CN220184738U

CN220184738U - Square-joint composite beam main joist supporting structure

Info

Publication number: CN220184738U
Application number: CN202321532418.8U
Authority: CN
Inventors: 付志红
Original assignee: Guangzhou Kuaiyi Template Engineering Co ltd
Current assignee: Guangzhou Kuaiyi Template Engineering Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2023-12-15
Anticipated expiration: 2033-06-15

Abstract

The utility model discloses a square composite beam main keel supporting structure which comprises a first keel, a second keel and a screw rod supporting device, wherein a keel supporting piece which is in contact with the bottom of the first keel and the bottom of the second keel is sleeved on the screw rod supporting device in a threaded manner, a fixed end screw rod locking device or a movable end screw rod locking device is arranged at the top of the keel supporting piece, and the fixed end screw rod locking device is fixedly sleeved on the outer side of the screw rod supporting device and simultaneously fixedly connects the first keel with the second keel; the movable end screw rod locking device is movably sleeved on the outer side of the screw rod supporting device and simultaneously fixedly connects the first keel with the second keel; the double-joist structure is adopted to effectively improve the side bending resistance, the weight ratio of the double-joist structure to the I-steel double-joist structure is more than 70% while the supporting bearing capacity is ensured, the double-joist structure is about 20% lighter than the steel pipe fastener combination at the bottom of the hard beam, and meanwhile, the connection function of the transverse pull rod is realized between the main joist and the supporting upright rod, so that the joist is more convenient and labor-saving to install, detach and adjust.

Description

Square-joint composite beam main joist supporting structure

Technical Field

The utility model belongs to the technical field of building construction, and relates to a square composite beam main keel supporting structure.

Background

The main beam keel structure is the most important bearing structure in the building support system, and generally the main beam keel structure needs to bear loads of several tons to tens of tons. The existing girder main joist structure directly adopts an I-steel double joist or a steel pipe fastener as a bearing joist. The bearing capacity on the existing I-steel double joist is good, but the bearing capacity of the side face is poor, once the load of the side face is received, the existing I-steel double joist can be subjected to lateral bending deformation, the weight of the I-steel double joist is up to more than 23kg, and the installation and the adjustment are complicated. The steel pipe fastener combination is fixed due to the connection structure between the existing keel structure and the supporting upright rod, but due to the fact that only a single steel pipe is stressed, and the anti-slip fastener is required to be installed, correction is very difficult to carry out in the process of pouring concrete, and serious potential safety hazards are very easy to cause. Moreover, the connection structure between the traditional beam main joist and the supporting upright post is complex in installation and troublesome in disassembly, and is very time-consuming and labor-consuming.

Therefore, the utility model discloses a square composite beam main keel supporting structure, which aims at the defects of insufficient side bending resistance and troublesome connection and disassembly of the existing beam main keel supporting structure.

Disclosure of Invention

The utility model aims to provide a square-through combined beam main joist supporting structure, which adopts a double joist structure to effectively improve the side bending resistance, ensures the supporting bearing capacity, simultaneously has a weight ratio of more than 70 percent compared with an I-steel double joist, is combined with a steel pipe fastener at the bottom of a hard beam by about 20 percent, and simultaneously has the connecting function of a transverse pull rod between a beam main joist and a supporting upright rod, so that the joist is more convenient and labor-saving to install, detach and adjust.

The utility model is realized by the following technical scheme:

the utility model provides a square-through composite beam main joist bearing structure, includes first fossil fragments and the second fossil fragments of parallel arrangement side by side, be provided with screw support device between first fossil fragments and the second fossil fragments, screw thread cover on the screw support device is the fossil fragments support piece with the bottom of first fossil fragments and the bottom contact of second fossil fragments simultaneously, the top of fossil fragments support piece is provided with stiff end lead screw locking device or expansion end lead screw locking device, stiff end lead screw locking device fixed cover is established in screw support device's outside and is connected fixedly first fossil fragments and second fossil fragments simultaneously; the movable end screw rod locking device is movably sleeved on the outer side of the screw rod supporting device and simultaneously fixedly connects the first keel with the second keel.

The keel support piece is sleeved on the screw rod support device in a threaded manner, and the height of the keel support piece can be flexibly adjusted by rotating the keel support piece, so that the support height of the keel is adjusted. The first keels and the second keels are arranged side by side and in parallel at the top of the keel support piece, and form a double-keel support structure, so that the side bending resistance of the integral keel structure can be effectively improved, and the side bearing capacity of the integral keel structure is effectively improved. Simultaneously, first fossil fragments and second fossil fragments pass through stiff end lead screw locking device or expansion end lead screw locking device and are connected with lead screw strutting arrangement, and stiff end lead screw locking device or the equal convenient detachable suit of expansion end lead screw locking device is in lead screw strutting arrangement's the outside, realizes convenient connection or dismantlement between fossil fragments and the lead screw strutting arrangement. Meanwhile, the fixed end screw rod locking device or the movable end screw rod locking device is used for connecting and fixing the first keel and the second keel, so that the connection stability between the first keel and the second keel is guaranteed, and the stability and the bearing capacity of the whole keel supporting structure are further improved.

In order to better realize the utility model, further, screw rod supporting devices are arranged between the two ends of the first keel and the second keel, the top of the screw rod supporting device at one end is provided with a fixed end screw rod locking device, and the top of the screw rod supporting device at the other end is provided with a movable end screw rod locking device.

In order to better realize the utility model, the fixed end screw locking device further comprises a connecting pin piece, a first fixing part and a second fixing part, wherein the connecting pin piece is arranged at the top of the first keel and the second keel; the two ends of the top of the connecting pin piece are respectively hinged with a first fixing part and a second fixing part, a fixing opening fixedly sleeved on the outer side of the screw rod supporting device is formed between the first fixing part and the second fixing part, and the free end of the first fixing part and the free end of the second fixing part are mutually clamped.

In order to better realize the utility model, further, two ends of the connecting pin piece are respectively provided with a bolt penetrating through the first keel and the second keel and connected with the keel support piece, the first fixing part comprises a first clamping arm, the connecting end of the first clamping arm is provided with a connecting hole, the connecting hole is rotationally sleeved on the outer side of the bolt, and the free end of the first clamping arm is provided with a first bayonet; the second fixing part comprises a second clamping arm, a connecting hole is formed in the connecting end of the second clamping arm, the connecting hole is rotationally sleeved on the outer side of the bolt, and a second bayonet is formed in the free end of the second clamping arm; the first bayonet and the second bayonet are clamped by a clamping block.

In order to better realize the utility model, further, a side surface pushing bolt pushing against the side surface of the first keel or the side surface of the second keel is arranged on the side surface of the connecting pin piece in a threaded manner, the first fixing part comprises a first half hoop fixedly arranged at the top of the connecting pin piece, the second fixing part comprises a second half hoop, one end of the first half hoop is hinged with one end of the second half hoop, and the other end of the first half hoop is clamped with the other end of the second half hoop through a bolt or a clamping block.

In order to better realize the utility model, the movable end screw rod locking device further comprises a connecting pin piece, a pressing pin piece and a U-shaped fixing part, wherein the connecting pin piece is arranged at the top of the first keel and the second keel, and two ends of the connecting pin piece are respectively provided with bolts penetrating through the first keel and the second keel and connected with the keel supporting piece; the movable opening sleeved on the outer side of the screw rod supporting device is arranged on the U-shaped fixing portion, the free end of the U-shaped fixing portion is in relative sliding connection with the top of the connecting pin piece, and the pressing pin piece which presses and locks the free end of the U-shaped fixing portion towards the connecting pin piece is arranged on the top of the U-shaped fixing portion.

In order to better realize the utility model, further, the free end of the U-shaped fixing part is provided with a sliding groove which is connected with the bolt in a sliding fit way.

In order to better realize the utility model, further, a keel auxiliary connecting piece is arranged between the first keel and the second keel, one end of the keel auxiliary connecting piece is fixedly connected with the first keel, and the other end of the keel auxiliary connecting piece is fixedly connected with the second keel.

In order to better realize the utility model, further, the auxiliary keel connecting piece comprises an auxiliary connecting pin piece, an auxiliary connecting lug piece, an auxiliary connecting bolt and an auxiliary connecting pin shaft, one end of the auxiliary connecting pin piece is lapped at the top of the first keel, the other end of the auxiliary connecting pin piece is lapped at the top of the second keel, two ends of the auxiliary connecting pin piece are respectively provided with the auxiliary connecting bolt which downwards penetrates through the first keel and the second keel, the bottoms of the auxiliary connecting bolts at the two ends are respectively sleeved with the auxiliary connecting lug pieces, the top of the auxiliary connecting lug pieces are contacted with the bottoms of the first keel or the second keel, and the auxiliary connecting lug pieces at the two ends are connected through the auxiliary connecting pin shaft.

In order to better realize the utility model, a beam wall support is arranged between the first keel and the second keel, and the beam wall support comprises at least one support part capable of being vertically lifted.

In order to better realize the utility model, the beam wall supporting piece further comprises a supporting plate, a transverse jacking bolt and a jacking screw rod, wherein the supporting plate is spanned on the top of the first keel and the second keel, the jacking screw rod is arranged on the region, between the first keel and the second keel, of the supporting plate in a threaded manner, and the top of the jacking screw rod is provided with a supporting part; one end of the supporting plate is provided with a first vertical plate contacted with the side surface of the first keel, and the other end of the supporting plate is provided with a second vertical plate parallel to the side surface of the second keel; and transverse jacking bolts are arranged on the first vertical plate and/or the second vertical plate along the direction of being horizontally perpendicular to the jacking screw rods in a threaded manner.

Compared with the prior art, the utility model has the following advantages:

(1) According to the utility model, the first keels and the second keels are arranged in parallel side by side at the two ends of the top of the keel support piece to form the double keel support structure, so that the bearing capacity of the keel support structure in the vertical direction is ensured, meanwhile, the bending resistance of the keel support structure on the side surface is effectively improved, and the situation that the keel support structure is bent and deformed when being subjected to lateral force can be effectively avoided;

(2) According to the utility model, the fixed end screw rod locking device or the movable end screw rod locking device is arranged between the first keel and the second keel, and the first keel and the second keel are fixedly connected through the fixed end screw rod locking device or the movable end screw rod locking device, so that the stability of the keel supporting structure is further improved; meanwhile, the screw rod locking device at the fixed end is detachably and fixedly sleeved on the outer side of the screw rod supporting device, so that the convenient and fast fixation between the keel and the screw rod supporting device is realized; the movable end screw rod locking device is detachably and relatively movably sleeved on the outer side of the screw rod supporting device, so that the convenient and fast fixation between the keel and the screw rod supporting device is realized, meanwhile, the keel side bending deformation can be relatively and relatively moved with the screw rod supporting device, and further, the severe deformation or fracture of a joint structure between the keel and the screw rod supporting device is avoided, and the safety of the whole keel supporting structure is further ensured;

(3) According to the utility model, the auxiliary keel connecting piece is arranged between the first keel and the second keel, and the first keel and the second keel are fixedly connected through the auxiliary keel connecting piece, so that the stability and the lateral bending resistance of the keel supporting structure are further improved;

(4) According to the utility model, the beam wall supporting piece with flexibly adjustable height is arranged between the first keel and the second keel, so that the supporting of the top beam plate can be realized through the beam wall supporting piece, and the supporting height of the top beam plate can be flexibly adjusted.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an assembly schematic of a fixed end lead screw locking device;

FIG. 3 is an exploded view of a fixed end lead screw locking device;

FIG. 4 is an assembled schematic view of the movable end screw locking device;

FIG. 5 is an exploded view of the movable end screw locking device;

figure 6 is a schematic view of the assembly of the keel auxiliary connector;

fig. 7 is an exploded view of the keel auxiliary connector;

FIG. 8 is a schematic view of the structure of a beam wall support;

FIG. 9 is a schematic structural view of a fixed end lead screw locking device;

fig. 10 is a schematic view of the support of the first keel and the second keel.

Wherein: 1-a lead screw supporting device; 2-keel supports; 3-a fixed end screw rod locking device; 4-a movable end screw locking device; 5-keel auxiliary connection; 6-beam wall supports; 31-a first fixing portion; 32-a second fixing portion; 41-pressing pin pieces; 42-U-shaped fixing part; 51-auxiliary connecting pin pieces; 52-auxiliary connecting lugs; 53-auxiliary connection bolts; 54-auxiliary connecting pin shafts; 61-supporting the plate; 62-laterally tightening the bolts; 63-lifting the screw; 100-a first keel; 200-second keel.

Detailed Description

Example 1:

the main keel supporting structure of the square composite beam of the embodiment comprises a first keel 100 and a second keel 200 which are arranged side by side in parallel, wherein a screw rod supporting device 1 is arranged between the first keel 100 and the second keel 200, a keel supporting piece 2 which is simultaneously contacted with the bottom of the first keel 100 and the bottom of the second keel 200 is sleeved on the screw rod supporting device 1 in a threaded manner, a fixed end screw rod locking device 3 or a movable end screw rod locking device 4 is arranged at the top of the keel supporting piece 2, and the fixed end screw rod locking device 3 is fixedly sleeved on the outer side of the screw rod supporting device 1 and simultaneously fixedly connected with the first keel 100 and the second keel 200; the movable end screw locking device 4 is movably sleeved on the outer side of the screw supporting device 1 and simultaneously connects and fixes the first keel 100 and the second keel 200.

The top center department of fossil fragments support piece 2 is provided with the screw hole, and the screw hole is connected with the support screw thread suit in the lead screw strutting arrangement 1, can adjust fossil fragments support piece 2's mounting height through rotating fossil fragments support piece 2, and then adjusts fossil fragments's mounting height for whole fossil fragments bearing structure can satisfy different supporting height demands. The top of fossil fragments support piece 2 is the holding surface, and the both ends of holding surface are parallel arrangement respectively side by side has first fossil fragments 100 and second fossil fragments 200, and first fossil fragments 100 link firmly with screw support device 1 through stiff end screw locking device 3 or expansion end screw locking device 4, stiff end screw locking device 3 directly can dismantle fixed suit in screw support device 1's the outside, expansion end screw locking device 4 directly can dismantle the activity suit in screw support device 1's the outside for certain adjustment allowance has between expansion end screw locking device 4 and the screw support device 1, and then can carry out convenient fine setting to the mounted position of fossil fragments. The fixed end screw locking device 3 and the movable end screw locking device 4 are connected with the screw supporting device 1, and meanwhile the fixed end screw locking device 3 and the movable end screw locking device 4 are used for connecting the first keel 100 and the second keel 200 with each other, so that the first keel 100 and the second keel 200 form a fixedly connected integral structure, the bearing capacity of the keel supporting structure is further improved, and the side bending resistance of the keel supporting structure is particularly greatly improved.

Because the fixed end screw locking device 3 and the movable end screw locking device 4 are sleeved on the outer side of the screw supporting device 1, a certain relative movement allowance is ensured among the fixed end screw locking device 3, the movable end screw locking device 4 and the screw supporting device 1, and even if the keel supporting structure is subjected to side bending deformation, the relative movement among the fixed end screw locking device 3, the movable end screw locking device 4 and the screw supporting device 1 can be buffered, so that the severe deformation or fracture of the connecting structure among the keels and the screw supporting device 1 is avoided.

Example 2:

the present embodiment is further optimized based on the above embodiment 1, as shown in fig. 1, screw supporting devices 1 are disposed between two ends of the first keel 100 and the second keel 200, a fixed end screw locking device 3 is disposed at the top of the screw supporting device 1 at one end, and a movable end screw locking device 4 is disposed at the top of the screw supporting device 1 at the other end.

One end of the first keel 100 is a connecting end, and the other end is a movable end; one end of the second keel 200 is a connecting end and the other end is a movable end. A fixed end screw locking device 3 is arranged between the connecting end of the first keel 100 and the connecting end of the second keel 200, and the fixed end screw locking device 3 is used for holding and sleeving the outer side of the screw supporting device 1, so that the connecting ends of the first keel 100 and the second keel 200 are fixed. The movable end screw locking device 4 is arranged between the movable end of the first keel 100 and the movable end of the second keel 200, the movable end screw locking device 4 is sleeved outside the screw supporting device 1 in a holding mode, a certain activity allowance is reserved, and when the movable ends of the first keel 100 and the second keel 200 are fixed, the movable ends of the first keel 100 and the second keel 200 are enabled to move relatively with the screw supporting device 1 when the side faces of the first keel 100 and the second keel 200 are stressed to bend and deform, and therefore the side bending resistance of the keel supporting structure is improved.

Other portions of this embodiment are the same as those of embodiment 1, and thus will not be described in detail.

Example 4:

the present embodiment is further optimized on the basis of any one of the above embodiments 1 to 3, as shown in fig. 1 to 3, the fixed end screw locking device 3 includes a connecting pin piece, a first fixing portion 31 and a second fixing portion 32, the connecting pin piece is disposed on top of the first keel 100 and the second keel 200, and two ends of the connecting pin piece are respectively provided with bolts penetrating through the first keel 100 and the second keel 200 and being connected with the keel support 2; the two ends of the top of the connecting pin piece are respectively hinged with a first fixing part 31 and a second fixing part 32, a fixing opening fixedly sleeved on the outer side of the screw rod supporting device 1 is formed between the first fixing part 31 and the second fixing part 32, and the free ends of the first fixing part 31 and the free ends of the second fixing part 32 are mutually clamped.

Be provided with the through-hole that supplies the bolt to pass on the connecting pin piece, the linear interval is provided with a plurality of fixed orificess on first fossil fragments 100 and the second fossil fragments 200, is provided with the via hole that supplies the bolt to pass on the fossil fragments support piece 2, places the connecting pin piece at the top of first fossil fragments 100 and second fossil fragments 200 to cartridge bolt in the through-hole, fixed orifices, the via hole of registering, then through the nut with the fixed locking of bolt, and then realize the solid of first fossil fragments 100 and second fossil fragments 200 through connecting pin piece, bolt.

The connecting end of the first fixing part 31 is provided with a connecting hole, the connecting hole is rotationally sleeved outside the bolt, and the free end of the first fixing part 31 is provided with a first bayonet; the connecting end of the second fixing part 32 is provided with a connecting hole, the connecting hole is rotationally sleeved outside the bolt, and the free end of the second fixing part 32 is provided with a second bayonet; the first bayonet and the second bayonet are clamped by a clamping block. The first fixing portion 31 and the second fixing portion 32 can rotate around the bolt, so that the size of the fixing opening between the first fixing portion 31 and the second fixing portion 32 can be adjusted to adapt to screw rod supporting devices 1 with different diameters. After the adjustment of the first fixing portion 31 and the second fixing portion 32 is completed, that is, when the inner side surface of the fixing opening formed by the first fixing portion 31 and the second fixing portion 32 is tightly attached to the screw rod supporting device 1, the first bayonet at the free end of the first fixing portion 31 and the second bayonet at the free end of the second fixing portion 32 can be clamped and connected through the clamping block at this time, so that the fixing opening formed by the first fixing portion 31 and the second fixing portion 32 is relatively fixed and sleeved on the outer side of the screw rod connecting device 1, and the keel and the screw rod connecting device 1 are fixedly connected.

As shown in fig. 2 and 3, two ends of the connecting pin piece are respectively provided with a bolt penetrating through the first keel 100 and the second keel 200 and being connected with the keel support 2, the first fixing part 31 comprises a first clamping arm, the connecting end of the first clamping arm is provided with a connecting hole, the connecting hole is rotationally sleeved on the outer side of the bolt, and the free end of the first clamping arm is provided with a first bayonet; the second fixing portion 32 includes a second clamping arm, a connecting hole is provided at a connecting end of the second clamping arm, the connecting hole is rotatably sleeved at an outer side of the bolt, and a second bayonet is provided at a free end of the second clamping arm; the first bayonet and the second bayonet are clamped by a clamping block.

As shown in fig. 9, the side surface of the connecting pin piece is provided with a side surface tightening bolt for tightening the side surface of the first keel 100 or the side surface of the second keel 200 in a threaded manner, the first fixing portion 31 comprises a first half hoop fixedly arranged at the top of the connecting pin piece, the second fixing portion 32 comprises a second half hoop, one end of the first half hoop is hinged with one end of the second half hoop, and the other end of the first half hoop is in clamping connection with the other end of the second half hoop through a bolt or a clamping block.

Other portions of this embodiment are the same as any of embodiments 1 to 3, and thus will not be described in detail.

Example 5:

the embodiments are further optimized on the basis of any one of the above embodiments 1 to 4, as shown in fig. 1, 4 and 5, the movable end screw locking device 4 includes a connecting pin piece, a pressing pin piece 41 and a U-shaped fixing portion 42, the connecting pin piece is arranged on the top of the first keel 100 and the second keel 200, and two ends of the connecting pin piece are respectively provided with bolts penetrating through the first keel 100 and the second keel 200 and being connected with the keel support 2; the U-shaped fixing part 42 is provided with a movable opening sleeved outside the screw rod supporting device 1, the free end of the U-shaped fixing part 42 is in relative sliding connection with the top of the connecting pin piece, and the top of the U-shaped fixing part 42 is provided with a pressing pin piece 41 for pressing and locking the free end of the U-shaped fixing part 42 towards the connecting pin piece. The free end of the U-shaped fixing part 42 is provided with a chute which is connected with the bolt in a sliding fit manner.

The U-shaped fixing part 42 is pressed on the top of the connecting pin piece, and the two free ends of the opening of the U-shaped fixing part 42 are respectively provided with a sliding groove corresponding to the bolts at the two ends, the U-shaped fixing part 42 is sleeved on the outer side of the screw rod supporting device 1, and the sliding grooves on the free ends of the U-shaped fixing part 42 are matched and slidably connected with the bolts. The compression pin piece 41 is pressed at the top of the U-shaped fixing part 42, through holes or through grooves for the bolts to pass through are formed in the two ends of the compression pin piece 41, the bolts are fixedly locked through nuts, the compression pin piece 41 is further pressed downwards to fix the U-shaped fixing part 42, connection between a keel and the screw rod supporting device 1 is achieved, and the movable allowance reserved between the U-shaped fixing part 42 and the screw rod supporting device 1 is reserved, so that the screw rod supporting device 1 can be moved to a certain extent during lateral bending of the keel, and severe deformation or fracture of a connecting structure is avoided.

Example 6:

this embodiment is further optimized based on any one of the above embodiments 1 to 5, as shown in fig. 1, 6 and 7, a keel auxiliary connection piece 5 is disposed between the first keel 100 and the second keel 200, one end of the keel auxiliary connection piece 5 is fixedly connected with the first keel 100, and the other end of the keel auxiliary connection piece 5 is fixedly connected with the second keel 200.

The first keel 100 and the second keel 200 are further fixedly connected through the keel auxiliary connecting piece 5, so that the integral rigidity of the first keel 100 and the second keel 200 is ensured, and meanwhile, the bending resistance of the first keel 100 and the second keel 200 is effectively improved.

Further, the auxiliary keel connecting piece 5 comprises an auxiliary connecting pin piece 51, an auxiliary connecting lug piece 52, an auxiliary connecting bolt 53 and an auxiliary connecting pin shaft 54, one end of the auxiliary connecting pin piece 51 is lapped at the top of the first keel 100, the other end of the auxiliary connecting pin piece 51 is lapped at the top of the second keel 200, two ends of the auxiliary connecting pin piece 51 are respectively provided with the auxiliary connecting bolt 53 which downwards penetrates through the first keel 100 and the second keel 200, the bottoms of the auxiliary connecting bolts 53 at two ends are respectively sleeved with the auxiliary connecting lug pieces 52, the top of the auxiliary connecting lug pieces 52 is contacted with the bottoms of the first keel 100 or the second keel 200, and the auxiliary connecting lug pieces 52 at two ends are connected through the auxiliary connecting pin shaft 54.

The auxiliary connection pin pieces 51 are press-fitted on the tops of the first and second keels 100 and 200, and through holes through which bolts pass are provided at both ends of the tops of the auxiliary connection pin pieces 51, in which auxiliary connection bolts 53 are inserted. A plurality of fixing holes are arranged on the first keel 100 and the second keel 200 at linear intervals, through holes for the auxiliary connecting bolts 53 to pass through are formed in the auxiliary connecting lugs 52, the auxiliary connecting bolts 53 sequentially pass through the through holes, the fixing holes and the through holes, and then the auxiliary connecting bolts 53 can be locked and fixed through threaded sleeve nuts on the auxiliary connecting bolts 53, so that the auxiliary connecting pin pieces 51 are matched with the auxiliary connecting lugs 52 to connect and fix the first keel 100 and the second keel 200, and the stability and the bending resistance of a keel supporting structure are further improved.

Other portions of this embodiment are the same as any of embodiments 1 to 5 described above, and thus will not be described again.

Example 7:

this embodiment is further optimized on the basis of any one of the above embodiments 1 to 6, and as shown in fig. 1 and 8, a beam wall support 6 is disposed between the first keel 100 and the second keel 200, where the beam wall support 6 includes at least one support portion capable of being vertically lifted.

The beam wall support 6 is used for supporting the top beam plate, and the beam wall support 6 comprises at least one support part capable of vertically jacking and adjusting the supporting height, and the top beam plate can be supported by the support part in a highly flexible fine adjustment mode.

Further, the beam wall support 6 comprises a support plate 61, a transverse jacking bolt 62 and a jacking screw 63, wherein the support plate 61 is spanned on the top of the first keel 100 and the second keel 200, the jacking screw 63 is installed on the support plate 61 in a threaded manner in the area between the first keel 100 and the second keel 200, and a support part is arranged on the top of the jacking screw 63; one end of the support plate 61 is provided with a first riser in contact with the side surface of the first keel 100, and the other end of the support plate 61 is provided with a second riser parallel to the side surface of the second keel 200; the first vertical plate and/or the second vertical plate are/is provided with a transverse jacking bolt 62 in a threaded manner along the direction horizontal and vertical to the jacking screw 63.

The backup pad 61 strides the top of dress at first fossil fragments 100 and second fossil fragments 200, through rotating horizontal jack bolt 62 for horizontal jack bolt 62 is tight with the side top of first fossil fragments 100 or second fossil fragments 200, and then realizes the convenient fixed of backup pad 61. The top center department of backup pad 61 is provided with the regulation screw hole, installs jacking screw 63 in the regulation screw hole screw thread, and the top of jacking screw 63 is provided with backup pad or supporting shoe and constitutes the supporting part, through rotating jacking screw 63, and then adjusts the jacking height of jacking screw 63, and then adjusts the supporting part to the supporting height of top beam plate.

Other portions of this embodiment are the same as any of embodiments 1 to 6 described above, and thus will not be described again.

The above is only a preferred embodiment of the present utility model, and the present utility model is not limited in any way, and any simple modification and equivalent changes of the above embodiments according to the technical substance of the present utility model fall within the protection scope of the present utility model.

Claims

1. The utility model provides a square-through composite beam main joist bearing structure, includes first fossil fragments (100) and second fossil fragments (200) of parallel arrangement side by side, its characterized in that, be provided with lead screw strutting arrangement (1) between first fossil fragments (100) and second fossil fragments (200), screw thread cover is equipped with fossil fragments strutting piece (2) with the bottom of first fossil fragments (100) and the bottom contact of second fossil fragments (200) simultaneously on lead screw strutting arrangement (1), the top of fossil fragments strutting piece (2) is provided with stiff end lead screw locking device (3) or expansion end lead screw locking device (4), stiff end lead screw locking device (3) fixed cover is established in the outside of lead screw strutting arrangement (1) and is connected fixedly first fossil fragments (100) and second fossil fragments (200) simultaneously; the movable end screw rod locking device (4) is movably sleeved on the outer side of the screw rod supporting device (1) and simultaneously connects and fixes the first keel (100) and the second keel (200).

2. The square composite beam main joist supporting structure according to claim 1, wherein screw supporting devices (1) are arranged between two ends of the first joist (100) and the second joist (200), a fixed end screw locking device (3) is arranged at the top of the screw supporting device (1) at one end, and a movable end screw locking device (4) is arranged at the top of the screw supporting device (1) at the other end.

3. The main keel support structure of the square composite beam according to claim 2, wherein the fixed end screw locking device (3) comprises a connecting pin piece, a first fixing part (31) and a second fixing part (32), and the connecting pin piece is arranged at the top of the first keel (100) and the second keel (200); the two ends at the top of the connecting pin piece are respectively hinged with a first fixing part (31) and a second fixing part (32), a fixing opening fixedly sleeved outside the screw rod supporting device (1) is formed between the first fixing part (31) and the second fixing part (32), and the free end of the first fixing part (31) is clamped with the free end of the second fixing part (32).

4. A main keel support structure of a square composite beam according to claim 3, wherein two ends of the connecting pin piece are respectively provided with a bolt penetrating through the first keel (100) and the second keel (200) and being connected with the keel support (2), the first fixing part (31) comprises a first clamping arm, the connecting end of the first clamping arm is provided with a connecting hole, the connecting hole is rotationally sleeved on the outer side of the bolt, and the free end of the first clamping arm is provided with a first bayonet; the second fixing part (32) comprises a second clamping arm, a connecting hole is formed in the connecting end of the second clamping arm, the connecting hole is rotationally sleeved on the outer side of the bolt, and a second bayonet is formed in the free end of the second clamping arm; the first bayonet and the second bayonet are clamped by a clamping block.

5. A main girder supporting structure of a square composite girder according to claim 3, wherein a side tightening bolt for tightening a side of a first girder (100) or a side of a second girder (200) is screw-mounted on a side of the connecting pin sheet, the first fixing portion (31) comprises a first half hoop fixedly arranged at the top of the connecting pin sheet, the second fixing portion (32) comprises a second half hoop, one end of the first half hoop is hinged to one end of the second half hoop, and the other end of the first half hoop is clamped with the other end of the second half hoop through a bolt or a clamping block.

6. The main joist supporting structure of square composite girder according to claim 2, wherein the movable end screw locking device (4) comprises a connecting pin piece, a pressing pin piece (41) and a U-shaped fixing part (42), the connecting pin piece is arranged at the top of the first joist (100) and the second joist (200), and two ends of the connecting pin piece are respectively provided with bolts penetrating through the first joist (100) and the second joist (200) and connected with the joist supporting piece (2); the movable opening sleeved outside the screw rod supporting device (1) is arranged on the U-shaped fixing portion (42), the free end of the U-shaped fixing portion (42) is in relative sliding connection with the top of the connecting pin piece, and the top of the U-shaped fixing portion (42) is provided with a pressing pin piece (41) for pressing and locking the free end of the U-shaped fixing portion (42) towards the connecting pin piece.

7. The main joist support structure of a square composite girder according to claim 6, wherein a free end of said U-shaped fixing portion (42) is provided with a sliding groove, said sliding groove being slidably coupled to a bolt.

8. A main keel support structure of a square composite girder according to any of the claims 1-7, wherein a keel auxiliary connecting piece (5) is arranged between the first keel (100) and the second keel (200), one end of the keel auxiliary connecting piece (5) is fixedly connected with the first keel (100), and the other end of the keel auxiliary connecting piece (5) is fixedly connected with the second keel (200).

9. The square composite girder main joist supporting structure according to claim 8, wherein the joist auxiliary connecting piece (5) comprises an auxiliary connecting pin piece (51), an auxiliary connecting lug piece (52), an auxiliary connecting bolt (53) and an auxiliary connecting pin shaft (54), one end of the auxiliary connecting pin piece (51) is lapped at the top of the first joist (100), the other end of the auxiliary connecting pin piece (51) is lapped at the top of the second joist (200), two ends of the auxiliary connecting pin piece (51) are respectively provided with an auxiliary connecting bolt (53) penetrating downwards through the first joist (100) and the second joist (200), the bottoms of the auxiliary connecting bolts (53) at two ends are respectively sleeved with an auxiliary connecting lug piece (52), the top of the auxiliary connecting lug piece (52) is contacted with the bottom of the first joist (100) or the second joist (200), and the auxiliary connecting lugs (52) at two ends are connected through the auxiliary connecting pin shaft (54).

10. A square composite girder main keel support structure according to any of the claims 1-7, wherein a girder wall support (6) is arranged between the first keel (100) and the second keel (200), said girder wall support (6) comprising at least one support part which can be vertically lifted.