column and the supporting beam are connected through the connecting mechanism, the external reserved steel bar of the UHPC layer is connected with the fixed sleeve, and the supporting column and the supporting beam are connected with the U-shaped groove in a post-pouring mode to form a post-pouring section.

Description

Assembly type structure connected by UHPC

Technical Field

The utility model relates to the technical field of assembly type construction, in particular to an assembly type structure connected by UHPC.

Background

The prefabricated structure is a short form of a prefabricated concrete structure, is one of important directions for the development of building structures in China, is beneficial to the development of building industrialization in China, improves production efficiency, saves energy, develops green and environment-friendly buildings, and is beneficial to improving and ensuring the quality of building engineering. In a traditional frame structure prefabricated assembly type building construction system, a supporting beam and a supporting column of prefabricated reinforced concrete are generally adopted, and the supporting beam and the supporting column are connected into a whole through a reinforced concrete post-pouring part to form a frame structure system. The existing commonly used node connection has the defects of complex construction process, high technical requirement and the like, and the overlong reserved steel bars of the members are inconvenient to transport, waste of the steel bars is caused, and the material cost is increased. Therefore, a new prefabricated frame structure system is needed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the deficiencies of the prior art, the present invention provides a modular structure that utilizes UHPC connections.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme: an assembled structure connected by UHPC comprises a bottom plate, wherein a supporting structure and a connecting mechanism are arranged on the bottom plate, the supporting structure comprises a steel bar, a supporting column and a supporting beam, longitudinal bar holes are formed in the supporting column and the supporting beam, the steel bar is installed in the longitudinal bar holes, fixing sleeves are arranged at two ends of the steel bar, one half of the fixing sleeves are connected with the steel bar, the other half of the fixing sleeves are vacant, the supporting column is connected with the bottom plate, and the supporting beam is installed above the supporting column; the connecting mechanism comprises a UHPC layer, core concrete, U-shaped grooves and reserved steel bars, the UHPC layer surrounds the core concrete, the UHPC layer is provided with reserved holes, the reserved steel bars penetrate through the reserved holes to be connected with the core concrete in the UHPC layer, and the U-shaped grooves are distributed on different surfaces of the UHPC layer; the supporting column and the supporting beam are connected through the connecting mechanism, the external reserved steel bar of the UHPC layer is connected with the fixed sleeve, and the supporting column and the supporting beam are connected with the U-shaped groove in a post-pouring mode to form a post-pouring section.

Preferably, the U-shaped grooves are provided with a plurality of U-shaped grooves and are respectively arranged on the UHPC layer.

In a further preferred way, the contact surface of the UHPC layer and the supporting columns and the supporting beams is provided with a bedding layer.

In a further preferred mode, two reserved holes are formed in each surface of the UHPC layer, and longitudinal rib holes in the supporting columns and the supporting beams correspond to the reserved holes.

In a further preferred embodiment, the preformed holes do not touch each other within the core concrete.

Preferably, the bottom plate is provided with an inwardly recessed placing groove, the support column is internally provided with a fixing hole for the reinforcing steel bar to pass through, and the inner wall of the placing groove for mounting the support column is provided with a corresponding mounting groove.

Preferably, a threaded hole is formed in the UHPC layer, a mounting hole corresponding to the threaded hole is formed in the U-shaped groove, and the U-shaped groove is fixedly connected with the UHPC layer through a bolt.

(III) advantageous effects

Compared with the prior art, the utility model provides an assembled structure connected by UHPC, which has the following beneficial effects:

the utility model provides an assembled structure connected by UHPC, because the connecting member is connected with a supporting column by a UHPC post-pouring section, the reserved steel bar passes through the reserved hole of the connecting member and is lapped with the UHPC post-pouring section of the supporting column, the connecting member is connected with an adjacent supporting beam by the UHPC post-pouring section, the UHPC post-pouring section is made of ultra-high performance concrete, compared with the traditional concrete, the assembled structure has high strength, high compactness, excellent durability and high toughness, thereby shortening the lapping length of the reserved steel bar, shortening the lapping length from 35 times of the diameter of the existing reserved steel bar to 10 times of the diameter of the reserved steel bar, not only saving the steel bar consumption, but also obviously reducing the volume of the UHPC post-pouring section, thereby reducing the pouring amount of the UHPC post-pouring section, simultaneously effectively controlling the material consumption and avoiding material waste by using a UHPC layer outside a node, the cost is saved, the whole performance of the core area concrete can be improved by the constraint effect of the UHPC layer on the internal core area concrete, the requirements of strong joint and weak members are met, and the durability of the structure is improved.

Drawings

FIG. 1 is a schematic front view of a fabricated structure using UHPC connection according to the present invention;

FIG. 2 is a schematic view of a connecting structure of the connecting mechanism with the supporting pillars and the supporting beams according to the present invention;

FIG. 3 is a schematic view of the connecting mechanism of the present invention;

FIG. 4 is a schematic view of the connection structure between the connection mechanism and the inside of the support column according to the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 4A according to the present invention;

FIG. 6 is a schematic view of a connection structure of a support pillar and a base plate according to the present invention.

In the figure: 1. a base plate; 2. reinforcing steel bars; 3. a support pillar; 4. a support beam; 5. longitudinal rib holes; 6. fixing a sleeve; 7. a UHPC layer; 8. core concrete; 9. a U-shaped groove; 10. reserving a steel bar; 11. reserving a hole; 12. post-pouring section; 13. setting a slurry layer; 14. a placement groove; 15. a fixing hole; 16. mounting grooves; 17. a threaded hole; 18. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

referring to fig. 1-6, an assembled structure connected by UHPC comprises a bottom plate 1, wherein a supporting structure and a connecting mechanism are arranged on the bottom plate 1, the supporting structure comprises a steel bar 2, a supporting column 3 and a supporting beam 4, longitudinal bar holes 5 are arranged in the supporting column 3 and the supporting beam 4, the steel bar 2 is arranged in the longitudinal bar holes 5, fixing sleeves 6 are arranged at two ends of the steel bar 2, one half of the fixing sleeves 6 are connected with the steel bar 2, the other half of the fixing sleeves are vacant, the supporting column 3 is connected with the bottom plate 1, and the supporting beam 4 is arranged above the supporting column 3; the connecting mechanism comprises a UHPC layer 7, core concrete 8, U-shaped grooves 9 and reserved steel bars 10, the UHPC layer 7 surrounds the core concrete 8, the UHPC layer 7 is provided with reserved holes 11, the reserved steel bars 10 penetrate through the reserved holes 11 to be connected with the core concrete 8 in the UHPC layer 7, and the U-shaped grooves 9 are distributed on different surfaces of the UHPC layer 7; the supporting column 3 and the supporting beam 4 are connected through the connecting mechanism, the external reserved steel bar 10 of the UHPC layer 7 is connected with the fixed sleeve 6, and the supporting column 3 and the supporting beam 4 are connected with the U-shaped groove 9 in a post-pouring mode to form a post-pouring section 12.

In this embodiment, U type groove 9 is provided with a plurality of, and sets up respectively on UHPC layer 7, makes coupling mechanism and support column 3 and supporting beam 4 cooperation, avoids the influence of the U type groove 9 of excessive to assembled structure, can also save material cost simultaneously.

In this embodiment, the contact surface of UHPC layer 7 and support column 3 and a supporting beam 4 is equipped with sitting thick liquid layer 13, produces deformation after avoiding silt solidification, causes UHPC layer 7 and support column 3 and a supporting beam 4's contact surface not to laminate.

In this embodiment, the preformed hole 11 of every one side on UHPC layer 7 is equipped with two, and the vertical muscle hole 5 on support column 3 and the supporting beam 4 corresponds with preformed hole 11, increases the quantity of reinforcing bar 2, improves coupling mechanism's stability.

In this embodiment, the preformed hole 11 does not contact each other in the core concrete 8, so that the preformed steel bars 10 in the preformed hole 11 are prevented from interfering with each other, and the stability of the connecting mechanism is improved.

In this embodiment, be equipped with inside sunken standing groove 14 on bottom plate 1, and be equipped with the fixed orifices 15 that supplies reinforcing bar 2 to pass in the support column 3, and be used for being equipped with corresponding mounting groove 16 on the standing groove 14 inner wall of erection bracing column 3, make the area of contact between bottom plate 1 and the support column 3 increase, make the structure more stable.

In this embodiment, the UHPC layer 7 is provided with a threaded hole 17, the U-shaped groove 9 is provided with a mounting hole 18 corresponding to the threaded hole 17, and the U-shaped groove 9 is fixedly connected with the UHPC layer 7 through a bolt, so that the connection mechanism can be conveniently mounted with the U-shaped groove 9.

The working principle is as follows:

in conclusion, during installation, one end of the support column 3 with the fixing hole 15 faces the placing groove 14, the support column 3 is installed in the placing groove 14, the fixing hole 15 is aligned with the installing groove 16 on the inner wall of the placing groove 14, the reinforcing steel bar 2 penetrates through the fixing hole 15 from the installing groove 16 and extends into the installing groove 16 at the other end of the placing groove 14, and connection between the support column 3 and the bottom plate 1 is completed; planning the number of the U-shaped grooves 9 and the positions of the U-shaped grooves 9 on the UHPC layer 7 as required, if a connecting mechanism in the center needs to install the U-shaped grooves 9 on the periphery of the UHPC layer 7, aligning the U-shaped grooves 9 with the UHPC layer 7, aligning the threaded holes 17 with the mounting holes 18, penetrating bolts through the mounting holes 18 and extending into the threaded holes 17, screwing the bolts to finish fixing, after the U-shaped grooves 9 are arranged, putting the reserved steel bars 10 into the reserved holes 11, and allowing the reserved steel bars 10 to penetrate through the core concrete 8 in the UHPC layer 7; the reinforcing steel bar 2 is placed into the longitudinal bar hole 5 on the supporting column 3 and the supporting beam 4, the fixing sleeve 6 is installed at the connecting end of the reinforcing steel bar 2 and the reserved reinforcing steel bar 10, the supporting column 3 or the supporting beam 4 slides into the U-shaped groove 9 along the opening direction of the U-shaped groove 9, the reserved reinforcing steel bar 10 enters the longitudinal bar hole 5 and is connected with the fixing sleeve 6 in an adapter mode, a mortar layer 13 is poured on the contact surface of the UHPC layer 7, the connecting mechanism and the supporting column 3 or the supporting beam 4 are connected tightly after the mortar layer 13 is solidified, post-pouring operation is conducted on the connecting mechanism, and the post-pouring section 12 is formed to complete fixed connection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fabricated structure using UHPC connection, comprising a base plate (1), characterized in that: the supporting structure comprises a steel bar (2), a supporting column (3) and a supporting beam (4), longitudinal bar holes (5) are formed in the supporting column (3) and the supporting beam (4), the steel bar (2) is installed in the longitudinal bar holes (5), fixing sleeves (6) are arranged at two ends of the steel bar (2), one half of each fixing sleeve (6) is connected with the steel bar (2), the other half of each fixing sleeve is empty, the supporting column (3) is connected with the bottom plate (1), and the supporting beam (4) is installed above the supporting column (3); the connecting mechanism comprises a UHPC layer (7), core concrete (8), U-shaped grooves (9) and reserved steel bars (10), the UHPC layer (7) surrounds the core concrete (8), the UHPC layer (7) is provided with reserved holes (11), the reserved steel bars (10) penetrate through the reserved holes (11) to be connected with the core concrete (8) inside the UHPC layer (7), and the U-shaped grooves (9) are distributed on different surfaces of the UHPC layer (7); the supporting column (3) and the supporting beam (4) are connected through the connecting mechanism, the external reserved steel bar (10) of the UHPC layer (7) is connected with the fixed sleeve (6), and the supporting column (3) and the supporting beam (4) are connected with the U-shaped groove (9) in a post-pouring mode to form a post-pouring section (12).

2. A fabricated structure using UHPC connection according to claim 1, wherein: the U-shaped grooves (9) are provided with a plurality of U-shaped grooves and are respectively arranged on the UHPC layer (7).

3. A fabricated structure using UHPC connection according to claim 1, wherein: and a sitting slurry layer (13) is arranged on the contact surface of the UHPC layer (7) with the support column (3) and the support beam (4).

4. A fabricated structure using UHPC connection according to claim 1, wherein: the number of the preformed holes (11) on each surface of the UHPC layer (7) is two, and the longitudinal rib holes (5) on the supporting columns (3) and the supporting beams (4) correspond to the preformed holes (11).

5. A fabricated structure using UHPC connection according to claim 1, wherein: the preformed holes (11) are not in contact with each other in the core concrete (8).

6. A fabricated structure using UHPC connection according to claim 5, wherein: the novel support column is characterized in that an inwards-concave placing groove (14) is formed in the bottom plate (1), a fixing hole (15) is formed in the support column (3), and a mounting groove (16) corresponding to the fixing hole (15) is formed in the inner wall of the placing groove (14).

7. A fabricated structure using UHPC connection according to claim 1, wherein: the UHPC layer (7) is provided with a threaded hole (17), the U-shaped groove (9) is provided with a mounting hole (18) corresponding to the threaded hole (17), and the U-shaped groove (9) is fixedly connected with the UHPC layer (7) through a bolt.