CN210829270U

CN210829270U - Steel beam fixing structure

Info

Publication number: CN210829270U
Application number: CN201921250369.2U
Authority: CN
Inventors: 郭相参; 安建英; 杜贵文; 王建中; 崔传杰
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-06-23
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a girder steel fixed knot constructs, include: the anchor rod is suitable for anchoring on a well wall; the welding bracket is provided with a side plate, a flat plate and a ribbed plate, the side plate is arranged along the well wall, the side plate is connected with the anchor rod to be fixed on the well wall, the flat plate is horizontally connected to one side of the side plate, the ribbed plate is positioned below the flat plate and is connected with the side plate, and the flat plate is provided with a first connecting hole; the steel beam is supported on the flat plate and is provided with a second connecting hole; bolts respectively passing through the first connection holes and the second connection holes to connect the steel beam and the welding bracket; the auxiliary clamping piece is clamped on the steel beam and connected to the welding bracket. According to the utility model discloses girder steel fixed knot constructs can improve the bearing capacity of girder steel, improves the security of construction and installation.

Description

Steel beam fixing structure

Technical Field

The utility model belongs to the technical field of mechanical structure is equipped to the mine shaft and specifically relates to a girder steel fixed knot constructs is related to.

Background

In the related technology, the steel beam and the well wall fixing structure is mainly characterized in that holes are formed in steel beam wing plates and then the steel beam wing plates are connected with angle steel supporting plates, and the angle steel supporting plates are fixed on the well wall through anchor rods. When the stress of the channel steel beam is increased, angle steel needs to be welded on a web plate of the steel beam, is flush with a wing plate of the steel beam, and is then connected with the angle steel bracket through bolts. This type of fixed structure is much more used in situations where the steel beams are under low stress.

However, with the improvement of the mine capacity, especially in the lifting shaft, the stress of the steel beam is larger and larger, and at the moment, the angle steel supporting plate is thin and is not matched with the shape and size of the high and large steel beam, so that the visual safety is influenced. Meanwhile, the fixed structure of the upper and lower angle steel supporting plates is adopted, the supporting plates or the steel beams are often subjected to on-site hole expansion under the influence of on-site construction quality, the hole expansion size is limited, the installation is difficult, and the bearing capacity of the supporting plates and the steel beams is greatly reduced due to on-site hole expansion, so that the installation quality cannot be guaranteed. In addition, because the electric welding reaming is carried out on the underground site, the construction progress is seriously influenced, and the safety of constructors is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a girder steel fixed knot constructs to improve the bearing capacity of girder steel, improve the security of construction and installation.

According to the utility model discloses girder steel fixed knot constructs, include: the anchor rod is suitable for anchoring on a well wall; the welding bracket is provided with a side plate, a flat plate and a ribbed plate, the side plate is arranged along the well wall, the side plate is connected with the anchor rod to be fixed on the well wall, the flat plate is horizontally connected to one side of the side plate, the ribbed plate is positioned below the flat plate and is connected with the side plate, and the flat plate is provided with a first connecting hole; the steel beam is supported on the flat plate and is provided with a second connecting hole; bolts respectively passing through the first connection holes and the second connection holes to connect the steel beam and the welding bracket; the auxiliary clamping piece is clamped on the steel beam and connected to the welding bracket.

According to the utility model discloses girder steel fixed knot constructs adopts welding bracket to replace current angle steel from top to bottom to support fixed girder steel, adopts supplementary fastener to improve girder steel fixed node's intensity, has guaranteed girder steel fixed node's intensity, has reduced installation operation intensity, guarantees bolted connection, and easy maintenance makes it not take place to destroy when accidental collision simultaneously. The steel beam fixing structure is simple in structure, convenient to machine and mount, low in technical requirement, low in implementation cost and low in labor operation intensity.

In some embodiments, the steel beam has a web and a wing plate, the wing plate is connected to at least one side of the web along the length direction of the web, and the wing plate located below the web is tightly attached to the flat plate and provided with the second connecting hole.

Specifically, the steel beam is at least one of I-steel, channel steel and angle steel.

In some embodiments, the bolts are arranged in a plurality along the length direction of the steel beam, and the auxiliary clamping piece is arranged between the two bolts.

In some embodiments, the auxiliary clamping piece is a U-shaped clamp, the flat plate is provided with a third connecting hole, and an end of the U-shaped clamp is fitted in the third connecting hole.

Specifically, both ends of the U-shaped card are provided with threads, the flat plate is provided with the third connecting holes at both sides of the steel beam, and both ends of the U-shaped card are matched with the nut after penetrating through the third connecting holes at both sides; or only one end of the U-shaped clamp is provided with a thread, the flat plate is positioned on one side of the steel beam and is provided with the third connecting hole, and the end, provided with the thread, of the U-shaped clamp penetrates through the third connecting hole and then is matched with the nut.

In some embodiments, the rib is attached vertically below the plate.

In some embodiments, the side plate is a vertical straight plate, or the side plate is an arc-shaped plate matched with the well wall.

In some embodiments, the side plates are provided with a filling layer on the side facing the well wall.

Specifically, the filling layer is a cement mortar layer which is solidified after fluid is filled into a gap between the side plate and the well wall.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a side view of a steel beam fastening structure in an embodiment of the present invention (wherein structures that are not visible are shown in phantom lines for ease of understanding);

FIG. 2 is a side view of a steel beam fastening structure in an embodiment of the present invention (wherein structures that are not visible are shown in phantom lines for ease of understanding);

FIG. 3 is a side view of a welding bracket (side plate is a vertical straight plate) according to an embodiment of the present invention;

fig. 4 is a side view of an anchor rod in an embodiment of the present invention;

FIG. 5 is a top view of an I-beam according to an embodiment of the present invention;

fig. 6 is a top view of the channel steel and the angle steel in the embodiment of the present invention;

FIG. 7 is a top view of a steel beam fastening structure in an embodiment of the present invention (wherein structures that are not visible are shown in phantom lines for ease of understanding);

fig. 8 is a top view of a welding bracket (side plate is an arc plate adapted to the well wall) in the embodiment of the present invention;

FIG. 9 is a top view of a steel beam fastening structure in an embodiment of the present invention (wherein structures that are not visible are shown in phantom lines for ease of understanding);

FIG. 10 is a schematic structural view of an auxiliary clip member (U-shaped side surface) according to an embodiment of the present invention;

fig. 11 is a schematic structural view of an auxiliary clip (with a side approximately in an L shape) according to an embodiment of the present invention.

Reference numerals:

a steel beam fixing structure 100,

An anchor rod 1,

Welding bracket 2, side plate 21, fourth connecting hole 211, flat plate 22, first connecting hole 221, third connecting hole 222, rib plate 23,

The steel beam 3, the web plate 31, the wing plate 32, the second connecting hole 321, the I-steel 33, the channel steel 34, the angle steel 35,

A bolt 4,

An auxiliary clamping piece 5,

A nut 6,

The borehole wall 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "length", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A steel beam fixing structure 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 11.

According to the utility model discloses girder steel fixed knot constructs 100, as shown in fig. 1-5, include: stock 1, welding bracket 2, girder steel 3, bolt 4 and supplementary fastener 5. The welding bracket 2 is provided with a side plate 21, a flat plate 22 and a rib plate 23, wherein the flat plate 22 is horizontally connected to one side of the side plate 21, the rib plate 23 is positioned below the flat plate 22 and connected with the side plate 21, the flat plate 22 is provided with a first connecting hole 221, and the steel beam 3 is provided with a second connecting hole 321. The anchor rods 1 are adapted to be anchored to the borehole wall 200 with the side plates 21 disposed along the borehole wall 200, the side plates 21 being connected to the anchor rods 1 for securement to the borehole wall 200. Girder steel 3 supports on dull and stereotyped 22, and bolt 4 passes first connecting hole 221 and second connecting hole 321 respectively with connection girder steel 3 and welding bracket 2, and supplementary fastener 5 card is on girder steel 3 and connect on welding bracket 2.

The welding bracket 2 is a welding part, and the side plate 21, the flat plate 22 and the rib plate 23 are connected into a whole by welding. Girder steel fixed knot constructs 100 is when the assembly, earlier with welding bracket 2 through stock 1 be fixed in the wall of a well 200 on, then put up girder steel 3 on welding bracket 2, erect with bolt 4 with girder steel 3 and welding bracket 2 fixed connection after counterpointing, finally with supplementary fastener 5 with girder steel 3 card on welding bracket 2.

It should be noted that the bracket provides a supporting function for the steel beam at both ends of the steel beam, and is a support of the steel beam. The strength of the bracket design and the quality of the field installation quality are directly related to the bearing capacity of the steel beam, and the bracket design is particularly important in lifting the vertical shaft. In recent years, mine lifting capacity and lifting speed are higher and higher, which puts higher requirements on installation of steel beams. Brackets that provide support for the steel beams are also required to match the load bearing capacity of the steel beams. The design innovation of bracket not only will guarantee that its design strength meets the demands, also need guarantee simultaneously that its overall dimension will coordinate with the girder steel size, satisfies visual safety, also needs the abominable operational environment in field of considering simultaneously, will simple to operate, reduces intensity of labour.

At present, the steel beam is still fixed mainly by adopting a bracket structure of upper and lower angle steels in the prior art. This kind of structure all sets up the angle steel as the bracket on the girder steel downside, and the embodiment of this structure is: and welding stiffening rib plates on the angle steel, respectively forming corresponding bolt holes in the steel beam and the angle steel, mounting the anchor rods on the well wall during mounting, then mounting the lower angle steel, fixing the steel beam, connecting the steel beam on the lower angle steel by using bolts, then mounting the upper angle steel, and finally connecting the steel beam on the upper angle steel by using bolts. The hole is not only needed to be aligned with the upper angle steel, but also needs to be aligned with the lower angle steel when the steel beam is installed, the hole is difficult to align on the site of the structure, the installation operation intensity is high, the installation quality can not be guaranteed, the hole is usually expanded by electric welding on the site, the hole expansion size is limited due to the size influence of the angle steel, serious persons can burn the supporting plate, and the supporting capacity of the supporting plate is seriously reduced. Therefore, the structure can not meet the requirement of the bearing capacity of the steel beam and the visual safety. In some structures adopting the upper and lower angle steel brackets, due to the fact that bolt connection cannot be achieved, welding installation is adopted, namely the upper and lower angle steels are anchored on a well wall, and steel beams are directly welded on the upper and lower angle steels, and certain difficulty is brought to maintenance and replacement of the rear brackets and the steel beams. In a word, the upper and lower angle steel brackets can not guarantee and provide the required intensity of cage guide installation fixed node, increase installation working strength, weaken the bearing capacity of girder steel, influence the operation that promotes the container and reduce the promotion task of shaft. When the steel beam is subjected to an accidental event, the due function of the steel beam cannot be exerted, and the steel beam is easy to damage.

Along with the development of the technology and the requirement of mine production, the operation speed of the lifting container is faster and faster, so that higher and higher quality requirements are provided for the design, installation, maintenance and replacement of the steel beam. The steel beam is fixed, so that the steel beam is not damaged when stressed normally, and is not invalid when an accidental event occurs, and the steel beam continues to play a role.

This application has adopted welding bracket 2 to replace the angle steel bracket among the current scheme, and welding bracket 2 has curb plate 21, dull and stereotyped 22 and floor 23, and welding bracket 2 bulk rigidity and intensity obtain promoting by a wide margin under the adding of floor 23, consequently also promotes by a wide margin to the bearing capacity of girder steel 3. And the welding bracket 2 is formed by welding and connecting the side plate 21, the flat plate 22 and the rib plate 23, and three plate bodies in size can be selected to be proper sizes according to actual needs, namely the size of the welding bracket 2 can be determined according to design strength and opening requirements, so that the trouble of large hole expansion on site is avoided. Even if there is a need for reaming, since the welding bracket 2 is not too narrow as an angle bracket, the reaming has little influence on the rigidity of the welding bracket 2, and therefore the restriction of reaming is small. The arrangement of the welding bracket 2 avoids the need of arranging brackets below the upper part of the steel beam, and overcomes the difficult problem of alignment of the upper bracket, the lower bracket and the anchor rod. Therefore, the steel beam fixing structure 100 of the welding bracket 2 is matched with a steel beam with a large load in terms of bearing capacity, external dimension and visual safety, and the bearing capacity of the steel beam is ensured. Because the underground working environment is severe, local hole expansion cannot be avoided, the design is added with the auxiliary clamping piece 5 to compensate the strength of the installation node in consideration of the factors, and the safe use of the installation node is ensured. In a word, welding bracket 2 simple structure, processing is convenient, and technical requirement is low, realizes with low costs, has both reduced intensity of labour, and simple to operate for the installation progress has improved girder steel fixed node's intensity again.

According to the utility model discloses girder steel fixed knot constructs 100 adopts welding bracket 2 to replace current angle steel from top to bottom to support fixed girder steel 3, adopts supplementary fastener 5 to improve girder steel fixed node's intensity, has guaranteed girder steel fixed node's intensity, has reduced installation operation intensity, guarantees bolt 4 and connects, easy maintenance, makes it not take place to destroy when accidental collision simultaneously. The steel beam fixing structure is simple in structure, convenient to machine and mount, low in technical requirement, low in implementation cost and low in labor operation intensity.

Optionally, the first connection hole 221 may be designed by rough assembly, so as to reduce the situation of electric welding and reaming in the underground field as much as possible, reduce the influence of reaming on the rigidity of the welding bracket 2, facilitate installation, accelerate the construction progress, and improve the safety of the installer.

In some embodiments, as shown in fig. 1-6, the steel beam 3 has a web 31 and a wing 32, the wing 32 is connected to at least one side of the web 31 along the length direction of the web 31, and the wing 32 under the web 31 is closely attached to the flat plate 22 and is provided with a second connecting hole 321. The wing plate 32 below the web plate 31 is tightly attached to the flat plate 22, so that the force borne by the steel beam 3 can be uniformly dispersed on the flat plate 22, the condition of local stress on the flat plate 22 is reduced, and the fatigue resistance of the flat plate 22 is improved. The second connection hole 321 of the wing plate 32 under the web 31 can be matched with the first connection hole 221 of the flat plate 22, so that the wing plate 32 under the web 31 can be used as a hole for connecting with the flat plate 22.

Specifically, as shown in fig. 1 to 7, the steel beam 3 is at least one of an i-beam 33, a channel 34, and an angle 35. When using an i-beam 33, as shown in fig. 1 and 5, the i-beam 33 is supported on the welding carriage 2. The bolts 4 pass through the first and second coupling holes 221 and 321, respectively, to couple the i-steel 33 and the welding bracket 2. The auxiliary clamping piece 5 is clamped on the I-shaped steel 33 and connected to the welding bracket 2. When a channel 34 is used, as shown in fig. 2 and 6, the channel 34 is supported on the slab 22. The bolts 4 pass through the first and second connection holes 221 and 321 to connect the channel steel 34 and the welding bracket 2, respectively. The auxiliary clamping piece 5 is clamped on the I-shaped steel 33 and connected to the welding bracket 2. Meanwhile, angle iron 35 may be provided on the welding bracket 2 to further increase the bearing capacity of the channel steel 34.

Further, as shown in fig. 2, the angle steel 35 may be mounted on the flat plate 22, and as shown in fig. 7, the angle steel 35 is also fixed to the flat plate 22 by the bolt 4.

In some embodiments, as shown in fig. 1 and 2, a plurality of bolts 4 are provided along the length direction of the steel beam 3, and the auxiliary clamp 5 is provided between the two bolts 4. Supplementary fastener 5 can improve the joint strength between two bolts 4 like this, is favorable to improving girder steel 3 and welding bracket 2's joint strength, further improves girder steel 3's bearing capacity.

In some embodiments, as shown in fig. 10 and 11, the auxiliary card member 5 is a U-shaped card, and the flat plate 22 is provided with a third connecting hole 222, and an end of the U-shaped card is fitted into the third connecting hole 222.

Specifically, as shown in fig. 1-3, both ends of the U-shaped clip are provided with threads, both sides of the steel beam 3 on the flat plate 22 are provided with third connecting holes 222, and both ends of the U-shaped clip are matched with the nut 6 after passing through the third connecting holes 222 on both sides; or, only one end of the U-shaped clip is provided with a thread, the flat plate 22 on one side of the steel beam 3 is provided with a third connecting hole 222, and the end of the U-shaped clip provided with the thread passes through the third connecting hole 222 and then is matched with the nut 6. At least one end of the U-shaped clip is threaded so as to pass through the third connecting hole 222 to be engaged with the nut 6, thereby fixing the U-shaped clip between the steel beam 3 and the flat plate 22.

The side surface of the U-shaped card is U-shaped or L-shaped. As shown in fig. 1 and 10, when the i-beam 33 is used, the U-shaped auxiliary clip 5 can be caught on the wing 32 of the i-beam 33 through the third coupling hole 222, thereby improving the coupling strength between the flat plate 22 and the i-beam 33. As shown in fig. 2 and 11, when the channel steel 34 is adopted, the longer end of the L-shaped auxiliary clip 5 can be clipped on the wing plate 32 of the channel steel 34 and the shorter end thereof is clipped on the web plate 31 of the channel steel 34 through the third connecting hole 222, so that the connecting strength between the flat plate 22 and the channel steel 34 is improved.

In some embodiments, as shown in fig. 1-3, ribs 23 are attached vertically below plate 22. Thus, the rib 23 under the flat plate 22 can be tightly attached to the flat plate 22, so that when the flat plate 22 receives an external force, the external force can be transmitted to the rib 23, and the rib 23 can bear a part of the external force, thereby improving the strength and stability of the support of the welding bracket 2.

In some embodiments, the side plates 21 are vertical straight plates, as shown in fig. 3, or the side plates 21 are curved plates adapted to the borehole wall 200, as shown in fig. 8. As shown in fig. 1, vertical plates may be used when the well wall 200 is more vertical. As shown in fig. 7 and 9, when the well wall 200 has a curvature, an arcuate plate adapted to the well wall 200 may be used. When the side plate 21 is connected with the anchor rod 1 to be fixed on the well wall 200, the side plate 21 can be well contacted with the well wall 200, so that the stability of the installation of the welding bracket 2 can be improved.

Alternatively, as shown in fig. 3, a fourth connecting hole 211 may be formed in the side plate 21, the end of the anchor rod 1 may have a thread, and the end of the anchor rod 1 having the thread is engaged with the nut 6 after passing through the fourth connecting hole 211, so that the side plate 21 may be fixed to the well wall 200 by the anchor rod 1.

In some embodiments, the side plates 21 are provided with a filling layer (not shown) on the side facing the borehole wall 200. It can be understood that a certain gap exists between the side plate 21 and the well wall 200, and the side plate 21 is provided with the filling layer on the side facing the well wall 200, so that the gap can be filled, the connection strength between the side plate 21 and the well wall 200 is improved, and the installation stability of the welding bracket 2 is further improved.

Specifically, the filling layer is a cement mortar layer which is solidified after fluid is filled in a gap between the side plate 21 and the well wall 200. Therefore, fluid can be well filled into a gap between the side plate 21 and the well wall 200, so that the side plate 21 and the well wall 200 can be tightly connected through the solidified cement mortar layer, the connection strength between the side plate 21 and the well wall 200 is improved, and the installation stability of the welding bracket 2 is further improved. Of course, the filling layer may be a colloidal layer or the like.

A steel beam fixing structure 100 according to an embodiment of the present invention is described below with reference to fig. 1.

According to the utility model discloses girder steel fixed knot constructs 100, include: stock 1, welding bracket 2, girder steel 3, bolt 4, supplementary fastener 5 and nut 6.

The end of the anchor rod 1 may have a thread, and the end of the anchor rod 1 provided with the thread passes through the fourth coupling hole 211 and then is engaged with the nut 6 to be fixed to the well wall 200.

The welding carriage 2 has side plates 21, flat plates 22, and ribs 23. The side plates 21 are vertical straight plates and are arranged along the well wall 200. The side plate 21 is provided with a fourth coupling hole 211. The plate 22 is horizontally coupled to one side of the side plate 21, and the plate 22 is provided with a first coupling hole 221 and a third coupling hole 222. The rib 23 is located below the flat plate 22 and connected to the side plate 21.

The steel beam 3 has a web 31 and flanges 32, the flanges 32 are connected to the upper and lower sides of the web 31 along the length direction of the web 31, and the flanges 32 located below the web 31 are closely attached to the flat plate 22 and have second connection holes 321. The steel beam 3 is an I-beam 33. Bolts 4 pass through the first and second connection holes 221 and 321 to connect the steel beam 3 and the welding bracket 2, respectively. The bolts 4 are provided in plural along the length direction of the steel beam 3.

Supplementary fastener 5 card is on girder steel 3 and connect on welding bracket 2. An auxiliary clip 5 is provided between the two bolts 4. The auxiliary clip member 5 is a U-shaped clip, and the end of the U-shaped clip is fitted in the third connecting hole 222. Both ends of the U-shaped card are provided with threads, third connecting holes 222 are formed in the flat plate 22 and located on both sides of the steel beam 3, and both ends of the U-shaped card are matched with the nuts 6 after penetrating through the third connecting holes 222 on both sides.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A steel beam fixing structure, comprising:

the anchor rod is suitable for anchoring on a well wall;

the welding bracket is provided with a side plate, a flat plate and a ribbed plate, the side plate is arranged along the well wall, the side plate is connected with the anchor rod to be fixed on the well wall, the flat plate is horizontally connected to one side of the side plate, the ribbed plate is positioned below the flat plate and is connected with the side plate, and the flat plate is provided with a first connecting hole;

the steel beam is supported on the flat plate and is provided with a second connecting hole;

bolts respectively passing through the first connection holes and the second connection holes to connect the steel beam and the welding bracket;

the auxiliary clamping piece is clamped on the steel beam and connected to the welding bracket.

2. The steel beam fixing structure according to claim 1, wherein the steel beam has a web and a wing plate, the wing plate is connected to at least one side of the web along a length direction of the web, the wing plate located below the web is closely attached to the flat plate and provided with the second connecting hole.

3. The steel beam fastening structure of claim 2, wherein the steel beam is at least one of an i-steel, a channel steel, and an angle steel.

4. The steel beam fixing structure according to claim 1, wherein a plurality of bolts are provided along a length direction of the steel beam, and the auxiliary clip is provided between the two bolts.

5. The steel beam fixing structure according to claim 1, wherein the auxiliary clip is a U-shaped clip, the flat plate is provided with a third connecting hole, and an end of the U-shaped clip is fitted into the third connecting hole.

6. The steel beam fixing structure according to claim 5, wherein both ends of the U-shaped clip are provided with threads, the flat plate is provided with the third connecting holes at both sides of the steel beam, and both ends of the U-shaped clip are matched with the nut after passing through the third connecting holes at both sides; or only one end of the U-shaped clamp is provided with a thread, the flat plate is positioned on one side of the steel beam and is provided with the third connecting hole, and the end, provided with the thread, of the U-shaped clamp penetrates through the third connecting hole and then is matched with the nut.

7. The steel beam fastening structure of claim 1, wherein the cross brace is connected vertically below the flat plate.

8. The steel beam fixing structure according to claim 1, wherein the side plates are vertical straight plates, or the side plates are arc-shaped plates matched with the well wall.

9. The steel beam fastening structure according to claim 1, wherein the side plate is provided with a filling layer at a side facing the well wall.

10. The steel girder fixing structure of claim 9, wherein the filling layer is a cement mortar layer which is solidified after fluid is filled in a gap between the side plate and the well wall.