CN218291986U - Be used for foundation ditch lattice column and concrete support connected node structure - Google Patents

Abstract

The utility model provides a joint structure for connecting lattice columns and concrete supports in foundation pits. A top sealing plate is arranged on the top of the lattice column, and stiffening plates are uniformly arranged on the back of the top sealing plate, and the two sides of the stiffening plate are respectively connected with the top sealing plate. , The lattice column is welded, there are several anchor bars on the top sealing plate, the bottom of the anchor bar is connected with the perforated plug welding of the top sealing plate, the anchor bar extends into the concrete support and connects with the steel cage, and there are multiple loops on the anchor bar Stirrups strengthen the connection, the connection is evenly stressed, and the support is reliable. The difference from the prior art is that the lattice column does not need to be embedded in the concrete support, which is convenient for removal, and the support force obtained by the concrete support is uniform.

Description

A node structure for connecting lattice columns and concrete supports in foundation pits

technical field

The utility model relates to the field of foundation pit construction, in particular to a node structure used for connecting lattice columns and concrete supports in foundation pits.

Background technique

In foundation pit engineering, lattice columns are often used to provide vertical support for foundation pits, and reinforced concrete support beams are used as horizontal supports for foundation pits. At the junction of concrete supports and lattice columns, lattice columns are embedded in concrete supports. After the pit construction is completed, it is troublesome to remove the lattice columns embedded in the concrete support, and the support force obtained by the concrete support is uneven, which affects the construction quality.

Utility model content

The purpose of the utility model is to provide a connection node structure for foundation pit lattice columns and concrete supports aiming at solving the problems in the prior art.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a joint structure for the connection between the lattice column and the concrete support of the foundation pit, including the lattice column and the concrete support connected to the top of the lattice column; The column includes angle steel vertically arranged on the four end corners of the column body, and a panel connecting the adjacent angle steel, and the angle steel and the panel are welded and fixed; the top surface of the lattice column is welded with The top sealing plate, the four sides of the top sealing plate cover the top surface of the lattice column, and the back of the four sides of the top sealing plate are connected by stiffening plates; the concrete support fits the top sealing plate For pouring, a number of anchor bars are evenly arranged vertically above the top seal plate, the bottom ends of the anchor bars are welded and fixed to the top seal plate, and the anchor bars extend into the concrete support and the concrete support The reinforcement cage is welded, and multiple circles of stirrups are arranged around several vertically arranged anchor bars, and the stirrups are connected with the anchor bars.

The beneficial effect of the utility model is: a top sealing plate is arranged on the top of the lattice column, and a stiffening plate is evenly arranged on the back of the top sealing plate, and the two sides of the stiffening plate are respectively welded with the top sealing plate and the lattice column, and on the top sealing plate There are several anchor bars, the bottom of the anchor bar is connected with the perforated plug welding of the top sealing plate, the anchor bar extends into the concrete support and connects with the steel cage, and there are multiple circles of stirrups on the anchor bar to strengthen the connection, the connection force is even, and the support It is reliable, and the difference from the prior art lies in that the lattice column does not need to be embedded in the concrete support, it is convenient to remove, and the support force obtained by the concrete support is uniform.

Further, the stiffening plate is a polygonal steel plate, the stiffening plate includes two right-angled sides, one right-angled side of the stiffening plate is welded and fixed to the top sealing plate, and the other right-angled side of the stiffening plate is welded to the angle steel of the lattice column Fixed, 12-16 pieces of the stiffening plate are arranged around the lattice column.

Further, the panels are evenly arranged along the height direction of the angle steel, and the interval between adjacent panels is 800 mm.

Further, the anchor bar is connected to the top sealing plate through plug welding.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the accompanying drawings that need to be used in the embodiments or the description of the prior art. Obviously, the accompanying drawings in the following description are only for the utility model For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

Fig. 1 is a schematic cross-sectional view of a connection node between a lattice column and a roof sealing plate in an embodiment of the utility model.

Fig. 2 is a schematic cross-sectional view of a connection between a lattice column and a concrete support in an embodiment of the utility model.

Among them: 1 is the lattice column, 11 is the panel, 12 is the angle steel, 2 is the concrete support, 3 is the top sealing plate, 4 is the stiffening plate, 5 is the anchor bar, and 6 is the stirrup.

detailed description

Embodiments of the utility model are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, intended to explain the embodiments of the utility model, and should not be construed as limitations of the utility model.

In the description of the utility model embodiment, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical ", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model embodiment and simplifying the Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the utility model embodiments, "plurality" means two or more, unless otherwise specifically defined.

In the embodiments of the utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a fixed connection. Disassembled connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the utility model according to specific situations.

In conjunction with the accompanying drawings, the utility model is described in further detail.

An embodiment of the utility model, as shown in Fig. 1-Fig. 2, is a kind of node structure used for connecting the lattice column and the concrete support of the foundation pit, including the lattice column 1, the concrete support connected on the top of the lattice column 1 2. Specifically, the concrete support 2 is a reinforced concrete support beam for the foundation pit; the lattice column 1 includes angle steels 12 arranged vertically on the four end corners of the column body, and a patch plate 11 connecting adjacent angle steels 12 , the angle steel 12 and the trim plate 11 are fixed by welding; the top sealing plate 3 is welded on the top surface of the lattice column 1, specifically, the specification of the top sealing plate 3 is 700×700×20mm, which is worth explaining What is more, the top sealing plate 3 can be installed directly after the stiffening plate 4 is welded in the process of welding with the lattice column 1, and the four sides of the top sealing plate 3 have covered the lattice structure. On the top surface of the column 1, it is worth noting that the width of the four sides beyond the lattice column 1 is equal, and the back of the four sides of the top sealing plate 3 is connected by a stiffening plate 4. Specifically, the thickness of the stiffening plate 4 is 14 mm. There are 12 stiffening plates 4 arranged around the lattice column 1; the concrete support 2 is poured with the top seal plate 3, and several anchor bars 5 are evenly arranged vertically above the top seal plate 3. Specifically, the anchor bars 5 are placed in the The top sealing plate 3 is provided with 25 pieces, which are arranged in a 5×5 arrangement. The length of the anchor bars 5 is 600 mm, and the diameter of the anchor bars 5 is 25 mm. The bottom ends of the anchor bars 5 are welded to the top sealing plate 3 fixed, the anchor bars 5 protrude into the concrete support 2 and are welded with the reinforcement cage in the concrete support 2, and two circles of stirrups 6 are arranged around several vertically arranged anchor bars 5, specifically , the diameter and length of the stirrup 6 is 25mm. It can be understood that the stirrup 6 is arranged in 2 turns in this embodiment, it can also be 1 turn or 3 turns, or even more, depending on the specific construction situation. The stirrups 6 are connected to the anchor bars 5. Specifically, the stirrups 6 and the anchor bars 5 can be fixed by welding or binding.

During specific implementation, the stiffening plate 4 is a hexagonal steel plate. It can be understood that it is a hexagonal steel plate in this embodiment. In other embodiments, it can also be a pentagonal, heptagonal, etc., according to Depending on the actual construction situation, the stiffening plate 4 includes two right-angled sides, one right-angled side of the stiffening plate 4 is welded and fixed to the top sealing plate, and the other right-angled side of the stiffening plate 4 is connected to the angle steel 12 of the lattice column 1 Welding fixed.

During specific implementation, the panel 11 is evenly arranged along the height direction of the angle steel 12, and the interval between adjacent panels 11 is 800mm. The specification of the panel 11 is 400×300×12mm, and the specification of the angle steel 12 is 200× 20mm.

During specific implementation, the anchor bar 5 is connected with the top sealing plate 3 by perforation plug welding.

The beneficial effect of the utility model is: a top sealing plate 3 is arranged on the top of the lattice column 1, and a stiffening plate 4 is evenly arranged on the back of the top sealing plate 3, and the two sides of the stiffening plate 4 are connected with the top sealing plate 3 and the lattice column 1 respectively. Welding, a number of anchor bars 5 are arranged on the top seal plate 3, the bottom of the anchor bar 5 is connected with the perforated plug welding of the top seal plate 3, the anchor bars 5 extend into the concrete support 2 and are connected with the reinforcement cage, and the anchor bars 5 are provided with The multi-circle stirrup 6 strengthens the connection, the connection is evenly stressed, and the support is reliable. The difference from the prior art is that the lattice column 1 does not need to be embedded in the concrete support 2, which is convenient for removal, and the support force obtained by the concrete support 2 is uniform.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of a utility model patent should be determined by the appended claims.

Claims (4)

1. A connection node structure for a foundation pit lattice column and a concrete support, characterized in that it comprises a lattice column, a concrete support connected to the top of the lattice column; the lattice column includes four ends of the column Angle steel vertically arranged on the corner, connecting the trim plate between adjacent angle steels, the angle steel and the trim plate are welded and fixed; the top surface of the lattice column is welded with a top sealing plate, and the top The four sides of the sealing plate cover the top surface of the lattice column, and a stiffening plate is provided on the back of the four sides of the top sealing plate to connect; the concrete support is poured on the top sealing plate, and the top sealing plate A number of anchor bars are evenly arranged vertically above, and the bottom ends of the anchor bars are welded and fixed to the top sealing plate. The anchor bars extend into the concrete support and are welded with the steel cage in the concrete support. A plurality of circles of stirrups are arranged around the vertically arranged anchor bars, and the stirrups are connected with the anchor bars. 2. The joint structure for foundation pit lattice columns and concrete supports according to claim 1, wherein the stiffening plate is a polygonal steel plate, the stiffening plate includes two right-angled sides, and one stiffening plate The right-angled side is welded and fixed to the top sealing plate, the other right-angled side of the stiffening plate is welded and fixed to the angle steel of the lattice column, and 12-16 pieces of the stiffening plate are arranged around the lattice column. 3. The node structure for connecting the lattice column of the foundation pit and the concrete support according to claim 1, characterized in that, the patch panels are evenly arranged along the height direction of the angle steel, and the interval between adjacent patch panels is 600mm -800mm. 4 . The node structure for connecting lattice columns and concrete supports in foundation pits according to claim 1 , wherein the anchor bars are plug-welded through holes in the top sealing plate. 5 .

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