Disclosure of utility model
The utility model solves the problem of how to improve the construction efficiency of the I-steel connection process.
In order to solve the above problems, the present utility model provides an i-steel connecting device.
The utility model provides an I-steel connecting device, which comprises a bearing tool and a clamp, wherein the bearing tool comprises a bearing plate, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are sequentially arranged on the bottom surface of the bearing plate along a first direction, the first connecting plate and the second connecting plate are respectively perpendicular to the bearing plate, a girder I-steel is arranged between the first connecting plate and the second connecting plate in a penetrating mode, the first connecting plate and the second connecting plate are respectively connected with transverse stiffening ribs on two sides of the girder I-steel, the clamp comprises a first connecting component and a second connecting component, the first connecting component and the second connecting component are sequentially arranged on the top surface of the bearing plate along a second direction, a secondary girder I-steel is arranged between the first connecting component and the second connecting component in a penetrating mode, the first connecting component and the second connecting component are respectively connected with two sides of a web of the secondary girder I-steel, and the first direction, the second direction and the vertical direction are perpendicular to each other. .
Optionally, the transverse stiffening ribs on two sides of the girder I-steel comprise a first transverse stiffening rib and a second transverse stiffening rib which are symmetrically arranged, a first side lug extends from one side of the first connecting plate, which is close to the second connecting plate, and the first side lug is connected with the first transverse stiffening rib.
Optionally, the first side ear and the first transverse stiffener are connected by a bolt.
Optionally, a second side ear extends from a side of the second connecting plate, which is close to the first connecting plate, and the second side ear is connected with the second transverse stiffening rib.
Optionally, the second side ear and the second transverse stiffener are connected by a bolt.
Optionally, the first coupling assembling includes first bottom plate, first linking arm and first splint, the bottom surface of first bottom plate with the top surface of carrier plate is connected, the top surface of first bottom plate with the one end of first linking arm is connected, the other end of first linking arm is to being close to the direction of second coupling assembling extends the third linking arm, the one end of third linking arm with the one side of first splint is connected, the another side of first splint be used for with one side of the web of secondary beam I steel is connected.
Optionally, the device further includes a first connecting piece, the first connecting piece includes a first bolt and a first nut, a first through hole is provided on the first bottom plate, a second through hole is provided on the carrier plate, and the first bolt is connected with the first nut after passing through the first through hole and the second through hole respectively.
Optionally, the second coupling assembling includes second bottom plate, second linking arm and second splint, the bottom surface of second bottom plate with the top surface of carrier plate is connected, the top surface of second bottom plate with the one end of second linking arm is connected, the other end of second linking arm is to being close to the direction of first coupling assembling extends the fourth linking arm, the one end of fourth linking arm with the one side of second splint is connected, the another side of second splint be used for with the opposite side of the web of secondary beam I-steel is connected, first splint with the second splint is in the position phase-match of the both sides of the web of secondary beam I-steel.
Optionally, the device further includes a second connecting piece, the second connecting piece includes second bolt and second nut, be provided with the third through-hole on the second bottom plate, be provided with the rectangle through-hole on the carrier plate, the length direction of rectangle through-hole is along the second direction, the width of rectangle through-hole with the diameter of third through-hole matches, the second bolt passes respectively the rectangle through-hole with behind the third through-hole with the second nut is connected.
Optionally, the device further comprises a third connecting piece, the third connecting piece comprises a third bolt and a third nut, the first clamping plate is provided with a fourth through hole, the second clamping plate is provided with a fifth through hole, the web of the secondary beam is provided with a sixth through hole, and the third bolt is in threaded connection with the third nut after passing through the fourth through hole, the sixth through hole and the fifth through hole respectively.
The I-steel connecting device has the beneficial effects that the bearing device is connected with the transverse stiffening ribs on two sides of the girder I-steel through the first connecting plate and the second connecting plate, so that the lateral rigidity of the girder I-steel can be effectively enhanced, the whole structure system is more stable when being stressed transversely, meanwhile, the space is formed between the first connecting plate and the second connecting plate of the bearing device, and the girder I-steel can be directly penetrated in the space, so that the girder I-steel is accurately positioned through the first connecting plate and the second connecting plate, the time for repeatedly adjusting the position of the girder I-steel on site is reduced, constructors do not need to spend a great deal of effort to calibrate the installation position of the girder I-steel, the primary assembly of the girder part can be rapidly completed, and the construction process is accelerated. The clamp is connected with two sides of the secondary beam I-steel web by means of the first connecting component and the second connecting component, the secondary beam I-steel is firmly fixed, so that the main beam Liang Gongzi steel and the secondary beam I-steel form a stable connection relation, the rigidity of the structure body is improved in all directions, the complex external force is sufficiently met, the structural deformation risk is reduced, the space for adapting the secondary beam I-steel is reserved between the first connecting component and the second connecting component of the clamp, the secondary beam I-steel can be quickly positioned according to a preset position, complex measurement and adjustment are not needed, the main beam I-steel and the secondary beam I-steel are quickly and accurately connected by the I-steel connecting device, the construction step can be simplified relative to the direct welding of the main beam I-steel and the secondary beam I-steel, the integral installation efficiency is improved, the connected main beam I-steel and the secondary beam I-steel are axially perpendicular, the borne force can be transmitted along the most reasonable path, the concentration and unreasonable torsion of the evasion force is maintained, the probability of damage of the key parts due to uneven stress is reduced, and the long-term safe use is ensured.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. While the utility model is susceptible of embodiment in the drawings, it is to be understood that the utility model may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided to provide a more thorough and complete understanding of the utility model. It should be understood that the drawings and embodiments of the utility model are for illustration purposes only and are not intended to limit the scope of the present utility model.
The term "comprising" and variations thereof as used herein is meant to be open-ended, i.e., "including but not limited to," based at least in part on, "one embodiment" means "at least one embodiment," another embodiment "means" at least one additional embodiment, "some embodiments" means "at least some embodiments," and "optional" means "optional embodiment. Related definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in this disclosure are only used to distinguish between different devices, modules or units, and are not intended to limit the order or interdependence of functions performed by these devices, modules or units.
It should be noted that references to "a" and "an" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.
In the related art, in the use process of engineering, for example, the construction of field temporary structures such as a safety protection shed, an operation platform and the like, the up-down lap joint connection of the I-steel is quite common, and the current connection of the I-steel main beam and the secondary beam is usually in a welding mode. However, there may be many drawbacks in the welding manner, for example, when a large number of connection works are needed, since the welding works are special works, a large number of specialized workers are needed to perform the work, the welding process also consumes a large amount of time and effort, the welding seam always bears complex external force in the subsequent use stage, the risk of pulling crack is high, the construction efficiency and the safety of the i-steel construction are seriously affected, and a large number of specialized workers also consume a long time to disassemble in the disassembly process.
In view of the above problems associated with the related art, the present utility model provides an i-beam connecting device.
As shown in fig. 1 and 2, the i-beam connecting device provided by the embodiment of the utility model comprises a bearing 1 and a clamp 2, wherein the bearing 1 comprises a bearing plate 11, a first connecting plate 12 and a second connecting plate 14, the bottom surface of the bearing plate 11 is sequentially provided with the first connecting plate 12 and the second connecting plate 14 along a first direction, the first connecting plate 12 and the second connecting plate 14 are respectively perpendicular to the bearing plate 11, a girder i-beam 3 is arranged between the first connecting plate 12 and the second connecting plate 14 in a penetrating way, the first connecting plate 12 and the second connecting plate 14 are respectively connected with transverse stiffening ribs on two sides of the girder i-beam 3, the clamp 2 comprises a first connecting assembly 21 and a second connecting assembly 22, the first connecting assembly 21 and the second connecting assembly 22 are respectively arranged on the top surface of the bearing plate 11 along a second direction in sequence, a girder 4 is respectively arranged between the first connecting assembly 21 and the second connecting assembly 22 in a penetrating way, and the first connecting assembly 21 and the second connecting assembly 22 are respectively used for connecting the girder i-beam 4 along the first direction and the second direction.
When two I-beams are connected, the I-beam positioned below is used as a main beam I-beam 3, the I-beam overlapped above the main beam I-beam 3 is used as a secondary beam I-beam 4, wherein the axial direction of the secondary beam I-beam 4 is a first direction, the axial direction of the main beam I-beam 3 is a second direction, and the first direction is vertical to the second direction due to the fact that the I-beams are intersected by a cross, and the first direction, the second direction and the vertical direction are vertical to each other.
Specifically, the I-steel connecting device comprises a bearing 1 and a clamp 2, wherein the bearing 1 comprises a bearing plate 11, a first connecting plate 12 and a second connecting plate 14, the bearing plate 11 serves as a basic component of the whole device, plays a role in bearing and connecting other components, and the bearing plate 11 is a flat plate surface and provides a stable supporting plane for the installation of subsequent components. The first connecting plate 12 and the second connecting plate 14 are sequentially arranged on the bottom surface of the bearing plate 11 along the first direction in a posture perpendicular to the bearing plate 11, and meanwhile, the first connecting plate 12 and the second connecting plate 14 can be located on the same plane, so that the first connecting plate 12 and the second connecting plate are conveniently attached to and connected with transverse stiffening ribs symmetrically arranged on two sides of the girder I-steel 3 respectively. The interval that forms between first connecting plate 12 and the second connecting plate 14 can be convenient for girder I-steel 3 wears to establish to can be fast accurate location girder I-steel 3, ensure girder I-steel 3 mounted position's accuracy and stability. And, the first connecting plate 12 and the second connecting plate 14 can be respectively connected with transverse stiffening ribs on two sides of the girder I-steel 3, for example, through locking pieces, wherein the transverse stiffening ribs are structures for enhancing the lateral rigidity of the girder I-steel 3, and are connected with the transverse stiffening ribs, so that the whole structure system can be more stable when being transversely stressed, the force is more uniformly dispersed, and the whole bearing capacity is improved. The fixture 2 comprises a first connecting component 21 and a second connecting component 22, the first connecting component 21 and the second connecting component 22 are sequentially arranged on the top surface of the carrier plate 11 along the second direction, and a space for penetrating the secondary beam I-steel 4 is reserved between the first connecting component 21 and the second connecting component 22, so that the secondary beam I-steel 4 can be arranged in place according to a preset position for fixing. And link to each other with the both sides of secondary beam I-steel 4 web respectively through first coupling assembling 21 and second coupling assembling 22, for example, connect through the retaining member, secondary beam I-steel 4 web is the important position that bears vertical shear force, and anchor clamps 2 are connected from the both sides of web through first coupling assembling 21 and second coupling assembling 22, can firmly fix secondary beam I-steel 4 wherein to ensure that secondary beam I-steel 4 forms firm relation of connection with bearing 1 and girder I-steel 3. Because the first direction, the second direction are perpendicular to the vertical direction in pairs, namely, the connected girder I-steel 3 and the secondary girder I-steel 4 are perpendicular, the force can be transmitted along the most reasonable and direct path, the concentration of the force or the unreasonable torsion is avoided, the construction of a stable and high-efficiency stressed structure body is facilitated, and the structural safety can be ensured by means of the reasonable framework no matter bearing vertical gravity load or horizontal wind load, earthquake force and other lateral forces.
In this embodiment, hold and take 1 to be connected with the transverse stiffening rib on girder I-steel 3 both sides through first connecting plate 12, second connecting plate 14, can effectively strengthen girder I-steel 3 side direction rigidity, make whole structure system more firm when horizontal atress, form the space between first connecting plate 12 and the second connecting plate 14 through holding 1 simultaneously, girder I-steel 3 can directly wear to establish wherein, thereby carry out accurate location to girder I-steel 3 through first connecting plate 12 and second connecting plate 14, the time of on-the-spot repeatedly adjusting girder I-steel 3 position has been reduced, constructor need not to spend a large amount of efforts to calibrate its mounted position, can accomplish the preliminary assembly of girder part rapidly, accelerate the efficiency of construction. The clamp 2 is connected with two sides of the web of the secondary beam I-steel 4 by means of the first connecting component 21 and the second connecting component 22, and the secondary beam I-steel 4 is firmly fixed, so that the main beam Liang Gongzi steel 3 and the secondary beam I-steel 4 form a stable connection relationship, the rigidity of the structure is improved in all directions, the structural deformation risk is reduced, the space for adapting the secondary beam I-steel 4 is reserved between the first connecting component 21 and the second connecting component 22 of the clamp 2, the secondary beam I-steel 4 can be quickly positioned according to a preset position, complex measurement and adjustment are not needed, the main beam I-steel 3 and the secondary beam I-steel 4 are quickly and accurately connected by the I-steel connecting device, the construction step can be simplified compared with the process of directly welding the main beam I-steel 3 and the secondary beam I-steel 4, the integral installation efficiency is improved, and the connected main beam I-steel 3 and the secondary beam I-steel 4 are mutually perpendicular in the first direction and the second direction, so that the born force can be transmitted along the most reasonable path, the structure is stable in concentration and unreasonable, the probability of damaging the key position due to the fact that the damage is avoided for a long term is reduced.
Optionally, as shown in fig. 1 and 2, the transverse stiffeners on two sides of the i-beam 3 include a first transverse stiffener 5 and a second transverse stiffener 6 that are symmetrically disposed, one side of the first connecting plate 12 near the second connecting plate 14 extends out to form a first lateral lug 13, and the first lateral lug 13 is connected with the first transverse stiffener 5.
Optionally, the first lateral ear 13 and the first transverse stiffener 5 are connected by means of bolts.
Optionally, a second side ear 15 extends from a side of the second connecting plate 14 adjacent to the first connecting plate 12, and the second side ear 15 is connected to the second transverse stiffener 6.
Optionally, the second side ear 15 and the second transverse stiffener 6 are connected by bolts.
In this optional embodiment, be provided with first horizontal stiffening rib 5 and second horizontal stiffening rib 6 respectively in girder I-steel 3's both sides, first lug 13 is extended towards the direction of second connecting plate 14 to first connecting plate 12, pass through bolted connection with first lug 13 that will extend and first horizontal stiffening rib 5, make the operation process need not professional welders through bolted connection, ordinary constructor utilizes simple instrument just can accomplish the installation rapidly, construction speed has been accelerated greatly, the efficiency of construction has been improved, in the follow-up stage of demolishing, can disassemble fast through the bolt, and the destruction that probably causes I-steel peripheral structure when still having avoided the welded part to disassemble. In addition, the bolt connection is less disturbed by environmental factors, and even in a severe outdoor construction environment, the operation can be stably carried out after the bolt connection is slightly protected in weather, so that the construction period is not influenced. Similarly, the second connecting plate 14 is close to the second side lugs 15 extending from one side of the first connecting plate 12, the second side lugs 15 are connected with the second transverse stiffening ribs 6, and forces are uniformly distributed on two sides of the girder I-steel 3 through symmetrical connection, so that the balance of the overall stress of the structure is maintained. The bolting of the second side ear 15 to the second transverse stiffener 6 is also considered to be the same as the bolting of the first side ear 13. Through bolted connection for the connected mode of both sides is unified, standard, not only constructor grasps operation flow more easily, and from quality management and control perspective, as long as guarantee that the specification of bolt is correct, screw up moment up to standard, just can stably realize the connection effect, furthest reduces the structural hidden danger because of connecting improperly and causes, and the security and the reliability of the whole structure system of omnidirectionally promote lets girder I-steel 3 closely link to each other with bearing 1, handles various vertical, transverse load in coordination.
Alternatively, as shown in fig. 1 and 2, the first connecting assembly 21 includes a first bottom plate 211, a first connecting arm 212 and a first clamping plate 214, wherein the bottom surface of the first bottom plate 211 is connected with the top surface of the carrier plate 11, the top surface of the first bottom plate 211 is connected with one end of the first connecting arm 212, the other end of the first connecting arm 212 extends out of a third connecting arm 213 in a direction close to the second connecting assembly 22, one end of the third connecting arm 213 is connected with one surface of the first clamping plate 214, and the other surface of the first clamping plate 214 is used for being connected with one side of the web of the secondary beam i-steel 4.
Optionally, the device further includes a first connecting piece, where the first connecting piece includes a first bolt and a first nut, a first through hole is provided on the first bottom plate 211, a second through hole is provided on the carrier plate 11, and the first bolt is connected with the first nut after passing through the first through hole and the second through hole respectively.
In this alternative embodiment, the first bottom plate 211 of the first connecting component 21 is connected with the carrier plate 11 through a first connecting member, that is, a first through hole and a second through hole are respectively formed on the first bottom plate 211 and the carrier plate 11, the ground of the first bottom plate 211 is attached to the top surface of the carrier plate 11, so that the positions of the first through hole and the second through hole are mutually matched, and then the first bottom plate 211 and the carrier plate 11 are tightly connected and fixed through the first connecting member after respectively penetrating through the first through hole and the second through hole through a first bolt, and meanwhile, in order to enhance the stability of connection, multiple groups of through holes can be formed at suitable positions of the first bottom plate 211 and the carrier plate 11 and are respectively connected through bolts. When carrying out I-steel connection, constructor adopts bolted connection only to need simple instrument, can accomplish installation and dismantlement fast, at job site, facing different operating modes or follow-up handling process, only need unscrew the nut, take out the bolt, just can split first coupling assembling 21 fast, neither harm carrier plate 11 and first coupling assembling 21, can nimble adjustment again, change relevant part, moreover, bolted connection is strong to construction environment's adaptability, compare in connection modes such as welding, under complex environment such as humidity is great, outdoor, still can stably reach high quality connection, guarantee that the construction progress does not receive environmental factor excessively to interfere. The top surface of the first bottom plate 211 is vertically connected with the first connecting arm 212, the first connecting arm 212 plays a role in extension and transition, a subsequent connecting structure can span a certain distance and is accurately positioned to the corresponding position of the web plate of the secondary beam I-steel 4, as frequent disassembly is not needed between the first side arm and the first backing plate, the first connecting arm 212 can be fixedly connected by welding, the other end of the first connecting arm 212 extends out of the third connecting arm 213 along the direction close to the second connecting assembly 22, the first connecting arm 212 and the third connecting arm 213 form an L shape, the extending end of the third connecting arm 213 is connected with one side of the first clamping plate 214, the other side of the first clamping plate 214 can be tightly connected with the web plate of the secondary beam I-steel 4 by the extending side arm, and accordingly the secondary beam I-steel 4 can be fixed and supported by the connecting arm clamping plate.
Alternatively, as shown in fig. 1 and 2, the second connecting assembly 22 includes a second bottom plate 221, a second connecting arm 222, and a second clamping plate 224, where a bottom surface of the second bottom plate 221 is connected to a top surface of the carrier plate 11, the top surface of the second bottom plate 221 is connected to one end of the second connecting arm 222, the other end of the second connecting arm 222 extends out of the fourth connecting arm 223 toward a direction close to the first connecting assembly 21, one end of the fourth connecting arm 223 is connected to one surface of the second clamping plate 224, the other surface of the second clamping plate 224 is connected to the other surface of the web of the secondary beam i-steel 4, and positions of the first clamping plate 214 and the second clamping plate 224 on both sides of the web of the secondary beam i-steel 4 are matched.
Optionally, the device further includes a second connecting piece, the second connecting piece includes a second bolt and a second nut, a third through hole is provided on the second bottom plate 221, a rectangular through hole is provided on the carrier plate 11, a length direction of the rectangular through hole is along the second direction, a width of the rectangular through hole is matched with a diameter of the third through hole, and the second bolt is connected with the second nut after passing through the rectangular through hole and the third through hole respectively.
In this alternative embodiment, the second connecting component 22 cooperates with the first connecting component 21 to jointly perform a stable clamping of the secondary beam i-steel 4. The structure of second coupling assembling 22 includes second bottom plate 221, second linking arm 222 and second splint 224, the inseparable laminating of second bottom plate 221 is at the top surface of carrier plate 11, the third through-hole has been seted up on second bottom plate 221, rectangular through-hole has been seted up on carrier plate 11, rectangular through-hole length direction is along the second direction, rectangular through-hole's width matches with the diameter of third through-hole, during the construction, the second bolt passes rectangular through-hole respectively and after the third through-hole with second nut threaded connection, thereby fix second bottom plate 221 on carrier plate 11, the easy operation is convenient, ordinary constructor utilizes tools such as spanner can accomplish fast, the construction speed has been accelerated, and rectangular through-hole has the flexibility of fine setting along the second direction along the redundant space that the second direction was left for second coupling assembling 22 has to a certain extent. For example, in the field assembly, if the dimension or the installation position of the secondary beam I-steel 4 is slightly deviated, the secondary beam I-steel can be accurately adapted by utilizing the adjustable space without re-punching or modifying the components and slightly moving the second connecting assembly 22, so that the fault tolerance of the field assembly is greatly improved, the construction difficulty is reduced, the smooth promotion of the construction is ensured, and convenience is provided for the subsequent possible maintenance work such as overhaul, component replacement and the like. In order to further improve the connection stability of the second bottom plate 221 and the carrier plate 11, a plurality of rectangular through holes may be formed in the carrier plate 11, and a circular through hole corresponding to the rectangular through holes may be formed in the second bottom plate 221, so that the connection stability of the second bottom plate 221 and the carrier plate 11 may be effectively improved by connecting the same through bolts. The second connecting arm 222 is erected from the top surface of the second bottom plate 221, the other end of the second connecting arm 222 extends out of the fourth connecting arm 223 along the reverse direction close to the first connecting assembly 21, the extending end of the fourth connecting arm 223 is connected with one surface of the second clamping plate 224, the second connecting arm 222 and the fourth connecting arm 224 form an L shape, the layout is the same as the first connecting assembly 21, a symmetrical structure is formed, and the stress on two sides is guaranteed to be uniform. The second clamping plate 224 corresponds to the first clamping plate 214 accurately, and the two clamping plates are matched on two sides of the web plate of the secondary beam I-steel 4, so that the web plate can be stably held from the left side and the right side, the secondary beam I-steel 4 is firmly fixed at a preset position, and reliable support is provided for transmitting vertical shearing force for the whole structural system. Meanwhile, in order to improve the supporting effect of the connecting arms, multiple groups of connecting arms can be arranged between the bottom plate and the clamping plates, so that the plurality of connecting arms are connected with the clamping plates, better supporting force and connecting effect can be provided for the secondary beam I-steel 4, and the stability of connection between the second connecting assembly 22 and the first connecting assembly 21 and the secondary beam I-steel 4 is ensured.
Optionally, as shown in fig. 1 and 2, the apparatus further includes a third connecting member, where the third connecting member includes a third bolt and a third nut, the first clamping plate 214 is provided with a fourth through hole, the second clamping plate 224 is provided with a fifth through hole, the web of the secondary beam is provided with a sixth through hole, and the third bolt is threaded with the third nut after passing through the fourth through hole, the sixth through hole, and the fifth through hole, respectively.
In this alternative embodiment, the first clamping plate 214 and the second clamping plate 224 are arranged on two sides of the web of the secondary beam i-steel 4 respectively, the first clamping plate 214 is provided with a fourth through hole, the second clamping plate 224 is provided with a fifth through hole, and the matching position on the web of the secondary beam i-steel 4 is also accurately reserved with a sixth through hole. During construction, the third bolt sequentially passes through the fourth through hole of the first clamping plate 214, the sixth through hole of the web plate of the secondary beam I-steel 4 and the fifth through hole of the second clamping plate 224, and finally is in threaded connection with the third nut. Thereby firmly fixing the first clamping plate 214 and the second clamping plate 224 on the two sides with the web plate of the middle secondary beam I-steel 4 to form a stable whole. The web of the secondary beam I-steel 4 is the part bearing the vertical shearing force, and the third connecting piece generates force at the position, so that the vertical shearing force can be very effectively resisted, the conditions of web deformation, clamping plate loosening and the like of the secondary beam I-steel 4 in the stress process are prevented, the connection reliability of the secondary beam I-steel 4 and the clamp 2 is ensured, and the whole structure system is more stable and efficient in the vertical load transmission. Meanwhile, the bolt connection operation is simple, constructors only need to hold conventional tools such as a wrench and the like, the bolt penetration and the nut tightening operation can be completed sequentially, complex professional equipment and high operation skills are not needed, the on-site assembly speed is greatly increased, the construction time cost is reduced, and the construction efficiency is improved. In addition, once the secondary beam I-steel 4 needs to be disassembled and replaced in the subsequent engineering, the third nut is unscrewed, the third bolt is pulled out, the connection between the clamping plate and the secondary beam I-steel 4 can be easily disassembled, the whole maintenance flow is simple and easy, and great convenience is provided for operation and maintenance management of the whole life cycle of the engineering.
Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.