Up-down split type prefabricated comprehensive pipe rack section

Abstract

The utility model discloses an up-down split type prefabricated comprehensive pipe gallery segment which comprises a lower base plate and an upper component arranged on the lower base plate, the cross section of the upper component is of an n-shaped structure, and the upper component comprises a top plate and a side wall. The lower base plate is provided with a bottom plate connecting clamping groove used for being connected and matched with the bottom of the side wall in an embedded mode, top plate trapezoid haunches are arranged at the ends of the two transverse sides of the top plate in the longitudinal direction, and side wall trapezoid haunches are arranged at the positions, close to the connecting position of the bottom of the side wall and the lower base plate, of the bottom of the side wall in the longitudinal direction. According to the upper and lower split type prefabricated comprehensive pipe rack section, a reasonable prefabricated assembly mode is designed for the prefabricated comprehensive pipe rack section, so that the section size and the quality of a single prefabricated part are effectively controlled, the requirement for cabin and pipeline arrangement is met, and meanwhile the structure is easy to manufacture and convenient to construct and install.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, and particularly relates to an upper and lower split precast integrated pipe gallery segment. Background Art

[0002] An integrated pipe gallery refers to a tunnel space built underground in a city, integrating various pipelines such as municipal, electric power, communication, and drainage. It is equipped with special inspection openings, hoisting openings, and monitoring systems, and implements unified planning, unified design, unified construction, and unified management.

[0003] Integrated pipe galleries can be divided into two categories: cast-in-situ integrated pipe galleries and precast integrated pipe galleries. Compared with cast-in-situ integrated pipe galleries, precast integrated pipe galleries have the characteristics of short construction period, easy quality control, and significant comprehensive economic benefits. The assembly method of precast integrated pipe galleries has a great influence on structural safety and construction convenience. Common precast integrated pipe galleries can be divided into various forms such as integral cabin precast assembly, precast trough-shaped assembly, laminated slab assembly, and precast slab assembly. Prestressing tendons are usually used to connect between pipe gallery segments. In the prior art, prestressing tendon anchoring holes for anchoring prestressing tendons are usually arranged inside the pipe gallery segments. However, during subsequent construction, excess water easily seeps into the prestressing tendon reserved holes from the prestressing tendon anchoring holes, thereby affecting the tensioning effect of the prestressing tendons.

[0004] Therefore, it is necessary to improve the existing precast integrated pipe gallery structure so that the precast integrated pipe gallery segments can effectively control the cross-sectional dimensions and quality of individual precast components through a reasonable precast assembly method, meet the needs of cabin and pipeline layout, and at the same time, the structure is simple to manufacture and convenient for construction and installation. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to overcome the defects in the prior art. By designing a reasonable precast assembly method for precast integrated pipe gallery segments, the cross-sectional dimensions and quality of individual precast components can be effectively controlled to meet the needs of cabin and pipeline layout, and at the same time, the structure is simple to manufacture and convenient for construction and installation.

[0006] A provided upper and lower split precast integrated pipe gallery segment of the utility model includes a lower base plate and an upper component arranged on the lower base plate. The cross-section of the upper component is in a portal-shaped structure and includes a top plate and side walls. A bottom plate connection card slot for embedding and connecting with the bottom of the side walls is arranged on the lower base plate. Top plate trapezoidal haunches are arranged longitudinally at the ends on both lateral sides of the top plate, and side wall trapezoidal haunches are arranged longitudinally at positions of the side wall bottoms close to the connection with the lower base plate.

[0007] Furthermore, the top plate trapezoidal haunches are formed by protruding outward from the upper surface of the top plate, and the side wall trapezoidal haunches are arranged on the outer side surface of the side wall and are formed by protruding outward from the outer side surface of the side wall.

[0008] Furthermore, both transverse ends of the lower base plate, the trapezoidal armpit of the top plate and the trapezoidal armpit of the side wall are provided with prestressed tendon reserved holes at both longitudinal ends, and prestressed tendon anchor holes are provided between the prestressed tendon reserved holes and the outer side surface of the upper component or the outer side surface of the lower base plate.

[0009] Furthermore, the cross-section of the prestressed tendon reserved channel is circular and prestressed tendons are penetrated inside, and adjacent tunnel segments are connected by prestressed tendons that penetrate the prestressed tendon reserved channels of the two segments.

[0010] Furthermore, the cross-section of the prestressed tendon anchor hole is an isosceles trapezoidal structure and is connected to the prestressed tendon reserved channel. The prestressed tendon anchor hole is used to provide a working space to prestress the prestressed tendon in the prestressed tendon reserved channel.

[0011] Furthermore, the upper surface of the top plate is pre-embedded with hanging bolts between the trapezoidal haunches of the top plate.

[0012] Furthermore, the cross section of the bottom plate connection slot is an isosceles trapezoidal structure, and the bottom of the side wall of the upper component is inserted into the bottom plate connection slot of the lower base plate and grouted in the bottom plate connection slot to form a whole.

[0013] Furthermore, the lower base plate is locally thickened near the bottom plate connection slot.

[0014] The beneficial effects of the utility model are as follows: the upper and lower split prefabricated integrated pipe gallery segments of the utility model, by designing a reasonable prefabrication and assembly method for the prefabricated integrated pipe gallery segments, can effectively control the cross-sectional size and quality of individual prefabricated components to meet the needs of cabin and pipeline layout. At the same time, the structure is simple to manufacture and convenient to construct and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the structure of the utility model

[0017] Figure 2 This is a cross-sectional view of the prefabricated upper member of the utility model

[0018] Figure 3 This is a cross-sectional view of the bottom plate of the utility model

[0019] In the figure, 1-upper component, 1a-top plate, 1b-side wall, 2-lower base plate, 2a-bottom plate connecting slot; 3-prestressed tendon anchor hole, 4-prestressed tendon reserved channel, 5-bolt. DETAILED DESCRIPTION

[0020] As shown in the figure, the utility model provides an upper and lower split prefabricated integrated pipe gallery segment, including a lower base plate 2 and an upper component 1 arranged on the lower base plate 2, the cross-section of the upper component 1 is a gate-shaped structure and includes a top plate 1a and a side wall 1b, the lower base plate 2 is provided with a bottom plate connecting groove 2a for embedding and connecting with the bottom of the side wall, the top plate 1a is provided with a top plate trapezoidal arm at the ends on both sides of the lateral direction along the longitudinal direction, and the bottom of the side wall 1b is provided with a side wall trapezoidal arm at a position close to the connection with the lower base plate 2 along the longitudinal direction; wherein the connection between the upper component 1 and the lower base plate 2 is mainly achieved by embedding the bottom of the side wall of the upper component 1 into the lower base plate After the bottom plate on 2 is connected to the slot 2a, high-strength grouting material is used to form an overall structure; and the top plate 1a of the upper member 1 is provided with a top plate trapezoidal arm at both ends in the longitudinal direction (i.e., the connection direction between several pipe gallery segments, the same below), and the bottom of the side wall 1b of the upper member 1 is provided with a side wall trapezoidal arm at a position close to the connection with the lower base plate 2 in the longitudinal direction, and prestressed tendons are respectively provided on the top plate trapezoidal arm, the side wall trapezoidal arm and the lower base plate 2; by designing the pipe gallery segment as an upper and lower split structure, the cross-sectional size and mass of a single pipe gallery segment can be controlled to meet the needs of cabin and pipeline layout, making it more convenient to transfer during transportation and hoist during construction.

[0021] In this embodiment, the trapezoidal armpit of the top plate is formed by the upper surface of the top plate bulging outward, and the trapezoidal armpit of the side wall is arranged on the outer side surface of the side wall and is formed by the outer surface of the side wall 1b bulging outward; the two lateral ends of the lower base plate 2, the trapezoidal armpit of the top plate and the trapezoidal armpit of the side wall are provided with prestressed tendon reserved channels 4 at both ends in the longitudinal direction, and prestressed tendon anchor holes 3 are provided between the prestressed tendon reserved channels 4 and the outer side surface of the upper component 1 or the outer side surface of the lower base plate 2; by arranging the prestressed tendon anchor holes 3 for anchoring the prestressed tendons outside the corridor segment, it is possible to effectively avoid the water inside the corridor segment from infiltrating into the prestressed tendon reserved channels 4 during construction, thereby affecting the tensioning effect of the prestressed tendons.

[0022] In this embodiment, the cross-section of the prestressed tendon reserved channel 4 is circular and prestressed tendons are penetrated inside. Adjacent pipe gallery segments are connected by prestressed tendons that penetrate the prestressed tendon reserved channels 4 of the two. The prestressed tendons are mainly made of fine-rolled threaded steel bars. When adjacent pipe gallery segments are spliced, fine-rolled threaded steel bars are used to penetrate the prestressed tendon reserved channels 4 at adjacent ends of the two, and then the two ends of the fine-rolled threaded steel bars are anchored and locked, and finally the splicing of adjacent pipe gallery segments is achieved.

[0023] In this embodiment, the cross-section of the prestressed tendon anchoring hole 3 is of an isosceles trapezoid structure and is communicated with the prestressed tendon reserved duct 4. The prestressed tendon anchoring hole 3 is used to provide an operation space for prestress locking of the prestressed tendon in the prestressed tendon reserved duct 4; combined with Figure 1 As shown, the prestressed tendon anchoring holes 3 in this solution are respectively opened on the outer sides of the trapezoidal haunch of the top plate, the trapezoidal haunch of the side wall and the lower base plate 2, mainly used to provide an operation space for the anchoring of the high-strength deformed bar, facilitating subsequent workers to perform prestress locking on the high-strength deformed bar in the prestressed tendon anchoring hole 3; among them, the cross-section of the prestressed tendon anchoring hole 3 is of an isosceles trapezoid structure and is communicated with the prestressed tendon reserved duct 4.

[0024] In this embodiment, stud bolts 5 for hoisting are embedded in the upper surface of the top plate 1a between the trapezoidal haunches of the top plate; combined with Figure 1 and Figure 2 As shown, during the precast stage, stud bolts 5 are embedded in advance on the upper surface of the top plate 1a to facilitate the overall hoisting and transfer of the upper components during the subsequent assembly process.

[0025] In this embodiment, the cross-section of the bottom plate connection slot 2a is of an isosceles trapezoid structure. After the bottom of the side wall of the upper component 1 is inserted into the bottom plate connection slot 2a of the lower base plate 2, grouting is carried out in the bottom plate connection slot to form an integral body; among them, after the bottom of the side wall of the upper component 1 is embedded in the bottom plate connection slot 2a of the lower base plate 2, high-strength grouting material is mainly used for grouting in the bottom plate connection slot 2a.

[0026] In this embodiment, the lower base plate 2 is locally thickened near the bottom plate connection slot 2a; combined with Figure 1 and Figure 3 As shown, since this solution adopts an upper and lower split embedded connection, a bottom plate connection slot 2a is opened on the lower base plate 2. In order to ensure the structural strength of the lower base plate 2, local thickening treatment needs to be carried out near the bottom plate connection slot 2a.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An upper and lower split precast integrated pipe gallery segment, characterized in that: It includes a lower base plate and an upper component arranged on the lower base plate, the cross-section of the upper component is a gate-shaped structure and includes a top plate and a side wall, the lower base plate is provided with a bottom plate connecting groove for embedding and connecting with the bottom of the side wall, the top plate is provided with a top plate trapezoidal arm at the ends on both sides of the lateral direction along the longitudinal direction, and the bottom of the side wall is provided with a side wall trapezoidal arm along the longitudinal direction at a position close to the connection with the lower base plate.

2. The upper and lower split prefabricated integrated pipe gallery segment according to claim 1, wherein: The top plate trapezoidal arm is formed by the upper surface of the top plate protruding outwards, and the side wall trapezoidal arm is arranged on the outer side of the side wall and is formed by the outer surface of the side wall protruding outwards.

3. The upper and lower split precast integrated pipe gallery segment according to claim 2, characterized in that: Prestressed tendon reserved channels are arranged at the two transverse ends of the lower base plate, the trapezoidal armpit of the top plate and the trapezoidal armpit of the side wall at both ends in the longitudinal direction, and prestressed tendon anchor holes are arranged between the prestressed tendon reserved channels and the outer side surface of the upper component or the outer side surface of the lower base plate.

4. The upper and lower split prefabricated integrated pipe gallery segment according to claim 3, characterized in that: The cross-section of the prestressed tendon reserved channel is circular and prestressed tendons are penetrated inside. Adjacent pipe gallery segments are connected by prestressed tendons that penetrate the prestressed tendon reserved channels of the two segments.

5. The upper and lower split prefabricated integrated pipe gallery segment according to claim 3, characterized in that: The cross-section of the prestressed tendon anchor hole is an isosceles trapezoidal structure and is connected to the prestressed tendon reserved channel. The prestressed tendon anchor hole is used to provide a working space to prestress the prestressed tendon in the prestressed tendon reserved channel.

6. The upper and lower split prefabricated integrated pipe gallery segment according to claim 1, characterized in that: The upper surface of the top plate is pre-embedded with hanging bolts between the trapezoidal haunches of the top plate.

7. The upper and lower split precast integrated pipe gallery segment according to claim 1, wherein: The cross section of the bottom plate connection slot is an isosceles trapezoidal structure, and the bottom of the side wall of the upper component is inserted into the bottom plate connection slot of the lower base plate and grouted in the bottom plate connection slot to form a whole.

8. The upper and lower split prefabricated integrated pipe gallery segment according to claim 7, characterized in that: The lower base plate is locally thickened near the bottom plate connection slot.

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