Concrete prefabricated frame structure of hoistway

Abstract

The utility model relates to a hoistway concrete prefabricated frame structure which comprises four structural columns which are oppositely arranged in pairs, and butt joint grooves are formed in the bottoms of the structural columns. The connecting reinforcing steel bar is arranged in the structural column, and a part of the connecting reinforcing steel bar extends into the butt joint groove to form a connecting section; the sleeve is in threaded connection with the connecting section and is arranged in the butt joint groove; the ring beam is arranged at the tops of the four structural columns, the internal size of the ring beam is consistent with the size of a hoistway, a butt joint end is formed at the top of the ring beam, a plurality of limiting reinforcing steel bars are arranged at the top of the butt joint end, another structural column is arranged at the top of the ring beam, the butt joint groove is in butt joint with the butt joint end, and the limiting reinforcing steel bars are arranged at the top of the ring beam. And the sleeve is screwed, so that the sleeve is connected with the connecting section and the limiting steel bar, the structure is simple, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of secondary structure construction technology in building construction, and specifically refers to a precast concrete frame structure for shafts. Background Technology

[0002] Throughout the construction process of the vertical shaft opening, scaffolding, fully covered scaffold boards, and rigid protective structures are required. This poses certain difficulties for the construction of secondary structure masonry walls and the erection of formwork for structural columns. Furthermore, the construction costs are high, the safety of construction personnel cannot be guaranteed, the construction period is long, and the requirements for green and safe construction cannot be met. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a precast concrete frame structure for shafts. By using precast structural columns and ring beams to save construction time, and by setting a docking groove at the bottom of the structural column, and by placing another precast structure on top of the ring beam and fixing it with a sleeve, the precast structure can be raised.

[0004] The technical solution to achieve the above objectives is a precast concrete frame structure for shafts, comprising:

[0005] Four structural columns are arranged in pairs facing each other, and the bottom of each structural column has a mating groove.

[0006] The connecting steel bars are installed in the structural column, and a portion of the connecting steel bars extends into the butt groove to form a connecting section.

[0007] A sleeve threadedly connected to the connecting section and disposed within the mating groove; and

[0008] A ring beam is installed on top of the four structural columns. The internal dimensions of the ring beam are the same as those of the shaft. A butt joint is formed on the top of the ring beam. Several limiting steel bars are provided on the top of the butt joint. Another structural column is placed on top of the ring beam. The butt joint groove and the butt joint are aligned. The sleeve is screwed on so that the sleeve connects the connecting section and the limiting steel bars.

[0009] Furthermore, the limiting steel bar has an external thread corresponding to the sleeve, and the sleeve is threadedly connected to the external thread.

[0010] Furthermore, a number of tie bars are embedded on the side of the structural column, and the tie bars are spaced apart along the height direction of the structural column. A portion of the tie bars extends outside the structural column to form a tie section.

[0011] Furthermore, the side of the structural column is provided with a plurality of structural beam mounting slots, and the tie section is provided in the structural beam mounting slots.

[0012] Furthermore, the length of the sleeve is adapted to the length of the mating groove.

[0013] Furthermore, the structural columns and the ring beams are arranged perpendicularly.

[0014] Furthermore, the structural columns are made of cast concrete.

[0015] Furthermore, the ring beam is made of cast concrete.

[0016] Furthermore, the height of the structural columns is determined based on the on-site construction.

[0017] Furthermore, the connecting groove is located at the corner of the structural column. Compared with the prior art, this utility model has the following advantages:

[0018] By using prefabricated structural columns and ring beams to save construction time, and by setting a docking groove at the bottom of the structural column, another prefabricated structure is placed on top of the ring beam and fixed with a sleeve to elevate the prefabricated structure. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of a precast concrete frame structure for a shaft.

[0020] Legend: 1. Structural column; 2. Connecting groove; 3. Ring beam; 4. Limiting reinforcement; 5. Tie bar. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] See Figure 1 A precast concrete frame structure for a shaft includes: four structural columns 1 arranged in pairs facing each other, with a butt groove 2 formed at the bottom of each structural column; connecting steel bars disposed within each structural column 1, with a portion of the connecting steel bars extending into the butt groove 2 to form a connecting section; a sleeve threadedly connected to the connecting section and disposed within the butt groove 2; and a ring beam 3 disposed at the top of the four structural columns 1, the internal dimensions of the ring beam being consistent with the dimensions of the shaft, a butt end formed at the top of the ring beam, and a plurality of limiting steel bars disposed at the top of the butt end. Another structural column is placed on top of the ring beam, the butt groove and the butt end are aligned, and the sleeve is screwed on to connect the connecting section and the limiting steel bars.

[0023] In this utility model, a preferred embodiment is as follows: The location of the structural column is marked out to determine its placement. Rebar is embedded in the construction surface, corresponding to the location of the structural column. Preferably, during the pouring of the construction surface, the rebar is pre-embedded in the surface, with a portion reserved so that this portion is above the surface. After the surface is poured, the portion of the rebar exposed forms a section with external threads. The structural column 1 is placed on the construction surface, and the section is placed in the mating groove 2. The sleeve is then screwed on. Part of the sleeve is detached from the connecting section and threaded onto the setting section to fix the structural column 1. Preferably, the length of the setting section is adapted to the depth of the docking groove 2. After the sleeve is screwed on, the docking groove 2 is sealed by pouring concrete. Then, the ring beam 3 located at the top is connected to the structural column 1 of another precast structure. The limiting steel bar 4 at the top of the ring beam 3 is inserted into the docking groove 2 of the structural column 1 of the other precast structure. By screwing on the sleeve, the sleeve connects the limiting steel bar 4 and the connecting section. After the connection is completed, it is sealed with concrete. This process is repeated until the precast structure is erected to the predetermined position.

[0024] Preferably, the structural column 1 is composed of two oppositely arranged right-angle columns and a reserved door frame column opposite to the right-angle columns. The two reserved door frame columns are arranged opposite to each other. The ring beam 3 is composed of a door lintel set on the top of the two reserved door frame columns, a first ring beam 3 unit connecting the oppositely arranged reserved door frame columns and the right-angle columns, and a second ring beam 3 unit connecting the two oppositely arranged right-angle columns. The first ring beam 3 unit, the second ring beam 3 unit and the door lintel are an integral structure.

[0025] Furthermore, during the pouring of the ring beam 3, the limiting steel bar 4 is pre-embedded inside the ring beam 3. Part of the limiting steel bar 4 protrudes from the top of the ring beam 3. After the ring beam 3 is poured, the part of the limiting steel bar 4 protruding from the top of the ring beam 3 is used to connect with the sleeve to connect the two prefabricated structures.

[0026] Furthermore, the limiting steel bar 4 has an external thread corresponding to the sleeve, and the sleeve is threadedly connected to the external thread. When fixing the two prefabricated structures, the sleeve is screwed downwards, causing a portion of the sleeve to disengage from the connecting section and threadedly connected to the limiting steel bar 4, thereby connecting the two limiting structures.

[0027] Furthermore, a plurality of tie bars 5 are embedded in the side of the structural column 1. The tie bars 5 are spaced apart along the height direction of the structural column 1, and a portion of the tie bars 5 extends outside the structural column 1 to form a tie section. The tie bars 5 facilitate the subsequent installation of structural beams or other structural units.

[0028] Preferably, tie bars 5 are provided in the vertical direction of the two right-angle columns and in the opposite direction of the reserved door frame column.

[0029] Preferably, the side of the structural column 1 has a plurality of structural beam mounting slots, and the tie section is provided in the structural beam mounting slots.

[0030] Furthermore, the length of the sleeve is adapted to the length of the docking groove 2.

[0031] Furthermore, the structural column 1 and the ring beam 3 are arranged perpendicularly.

[0032] Furthermore, the structural column 1 is made of cast concrete.

[0033] Furthermore, the ring beam 3 is made of cast concrete.

[0034] Furthermore, the height of the structural column 1 is determined based on the on-site construction.

[0035] Furthermore, the docking groove 2 is located at the corner of the structural column 1.

[0036] The following describes the application process of the precast concrete frame structure for shafts according to this utility model.

[0037] The location of the structural column is marked out to determine its placement. Rebar is then embedded in the construction surface, corresponding to the column's location. Preferably, the rebar is pre-embedded in the construction surface during pouring, with a portion reserved above the surface. After pouring, the exposed portion forms a section with external threads. The structural column 1 is then placed on the construction surface, and this section is positioned within the connecting groove 2. The sleeve is then tightened, causing a portion of the sleeve to disengage from the connecting section. The threaded connection is used to fix the structural column 1 on the set section. Preferably, the length of the set section is matched with the depth of the docking groove 2. After the sleeve is screwed on, the docking groove 2 is sealed by pouring concrete. Then, the ring beam 3 located at the top is connected to the structural column 1 of another precast structure. The limiting steel bar 4 at the top of the ring beam 3 is inserted into the docking groove 2 of the structural column 1 of the other precast structure. By screwing on the sleeve, the sleeve connects the limiting steel bar 4 and the connecting section. After the connection is completed, it is sealed with concrete. This process is repeated until the precast structure is erected to the predetermined position.

[0038] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A precast concrete frame structure for a shaft, characterized in that it comprises: Four structural columns are arranged in pairs facing each other, and the bottom of each structural column has a mating groove. The connecting steel bars are installed in the structural column, and a portion of the connecting steel bars extends into the butt groove to form a connecting section. A sleeve threadedly connected to the connecting section and disposed within the mating groove; as well as A ring beam is installed on top of the four structural columns. The internal dimensions of the ring beam are the same as those of the shaft. A butt joint is formed on the top of the ring beam. Several limiting steel bars are provided on the top of the butt joint. Another structural column is placed on top of the ring beam. The butt joint groove and the butt joint are aligned. The sleeve is screwed on so that the sleeve connects the connecting section and the limiting steel bars.

2. The precast concrete frame structure for a shaft as described in claim 1, characterized in that: The limiting steel bar has an external thread corresponding to the sleeve, and the sleeve is threadedly connected to the external thread.

3. The precast concrete frame structure for a shaft as described in claim 1, characterized in that: The structural column has several tie bars embedded on its side. The tie bars are spaced apart along the height of the structural column, and some of the tie bars extend outside the structural column to form tie sections.

4. The precast concrete frame structure for a shaft as described in claim 3, characterized in that: The side of the structural column has a plurality of structural beam mounting slots, and the tie section is provided in the structural beam mounting slots.

5. A precast concrete frame structure for a shaft as described in claim 1, characterized in that: The length of the sleeve is adapted to the length of the docking groove.

6. A precast concrete frame structure for a shaft as described in claim 1, characterized in that: The structural columns and the ring beams are arranged perpendicularly.

7. A precast concrete frame structure for a shaft as described in claim 1, characterized in that: The structural columns are made of cast concrete.

8. A precast concrete frame structure for a shaft according to claim 1, characterized in that: The ring beam is made of cast concrete.

9. A precast concrete frame structure for a shaft according to claim 1, characterized in that: The height of the structural columns is determined based on the on-site construction.

10. A precast concrete frame structure for a shaft according to claim 1, characterized in that: The docking groove is located at the corner of the structural column.

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