CN113502919A

CN113502919A - Beam column structure of steel structure

Info

Publication number: CN113502919A
Application number: CN202110834186.0A
Authority: CN
Inventors: 计志超; 周静霞; 赵小勇; 姚喜莲; 郑纯; 沈水泉; 张卫; 周梦瑶; 何耀
Original assignee: Zhejiang Hongchao Construction Group Co ltd
Current assignee: Zhejiang Hongchao Construction Group Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-10-15

Abstract

The application relates to the field of building structures, in particular to a beam column structure of a steel structure, which comprises an upright post and a cross beam arranged on the upright post, wherein a water storage cavity is formed in the cross beam along the length direction of the cross beam, a plurality of water outlets which are communicated with the water storage cavity are formed in the bottom surface of the cross beam, an opening and closing assembly used for opening or closing the water outlets simultaneously is arranged at the bottom of the cross beam, the opening and closing assembly comprises a bearing plate which is attached to the bottom surface of the cross beam and closes the water outlets simultaneously, and the bearing plate is bonded with the cross beam through hot melt adhesive; the storage cavity is internally provided with a plurality of groups of hanging components corresponding to the water outlets, and each hanging component comprises a pull rope which passes through the corresponding through hole and is connected between the inner wall of the water storage cavity and the bearing plate. This scheme is through the crossbeam internal storage water storage at the steel construction to can discharge the supplementary fire of putting out a fire or reduce the intensity of a fire when the condition of a fire appears automatically, for putting out a fire and providing sufficient time, put out the intensity of a fire before stand and crossbeam take place to warp, with protection stand and crossbeam.

Description

Beam column structure of steel structure

Technical Field

The application relates to the field of building structures, in particular to a beam column structure of a steel structure.

Background

The steel structure is a structure formed by steel materials, is one of main building structure types, is light in self weight and simple and convenient to construct, and is widely applied to the fields of large-scale factory buildings, venues, super-high buildings and the like.

The steel structure has a disadvantage in that it is very poor in fire resistance, and mechanical properties such as yield strength, spring modulus, etc. are lowered with an increase in temperature under the high temperature of a fire although the material used for the steel structure is a non-combustible material. When the fire cannot be extinguished in time and the temperature born by the steel structure material exceeds a critical value, the upright posts and the cross beams of the steel structure are seriously deformed and lose the bearing capacity, so that more serious safety accidents are caused.

Disclosure of Invention

In order to delay the steel construction and take place to warp to provide comparatively sufficient time of putting out a fire, this application provides the beam column structure of a steel construction.

The application provides a beam column structure of steel construction adopts following technical scheme:

a beam column structure of a steel structure comprises a stand column and a cross beam arranged on the stand column, wherein a water storage cavity is formed in the cross beam along the length direction of the cross beam, a plurality of water outlets which are communicated with the water storage cavity are formed in the bottom surface of the cross beam, and the water outlets are arranged at intervals along the length direction of the cross beam; the bottom of the cross beam is provided with an opening and closing assembly for opening or closing the water outlets simultaneously, the opening and closing assembly comprises a bearing plate which is attached to the bottom surface of the cross beam and closes the water outlets simultaneously, and the bearing plate is bonded with the cross beam through hot melt adhesive; the storage cavity is internally provided with a plurality of groups of hanging assemblies corresponding to the water outlets, each hanging assembly comprises a pull rope which penetrates through the corresponding through hole and is connected to the inner wall of the water storage cavity and between the bearing plates, and the pull ropes extend when the bearing plates are far away from the cross beam.

Through adopting above-mentioned technical scheme, the water of storage can absorb partial heat in the crossbeam, and when the hot melt adhesive will soften gradually receiving the influence that the temperature rose, the intensity of hot melt adhesive is not enough to bond again and accepts the board, accept the board and keep away from the crossbeam with the whereabouts, the delivery port just opened this moment, the water of crossbeam water storage intracavity is discharged from the delivery port, can assist and put out a fire or reduce the intensity of a fire, provide sufficient time for putting out the intensity of a fire, with put out a fire before stand and crossbeam received temperature reach the critical value, avoid stand and crossbeam to warp and reduce bearing capacity, thereby reach the purpose of protection stand and crossbeam. When the bearing plate falls, the pull rope is gradually pulled out of the water storage cavity until the pull rope is tightened, the bearing plate is suspended below the cross beam, the bearing plate is prevented from falling on the ground and being deformed and damaged, and meanwhile, the bearing plate is conveniently installed on the cross beam.

Preferably, the opening and closing assembly further comprises a plurality of plugging pieces arranged on the receiving plate, the plugging pieces correspond to a plurality of water outlets one to one, each plugging piece comprises a first plugging block and a second plugging block, the first plugging block is connected with the receiving plate, the second plugging block is connected with one end, far away from the receiving plate, of the first plugging block, the second plugging block is in clearance fit with the corresponding water outlets, the pull rope is connected with the second plugging block, and the cross section of the first plugging block is larger than that of the second plugging block.

Through adopting above-mentioned technical scheme, scribble the hot melt adhesive on first shutoff piece and second shutoff piece, insert the second shutoff piece again in the water outlet that corresponds, first shutoff piece will be contradicted with the crossbeam, treat the hot melt adhesive solidification back, every second shutoff piece bonds with the inner wall that corresponds the delivery port, every first shutoff piece bonds with the crossbeam, can conveniently realize accepting being connected of board and crossbeam, can promote the sealed degree to every delivery port again.

Preferably, the bottom surface of crossbeam is provided with the holding tank in the opening part of every delivery port, and the holding tank supplies the first plugging block that corresponds to inlay to establish, first plugging block and the holding tank clearance fit that corresponds.

Through adopting above-mentioned technical scheme, the seting up of holding tank makes also can bond between the inside wall of first plugging block and holding tank and have the hot melt adhesive to further increased the bonding area of contact of first plugging block with the crossbeam, made the position of accepting the board more firm.

Preferably, each first plugging block is connected with the bearing plate through a bolt, and the bolt penetrates through the bearing plate and is in threaded connection with the first plugging block.

Through adopting above-mentioned technical scheme, can tear open with first plugging block earlier and accept the board, then when the fixed plugging piece that bonds alone, alright break away from the inconvenience that causes by the weight of accepting the board, make the hot melt adhesive can fix the plugging piece on the crossbeam more smoothly simultaneously.

Preferably, the cross section of the second blocking block is polygonal, and the water outlet is arranged in a polygonal shape matched with the second blocking block.

Through adopting above-mentioned technical scheme, when screwing the bolt on first plugging block, make first plugging block can not follow the bolt rotation by the butt of second plugging block and delivery port inner wall, when making the bolt can screw, reduce the effort that the hot melt adhesive receives, make the hot melt adhesive can bond plugging piece and crossbeam steadily before being heated and soften.

Preferably, the top surface of the bearing plate is provided with a first diversion trench, the first diversion trench is communicated with the end surfaces of the two ends of the bearing plate, the two sides of the first diversion trench on the bearing plate are respectively provided with a second diversion trench at intervals, the second diversion trench is provided with a plurality of flow distribution ports communicated with the side wall of the bearing plate at the same side, and the flow distribution ports are arranged at intervals along the extending direction of the second diversion trench.

By adopting the technical scheme, after the water outlet is opened, water in the water storage cavity falls on the bearing plate, and the first diversion trench can divert water to the two ends of the bearing plate and is used for pouring the stand column on the stand column to cool down, so that the burning time of the stand column can be prolonged. Two second guiding gutters are used for draining water from each flow dividing port after water is collected, and the area and the uniformity degree of water scattering in the water storage cavity can be increased.

Preferably, a plurality of shunting holes are formed at the bottom of the second diversion trench, and the shunting holes are arranged at intervals along the extending direction of the second diversion trench.

Through adopting above-mentioned technical scheme, the water part in the second guiding gutter can be followed the diffluence hole and discharged, can increase and accept the water that falls under the board.

Preferably, the bottom of the first diversion trench is provided with a jack for a bolt to pass through, and the width of the first diversion trench is larger than the aperture of the jack.

By adopting the technical scheme, when the bolt penetrates through the jack and is screwed on the first blocking block, the bolt can be prevented from blocking the flow of water in the first diversion trench.

Preferably, a plurality of first hooks are respectively arranged on two sides of the cross beam, a plurality of second hooks are respectively arranged on two sides of the bearing plate, and the plurality of second hooks on one side of the bearing plate are in one-to-one correspondence with the plurality of first hooks on the same side of the cross beam.

Through adopting above-mentioned technical scheme, before will accepting board and shutoff piece separation, will use the rope earlier to be connected the second couple on will accepting the board with the first couple on the crossbeam for accept the board and still can hang in the below of crossbeam after separating with the shutoff piece, can save the higher height of board is accepted in the lifting when installing the board once more.

Preferably, the suspension assembly further comprises a rotating shaft rotatably connected in the water storage cavity, one end of the pull rope is fixedly connected with the rotating shaft, and the part of the pull rope, which is accommodated in the water storage cavity, is wound on the rotating shaft; the outer side of the beam is also provided with a force application part for rotating the rotating shaft.

Through adopting above-mentioned technical scheme, the pivot can supply the stay cord rule to twine for the stay cord can be pulled out the water storage chamber smoothly when accepting the board whereabouts. When the bearing plate needs to be installed on the cross beam, the pull rope can be quickly wound on the rotating shaft again by rotating the force application part.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement that the water storage cavity, the bearing plate and the cross beam are bonded through the hot melt adhesive, the water in the water storage cavity can assist in extinguishing fire, and sufficient time is provided for extinguishing fire, so that the stand column and the cross beam are prevented from being excessively burnt;

2. through the arrangement of the plugging piece, the connection between the bearing plate and the cross beam can be conveniently realized, and the sealing degree of each water outlet can be improved;

3. through the arrangement of the first diversion trench, the second diversion trench, the diversion port and the diversion hole, the water scattering area and the water scattering uniformity in the water storage cavity can be increased;

4. through the setting of hanging the subassembly, can avoid accepting the board and drop subaerial and warp the damage, also make things convenient for again simultaneously to accept the board and install on the crossbeam.

Drawings

FIG. 1 is a schematic view of a beam-column structure of a steel structure in an embodiment of the present application;

FIG. 2 is a schematic view showing the structure of the opening/closing assembly when opening the water outlet;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a schematic view showing an exploded structure of the opening and closing assembly.

Description of reference numerals: 1. a column; 2. a cross beam; 21. a water storage cavity; 22. a top plate; 23. a web; 24. a base plate; 241. a water outlet; 242. accommodating grooves; 25. a first hook; 3. an opening and closing assembly; 31. a bearing plate; 311. a jack; 312. a first diversion trench; 313. a second guiding gutter; 314. a shunt port; 315. a shunt hole; 316. a second hook; 32. a blocking member; 321. a first plugging block; 322. a second plugging block; 33. a bolt; 4. a suspension assembly; 41. pulling a rope; 42. a rotating shaft; 43. a force application part.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses beam column structure of steel construction. Referring to fig. 1 and 2, the beam-column structure includes a vertical column 1 and a cross beam 2, and an end of the cross beam 2 is fixedly connected to the vertical column 1. A water storage cavity 21 capable of storing water is arranged in the cross beam 2, and the water storage cavity 21 is communicated with an indoor water supply pipeline. The bottom of crossbeam 2 is seted up the delivery port 241 that supplies water exhaust, and crossbeam 2 bottom is provided with the subassembly 3 of opening and close of closed delivery port 241, and when the condition of a fire appeared, the subassembly 3 of opening and close opened and close delivery port 241 and in order to put out a fire.

Referring to fig. 1 and 2, the cross beam 2 includes a top plate 22 and a bottom plate 24 which are parallel to each other and spaced apart from each other, two webs 23 which are parallel to each other and spaced apart from each other are fixedly connected between the top plate 22 and the bottom plate 24, and the water storage cavity 21 is enclosed by the top plate 22, the two webs 23 and the bottom plate 24, so that the water storage cavity 21 extends along the length direction of the cross beam 2. The water outlets 241 are formed in the bottom plate 24, the plurality of water outlets 241 are arranged in a plurality, and the plurality of water outlets 241 are arranged at equal intervals along the length direction of the bottom plate 24, i.e., the cross beam 2.

Referring to fig. 2, the opening and closing assembly 3 includes a receiving plate 31 disposed parallel to the bottom plate 24, a longitudinal direction of the receiving plate 31 is parallel to a longitudinal direction of the bottom plate 24, and a width of the receiving plate 31 is the same as a width of the bottom plate 24. The top surface of the bearing plate 31 is connected with a plurality of plugging pieces 32, the plurality of plugging pieces 32 correspond to the plurality of water outlets 241 one by one, the plugging pieces 32 are embedded into the water outlet holes to close the water outlets 241, and the plugging pieces 32 and the water outlets 241 are bonded and fixed through hot melt adhesive for bonding metal materials.

The physical state of hot melt adhesive changes along with the change of temperature, when the condition of a fire appears, indoor ambient temperature includes that the temperature of stand 1 and crossbeam 2 self will all rise, the hot melt adhesive in every delivery port 241 can soften gradually, when the intensity of hot melt adhesive is not enough to bond shutoff piece 32, shutoff piece 32 will deviate from delivery port 241 and follow and accept board 31 whereabouts, the water in the water storage chamber 21 alright discharge through delivery port 241 this moment, in order to assist puts out a fire or reduces the intensity of a fire, provide sufficient time for putting out the intensity of a fire, put out the fire before stand 1 and crossbeam 2 receive the temperature and reach the critical value, avoid stand 1 and crossbeam 2 to take place to warp and bearing capacity reduces, thereby reach the purpose of protection stand 1 and crossbeam 2.

It is worth mentioning that the temperature transfer on the cross beam 2 is not uniform, i.e. the strength of the hot melt glue is not lost for a uniform length of time. Through accepting board 31 and a plurality of shutoff pieces 32 to be connected simultaneously, when the hot melt adhesive that is located the higher position of temperature was not enough to bond shutoff pieces 32, accept the certain height of partial whereabouts of board 31 corresponding this position, will increase the effort that the hot melt adhesive received in all the other delivery ports 241 for all the other shutoff pieces 32 can deviate from corresponding delivery port 241 in advance before the hot melt adhesive intensity that corresponds loses completely, thereby make the discharge that water in the crossbeam 2 can be faster.

Referring to fig. 2, a plurality of groups of suspension assemblies 4 are further disposed in the water storage cavity 21, and the plurality of groups of suspension assemblies 4 correspond to the plurality of water outlets 241 one by one. The suspension assembly 4 comprises a rotating shaft 42 horizontally arranged, and two ends of the rotating shaft 42 are respectively and rotatably connected with the web plates 23 on the same side. A pull rope 41 is wound on the rotating shaft 42, one end of the pull rope 41 is fixedly connected with the side wall of the rotating shaft 42, and the other end of the pull rope 41 penetrates through the corresponding water outlet 241 and is connected with the plugging piece 32 corresponding to the water outlet 241. One end of the rotating shaft 42 penetrates through the web 23 on the same side and is fixedly connected with the force application part 43, and before the plugging piece 32 is installed on the cross beam 2 again, the rotating shaft 42 can be conveniently and actively rotated through the force application part 43, so that the pull rope 41 is firstly wound on the rotating shaft 42.

The plugging pieces 32 fall off the water outlet 241 and then fall down together with the bearing plate 31, the pulling rope 41 connected with each plugging piece 32 is gradually pulled out of the water storage cavity 21, the pulling rope 41 is stored in the water storage cavity 21 in a winding mode on the rotating shaft 42, the knotting probability of the pulling rope 41 can be reduced, and the pulling rope 41 can be pulled out more smoothly. When the pulling rope 41 is tightened, the plugging piece 32 and the bearing plate 31 stop falling and are suspended below the cross beam 2, so that the bearing plate 31 is prevented from falling to a higher height to damage and deform, the bearing plate 31 is very convenient to mount on the cross beam 2, and even if the strength of hot melt adhesive is reduced under the condition of no fire, the bearing plate 31 can be prevented from falling, and the safety accident of personnel is avoided. The purpose of providing the string 41 in the water storage chamber 21 is to reduce the possibility that the string 41 will be burned out by fire because the string 41 is wetted with water when being pulled out of the water storage chamber 21.

Referring to fig. 2, fig. 3 and fig. 4, the blocking piece 32 includes a first blocking block 321 and a second blocking block 322 which are coaxially disposed, the first blocking block 321 is connected to the receiving plate 31, and the second blocking block 322 is fixedly connected to one end of the first blocking block 321 far away from the receiving plate 31, that is, the top end of the first blocking block 321. The second block piece 322 closes the water outlet 241 by being inserted into the water outlet 241, and the second block piece 322 is clearance-fitted with the water outlet 241. The cross section of first plugging piece 321 is greater than the cross section of second plugging piece 322, a plurality of holding tanks 242 have been seted up to a plurality of delivery ports 241 of the bottom surface of bottom plate 24, holding tank 242 and the delivery port 241 coaxial line that corresponds, holding tank 242 is used for supplying first plugging piece 321 to inlay and establishes, first plugging piece 321 and holding tank 242 clearance fit, and the degree of depth of holding tank 242 is the same with the ascending thickness of first plugging piece 321 in the axis direction, first plugging piece 321 imbeds behind the holding tank 242, the top surface of accepting board 31 is laminated with the bottom surface of bottom plate 24.

The plugging piece 32 is coated with molten hot melt adhesive and is adhered to the water outlets 241, so that the position of the bearing plate 31 is fixed, the bearing plate 31 is not required to be coated with the hot melt adhesive in a large area, the operation step of selecting the position of coating the hot melt adhesive on the bearing plate 31 can be omitted, and meanwhile, the sealing degree of each water outlet 241 can be improved. When installation shutoff piece 32, scribble the hot melt adhesive on first shutoff piece 321 and the second shutoff piece 322 earlier than, imbed second shutoff piece 322 in delivery port 241 again, first shutoff piece 321 will be imbedded into holding tank 242 this moment in, between the inner wall of second shutoff piece 322 and delivery port 241, it has the hot melt adhesive all to bond between the inner wall of second shutoff piece 322 and holding tank 242, the setting up of holding tank 242, first shutoff piece 321 has further been increased with the bonding area of contact of crossbeam 2, make the position of accepting board 31 more firm.

Referring to fig. 4, the receiving plate 31 is connected to each plugging piece 32 through a bolt 33, an insertion hole 311 for the bolt 33 to pass through is formed in the receiving plate 31, and the bolt 33 is screwed with the first plugging block 321 of the corresponding plugging piece 32 after passing through the insertion hole 311. When the plugging pieces 32 are installed, each bolt 33 on the bearing plate 31 is screwed off, each plugging piece 32 can be installed one by one, the inconvenience caused by the weight of the bearing plate 31 to the installation of the plugging pieces 32 is eliminated, the hot melt adhesive is not affected by the weight of the bearing plate 31 when the hot melt adhesive is not completely solidified, and the adhesion and the fixation of the plugging pieces 32 in the water outlet 241 and the accommodating groove 242 can be smoother.

Referring to fig. 3 and 4, the cross section of the second blocking block 322 is square, and the cross section of the water outlet 241 is correspondingly square matched with the second blocking block 322, so that the first blocking block 321 will not rotate along with the bolt 33 when the bearing plate 31 is connected with each blocking piece 32. The purpose of this arrangement is that the second block 322 abuts against the inner wall of the water outlet 241 to bear the acting force of the rotary bolt 33 on the first block 321, so that the bolt 33 can be screwed, and at the same time, the acting force exerted on the hot melt adhesive is reduced, so that the hot melt adhesive can be stably bonded between the block piece 32 and the cross beam 2 before being softened by heat.

Referring to fig. 4, a first guiding gutter 312 is formed on the top surface of the bearing plate 31, the first guiding gutter 312 extends along the length direction of the bearing plate 31, and the distances from the central axis of the first guiding gutter 312 to the two sides of the bearing plate 31 are the same. The first diversion trench 312 is communicated with end faces of two ends of the bearing plate 31, and after water in the water storage cavity 21 falls on the bearing plate 31, the water is collected in a part of the first diversion trench 312 and can flow on the upright post 1 through a notch at the end part of the first diversion trench 312, so that the upright post 1 is continuously cooled.

Referring to fig. 4, each insertion hole 311 for the bolt 33 to pass through is formed in the bottom of the first diversion groove 312, the hole diameter of the insertion hole 311 is smaller than the width of the first diversion groove 312, and after the bolt 33 passes through the insertion hole 311, a distance may be formed between the bolt 33 and the inner side walls of the two sides of the first diversion groove 312, so that the bolt 33 is prevented from blocking the flow of water in the first diversion groove 312.

Referring to fig. 4, the top surface of the bearing plate 31 is further provided with two second guiding grooves 313 at intervals, the extending direction of the second guiding grooves 313 is parallel to the extending direction of the first guiding grooves 312, and the two second guiding grooves 313 are respectively located at two sides of the first guiding grooves 312. A plurality of flow dividing ports 314 are formed in one side of the second diversion trench 313 away from the first diversion trench 312, the flow dividing ports 314 are arranged at intervals along the extending direction of the first diversion trench 312, and the flow dividing ports 314 are communicated with the side wall of the bearing plate 31 on the same side. A plurality of diversion holes 315 are formed at the bottom of the second diversion trench 313, and the diversion holes 315 are also arranged at equal intervals along the extending direction of the second diversion trench 313 and are arranged in a staggered manner with the diversion port 314.

The water falling from the water storage cavity 21 is collected in the two second guiding grooves 313 and flows down from the side of the adapting plate 31 through each diversion opening 314, so that the water falling from the adapting plate 31 can be dispersed and more uniform. The diversion holes 315 are formed to increase the amount of water falling under the bearing plate 31.

Referring to fig. 1 and 4, a plurality of first hooks 25 are respectively arranged on two sides of the beam 2, the first hooks 25 are fixedly connected to the web 23 on the same side, and the plurality of hooks on the same side are arranged at intervals along the length direction of the beam 2. The two sides of the bearing plate 31 are fixedly connected with a plurality of second hooks 316, and the plurality of second hooks 316 on the same side are arranged at equal intervals along the length direction of the bearing plate 31 and correspond to the plurality of first hooks 25 on the same side of the cross beam 2 one by one. Before the bearing plate 31 is separated from the blocking piece 32, the second hook 316 on the bearing plate 31 is connected with the corresponding first hook 25 on the cross beam 2 by using a rope, after the bolts 33 are all screwed down, the bearing plate 31 can still be continuously suspended below the cross beam 2, and the bearing plate 31 can be saved from being lifted to a higher height when being mounted again.

The implementation principle of the embodiment of the application is as follows: compared with the conventional I-shaped steel, the water storage cavity 21 for storing water is separated by arranging the two spaced webs 23, and the water stored in the water storage cavity 21 can replace the cross beam 2 to absorb partial heat. When the condition of a fire appears, the hot melt adhesive receives the rising of temperature and bonding strength reduces, and shutoff piece 32 will drop from crossbeam 2 with accepting board 31, and the water in the water storage chamber 21 will be discharged from delivery port 241 this moment, and the supplementary fire extinguishing or reduction intensity of a fire that puts out a fire to before stand 1 and crossbeam 2 receive the temperature reach the critical value, have sufficient time to put out the fire, avoid stand 1 and crossbeam 2 to take place to warp and bearing capacity reduces, thereby reach the purpose of protection stand 1 and crossbeam 2.

After the plugging member 32 and the receiving plate 31 are separated from the beam 2, the plugging member 32 and the receiving plate 31 are suspended by the draw cord 41 in the beam 2, the first diversion groove 312 and the second diversion groove 313 on the receiving plate 31 can increase the area of the area where water is scattered, and the height of the receiving plate 31 which needs to be lifted can also be reduced when the plugging member 32 and the receiving plate 31 are installed on the beam 2 again. In addition, the stay cord 41 can ensure that the receiving plate 31 does not fall down and hit the pedestrian in the absence of fire.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a beam column structure of steel construction, includes stand (1) and installs crossbeam (2) on stand (1), its characterized in that: a water storage cavity (21) is formed in the cross beam (2) along the length direction of the cross beam, a plurality of water outlets (241) which are communicated with the water storage cavity (21) are formed in the bottom surface of the cross beam (2), and the water outlets (241) are arranged at intervals along the length direction of the cross beam (2); the bottom of the cross beam (2) is provided with an opening and closing assembly (3) for opening or closing the water outlets (241) simultaneously, the opening and closing assembly (3) comprises a bearing plate (31) which is attached to the bottom surface of the cross beam (2) and closes the water outlets (241) simultaneously, and the bearing plate (31) is bonded with the cross beam (2) through hot melt adhesive; a plurality of groups of hanging components (4) are arranged in the storage cavity corresponding to the water outlets (241), each hanging component (4) comprises a pull rope (41) which penetrates through the corresponding through hole and is connected between the inner wall of the water storage cavity (21) and the bearing plate (31), and the pull ropes (41) extend when the bearing plate (31) is far away from the cross beam (2).

2. The beam column structure of steel structure of claim 1, wherein: open and close subassembly (3) still including establishing a plurality of shutoff pieces (32) on accepting board (31), a plurality of shutoff pieces (32) and a plurality of delivery port (241) one-to-one, shutoff piece (32) are including first shutoff piece (321) and second shutoff piece (322), first shutoff piece (321) are connected with accepting board (31), second shutoff piece (322) are kept away from the one end of accepting board (31) with first shutoff piece (321) and are connected, and with delivery port (241) clearance fit that corresponds, stay cord (41) are connected with second shutoff piece (322), the cross section of first shutoff piece (321) is greater than the cross section of second shutoff piece (322).

3. The beam column structure of steel structure of claim 2, wherein: the bottom surface of crossbeam (2) is provided with holding tank (242) in the opening part of every delivery port (241), and holding tank (242) supply first shutoff piece (321) that correspond to inlay to establish, first shutoff piece (321) and holding tank (242) clearance fit that corresponds.

4. The beam column structure of steel structure of claim 3, wherein: each first plugging block (321) is connected with the bearing plate (31) through a bolt (33), and the bolt (33) penetrates through the bearing plate (31) and is in threaded connection with the first plugging block (321).

5. The beam column structure of steel structure of claim 4, wherein: the cross section of the second blocking block (322) is polygonal, and the water outlet (241) is arranged in a polygonal shape matched with the second blocking block (322).

6. The beam column structure of steel structure of claim 3, wherein: the bearing plate is characterized in that a first diversion trench (312) is formed in the top surface of the bearing plate (31), the first diversion trench (312) is communicated with the end faces of two ends of the bearing plate (31), second diversion trenches (313) are formed in two sides of the first diversion trench (312) on the bearing plate (31) at intervals respectively, a plurality of flow distribution ports (314) which are communicated with the side wall of the bearing plate (31) on the same side are formed in the second diversion trenches (313), and the flow distribution ports (314) are arranged at intervals along the extending direction of the second diversion trench (313).

7. The beam column structure of steel structure of claim 6, wherein: a plurality of shunting holes (315) are formed in the bottom of the second diversion trench (313), and the shunting holes (315) are arranged at intervals along the extending direction of the second diversion trench (313).

8. The beam column structure of steel construction as claimed in claim 7, wherein: the bottom of the first diversion trench (312) is provided with a jack (311) for a bolt (33) to pass through, and the width of the first diversion trench (312) is larger than the aperture of the jack (311).

9. The beam column structure of steel structure of claim 4, wherein: the two sides of the cross beam (2) are respectively provided with a plurality of first hooks (25), the two sides of the bearing plate (31) are respectively provided with a plurality of second hooks (316), and the plurality of second hooks (316) on one side of the bearing plate (31) are in one-to-one correspondence with the plurality of first hooks (25) on the same side of the cross beam (2).

10. The beam column structure of steel structure of claim 2, wherein: the suspension assembly (4) further comprises a rotating shaft (42) which is rotatably connected in the water storage cavity (21), one end of the pull rope (41) is fixedly connected with the rotating shaft (42), and the part of the pull rope (41) which is accommodated in the water storage cavity (21) is wound on the rotating shaft (42); the outer side of the cross beam (2) is also provided with a force application part (43) for rotating the rotating shaft (42).