CN218880881U

CN218880881U - Steel supporting structure

Info

Publication number: CN218880881U
Application number: CN202223307474.XU
Authority: CN
Inventors: 程杰; 司政麒; 殷帅杰; 罗向东; 韩磊
Original assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Current assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-04-18
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a steel supporting structure, which comprises a plurality of enclosing purlins and a pair of supports, wherein the enclosing purlins and the pair of supports are both H-shaped steel, the H-shaped steel web plate at the joint of the enclosing purlins and the pair of supports is provided with a first bolt hole, and the enclosing purlins and the pair of supports are assembled and connected by adopting a connecting joint and a double-plate; the connecting joint is formed by combining an H-shaped steel joint and two connecting plates, and the two connecting plates are respectively fixedly arranged on two sides of a web plate of the H-shaped steel joint and are perpendicular to the web plate and a flange of the H-shaped steel joint; a second bolt hole is formed in the connecting plate; the double plates are square steel plates, and third bolt holes are formed in the double plates; the connecting joints are arranged between the surrounding purlin joints and/or the opposite supporting joints, the double plates are arranged at the joints, and the third bolt holes are respectively overlapped with the first bolt holes and the second bolt holes and fixedly connected through bolts. The utility model discloses construction convenience, and the quality is controllable, and for welded connection, the security is higher, and can reuse.

Description

Steel supporting structure

Technical Field

The utility model relates to a building technical field, concretely relates to steel bearing structure for foundation ditch construction.

Background

With the vigorous development of underground building construction in China, the development and utilization of underground space are increasingly prosperous. The utilization of underground space is more urgent due to the continuous rise of land price, and the investment amount of single project is gradually increased. The traditional deep foundation pit supporting inner support is in a reinforced concrete form, the inner support structure is long in construction period, concrete curing time is long, the polluted environment is removed in the later period, and meanwhile, the manufacturing cost is high. Therefore, a supporting structure and a construction method which are high in installation and removal construction speed, green, environment-friendly and low in manufacturing cost are urgently needed in foundation pit supporting engineering.

CN201620345831.7 discloses a truss-like combination shaped steel supporting beam, provides a combination shaped steel support that not only can guarantee steel supporting beam structural strength and stability, effectively prevents that steel supporting beam from taking place to warp in practical application, and reducible shaped steel quantity and reduce cost. The scheme has the following defects: 1. the section steel truss is connected by arranging the oblique web members, and the oblique web members are arranged in a crossed manner to form a shear-type movable end, so that the stability is poor; 2. in the scheme, a large number of oblique web members are arranged in the hollow section steel, the construction difficulty is high, and the connection reliability of the oblique web members and the main support of the section steel is poor.

CN201820820870.7 provides a recoverable steel bearing structure of deep basal pit assembled, including fender pile crown beam, H shaped steel is to propping, H shaped steel angle brace, H shaped steel stake splayed, triangle-shaped net triangle-shaped spare, square connector, steel stand and H shaped steel tie rod. The technology has the advantages of high rigidity, good stability and wide applicability. However, the following disadvantages still exist: 1. the construction is relatively complicated; 2. is not suitable for small foundation pits.

Disclosure of Invention

The purpose of the invention is as follows: the utility model aims to provide a steel bearing structure who is convenient, repeatedly usable is under construction to prior art not enough.

The technical scheme is as follows: steel bearing structure, include a plurality of purlins that enclose and form to propping the equipment, enclose the purlin and be H shaped steel to propping, enclose the purlin and be provided with first bolt hole on the H shaped steel web to the joint department that props, enclose the purlin and to propping and adopt attach fitting, double plate assembled joint between.

The connecting joint is formed by combining an H-shaped steel joint and two connecting plates, and the two connecting plates are respectively fixedly arranged on two sides of a web plate of the H-shaped steel joint and are perpendicular to the web plate and a flange of the H-shaped steel joint; a second bolt hole is formed in the connecting plate;

the double plates are square steel plates, third bolt holes are formed in the double plates, and the third bolt holes are in two rows and respectively correspond to the first bolt holes and the second bolt holes;

the connecting joints are arranged between the surrounding purlin joints and/or the opposite supporting joints, the double plates are arranged at the joints, and the third bolt holes are respectively overlapped with the first bolt holes and the second bolt holes and fixedly connected through bolts.

Preferably, for stable structure and convenient construction, the connecting plates are welded on two sides of the H-shaped steel joint web.

Preferably, for stable connection, four double plates are arranged at each connecting joint, and are respectively arranged on two sides of two seams.

Preferably, for stable connection, the first bolt hole, the second bolt hole and the third bolt hole are all provided with three bolt holes.

Has the advantages that: 1. the utility model has the advantages that the construction is convenient, the quality is controllable, the safety is higher compared with the welding connection, and the steel support structure can be repeatedly utilized; 2. the utility model discloses joint structure is firm, can ensure to enclose the purlin and to the joint strength who props, and the flexible operation, and the suitability is strong.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the middle connection joint of the present invention.

Fig. 3 isbase:Sub>A view of the planebase:Sub>A-base:Sub>A of fig. 2.

In the figure: 1. enclosing purlins; 2. oppositely supporting; 3. connecting a joint; 3-1, H-shaped steel joints; 3-2, connecting plates; 4. a double plate.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1: a steel supporting structure comprises a plurality of enclosing purlins 1 and opposite supports 2 which are assembled, wherein the enclosing purlins and the opposite supports are all made of H-shaped steel, and first bolt holes, specifically three bolt holes, are formed in H-shaped steel webs at joints of the enclosing purlins and the opposite supports; the enclosing purlin and the counter brace are assembled and connected by adopting a connecting joint 3 and a double plate 4; the connecting joint 3 is formed by combining an H-shaped steel joint 3-1 and two connecting plates 3-2, and the two connecting plates 3-2 are respectively welded on two sides of a web plate of the H-shaped steel joint 3-1 and are perpendicular to the web plate and a flange of the H-shaped steel joint; the connecting plate 3-2 is provided with second bolt holes, specifically three bolt holes; the double plate 4 is a square steel plate, the double plate 4 is provided with three bolt holes, the three bolt holes are arranged in two rows, and each row of the three bolt holes respectively correspond to the first bolt hole and the second bolt hole; the connecting joints 3 are arranged between the surrounding purlin joints and/or the opposite supporting joints, the double plates 4 are four and are respectively arranged on two sides of the joint, and the third bolt holes are respectively overlapped with the first bolt holes and the second bolt holes and are fixedly connected through bolts.

During construction, foundation pit enclosure design is firstly carried out, and the requirement of safe stress is met. Adopt to enclose purlin and support and carry out the modularization combination, through the utility model discloses the structure carries out the connection design. The joint and the purlin that encloses that corresponds, support supporting construction, through high strength bolted connection, compare in traditional welded connection, it is comparatively convenient to construct, need not fire the operation, has improved the site operation security greatly.

After finishing the foundation pit construction, demolish enclosing purlin and support from the attach fitting position, all components all can the modular processing, demolish the convenience, and the turnover number of times is high, can greatly reduced construction cost for the construction progress.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a steel bearing structure, includes a plurality of purlins of enclosing (1) and forms its characterized in that with propping (2) equipment: the enclosing purlin and the opposite supports are both made of H-shaped steel, first bolt holes are formed in H-shaped steel webs at joints of the enclosing purlin and the opposite supports, and the enclosing purlin and the opposite supports are assembled and connected through connecting joints (3) and double plates (4);

the connecting joint (3) is formed by combining an H-shaped steel joint (3-1) and two connecting plates (3-2), wherein the two connecting plates (3-2) are respectively fixedly arranged on two sides of a web plate of the H-shaped steel joint (3-1) and are perpendicular to the web plate and a flange of the H-shaped steel joint; a second bolt hole is formed in the connecting plate (3-2);

the double plates (4) are square steel plates, and third bolt holes are formed in the double plates (4) and are arranged in two rows and respectively correspond to the first bolt holes and the second bolt holes;

the connecting joints (3) are arranged between the purlin surrounding joints and/or the bracing joints, the double plates (4) are arranged at the joints, and the third bolt holes are respectively overlapped with the first bolt holes and the second bolt holes and are fixedly connected through bolts.

2. The steel support structure of claim 1, wherein: the connecting plates (3-2) are welded on two sides of a web plate of the H-shaped steel joint (3-1).

3. The steel support structure of claim 1, wherein: four double plates (4) are arranged at each connecting joint (3) and are respectively arranged on two surfaces of the two joints.

4. The steel support structure of claim 1, wherein: the first bolt hole, the second bolt hole and the third bolt hole are all provided with three bolt holes.