A mounting structure of a precast ring beam

Abstract

The utility model discloses a mounting structure of prefabricated ring frame beam, is spliced by one prefabricated upper beam, two prefabricated middle beams, two prefabricated lower columns and two cast-in-situ concrete piers, and the whole is symmetrical left and right, the cross section size of prefabricated upper beam, two prefabricated middle beams, two prefabricated lower columns is identical, and the cross section of cast-in-situ concrete pier is larger than the cross section of prefabricated upper beam, one end of every splicing position is embedded with I -steel plug, the other end is provided with the recess for I -steel plug insertion, and is provided with the pouring hole that communicates with the recess in one end with recess, and prefabricated upper beam, prefabricated middle beam are provided with the pipe shed hole that passes through in front and back at equidistance interval. The utility model discloses, has simplified the construction process, has improved the efficiency, has reduced the construction difficulty significantly, and is easy to implement.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated ring frame beam technology, and in particular to an installation structure for a prefabricated ring frame beam. Background Technology

[0002] A ring beam needs to be installed at the tunnel entrance, and the existing ring beam needs to be cast on-site with concrete. Before casting, it is necessary to manually erect scaffolding, set up formwork, pour concrete, dismantle formwork and scaffolding, and cure the concrete. The process is complex, time-consuming, and inefficient. The quality of the project is unstable during the manual formwork erection and concrete pouring process, which requires high technical skills. The construction involves working at heights, posing safety hazards. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention aims to provide an installation structure for a prefabricated ring frame beam to solve the problems of complex procedures, low efficiency and high safety risks.

[0004] To achieve the above objectives, this utility model proposes an installation structure for a precast ring frame beam, which is spliced ​​together from a precast upper beam, two precast middle beams, two precast lower columns, and two cast-in-place concrete piers. The structure is symmetrical from left to right. The cross-sectional dimensions of the precast upper beam, the two precast middle beams, and the two precast lower columns are the same, while the cross-sectional dimension of the cast-in-place concrete piers is larger than that of the precast upper beam. An I-beam plug is pre-embedded at one end of each splicing position, and a groove for inserting the I-beam plug is provided at the other end. A pouring hole communicating with the groove is provided at the end with the groove. Pipe roof holes that run through the front and back are provided at equal intervals on the precast upper beam and the precast middle beam.

[0005] As a preferred embodiment of the above scheme, each splicing position is provided with two insertion points consisting of an I-beam plug and a groove, spaced apart on the left and right.

[0006] Further preferably, the pouring hole at the insertion position can connect two grooves simultaneously, and the pouring hole is a through hole running horizontally.

[0007] In a further preferred embodiment, one of the flanges of the I-beam plug is embedded in the precast component, while the other flange protrudes from the precast component and is inserted into a groove in another precast component.

[0008] The beneficial effects of this utility model are as follows: The precast upper beam, precast middle beam, precast lower column, and cast-in-place concrete pier are spliced ​​together by I-beams, and the groove is provided with a pouring port, which simplifies the construction process, shortens the project time, improves efficiency, significantly reduces the construction difficulty, and is easy to implement; The cross-sectional dimensions of the precast upper beam, the two precast middle beams, and the two precast lower columns are consistent, ensuring that the three can be successfully spliced ​​together; The cross-sectional area of ​​the cast-in-place concrete pier is larger than that of the precast upper beam, which increases the stability of the overall structure and improves the project quality. Attached Figure Description

[0009] Figure 1 This is a structural diagram of the completed installation of this utility model.

[0010] Figure 2 This is the first splicing method using I-beams.

[0011] Figure 3 This is the second splicing method using I-beams. Detailed Implementation

[0012] like Figure 1 — Figure 3 As shown, an installation structure for a precast ring frame beam is assembled from a precast upper beam 1, two precast middle beams 2, two precast lower columns 3, and two cast-in-place concrete piers 7. The structure is symmetrical from left to right. The cross-sectional dimensions of the precast upper beam 1, the two precast middle beams 2, and the two precast lower columns 3 are the same, and the cross-sectional dimension of the cast-in-place concrete piers 7 is larger than that of the precast upper beam 1.

[0013] Two I-beam plugs 4, spaced apart on the left and right, are pre-embedded at one end of each splicing position. The other end is provided with a groove for inserting the I-beam plugs 4, and a pouring hole 5 communicating with the groove is provided at the end with the groove. The pouring hole 5 at the splicing position is open on both sides and can connect the two grooves at the same time. When the I-beam plugs 4 under the precast component are inserted into the bottom of the corresponding groove, concrete is poured from the pouring hole 5 at the splicing position. When the concrete overflows from the end of the splicing position, the pouring stops.

[0014] There are two types of interlocking methods for I-beams. Figure 3 Compared to the method shown Figure 2 For greater stability, one option is to embed one flange of the I-beam connector 4 within the precast component, while the other flange protrudes from the precast component and is inserted into a groove in another precast component. Alternatively, both ends of the flanges of the I-beam connector 4 can be embedded within the precast component, with the other end protruding from the precast component and inserted into a groove in another precast component. The flow direction of the concrete during pouring is shown by the arrow in the figure.

[0015] The precast upper beam 1 and the precast middle beam 2 are provided with pipe roof holes that run through the front and back at equal intervals, which are used to install pipe roofs on the ring frame beam.

Claims

1. An installation structure for a precast ring frame beam, characterized in that: It is assembled from a precast upper beam (1), two precast middle beams (2), two precast lower columns (3) and two cast-in-place concrete piers (7), and is symmetrical from left to right. The cross-sectional dimensions of the precast upper beam (1), two precast middle beams (2) and two precast lower columns (3) are the same, and the cross-sectional dimension of the cast-in-place concrete piers (7) is larger than that of the precast upper beam (1). One end of each splicing position is pre-embedded with an I-beam plug (4), and the other end is provided with a groove for inserting the I-beam plug (4). A pouring hole (5) communicating with the groove is provided at the end with the groove. Pipe roof holes (6) that run through the front and back are provided at equal intervals on the precast upper beam (1) and precast middle beams (2).

2. The installation structure of a prefabricated ring frame beam according to claim 1, characterized in that: At each splicing position, there are two insertion points on the left and right sides, consisting of an I-beam plug (4) and a groove.

3. The installation structure of a precast ring frame beam according to claim 2, characterized in that: The pouring hole (5) at the insertion position can connect two grooves at the same time, and the pouring hole (5) is a through hole in the left and right.

4. The installation structure of a precast ring frame beam according to claim 2, characterized in that: One of the flanges of the I-beam plug (4) is embedded in the precast component, and the other flange is exposed outside the precast component and inserted into the groove of another precast component.

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