Prefabricated door frame structure

Abstract

The utility model discloses a prefabricated assembly type door frame structure which comprises a prefabricated column and a prefabricated lintel perpendicularly connected to the top of the prefabricated column, a plurality of longitudinal bars are arranged in the prefabricated column, and a construction groove is formed in the bottom of the prefabricated column. The tops of the longitudinal bars are fixedly connected with upper connecting steel bars extending out of the surfaces of the prefabricated columns, the bottoms of the longitudinal bars are fixedly connected with lower connecting steel bars extending into the construction grooves, and the upper connecting steel bars penetrate through the prefabricated lintels and are fixedly connected with the upper adjacent prefabricated columns through first connecting sleeves. According to the construction column formwork, the problems that a traditional construction column formwork is complex in erecting and dismantling process, concrete is difficult to transport and pour, vibration is not compact and the like are solved, the construction process is simplified, the construction efficiency is improved, and the construction column formwork has certain popularization value.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary structure construction, in particular to a prefabricated assembled door frame structure. Background Art

[0002] In the process of secondary structure construction, the construction of the structural columns and masonry of the traditional secondary structure is to plant reinforcement at the location of the structural columns, and the length of the reinforcement is relatively long, which affects the installation and positioning of the structural column reinforcement cage in the later stage, increases the difficulty of the construction process and reduces the construction efficiency. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a prefabricated assembled door frame structure, which solves the difficulties of traditional structural column formwork erection and dismantling complex processes, as well as the difficulties in concrete transportation and pouring, and the lack of compaction through vibration, thereby simplifying the construction process and improving construction efficiency.

[0004] In order to achieve the above technical effects, the utility model provides a prefabricated assembled door frame structure, which includes:

[0005] A prefabricated column and a prefabricated lintel vertically connected to the top of the prefabricated column, wherein a plurality of longitudinal reinforcements are arranged inside the prefabricated column, and a construction groove is arranged at the bottom of the prefabricated column. The top of the longitudinal reinforcement is fixedly connected with an upper connecting steel bar extending from the surface of the prefabricated column, and the bottom is fixedly connected with a lower connecting steel bar extending into the construction groove. The upper connecting steel bar passes through the prefabricated lintel and is fixedly connected to the upper adjacent prefabricated column through a first connecting sleeve, and the lower connecting steel bar is fixedly connected to the beam bottom embedded reinforcement through a second connecting sleeve.

[0006] Preferably, a reserved hole for the upper connecting steel bar to pass through is opened at the end of the prefabricated lintel.

[0007] Preferably, a plurality of stirrups are evenly and spaced apart inside the prefabricated column along the height direction, and the plurality of stirrups are respectively arranged around the plurality of longitudinal bars.

[0008] Preferably, the prefabricated column is provided with reserved tooth joints on two side surfaces perpendicular to the length direction of the prefabricated lintel.

[0009] Preferably, a tie bar is fixedly installed in at least one of the reserved tooth joints.

[0010] Preferably, the prefabricated column is fixedly connected with a waist beam on two side surfaces perpendicular to the length direction of the prefabricated lintel, and the waist beam is penetrated along the length direction with reserved waist beam steel bars for fixedly connecting the waist beam to the prefabricated column.

[0011] Preferably, the waist beam is provided at the top of the precast column and below the precast lintel.

[0012] Due to the adoption of the above technical solution, the technical effects achieved by the present utility model are as follows:

[0013] By prefabricating the structural column and the door frame lintel in the factory, the construction quality is improved, the construction is safe and reliable, the construction speed is increased, and the construction cost is reduced. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a three-dimensional view of the prefabricated and assembled door frame structure of the present utility model.

[0016] Figure 2 It is Figure 1 an enlarged view of the structure at A in

[0017] The corresponding relationship between the reference numerals in the drawings is as follows:

[0018] 1 - precast column; 2 - precast lintel; 3 - longitudinal reinforcement; 4 - stirrup; 5 - construction groove; 6 - upper connecting reinforcement; 7 - lower connecting reinforcement; 8 - first connecting sleeve; 9 - second connecting sleeve; 10 - reserved hole; 11 - reserved tooth-like projections; 12 - tie bar; 13 - waist beam; 14 - reserved reinforcement of the waist beam. Detailed Embodiment

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0020] Please refer to Figure 1 and Figure 2As shown in the figure, the embodiment of the present utility model provides a prefabricated and assembled door frame structure, which includes a precast column 1 and a precast lintel 2 vertically connected to the top of the precast column 1. A number of longitudinal bars 2 are provided inside the precast column 1. A construction groove 5 is provided at the bottom of the precast column 1. The bottom of the longitudinal bar 2 is fixedly connected with an upper connecting steel bar 6 extending out of the surface of the precast column 1, and the bottom is fixedly connected with a lower connecting steel bar 7 extending into the construction groove 5. The upper connecting steel bar 6 passes through the precast lintel 2 and is fixedly connected with the adjacent upper precast column 1 through a first connecting sleeve 8. The lower connecting steel bar 7 is fixedly connected with the steel bars implanted at the bottom of the beam through a second connecting sleeve 9. It should be noted that by respectively arranging the upper connecting steel bar and the lower connecting steel bar at both ends of the precast column 1 and reserving the construction groove, the welding process is avoided, there is no overlapping part, and the implanted steel bars will not interfere with the insertion and positioning of the precast column 1. Then, a stable connection is carried out through the steel bar connecting sleeve, with good supporting performance, fast construction speed and efficiency, greatly reducing the construction period, and being green and environmentally friendly.

[0021] Furthermore, a reserved hole 10 for the upper connecting steel bar 6 to pass through is correspondingly opened at the end of the precast lintel 2. A number of stirrups 4 are evenly and spaced along the height direction inside the precast column 1, and the number of stirrups 4 are respectively arranged around the number of longitudinal bars 2. In this embodiment, the stirrups 4 are arranged at an interval of 200 mm. Preferably, reserved tooth-like joints 11 are provided on both sides of the precast column 1 perpendicular to the length direction of the precast lintel 2, and a tie bar 12 is fixedly installed in at least one notch of the reserved tooth-like joint 11.

[0022] Even further, waist beams 13 are fixedly connected to both sides of the precast column perpendicular to the length direction of the precast lintel 2. A waist beam reserved steel bar 14 for fixedly connecting the waist beam 13 with the precast column 1 runs through along the length direction inside the waist beam 13. The waist beam 13 is arranged at the top of the precast column 1 and below the precast lintel 2.

[0023] Adopting the prefabricated and assembled door frame structure of the present utility model can solve the problems of the complex processes of erecting and demolishing the formwork of the previous construction columns, the difficulties in transporting and pouring concrete, and the poor compaction during vibration. It greatly simplifies the construction, has a fast construction speed, shortens the construction period, reduces the costs of labor, materials and machinery, achieves the purpose of cost reduction and efficiency increase, provides assistance for the development of the enterprise, and has a certain value for popularization.

[0024] Parts not involved in the present utility model are the same as or can be implemented by using the prior art. Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A prefabricated door frame structure, characterized in that: It includes a prefabricated column and a prefabricated lintel vertically connected to the top of the prefabricated column, a plurality of longitudinal reinforcements are arranged inside the prefabricated column, a construction groove is arranged at the bottom of the prefabricated column, the top of the longitudinal reinforcement is fixedly connected with an upper connecting steel bar extending from the surface of the prefabricated column, and the bottom is fixedly connected with a lower connecting steel bar extending into the construction groove, the upper connecting steel bar passes through the prefabricated lintel and is fixedly connected to the upper adjacent prefabricated column through a first connecting sleeve, and the lower connecting steel bar is fixedly connected to the beam bottom embedded steel bar through a second connecting sleeve.

2. The prefabricated door frame structure according to claim 1, characterized in that: The ends of the prefabricated lintels are correspondingly provided with reserved holes for the upper connecting steel bars to pass through.

3. The prefabricated door frame structure according to claim 1, characterized in that: A plurality of stirrups are evenly and spaced apart inside the prefabricated column along the height direction, and the stirrups are respectively arranged around the plurality of longitudinal bars.

4. The prefabricated door frame structure according to claim 1, characterized in that: The prefabricated column is provided with reserved tooth joints on two side surfaces perpendicular to the length direction of the prefabricated lintel.

5. The prefabricated door frame structure according to claim 4, characterized in that: A tie bar is fixedly installed in at least one of the reserved tooth joints.

6. The prefabricated door frame structure according to claim 4, characterized in that: The prefabricated column is fixedly connected with a waist beam on two side surfaces perpendicular to the length direction of the prefabricated lintel, and a waist beam reserved steel bar is penetrated in the waist beam along the length direction for fixedly connecting the waist beam with the prefabricated column.

7. The prefabricated door frame structure according to claim 6, characterized in that: The waist beam is arranged on the top of the prefabricated column and is located below the prefabricated lintel.

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