CN220059037U

CN220059037U - Floor-free telescopic support frame applied to construction of assembled steel structure floor slab

Info

Publication number: CN220059037U
Application number: CN202321174527.7U
Authority: CN
Inventors: 郭得旺; 徐俊潞; 贺国平; 金佳丰; 施元强
Original assignee: Jinggong Lvzhu Technology Group Co ltd
Current assignee: Jinggong Lvzhu Technology Group Co ltd
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2023-11-21
Anticipated expiration: 2033-05-16

Abstract

The utility model discloses a landing-free telescopic support frame applied to the construction of an assembled steel structure floor slab, which comprises a middle section truss, end section trusses and connecting pendants, wherein two ends of the middle section truss are respectively connected with the end section trusses; the middle-section truss comprises an upper chord, a lower chord and a pull rod, the pull rod is connected with the upper chord and the lower chord, and grooves are formed in the upper chord and the lower chord; the end section truss comprises an upper chord, a lower chord and a pull rod, and the pull rod is connected with the upper chord and the lower chord; the upper chord member and the lower chord member of the end section truss are respectively assembled in the upper chord member groove and the lower chord member groove of the middle section truss, and the end section truss can move relative to the middle section truss. The support frame has the characteristics of being telescopic and free from falling to the ground.

Description

Floor-free telescopic support frame applied to construction of assembled steel structure floor slab

Technical Field

The utility model relates to the field of general building structure connection, in particular to a floor-free telescopic support frame applied to the construction of an assembled steel structure floor slab.

Background

The floor construction of the multi-layer steel structure building house is carried out from the bottom layer to the upper layer, and before the concrete of each layer of floor is poured, a steel pipe scaffold is combined with a temporary template or a permanent template for supporting on the construction site. The temporary support of the floor steel pipe scaffold has long erection period and complicated erection procedures, and the erection procedures are limited by the time for completing the concrete pouring maintenance of the lower floor slab, so that the construction efficiency of the steel structure building is restricted; when the floor level is high, the floor temporary support overhead costs and risks will be greatly increased.

The light steel truss girder and the connecting component thereof, as in the application number 202120887480.3, are fixed on the top guide girder and the wall surface by self-tapping screws in the form of hanging pieces, and the length of the truss girder is fixed and cannot be adjusted according to the condition of a construction site.

In view of the problems, the utility model designs the landing-free telescopic support frame applied to the construction of the assembled steel structure floor slab.

Disclosure of Invention

The utility model provides a landing-free telescopic support frame applied to the construction of an assembled steel structure floor slab, which has the characteristics of being telescopic and landing-free; specifically, the utility model is realized by the following technical scheme:

the floor-free telescopic support frame comprises a middle section truss, end section trusses and connecting hanging pieces, wherein two ends of the middle section truss are respectively connected with the end section trusses, and the connecting hanging pieces are arranged on the end section trusses and are used for being connected with a floor; the middle-section truss comprises an upper chord, a lower chord and a pull rod, the pull rod is connected with the upper chord and the lower chord, and grooves are formed in the upper chord and the lower chord; the end section truss comprises an upper chord, a lower chord and a pull rod, and the pull rod is connected with the upper chord and the lower chord; the upper chord member and the lower chord member of the end section truss are respectively assembled in the upper chord member groove and the lower chord member groove of the middle section truss, and the end section truss can move relative to the middle section truss; the connecting hanging piece comprises a screw rod, the screw rod comprises a first rod section and a second rod section, and the two rod sections are vertically connected; in the end section truss, a through hole is formed in the end part of the upper chord member, the first rod section of the screw rod penetrates through the through hole, and the screw rod is fixed with the upper chord member through a nut.

The support truss is formed by combining three sections, and the connection length of the middle section truss and the end section truss is adjustable so as to adapt to different floor spans. The two ends of the supporting truss are supported on the upper flange of the steel beam through screws and are reliably connected. Temporary templates or permanent templates are paved on the support truss, and a reliable temporary support system is provided for the construction stage of the reinforced concrete floor slab. The floor-free telescopic temporary support system is applicable to different floor types of steel structure buildings, a large free space is reserved for the lower part of the floor, multi-work overall construction is facilitated, and construction progress is accelerated.

The screw rods are adopted to be preinstalled at the two ends of the truss support, and when in field installation, the whole truss support can be directly hung on the upper flange of the steel beam by means of the screw rods, and then reliable welding and fixing can be conveniently carried out.

The high-strength steel beam upper flange has the advantages of good weldability, safety, reliability and high installation efficiency, and the height of the second pole section in the screw rod relative to the upper chord member can be adjusted through the adjusting nut, so that the design and construction requirements of different elevations of the floor slab are met.

Further, in the middle section truss, the length of the upper chord member is longer than that of the lower chord member, the upper chord member and the lower chord member are arranged in parallel, grooves of the upper chord member and grooves of the lower chord member are opposite, two groups of pull rods are arranged, and the two groups of pull rods are arranged on two sides of the beam in parallel.

Further, the upper chord member is made of cold-bent inner curled channel steel, the lower chord member is made of cold-bent deep groove C-shaped steel, and the pull rod is made of round steel.

Further, in the middle truss, a plurality of positioning holes are formed in the upper chord member and the lower chord member along the axis of the beam; in the end section truss, a plurality of positioning holes are arranged in the upper chord member and the lower chord member along the axis of the beam; the locating pins or the locating bolts penetrate through the locating holes of the two trusses and are used for connecting the middle section truss and the end section truss.

Determining a telescopic application range and a length adjustment module according to the span of the floor slab, and uniformly arranging open pore positions at intervals of 50mm at different positions on the side surface of the truss chord beam to realize the adjustment module; meanwhile, the end part is arranged in a slotted hole mode, so that the adjusting support can cover any interval of the adjustable range. After the adjustment is completed, a fixing mode is determined, and a pin is adopted to pass through the two sections of upper chord positioning holes and the lower chord positioning holes.

Further, in the end section truss, the length of the upper chord is longer than that of the lower chord, the upper chord and the lower chord are arranged in parallel, and the pull rod is provided with one group.

Further, the end of the lower chord is bent and connected with the upper chord.

The integral truss is stronger.

Further, the upper chord member is made of square steel pipes, the lower chord member is made of flat steel, and the pull rod is made of round steel.

Further, the end part of the upper chord member of the end section truss is welded and sleeved with a reinforcing member, and the through hole penetrates through the reinforcing member.

Further, the tie rod is disposed in a wave-like manner between the upper chord and the lower chord.

The support frame in this scheme, its characteristics are that interim support light in weight, scalable length of adjusting, utilize the girder steel top flange as the strong point to realize exempting from the function of landing, for the floor construction stage provides reliable interim support, solved the construction efficiency that falls to the ground scaffold frame in the steel construction building and the unmatched problem of steel construction, can use widely on a large scale. The novel floor-free telescopic temporary support can be suitable for floor slab structural forms such as steel bar truss building supporting building, laminated slab, profiled steel sheet, full cast-in-situ floor slab and the like in steel structure buildings.

Drawings

FIG. 1 is a perspective view of an embodiment of a support stand provided by the present utility model;

FIG. 2 is a front view of an embodiment of a support frame according to the present utility model;

FIG. 3 is a front view of an embodiment of a mid-section truss provided by the present utility model;

FIG. 4 is a side view of an embodiment of a mid-section truss provided by the present utility model;

FIG. 5 is a front view of an embodiment of an end section truss provided by the present utility model;

FIG. 6 is a perspective view of one embodiment of an end section truss provided by the present utility model;

FIG. 7 is a schematic view of an embodiment of an end section truss and middle section truss assembly provided by the present utility model;

FIG. 8 is an enlarged view of a portion of FIG. 7;

fig. 9 is a schematic diagram illustrating installation of a connection hanger according to the present utility model;

FIG. 10 is a perspective view of one embodiment of a stiffener according to the present disclosure;

FIG. 11 is a schematic view of a connection hanger and a steel frame beam according to the present utility model;

FIG. 12 is a schematic view of a support frame and a steel frame beam according to the present utility model;

fig. 13 is a partial enlarged view of fig. 12.

Wherein: 1. a middle truss; 11. an upper chord; 12. a lower chord; 13. a pull rod; 14. a groove; 15. positioning holes; 16. positioning holes; 2. an end section truss; 21. an upper chord; 22. a lower chord; 23. a pull rod; 25. positioning holes; 26. positioning holes; 27. a through hole; 28. a reinforcing member; 3. connecting a hanging piece; 31. a screw; 311. a first pole segment; 312. a second pole segment; 32. a nut; 4. a positioning pin; 5. and a steel frame beam.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

In the following description, for the purposes of explanation of various inventive embodiments, certain specific details are set forth in order to provide a thorough understanding of the various inventive embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of the specific details. In other instances, well-known devices, structures, and techniques associated with the present disclosure may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and variations such as "comprises" and "comprising" will be understood to be open-ended, meaning of inclusion, i.e. to be interpreted to mean "including, but not limited to.

Reference throughout this specification to "one embodiment" or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the terms first, second and the like in the description and in the claims, are used for descriptive purposes only and not for limiting the size or other order of the objects described.

As shown in fig. 1 and 2, the landing-free telescopic support frame applied to the construction of the assembled steel structure floor slab comprises a middle section truss 1 and end section trusses 2, wherein the middle section truss 1 is arranged in the middle, the end section trusses 2 are arranged at two ends, two ends of the middle section truss 1 are respectively connected with the end section trusses 2, the end section trusses 2 can move relative to the middle section truss 1, and the moved end section trusses 2 are fixed with the middle section truss 1, so that the whole length of the whole support frame is adjusted.

1. The middle truss 1.

As shown in fig. 3 and 4, the middle truss 1 is a double truss, which includes an upper chord 11, a lower chord 12 and a pull rod 13; in the upper chord 11 and the lower chord 12, a groove 14 is provided along the beam axis, the groove 14 being used for fitting the end section truss 2; the length of the upper chord 11 is longer than that of the lower chord 12, the upper chord 11 and the lower chord 12 are arranged in parallel, the grooves 14 of the upper chord 11 and the lower chord 12 are opposite, the pull rod 13 is arranged between the upper chord 11 and the lower chord 12 in a wavy mode and used for connecting the upper chord 11 and the lower chord 12, the pull rod 13 is provided with two groups, the two groups of pull rods 13 are arranged on two sides of the beam in parallel, and the grooves 14 are arranged between the two groups of pull rods 13 and used for accommodating the end section truss 2. The upper chord 11 is made of cold-bent inner curled channel steel, the lower chord 12 is made of cold-bent deep groove C-shaped steel, and the pull rod 13 is made of round steel.

In the upper chord 11, a number of positioning holes 15 are provided along the axis of the beam; in the lower chord 12, a locating hole 16 is provided.

The positioning hole 15 is in a shape of a long round hole, and the positioning hole 16 is in a shape of a round hole.

2. End section truss 2.

As shown in fig. 5 and 6, the end truss 2 is a single truss, and includes an upper chord member 21, a lower chord member 22, and a pull rod 23, where the upper chord member 21 is longer than the lower chord member 22, the upper chord member 21 and the lower chord member 22 are parallel to each other, the pull rod 23 is disposed between the upper chord member 21 and the lower chord member 22 in a wave-shaped manner, and is used for connecting the upper chord member 21 and the lower chord member 22, and the pull rod 23 is provided with a group. The upper chord member 21 is made of square steel pipes, the lower chord member 22 is made of flat steel, and the pull rod 23 is made of round steel.

In the upper chord 21, a positioning hole 25 is provided; in the lower chord 22, a number of locating holes 26 are provided along the axis of the beam.

The positioning hole 26 is in a shape of a long round hole, and the positioning hole 25 is in a shape of a round hole.

In another embodiment, the end of the lower chord 22 is bent to connect with the upper chord 21, and a tie rod 23 is disposed between the upper chord 21 and the lower chord 22 for connecting the two.

As shown in fig. 7 and 8, the end section truss 2 is assembled with the middle section truss 1, the upper chord member 21 of the end section truss 2 is sleeved in the groove 14 of the upper chord member 11 of the middle section truss 1, the lower chord member 22 of the end section truss 2 is sleeved in the groove 14 of the lower chord member 12 of the middle section truss 1, the overlapping length of the end section truss 2 and the middle section truss 1 is adjusted according to the requirement of the crossing length, then the positioning holes in the two upper chord members are aligned, the positioning holes in the two lower chord members are aligned, and the positioning pins 4 or the positioning bolts penetrate through the aligned positioning holes to fixedly connect the end section truss 2 with the middle section truss 1, so that the whole length of the support frame is ensured to be fixed during use.

3. The hanging member 3 is connected.

As shown in fig. 9, the end of the upper chord 21 in the end section truss 2 is provided with a connection hanger 3 for connection with the steel frame beam 5 in the storey deck. The connecting hanging piece 3 comprises a 7-shaped screw rod 31, the 7-shaped screw rod 31 comprises two rod sections, namely a first rod section 311 and a second rod section 312, and the two rod sections are vertically connected. The connection between the connection hanger 3 and the end section truss 2 is as follows:

as shown in fig. 9 and 10, the end of the upper chord member 21 in the end section truss 2 is welded and sleeved with a reinforcing member 28 for increasing the thickness of the end of the upper chord member 21 and reinforcing the strength of the end, and the reinforcing member 28 may be a steel plate; meanwhile, through holes 27 penetrating up and down are formed in the end portions, the through holes 27 are perpendicular to the axis of the upper chord member 21, the through holes 27 penetrate through the through holes 27 in the same way, the first rod sections 311 of the reinforcing member 28,7 of the I-shaped screw rods 31 penetrate through the through holes 27, and the 7-shaped screw rods 31 are locked and fixed with the upper chord member 21 through two nuts 32 which are respectively arranged on the upper side and the lower side of the upper chord member 21. The height of the second rod section 312 in the 7-shaped screw rod 31 relative to the upper chord member 21 can be adjusted through the adjusting nut 32, so that the design and construction requirements of different elevations of the floor slab are met.

After the 7-shaped screw 31 is connected, the second leg 312 of the 7-shaped screw 31 is parallel to the axis of the upper chord 21.

As shown in fig. 11, 12 and 13, when in use, the whole length of the support frame is adjusted and fixed according to the crossing length requirement between the two steel frame beams 5, the second rod section 312 of the 7-shaped screw 31 is lapped on the upper wing plate of the steel frame beam 5 in the storey laminate, and then the 7-shaped screw 31 and the steel frame beam 5 are welded and fixed. When the steel frame is disassembled, only the nut 32 is required to be removed, so that the 7-shaped screw 31 is separated from the end section truss 2, the whole support frame can be removed, and the 7-shaped screw 31 is connected with the steel frame beam 5.

4. A construction process of a support frame.

Step one, construction preparation.

Firstly, looking up a table to determine the number of the supporting frames; and then manufacturing the supporting frame in a factory, and carrying out quality inspection and acceptance.

And step two, adjusting and fixing the applicable length of the support frame on site.

According to the span between two steel frame beams 5, the length of the support frame is adjusted, and then the middle section truss 1 and the end section truss 2 are fixedly connected by the positioning pins 4.

And step three, installing a 7-shaped screw 31 on the support frame and adjusting the height.

A 7-shaped screw rod 31 is arranged at the end part of the end section truss 2, the height of the 7-shaped screw rod 31 relative to the upper chord member 21 is adjusted, and then the upper chord member is locked and fixed through a nut 32.

And fourthly, arranging the assembled support frame on the steel frame beam 5.

The support frame is hung between the two steel frame beams 5 according to the drawing requirements, and at the moment, the second rod section 312 of the 7-shaped screw 31 on the support frame is lapped on the upper wing plate of the steel frame beam 5 in the storey laminate.

And fifthly, welding the 7-shaped screw 31 and the steel frame beam 5.

The second leg 312 of the 7-shaped screw 31 is welded to the upper wing plate of the steel-frame beam 5.

And step six, manufacturing the floor slab.

Arranging a wood block on the support frame and paving a template; binding floor slab steel bars; and pouring floor slab concrete and curing.

And seventhly, dismantling the support frame.

Unscrewing the nuts 32 on the 7-shaped screws 31 separates the end section truss 2 from the adjusting 7-shaped screws, the 7-shaped screws are still connected with the steel frame beams 5, but the support frame is detached from the steel frame beams 5.

Or placing the step five before the step three, namely welding the 7-shaped screw rod 31 with the steel frame beam 5, and then connecting the 7-shaped screw rod 31 with the supporting frame.

The description of the present utility model is not particularly limited, but is conventional in the art.

The foregoing is a preferred embodiment of the present utility model, and several other simple substitutions and modifications made under the circumstances of the inventive concept should be considered as falling within the scope of the present utility model.

Claims

1. Be applied to telescopic support frame that exempts from to fall to ground of assembled steel construction floor construction, its characterized in that: the connecting hanging piece is arranged on the end section truss and is used for being connected with a floor slab; the middle-section truss comprises an upper chord, a lower chord and a pull rod, the pull rod is connected with the upper chord and the lower chord, and grooves are formed in the upper chord and the lower chord; the end section truss comprises an upper chord, a lower chord and a pull rod, and the pull rod is connected with the upper chord and the lower chord; the upper chord member and the lower chord member of the end section truss are respectively assembled in the upper chord member groove and the lower chord member groove of the middle section truss, and the end section truss can move relative to the middle section truss; the connecting hanging piece comprises a screw rod, the screw rod comprises a first rod section and a second rod section, and the two rod sections are vertically connected; in the end section truss, a through hole is formed in the end part of the upper chord member, the first rod section of the screw rod penetrates through the through hole, and the screw rod is fixed with the upper chord member through a nut.

2. The floor-free telescopic support frame applied to assembled steel structure floor construction according to claim 1, wherein the floor-free telescopic support frame is characterized in that: in the middle section truss, the length of an upper chord member is longer than that of a lower chord member, the upper chord member and the lower chord member are arranged in parallel, grooves of the upper chord member and grooves of the lower chord member are opposite, two groups of pull rods are arranged, and the two groups of pull rods are arranged on two sides of the beam in parallel.

3. The floor-free telescopic support frame applied to assembled steel structure floor construction according to claim 2, wherein the floor-free telescopic support frame is characterized in that: the upper chord member is made of cold-bent inner curled channel steel, the lower chord member is made of cold-bent deep groove C-shaped steel, and the pull rod is made of round steel.

4. The floor-free telescopic support frame applied to assembled steel structure floor construction according to claim 2, wherein the floor-free telescopic support frame is characterized in that: in the middle section truss, a plurality of positioning holes are arranged in the upper chord member and the lower chord member along the axis of the beam; in the end section truss, a plurality of positioning holes are arranged in the upper chord member and the lower chord member along the axis of the beam; the locating pins or the locating bolts penetrate through the locating holes of the two trusses and are used for connecting the middle section truss and the end section truss.

5. The floor-free telescopic support frame applied to assembled steel structure floor construction according to claim 1, wherein the floor-free telescopic support frame is characterized in that: in the end section truss, the length of an upper chord is longer than that of a lower chord, the upper chord and the lower chord are arranged in parallel, and a group of pull rods is arranged.

6. The floor-free telescopic support frame applied to assembled steel structure floor construction according to claim 5, wherein the floor-free telescopic support frame is characterized in that: the end part of the lower chord member is bent and connected with the upper chord member.

7. The floor-free telescopic support frame applied to assembled steel structure floor construction according to claim 5, wherein the floor-free telescopic support frame is characterized in that: the upper chord member is made of square steel pipes, the lower chord member is made of flat steel, and the pull rod is made of round steel.

8. The floor-free telescopic support frame applied to assembled steel structure floor construction according to claim 1, wherein the floor-free telescopic support frame is characterized in that: the end part of the upper chord member of the end section truss is welded and sleeved with a reinforcing member, and the through hole penetrates through the reinforcing member.

9. The floor-free telescopic support frame applied to assembled steel structure floor construction according to claim 1, wherein the floor-free telescopic support frame is characterized in that: the pull rod is arranged between the upper chord member and the lower chord member in a wavy manner.