Platform beam assembly type positioning sleeve frame system and application method thereof
Technical Field
The invention relates to the field of scaffold erection on a concrete independent beam, in particular to a platform beam assembly type positioning sleeve frame system and a use method thereof.
Background
Modern buildings usually have a plurality of concrete independent cantilever beams designed along the height direction, hereinafter referred to as independent cantilever beams, for various purposes. The design of the concrete independent beam brings great difficulty to the erection of the scaffold, and how to ensure the safety of the scaffold system on the premise of meeting the standard requirement is not solved in an effective way at present. In the prior art, even the situation that the steel beam replaces the concrete single-cantilever beam exists, and because the steel beam structure is poor in corrosion resistance and fireproof capability, great potential safety hazards exist.
In order to ensure the safe erection of the scaffold with the concrete single-cantilever structure, when the semi-suspended support frame platform at the high position of the cantilever platforms Liang Dashe at the two ends which are vertically intersected with the cast-in-place concrete single-cantilever is adopted, effective measures must be taken for the connection nodes of the platform beams and the concrete single-cantilever to ensure that the scaffold can reliably work under various possible complex stress models, and the scaffold has enough bending resistance, shearing resistance and torsion resistance bearing force so as to reliably transfer force and resist high-altitude overturning.
The reliability of node connection is considered, and the feasibility of actual construction operation is also considered, wherein the appropriate connection mode is as follows: and manufacturing the platform beam into a superposed clamping sleeve beam. On one hand, the T-shaped steel beams positioned at the two sides of the independent beam and arranged at the lower part of the superposed clamping sleeve beam are reliably connected with embedded parts in concrete at the two sides of the independent beam by adopting connecting plates and bolts; on the other hand, embedding embedded bolts on the top surface of the independent suspension beam into large-inner-diameter deflection-holding sleeves welded on two sides of long I-steel on the upper part of the superimposed clamping sleeve beam, connecting inner wire sections locally opened at the top ends of the large-inner-diameter deflection-holding sleeves with the embedded bolts by adopting compensation nuts, forming threaded connection between the outer walls of the compensation nuts and the inner wire sections at the top ends of the sleeves while the inner walls of the compensation nuts are in threaded connection with the embedded bolts, filling the compensation nuts between the inner wire sections at the top ends of the sleeves and the embedded bolts, and forming a circle of welding seams to form reliable connection equivalent to welding; after the laminated clamping sleeve beam is reliably connected with the two sides and the top of the independent beam in a special design mode, the connection joint of the whole platform beam and the concrete independent beam can ensure reliable work under various possible complex stress models, has enough bending resistance, shearing resistance and torsion resistance bearing force, and can reliably transfer force and resist high-altitude overturning.
The node connection mode requires that the embedded parts in the concrete at the two sides of the independent beam and the top embedded part are manufactured into a whole by adopting the same steel plate, so that the fixed relative position relationship between the embedded parts in the concrete at the two sides and the top embedded part can be accurately set during manufacturing, and the embedded accuracy of the embedded parts and the top embedded part, namely the deviation accuracy control, is integrally controlled. When the top is connected and installed, the plane positions of the four embedded long bolts at the bottom of the independent cantilever beam are required to be in a group within the allowable deviation range, so that effective measures are required to be taken to reduce the deviation of the embedded plane and the verticality on one hand, and measures are required to be taken to improve the fault tolerance, namely the deviation capability of the welded pipe on the superimposed clamping sleeve flat beam on the other hand.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a platform beam assembly type positioning sleeve frame system and a use method thereof, which are used for improving the tolerance requirement of the installation of a platform beam, ensuring the smooth installation of the platform beam and realizing the effect of approximate welding fixation. The assembled sleeve frame system is used for realizing stable connection between the platform beam and the independent beam, and meanwhile, on the premise of meeting the operation precision, the assembled structure is adopted to ensure that part of components after the platform beam is installed and fixed can be reused after being disassembled, so that energy sources are saved, the energy consumption is reduced, and the defects in the prior art are perfectly overcome.
The invention provides a platform beam assembly type positioning sleeve frame system which comprises a concrete independent beam and a plurality of platform beams, wherein the plurality of platform beams are parallel to each other and are all perpendicular to the concrete independent beam and fixedly arranged on the upper surface of the concrete independent beam.
Further, the platform beam is fixedly connected with an embedded part in the concrete independent beam through the positioning sleeve frame system, and is an I-shaped steel beam;
further, the positioning sleeve frame system comprises a vertical screw rod, a sleeve frame bottom plate, a vertical support plate, a long sleeve pipe, a compensation nut and a top alignment plate, wherein two bolt penetrating holes are formed in the sleeve frame bottom plate, the two vertical support plates are perpendicular to the sleeve frame bottom plate and are positioned at the outer sides of the two bolt penetrating holes;
further, two long sleeves are respectively positioned at the inner sides of the two vertical support plates, internal threads are arranged in the long sleeves, compensation nuts are respectively screwed at the tops of the two long sleeves, and the bottoms of the long sleeves are arranged corresponding to the bolt penetrating holes;
further, the long sleeve is abutted against the vertical support plate, a plurality of threaded holes are vertically formed in the long sleeve, horizontal bolt penetrating holes are formed in the horizontal positions, corresponding to the threaded holes, of the vertical support plate, and the connecting bolts penetrate through the horizontal bolt penetrating holes and the threaded holes to fixedly connect the vertical support plate with the long sleeve;
further, the top of the compensation nut is detachably provided with the top alignment plate.
Further, the compensation nut is an inner and outer wall double-thread compensation nut matched with the inner thread formed on the long sleeve top section, the inner wall thread of the compensation nut is matched with the vertical screw rod to be embedded, and the outer wall thread of the compensation nut is matched with the inner thread formed on the long sleeve top section.
Further, the nut of the compensation nut is larger than the outer diameter of the long sleeve, the length of the vertical support plate is longer than the long sleeve, the thickness of the vertical support plate at the position higher than the long sleeve is reduced, and the reduced thickness is matched with the nut of the compensation nut.
Further, vertical alignment through bolt holes are formed in the edge-leaning position of the top surface of the compensation nut, vertical alignment holes are formed in the top alignment plate corresponding to the vertical alignment through bolt holes, alignment locking threaded holes are formed in the top of the vertical support plate corresponding to the vertical alignment through bolt holes, and the alignment locking threaded rods sequentially penetrate through the vertical alignment holes, the vertical alignment through bolt holes and the alignment locking threaded holes to fixedly connect the top alignment plate, the compensation nut and the vertical support plate.
Further, the vertical screw rod is close to the top and is provided with a horizontal thread locking hole, after the vertical screw rod is fixed in position, the vertical screw rod penetrates through the horizontal thread locking hole, and the two horizontal thread locking screw rods are connected into a whole through a long nut at the position between the two vertical screw rods.
Further, an inner hexagon is arranged at the top of the vertical screw rod.
Further, the vertical screw rod passes through a bolt penetrating hole on the bottom plate of the sleeve frame and is screwed and fixed through a nut.
Further, the vertical support plate and the sleeve frame bottom plate are welded by adopting welding seams.
The invention also provides a using method of the platform beam assembly type positioning sleeve frame system, which comprises the following steps:
1) Setting and welding stiffening plates and connecting plates at the positions of the long sleeves on the I-shaped steel beams;
2) Sleeving the positioning sleeve frame at the position of the I-steel welded stiffening plate and the connecting plate;
3) Welding the long sleeve on the positioning sleeve frame with the welded connecting plate on the I-steel by using electric welding;
4) The positioning jig is removed entirely except for the long sleeve which has been welded.
According to the platform beam assembly type positioning sleeve frame system and the application method thereof, compared with the prior art, the platform beam assembly type positioning sleeve frame system has the following beneficial effects:
1. the invention provides a platform beam assembly type positioning sleeve frame system and a use method thereof, which firstly provide that the positioning sleeve frame system is adopted to realize the accurate connection and fixation between an upper platform beam and a lower concrete single-cantilever embedded part, and the positioning sleeve frame adopts a large-inner-diameter deflection-containing sleeve to realize the accurate matching of the embedded part, and simultaneously improves the deflection-containing function, so that the feasibility and convenience of installation are greatly improved. Meanwhile, the omnibearing installation, fixation and locking are realized, so that the fixation of the platform beam on the concrete independent beam is similar to the welding fixation, the stability of the whole structure is greatly improved, the capability of resisting various loads is enhanced, and the construction requirement of fixing the platform beam on the high-altitude concrete independent beam is completely met.
2. The platform beam assembly type positioning sleeve frame system is of an assembly type structure, all parts are assembled and connected in a detachable mode after the structure is shaped, all parts can be produced in batches, and meanwhile, when the platform beam and the concrete independent beam are assembled and detached, the repeated use of the parts is realized, energy sources are saved, and energy consumption is reduced. Meanwhile, the construction difficulty is reduced due to the detachable assembly type assembly, a plurality of platform beams can be constructed in parallel, and the construction efficiency is improved.
3. The platform beam assembly type positioning sleeve frame system and the application method thereof have the advantages of simple structure, convenient use, energy conservation and suitability for large-area popularization and application.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is a schematic illustration of the structure of the present invention after welding with I-steel;
fig. 4 is a schematic diagram of the connection of the structure of the present invention to the embedment in the single cantilever beam.
The figure shows:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The invention provides a platform beam assembly type positioning sleeve frame system which comprises a concrete independent beam and a plurality of platform beams, wherein the plurality of platform beams are parallel to each other and are all perpendicular to the concrete independent beam and fixedly arranged on the upper surface of the concrete independent beam. The platform beam is fixedly connected with the embedded part in the concrete single-cantilever beam through the positioning sleeve frame system.
The positioning sleeve frame system comprises a vertical screw rod 9, a sleeve frame bottom plate 1, a vertical support plate 2, a long sleeve pipe 4, a compensation nut 6 and a top alignment plate 7. Two second bolt penetrating holes 1-2 are formed in the sleeve frame bottom plate 1, two vertical support plates 2 are arranged, and the two vertical support plates 2 are perpendicular to the sleeve frame bottom plate 1 and are located on the outer sides of the two second bolt penetrating holes 1-2; the two long sleeves 4 are respectively positioned at the inner sides of the two vertical support plates 2, internal threads 4-1 are arranged in the long sleeves 4, compensation nuts 6 are respectively screwed at the tops of the two long sleeves 4, and the bottoms of the long sleeves 4 are arranged corresponding to the bolt penetrating holes; the long sleeve 4 is abutted against the vertical support plate 2, a plurality of threaded holes 4-2 are vertically formed in the long sleeve 4, horizontal bolt penetrating holes 2-2 are formed in the horizontal positions of the vertical support plate 2 corresponding to the threaded holes 4-2, and connecting bolts 5 penetrate through the horizontal bolt penetrating holes 2-2 and the threaded holes 4-2 to connect and fix the vertical support plate 2 and the long sleeve 4; the top of the compensation nut 6 is detachably provided with a top alignment plate 7.
The compensating nut 6 is an inner and outer wall double-thread compensating nut 6 matched with the inner thread 4-1 arranged at the top section of the long sleeve 4, the inner wall thread of the compensating nut 6 is matched with a vertical screw rod 9 which needs to be pre-buried, and the outer wall thread 6-2 of the compensating nut 6 is matched with the inner thread 4-1 started at the top section of the long sleeve 4.
The nut of the compensation nut 6 is larger than the outer diameter of the long sleeve 4, the length of the vertical support plate 2 is longer than the long sleeve 4, the thickness of the vertical support plate 2 at the position higher than the long sleeve 4 is reduced, and the reduced thickness is matched with the nut of the compensation nut 6; the top of the compensation nut 6 is provided with a vertical alignment bolt penetrating hole 6-1 close to the edge, a vertical alignment hole 7-1 is arranged on the top alignment plate 7 corresponding to the vertical alignment bolt penetrating hole 6-1, the top of the vertical support plate 2 is provided with an alignment locking threaded hole 2-1 corresponding to the vertical alignment bolt penetrating hole 6-1, and an alignment locking screw 8 sequentially penetrates through the vertical alignment hole 7-1, the vertical alignment bolt penetrating hole 6-1 and the alignment locking threaded hole 2-1 to connect and fix the top alignment plate 7, the compensation nut 6 and the vertical support plate 2.
The vertical screw rods 9 are close to the top and provided with horizontal thread locking holes 9-1, after the positions of the vertical screw rods are fixed, the vertical screw rods penetrate through the horizontal thread locking holes 9-1 through horizontal direction locking screw rods 10, and the two horizontal direction locking screw rods 10 are connected into a whole through a long nut 11 at the position between the two vertical screw rods 9, so that the rotation of the vertical screw rods is further limited, and a stable connecting structure is formed.
The top of the vertical screw rod 9 is provided with an inner hexagon 9-2, so that the vertical screw rod 9 can be rotated conveniently.
The vertical screw rod 9 passes through the second bolt penetrating hole 1-2 on the sleeve frame bottom plate 1 and is screwed and fixed by a nut 13.
The vertical support plate 2 and the sleeve frame base plate 1 are welded by adopting a welding seam 3.
The method for welding and installing long sleeves 4 on two sides of the platform beam by the positioning sleeve frame comprises the following steps: the platform beam is an I-shaped steel beam, and the method comprises the following steps:
1) Setting and welding stiffening plates and connecting plates at the 4 parts of the long sleeve on the I-shaped steel beam;
2) Sleeving the positioning sleeve frame at the position of the I-steel welded stiffening plate and the connecting plate;
3) Welding the long sleeve 4 on the positioning sleeve frame with the welded connecting plate on the I-steel by using electric welding;
4) The positioning jig is removed entirely except for the long sleeve 4 which has been welded.
Example 2:
in order to make the operation of the structure of the present invention clearer, the following is described in detail:
the two ends of the sleeve frame bottom plate 1 are provided with first bolt penetrating holes 1-1 for temporary fixation on the embedded part base, and meanwhile, the sleeve frame bottom plate 1 is provided with second bolt penetrating holes 1-2 for penetrating through vertical bolts to be embedded; corresponding to the first through bolt hole 1-1, a bolt 12 for temporary fixing on the embedded part base is arranged; two ends of the sleeve frame bottom plate 1 are respectively provided with a total of two vertical support plates 2 between the first bolt penetrating holes 1-1 and the second bolt penetrating holes 1-2, and the vertical support plates 2 and the sleeve frame bottom plate 1 are welded by adopting welding seams 3; the lower part of the vertical support plate 2 is provided with a horizontal bolt penetrating hole 2-2, and two connecting bolts 5 are correspondingly provided with a first connecting bolt 5-1 and a second connecting bolt 5-2 respectively; meanwhile, a horizontal bolt penetrating hole 2-3 is formed near the top of the vertical support plate 2 and is used for penetrating the horizontal locking screw 10 and fixing the vertical support plate by adopting a double-screw cap; the thickness of the upper part of the vertical support plate 2 is changed into a cross section to form a step surface, and the vertical support plates 2 are arranged in opposite directions with the step surface; the top of the step surface is vertically and downwards provided with an alignment locking threaded hole 2-1, and is correspondingly provided with an alignment locking screw rod 8.
The inner side surface of each vertical support plate 2 is provided with two long sleeves 4 with internal threads 4-1 at the top section, and the number of the corresponding long sleeves 4 with the internal threads 4-1 at the top section is two; the top end of each long sleeve 4 is provided with an internal thread 4-1, and meanwhile, on a tangent line with the side surface tangent to the vertical support plate 2, horizontal threaded holes 4-2 are arranged up and down, and each sleeve is two; each long sleeve 4 is connected with the vertical support plate 2 by adopting a bolt 23, a second connecting bolt 5-2 and a first connecting bolt 5-1 penetrate through a horizontal bolt penetrating hole 2-2 at the lower part of the vertical support plate 2 and then are screwed into a threaded hole 4-2 at the side surface of the long sleeve 4, and then the long sleeve 4 is fastened on the inner side surface of the vertical support plate 2 by adopting nuts on the second connecting bolt 5-2 and the first connecting bolt 5-1; the compensating nut 6 with double internal and external threads is matched with the internal thread 4-1 arranged at the top section of the long sleeve 4, the internal thread of the compensating nut 6 is matched with the vertical screw rod 9 to be pre-buried, the external thread 6-2 of the compensating nut 6 is matched with the internal thread 4-1 arranged at the top section of the long sleeve 4, and meanwhile, the vertical alignment bolt penetrating hole 6-1 is arranged at the side close to the top surface of the compensating nut 6.
A top alignment plate 7 is arranged on the top surfaces of the two compensation nuts 6, a bolt penetrating hole 7-2 for a vertical bolt to penetrate through is formed in the middle of the top alignment plate 7, and vertical alignment holes 7-1 are formed in the outer sides of the two bolt penetrating holes 7-2 and located at two ends of the top alignment plate 7; when the long sleeve 4 is fixed with the support vertical support plate 2, and after the compensating nut 6 is screwed into the top of the long sleeve 4, the vertical screw rod 9 penetrates through the bolt penetrating hole 7-2 arranged in the middle of the top aligning plate 7 from top to bottom, an inner hexagonal wrench is sleeved into the inner hexagonal 9-2 arranged on the top surface of the vertical screw rod 9, the vertical screw rod 9 is screwed into the compensating nut 6 and continuously screwed downwards until the horizontal bolt penetrating hole 2-3 of the vertical support plate 2 close to the top can be penetrated by the horizontal locking screw rod 10 at the top and screwed into the horizontal thread locking hole 9-1 arranged on the vertical screw rod 9 close to the top.
The two sections of horizontal locking screws 10 are continuously screwed towards the middle in opposite directions and are all screwed into the long nut 11, at the moment, the elevation of the top surface of the vertical screw rod 9, the horizontal position and the starting position of the rotating direction threads are locked, the long sleeve 4 and the vertical support plate 2 of the support are also locked after being fixed, at the moment, the vertical alignment locking screw rod 8 passes through a vertical alignment hole 7-1 formed in the top alignment plate 7 and then passes through a vertical alignment through bolt hole 6-1 formed in the side position of the top surface of the compensating nut 6, if the vertical alignment locking screw rod 8 is not aligned, the compensating nut 6 which is screwed with the long sleeve 4 can be screwed back on the premise that all aspects of the long sleeve 4 and the vertical screw rod 9 are locked, at most, the long sleeve 4 can be screwed back for 360 degrees, the vertical alignment locking screw rod 8 can be continuously screwed through the vertical alignment through bolt hole 6-1 formed in the side position of the top surface of the compensating nut 6, the vertical alignment locking screw rod 8 is screwed into the vertical alignment locking screw hole 2-1 formed in the step surface formed in the variable cross section of the vertical support plate 2, and therefore the compensating nut 6 can be completely screwed up to the starting position of the compensating nut in the rotating direction under the state of the long sleeve 4 and the compensating nut 9; finally, the lower end of the vertical screw rod 9 is screwed upwards by a nut 13 and is pressed with the sleeve frame bottom plate 1. At this time, a preassembled integral sleeve frame is formed.
The application of the preassembled integral sleeve frame when the long sleeve 4 is welded and installed on two sides of the main I-steel of the platform beam is as follows:
1) Welding the stiffening plate and the connecting plate at the 4 part of the I-steel set welding long sleeve;
2) The preassembled integral sleeve frame is sleeved at the position of the I-steel welded stiffening plate and connecting plate,
3) Welding the long sleeve 4 in a preassembled state on the sleeve frame with a welded connecting plate on the I-steel by using electric welding;
4) Then the preassembled sleeve is completely disassembled except the welded long sleeve 4;
5) Two long sleeves 4 are replenished, and the complete preassembled sleeve frame is assembled continuously.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.