Wallboard embedded column joint of underground comprehensive pipe gallery

Abstract

The utility model discloses a wallboard embedded column node of an underground comprehensive pipe gallery, which comprises wallboards and stirrups pre-embedded on the wallboards, the stirrups at adjacent node positions of the two wallboards are arranged in a high-low staggered manner, and vertical steel bars can be inserted into the stirrups for fixation; the front side and the rear side of the wallboard joint are sealed through inserting plates respectively. According to the utility model, the outer sheet inserting plate and the inner sheet inserting plate are arranged, so that the node is more rapid to mount and dismount, and the construction efficiency is greatly improved; the inner sheet inserting plates can be reused after pouring is completed, the turnover performance is high, and material waste and construction cost are reduced; the stirrups are arranged in a staggered mode, and the complex steps of traditional stirrup binding are simplified; during construction, the steel bar construction can be completed only by inserting the vertical steel bars into the embedded stirrups, so that the construction process is simplified, and the construction efficiency is further improved; the production of perforated holes is avoided, the attractiveness and the overall performance of the wall body are ensured, the durability of the wall body is improved, and the service life of the wall body is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground structure engineering, and specifically relates to a concealed column node of the wall panel of an underground utility tunnel. Background Technique

[0002] The underground utility tunnel is an important part of the modern urban infrastructure construction, mainly used for integrating various municipal pipelines, such as water supply, drainage, electricity, communication, etc., and has the advantages of optimizing space utilization and facilitating maintenance and management. In the construction of the underground utility tunnel, the design and construction of the concealed column node of the wall panel are particularly important.

[0003] Traditional underground utility tunnels usually use tie rods and wooden squares to construct the concealed column nodes between the wall panels of the tunnel. Although this method can meet the structural requirements to a certain extent, there are many deficiencies as follows:

[0004] 1. The traditional method is complex in construction, requiring a large number of tie rods and wooden squares to fix the formwork, which increases the construction steps and difficulty. During the construction process, it is necessary to accurately position and install the tie rods and ensure the stability of each part. The construction process is cumbersome, and errors are likely to occur, increasing the construction time and labor cost.

[0005] 2. The traditional method takes a long time in construction. A large amount of time is required in multiple links such as formwork installation, concrete pouring, and tie rod removal, which affects the construction progress. In addition, the removal process of the tie rods is relatively complex, further extending the construction period.

[0006] 3. Using tie rods for construction will leave through holes on the precast wall. These holes not only affect the aesthetics of the wall but may also become weak points of the structure, affecting the overall performance and durability of the wall. Content of the Utility Model

[0007] The main purpose of the utility model is to provide a concealed column node of the wall panel of an underground utility tunnel that is convenient for formwork installation and removal and has high strength.

[0008] The concealed column node of the wall panel of the underground utility tunnel provided by the utility model includes wall panels and stirrups embedded in the wall panels. The stirrups at the adjacent node positions of the two wall panels are arranged staggeredly in height and can insert vertical steel bars for fixation; the front and back sides of the wall panel node are respectively closed by inserting plates.

[0009] In one implementation manner of the above node, the wall panel is divided into an outer page and an inner page, and a groove is reserved on the side edge of the outer page of the wall panel; stirrups are embedded at fixed intervals on the side edge of the inner page of the wall panel.

[0010] In one implementation manner of the above node, the stirrup is a rectangular high-strength steel bar, and one end of it is embedded and fixed in the wall panel.

[0011] In one embodiment of the above node, a groove is reserved at the contact position of the outer pages of the two wall panels, and an outer page insertion plate is inserted into the groove to limit the two wall panels; the outer page insertion plate is a customized steel plate with the same height as the outer page of the wall panel.

[0012] In one embodiment of the above node, anchor fittings are respectively embedded in the inner pages of the two wall panels, grooves are formed on the anchor fittings, and the groove directions of the two anchor fittings are opposite.

[0013] In one embodiment of the above node, the anchor fitting is a long and thick plate with a groove on one side arranged vertically, and a set of anchoring rods are respectively arranged at fixed intervals in the height direction on the back and one side of the anchor fitting, and the end of the anchoring rod is an isosceles trapezoid.

[0014] In one embodiment of the above node, the two surfaces of the anchor fitting where the anchoring rods are arranged are attached to the inner page of the wall panel, and the two smooth surfaces face outward.

[0015] In one embodiment of the above node, the inner page insertion plate is a customized template and is inserted into the opposite grooves of the two anchor fittings.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. By setting the outer page insertion plate and the inner page insertion plate, the installation and removal process of the node is made faster, greatly improving the construction efficiency; the inner page insertion plate can be reused after pouring, with strong turnover, reducing material waste and construction costs;

[0018] 2. The stirrups are arranged in a staggered manner, simplifying the complex steps of traditional stirrup binding; during construction, only the vertical steel bars need to be inserted into the embedded stirrups to complete the steel bar construction, simplifying the construction process and further improving the construction efficiency;

[0019] 3. The generation of perforated holes is avoided, ensuring the aesthetics and overall performance of the wall, and improving the durability and service life of the wall. Description of the Drawings

[0020] Figure 1 It is an isometric structural schematic diagram of the node in an embodiment of the present utility model.

[0021] Figure 2 is Figure 1 The isometric structural schematic diagram after removing the inner page insertion plate and the embedded anchor fittings in

[0022] Figure 3 is Figure 1 The top view structural schematic diagram of

[0023] Figure 4 is Figure 1 The node structural schematic diagram of one wall panel in

[0024] Figure 5 For Figure 4 the axonometric structural schematic diagram of the embedded anchor in it. Specific embodiments

[0025] Next, the relevant technical solutions will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figure 1 shown, the concealed column node of the wall panel of this underground utility tunnel disclosed in this embodiment includes a wall panel 1, stirrups 2, outer leaf insertion plates 3, embedded anchor fittings 4 and inner leaf insertion plates 5.

[0027] The wall panel 1 can be divided into an outer leaf and an inner leaf, and a groove is reserved on the side of the outer leaf of the wall panel. Stirrups 2 are embedded at fixed intervals on the side of the inner leaf of the wall panel. The stirrups are rectangular high-strength steel bars, and one end of which is embedded and fixed in the wall panel.

[0028] As Figure 2 shown, two wall panels are placed adjacent to each other, the outer leaves of the two wall panels are in contact, and the stirrup heights of the inner leaves are arranged staggeredly.

[0029] As Figure 3 shown, due to the reserved groove at the contact position of the outer leaves of the two wall panels, the outer leaf insertion plate 3 can be inserted into the groove to limit the two wall panels. The outer leaf insertion plate is a customized steel plate, and its height is the same as that of the outer leaf of the wall panel.

[0030] As Figure 4 and Figure 5 shown, the embedded anchor fitting 4 is a long and thick plate with a groove on one side arranged vertically. At the same time, a group of anchor rods are respectively arranged at fixed intervals in the height direction on the back and one side of the embedded anchor fitting, and the end of the anchor rod is an isosceles trapezoid.

[0031] The two embedded anchor fittings 4 are respectively embedded in the inner leaves of the two wall panels. The two sides provided with the anchor rods are attached to the inner leaves of the wall panels, the two smooth sides face outwards, and at the same time the groove directions of the two embedded anchor fittings are opposite.

[0032] The inner leaf insertion plate 5 is a customized template, which can be inserted into the opposite grooves of the two embedded anchor fittings to further fix the two wall panels and at the same time limit the subsequent concrete pouring.

[0033] When pouring construction is carried out on this node:

[0034] 1. When making the wall panel, both the embedded anchor fitting and the stirrup are embedded on the wall panel.

[0035] 2. Hoist and fix two adjacent wall panels. The stirrup heights of the two wall panels are arranged staggeredly. After hoisting, insert the vertical steel bars into the stirrups to complete the steel bar construction.

[0036] 3. Insert the outer leaf insert plate at the reserved groove of the two wall panels to complete the sealing of the outer leaf direction before the concealed column is poured.

[0037] 4. Insert the inner leaf insert plate into the grooves opposite to the two embedded anchor fittings to complete the sealing of the inner leaf direction before the concealed column is poured.

[0038] 5. Pour concrete at the wall panel joints. After that, the outer leaf insert plate does not need to be removed, and the inner leaf insert plate can be removed and reused after pouring.

[0039] 6. After the inner leaf insert plate is removed, apply the wire mesh and construct the anti-cracking mortar.

[0040] The advantages of using this wall panel concealed column joint for pouring construction are as follows:

[0041] 1. Efficient construction: The design of the outer leaf insert plate and the inner leaf insert plate adopted in the present invention makes the installation and removal process of the wall panel concealed column joint simpler and faster, greatly improving the construction efficiency. The inner leaf insert plate can be reused after the concrete is poured, with strong turnover, significantly reducing material waste and construction costs.

[0042] 2. Excellent structure: The steel-made fixed formwork is adopted, which has higher stiffness and strength, ensuring the forming effect of the concrete and improving the overall quality and durability of the wall. The stable design of the outer leaf insert plate and the inner leaf insert plate enhances the structural performance of the concealed column joint and improves the overall stability of the pipe gallery.

[0043] 3. Simplified construction process: The present invention simplifies the complex steps of traditional stirrup binding by the method of staggered arrangement of stirrups. During construction, only need to insert the vertical steel bars into the embedded stirrups to complete the steel bar construction, greatly simplifying the construction process and further improving the construction efficiency.

[0044] 4. Beautiful and durable: The traditional construction method of the tie rod will leave through holes on the wall, affecting the appearance and forming structural weak points. The present invention avoids the generation of through holes, ensuring the appearance and overall performance of the wall, and improving the durability and service life of the wall.

[0045] 5. Optimized space: Through the design of the concealed column joint, the present invention improves the overall strength and stiffness of the wall panel, enhances the seismic performance and bearing capacity of the structure. At the same time, the concealed column is hidden inside the wall, not occupying the effective use space of the pipe gallery, optimizing the space layout of the pipe gallery and facilitating the layout and maintenance of various pipelines.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the foregoing embodiments have been described in detail, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wall panel hidden column node of an underground comprehensive pipe gallery, characterized in that: It includes wall panels and stirrups embedded in the wall panels. The stirrups at adjacent nodes of the two wall panels are arranged in a staggered manner and can be inserted with vertical steel bars for fixing. The front and rear sides of the wall panel nodes are closed by plug-in plates respectively.

2. The wall panel hidden column node of the underground comprehensive pipe gallery according to claim 1, characterized in that: The wall panel is divided into outer pages and inner pages. Grooves are reserved on the side edges of the outer pages of the wall panel. Stirrups are embedded at fixed intervals on the side edges of the inner pages of the wall panel.

3. The wall panel hidden column node of the underground comprehensive pipe gallery according to claim 2, characterized in that: The stirrups are rectangular high-strength steel bars, one end of which is pre-embedded and fixed in the wall panel.

4. The wall panel hidden column node of the underground comprehensive pipe gallery according to claim 2, characterized in that: A groove is reserved at the contact position of the outer pages of the two wall panels, and an outer page plug-in plate is inserted into the groove to limit the two wall panels; the outer page plug-in plate is a customized steel plate, and the height is the same as that of the outer page of the wall panel.

5. The wall panel hidden column node of the underground comprehensive pipe gallery according to claim 2, characterized in that: The inner pages of the two wall panels are respectively pre-buried with anchoring pieces, grooves are formed on the anchoring pieces, and the grooves of the two anchoring pieces are in opposite directions.

6. The wall panel hidden column node of the underground comprehensive pipe gallery according to claim 5, characterized in that: The anchor is a vertically arranged long thick plate with a groove on one side. A group of anchor rods are respectively arranged at fixed intervals on the back side and one side side of the anchor in the height direction, and the ends of the anchor rods are isosceles trapezoids.

7. The wall panel hidden column node of the underground comprehensive pipe gallery according to claim 6, characterized in that: The two sides of the anchoring member provided with the anchoring rod are in contact with the inner pages of the wallboard, and the two smooth sides face outward.

8. The wall panel hidden column node of the underground comprehensive pipe gallery according to claim 5, characterized in that: An inner page inserting plate is inserted into the grooves opposite to each other of the two anchoring pieces.

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