CN204401628U - Large-span steel supports multidirectional connector - Google Patents

Abstract

The utility model discloses a kind of large-span steel and support multidirectional connector, it comprises steel cylinder, joint and rod member, described joint is arc, the middle part of described joint is welded with rod member, described joint both sides have at least three radially-arranged first bolts hole, the surrounding of described steel cylinder is provided with at least one group of second bolt hole corresponding with the first bolt hole, and the surrounding of described steel cylinder is connected by bolt is at least vertical with joint, and described steel cylinder is enclosed within steel post.The utility model can realize multi-direction, multi-angle and regulate Distance geometry height between rod member, the size of specification connector, make to exchange between all parts and general, urban district large-span deep foundation pit and irregular deep foundation ditch can be applied to, thus raising technology, make foundation pit support construction more simple, quick.

Description

Multi-directional connectors for long-span steel supports

technical field

The utility model relates to the technical field of geotechnical engineering, in particular to a large-span steel support multidirectional connector.

Background technique

In foundation pit support, steel support has been widely used because of its fast construction speed, convenient use, and excellent seismic performance. However, most steel support structures need to be prestressed and cannot be used for large areas and large spans, and the single direction also makes the design unable to achieve the most effective structural form in irregular foundation pit support. Although the traditional reinforced concrete support can have a scientific structural form, the construction progress is slow and cannot be dug and supported, and it cannot be reused, which not only wastes materials but also brings great difficulties to the project in demolition. The connection methods of the traditional steel support structure include: riveting, welding, flange, etc., because the steel support structure currently used mainly uses a single section steel or steel pipe as the support beam, and each section steel or steel pipe cannot be connected at any angle Therefore, it is often impossible to use as a composite structure, and the steel support formed in this way can bear limited force, which limits the scope of use, especially for foundation pits with large spans.

Contents of the invention

The purpose of this utility model is to provide a long-span steel support multi-directional connector, which can adjust the distance and height between the rods in multiple directions and angles during the construction process according to the design requirements, and standardize the size of the connector, so that The components are interchangeable and common, ensuring the quality of construction. It is easier to operate for traditional reinforced concrete supports, saves time and effort, improves construction efficiency and can be reused; it is more scientific for the force of existing steel supports, and can be applied to different Regular and large-area foundation pit support.

In order to achieve this purpose, a multi-directional connector for large-span steel support designed by the utility model is characterized in that it includes a steel cylinder, a joint and a rod, the joint is arc-shaped, and the middle part of the joint is in contact with the rod For welding, at least three radially distributed first bolt holes are respectively opened on both sides of the joint, and at least one group of second bolt holes corresponding to the first bolt holes is provided around the steel cylinder, and the steel cylinder The periphery of the cylinder is vertically connected with at least one joint through bolts, and the steel cylinder is sleeved on the column.

Further, the first bolt holes and the second bolt holes are arranged in a zigzag shape.

Further, the steel cylinder and the joint have the same radius.

Further, the rod is a cylindrical steel pipe.

Furthermore, the steel cylinder is vertically connected with 2 to 8 rods.

Beneficial effects of the utility model: by using the arc joint and the steel cylinder passing through the column, the distance and height between the rods can be adjusted in multiple directions and angles, and the size of the connecting parts can be standardized, so that the various parts can be interchanged And general, and concrete is poured between the steel cylinder and the column to realize the connection of the steel cylinder and the column. It can be applied to large-span deep foundation pits and irregular deep foundation pits in urban areas, thereby improving process technology and making foundation pit support construction simpler and faster.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the utility model use state;

Fig. 3 is the connection schematic diagram of the utility model;

Fig. 4 is the structural representation of joint;

Among them: 1—steel cylinder, 2—joint, 3—rod, 4—first bolt hole, 5—second bolt hole, 6—steel column.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

A long-span steel support multidirectional connector as shown in Figure 1-4, including a steel cylinder 1, a joint 2 and a rod 3, the joint 2 is arc-shaped, and the middle part of the joint 2 is welded to the rod 3 There are at least three radially distributed first bolt holes 4 on both sides of the joint 2, and at least one set of second bolt holes 5 corresponding to the first bolt holes 4 are arranged around the steel cylinder 1, The periphery of the steel cylinder 1 is vertically connected with at least one joint 2 through bolts, and the steel cylinder 1 is sleeved on the column 6 . During the excavation of the foundation pit, multiple arc-shaped joints 1 of different angles are connected to the steel cylinder 2 passing through the column to realize the multi-directional and multi-angle connection of the rods 3, and concrete is poured in the steel cylinder 2 to form Reliable structure of concrete filled steel tube. A plurality of steel cylinders 1 can be placed on the column to realize the multi-layer support of deep foundation pits, which is applied to large-span deep foundation pits and irregular deep foundation pits in urban areas, improves the process technology, and makes the foundation pit support construction simpler and faster .

In the above solution, the first bolt holes 4 and the second bolt holes 5 are arranged in a zigzag shape. Install the bolts according to different support types. When installing the bolts, thread them from the inside to the outside, so that the bolt caps face outward, then pour concrete in the steel cylinder 1, remove the connecting piece after the support is completed, unscrew the bolts outside the steel cylinder 1, and remove The head of the connecting piece is discarded and other parts are discarded to complete the support.

In the above solution, the steel cylinder 1 and the joint 2 have the same radius, so that the joint 2 and the steel cylinder 1 can fit closely.

In the above solution, the rod is a cylindrical steel pipe.

In the above solution, the steel cylinder is vertically connected with 2 to 8 rods, so that the distance and height between the rods can be adjusted in multiple directions and angles.

The above is only a specific embodiment of the present utility model. It should be pointed out that any changes or replacements that can be easily imagined by those skilled in the art within the technical scope disclosed in the present utility model should be covered by the present utility model. within the scope of protection.

Claims (5)

1. A long-span steel support multidirectional connector, characterized in that: it comprises a steel cylinder (1), a joint (2) and a rod (3), the joint (2) is arc-shaped, and the joint (2) ) is welded to the rod (3), at least three radially distributed first bolt holes (4) are opened on both sides of the joint (2), and at least one A group of second bolt holes (5) corresponding to the first bolt holes (4), the periphery of the steel cylinder (1) is vertically connected with at least one joint (2) by bolts, and the steel cylinder (1) is sleeved on on the steel column (6). 2. A long-span steel support multidirectional connector according to claim 1, characterized in that: the first bolt holes (4) and the second bolt holes (5) are arranged in a zigzag shape. 3. A long-span steel support multidirectional connector according to claim 1, characterized in that: the steel cylinder (1) and the joint (2) have the same radius. 4. A long-span steel support multidirectional connector according to claim 1, characterized in that: the rod (3) is a cylindrical steel pipe. 5. The multidirectional connector for long-span steel supports according to claim 1, characterized in that: the steel cylinder (1) is vertically connected with 2 to 8 rods (3).