Climbing frame attachment device of floor slab local inward-contraction structure and construction method thereof
Technical Field
The invention relates to the field of building construction, in particular to a climbing frame attachment device of a local inward-closing structure of a floor slab and a construction method thereof.
Background
In recent years, a large number of high-rise and super high-rise buildings are built in China, and an external protection frame needs to be erected during construction of a main structure of the building. The traditional steel pipe scaffold has the following problems:
firstly, high-rise and super high-rise buildings are high in height, and the external frame erection and dismantling operation is high-altitude operation and high in danger;
the outer frame is not beautiful, and the civilized construction effect is poor;
the outer frame needs to be dismantled after the main body structure is capped, the erection time is long, and the cost is high;
fourthly, the turnover rate of the outer frame is low;
in order to solve the problems, the climbing type outer frame is applied more and more, can be assembled on the ground, and can continuously climb along with the construction of the structure by using a climbing system, so that the safety is higher, the civilized construction effect is better, the turnover rate is high, and the cost is controllable.
The attachment mode of the conventional climbing frame is shown in fig. 1: the frame body is connected with the guide rail, the guide rail is connected with the clamping piece, the clamping piece and the main structure have two connection modes, one mode is a channel steel connected and attached to a floor slab, and as shown in figure 2, the self weight of the climbing frame and the load borne by the climbing frame are borne by the floor slab; one is to connect the connecting members attached to the beams, as shown in fig. 3, and the self-weight of the creel and the load it bears are borne by the beams.
However, due to the need of building modeling, a part of high-rise structures have the condition that the structural floor slab is partially retracted, at this time, the climbing frame cannot be attached to the floor slab or the beam, so that the climbing frame cannot be adopted, or the climbing frame is partially adopted, and a steel pipe scaffold is partially adopted, so that the construction is abnormally complicated.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a climbing frame attachment device of a local inward-shrinkage structure of a floor slab and a construction method thereof, and solves the technical problem that a conventional climbing frame cannot be adopted when the floor slab is locally shrunk inwards in the prior art.
The invention discloses a climbing frame attachment device of a local floor inward-closing structure, which comprises an attachment frame formed by splicing and connecting a plurality of sections of standard joints, wherein the attachment frame is fixed on a floor at the bottom surface of the inward-closing structure and is positioned at the edge, each standard joint comprises two steel plates which are arranged oppositely in parallel and a stiffening rib plate fixed between the two steel plates, a counter-pulling screw rod is axially and penetratingly connected in the stiffening rib plate, one end of the counter-pulling screw rod penetrates out of the stiffening rib plate and forms a fixing section for detachably connecting a climbing frame assembly, and the fixing section is aligned to the edge of the floor at the bottom surface of the inward-closing structure.
The climbing frame attachment device of the local floor slab adduction structure is further improved in that the climbing frame assembly comprises a guide rail and a fixing piece for fixing the guide rail, the fixing piece is an L-shaped connected vertical plate and a transverse plate, the vertical plate is provided with a hole for the fixing section to penetrate through, and the transverse plate is fixed with the guide rail.
The climbing frame attachment device of the local inward-contraction structure of the floor slab is further improved in that the number of the stiffening rib plates is multiple, and the stiffening rib plates are arranged at intervals along the length direction of the section steel plate.
The climbing frame attachment device of the floor slab local adduction structure is further improved in that the climbing frame attachment device further comprises three inclined struts which are obliquely supported between the adduction structure bottom floor slab and the attachment frame, wherein the first inclined strut and the second inclined strut are symmetrically arranged on the opposite outer sides of the two steel plates, and the third inclined strut is arranged on one side back to the edge of the adduction structure bottom floor slab.
The climbing frame attachment device of the local floor slab adduction structure is further improved in that a first embedded part used for fixing the attachment frame and three second embedded parts used for fixing three inclined struts in a one-to-one correspondence mode are fixed on a floor slab on the bottom surface of the adduction structure.
The climbing frame attachment device of the floor slab local adduction structure is further improved in that a first inclined strut and a second inclined strut are fixed on the two steel plates through the lug plates, the other ends of the split bolts of the two adjacent stiffening rib plates are fixed with the fixing plates with the lug plates, and a third inclined strut is fixed on the lug plates of the fixing plates.
The climbing frame attachment device of the local adduction structure of the floor slab is further improved in that connecting plates are fixed at the head end and the tail end of each standard section, and the tail end of the previous standard section is connected with the head end of the next standard section through bolts to connect the corresponding connecting plates in a splicing manner.
In a second aspect, the present invention further provides a construction method of a climbing frame attachment device of a floor slab local adduction structure, including the following steps:
pouring a bottom floor slab of the adduction structure;
arranging two section steel plates in parallel and oppositely, and fixing a stiffening rib plate between the two section steel plates to form a standard joint; splicing and connecting a plurality of sections of standard sections to form an attachment frame;
fixing the bottom end of the attachment frame on the floor at the bottom of the adduction structure and at the edge;
and a counter-pulling screw rod is axially and penetratingly connected in the stiffening rib plate, one end of the counter-pulling screw rod penetrates out of the stiffening rib plate to form a fixed section, the fixed section is aligned to the edge of the floor slab at the bottom surface of the adduction structure, and the climbing frame assembly is connected to the fixed section.
The construction method of the climbing frame attachment device of the local floor slab adduction structure is further improved in that the climbing frame attachment device further comprises three inclined struts;
after the bottom end of the attachment frame is fixed on the bottom floor slab of the adduction structure, three inclined struts are obliquely supported between the bottom floor slab of the adduction structure and the attachment frame, wherein the first inclined strut and the second inclined strut are symmetrically arranged on the opposite outer sides of the two steel plates, and the third inclined strut is arranged on one side back to the edge of the bottom floor slab of the adduction structure.
The construction method of the climbing frame attachment device of the local adduction structure of the floor slab is further improved in that when the floor slab at the bottom surface of the adduction structure is poured, a first embedded part and three second embedded parts are embedded in advance;
when the attachment frame is fixed, fixing the bottom end of the attachment frame to the first embedded part;
when the three inclined struts are fixed, the bottom ends of the three inclined struts are fixed to the three second embedded parts in a one-to-one correspondence mode.
Compared with the prior art, the invention has positive and obvious effect. The invention solves the technical problem that the conventional climbing frame cannot be adopted when the floor slab is locally internally received in the prior art by fixing the climbing frame guide rail on the standard section instead of the floor slab and the beam attached to the rail. The standard sections are spliced and installed, so that the floor slab can be suitable for the condition of different layer heights of the structure or the condition of adduction of multiple layers of floor slabs, and the applicability is strong; due to the arrangement of the inclined struts, the bearing capacity of the standard knot is obviously improved, and the self weight of the climbing frame and the load borne by the climbing frame can be borne; all the parts are detachably connected, so that the whole structure can be recycled, and the device is green and economical.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a standard section of a climbing frame attachment device of a floor slab local adduction structure of the present invention.
Fig. 2 is a front view of a creel attachment device of a floor slab partially adduction structure of the present invention.
Fig. 3 is a side view of a creel attachment device of a floor slab partially adduction structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The use of the directions of up, down, front, rear, left, right, etc. in the present invention is only for convenience of description and does not limit the technical solution of the present invention.
As shown in fig. 1 to 3, the present invention provides a climbing frame attachment device of a local floor inward-closing structure, which includes an attachment frame formed by splicing and connecting a plurality of standard joints, wherein the attachment frame is fixed on a floor 8 at the bottom surface of the inward-closing structure and is located at an edge, the standard joints include two steel plates 1 which are arranged in parallel and oppositely, and a stiffening rib plate 2 fixed between the two steel plates 1, a counter-pulling screw 10 is axially connected in the stiffening rib plate 2 in a penetrating manner, one end of the counter-pulling screw 10 penetrates through the stiffening rib plate 2 and forms a fixed section for detachable connection of a climbing frame assembly, and the fixed section is aligned with the edge of the floor 8 at the bottom surface of the inward-closing structure. In this embodiment, the plurality of attaching devices are arranged along the edge of the floor slab 8 on the bottom surface of the adduction structure, the length of the standard knot is 2m, and the standard knots are spliced and connected according to the height of the adduction structure of the actual floor slab 8, so that the attaching device is applicable to the condition of different heights of the structure or adduction of multiple layers of floor slabs 8, and has strong applicability. The section steel plates 1 are I-shaped, and the webs are wide, so that the strength of the section steel plates 1 fixed by the stiffening rib plates 2 is high. The axial length of the stiffening rib plate 2 is provided with a through hole 3 for the opposite pulling screw rod 10 to pass through.
Specifically, this frame subassembly that should climb includes guide rail 12 and the fixed part 11 of fixed this guide rail 12, and this fixed part 11 is riser and the diaphragm that the L type is connected, offers the trompil that supplies this canned paragraph to wear to establish on this riser, and this diaphragm is fixed with this guide rail 12. Further, be fixed with the reinforcing plate between this firm board and the diaphragm, improve the intensity of mounting 11, mounting 11 can be fixed in the through-hole 3 position of co-altitude not according to the standard requirement to the arrangement scheme of adjustment mounting 11, the suitability is stronger, and this connected mode has improved the fixed stability of guide rail 12. The guide rail 12 is connected with the detachable installation mode through the bolt, so that the installation convenience is improved, and meanwhile, the guide rail can be recycled, the cost is reduced, and the guide rail is green and economical.
Preferably, as shown in fig. 1, the number of the stiffening ribs 2 is plural and the stiffening ribs are arranged at intervals along the longitudinal direction of the profiled steel sheet 1 to improve the overall strength of the attaching frame.
Preferably, the structure further comprises three inclined struts 5 between the bottom floor slab 8 of the adduction structure and the attachment frame, wherein the first inclined strut 5 and the second inclined strut 5 are symmetrically arranged at the opposite outer sides of the two section steel plates 1, and the third inclined strut 5 is arranged at one side back to the edge of the bottom floor slab 8 of the adduction structure. Fixing the diagonal brace 5 on three sides other than the side of the guide rail 12 improves the stability of the whole attachment frame and prevents the attachment frame from tilting.
Preferably, a first embedded part for fixing the attaching frame and three second embedded parts for fixing the three inclined struts 5 in a one-to-one correspondence are fixed on the bottom floor 8 of the adduction structure. The bottom end of the attaching frame and the first embedded part are detachably fixed through foundation bolts 9.
Specifically, as shown in fig. 2 and 3, the first and second inclined struts 5 are fixed to two of the steel plates 1 through lugs 6, the fixing plates 7 with the lugs 6 are fixed to the other ends of the opposite bolts of two adjacent stiffening rib plates 2, and the third inclined strut 5 is fixed to the lug 6 of the fixing plate 7. Furthermore, the lug plates 6 on the section steel plate 1 are fixed on the standard knot through fixing plates 7, and the fixing plates 7 are connected with the section steel plate 1 through bolts. Preferably, a plurality of screw holes are seted up along length direction interval to shaped steel plate 1, can pass through bolted connection as required, make bracing 5 arrange in a flexible way. Furthermore, the ear plate 6 and the two ends of the inclined strut 5 are respectively provided with an opening, and the screw or other connecting shafts penetrate through the openings on the ear plate 6 and the inclined strut 5, so that the inclined strut 5 is connected with the ear plate 6, and the inclined strut 5 is detachably fixed between the standard joint and the floor slab 8.
On the other hand, the invention also provides a construction method of the climbing frame attachment device of the floor slab local adduction structure, which comprises the following steps: pouring an adduction structure bottom floor slab 8; arranging two section steel plates 1 oppositely in parallel and fixing a stiffening rib plate 2 between the two section steel plates 1 to form a standard joint; splicing and connecting a plurality of sections of standard sections to form an attachment frame; the bottom end of the attachment frame is fixed on the bottom floor slab 8 of the adduction structure and is positioned at the edge; a tie screw 10 is axially connected in the stiffening rib 2 in a penetrating manner, and one end of the tie screw 10 penetrates out of the stiffening rib 2 to form a fixed section, and the fixed section is aligned with the edge of the floor 8 at the bottom of the adduction structure, and the climbing frame component is connected to the fixed section. The construction method enables the climbing frame assembly to be installed on the attaching frame, so that climbing is continued without being limited by an adduction floor slab, and the attaching frame is simpler and more convenient to install compared with the traditional attaching frame.
Further, the climbing frame attachment device also comprises three inclined struts 5; after the bottom end of the attachment frame is fixed on the adduction structure bottom floor slab 8, three inclined struts 5 are arranged between the adduction structure bottom floor slab 8 and the attachment frame, wherein, a first inclined strut 5 and a second inclined strut 5 are symmetrically arranged at the relative outer sides of the two section steel plates 1, and a third inclined strut 5 is arranged at one side back to the edge of the adduction structure bottom floor slab 8. The construction method enables the climbing frame guide rail 12 at the inner part of the floor slab 8 to be arranged on a standard knot, provides an attachment position for the climbing frame guide rail 12 and provides effective support.
Specifically, when the bottom floor 8 of the adduction structure is poured, a first embedded part and three second embedded parts are embedded; when the attachment frame is fixed, the bottom end of the attachment frame is fixed to the first embedded part; when the three inclined struts 5 are fixed, the bottom ends of the three inclined struts 5 are fixed to the three second embedded parts in a one-to-one correspondence manner.
The invention solves the technical problem that the conventional climbing frame cannot be adopted when the floor slab is locally internally received in the prior art by fixing the climbing frame guide rail on the standard section instead of the floor slab and the beam attached to the rail. The standard sections are spliced and installed, so that the floor slab is suitable for the condition of different layer heights of the structure or the condition of inward contraction of multiple layers of floor slabs, and the applicability is strong; due to the arrangement of the inclined struts, the bearing capacity of the standard knot is obviously improved, and the self weight of the climbing frame and the load borne by the climbing frame can be borne; all the parts are detachably connected, so that the whole structure can be recycled, and the method is green and economical.
The parts not involved in the present invention are the same as or can be implemented by the prior art. Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.