CN216379539U - I-steel support frame for dismantling, supporting and hoisting - Google Patents
I-steel support frame for dismantling, supporting and hoisting Download PDFInfo
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- CN216379539U CN216379539U CN202120254604.4U CN202120254604U CN216379539U CN 216379539 U CN216379539 U CN 216379539U CN 202120254604 U CN202120254604 U CN 202120254604U CN 216379539 U CN216379539 U CN 216379539U
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Abstract
The utility model relates to the technical field of building demolition devices, and aims to solve the technical problems of manpower consumption, low efficiency, long construction period and high cost in the existing building demolition; the upper end and the lower end of the vertical rod are respectively connected with the end parts of the top connecting rod and the bottom connecting rod, the vertical rod is respectively perpendicular to the top connecting rod and the bottom connecting rod, the end parts of the bottom connecting rods are mutually connected, and the top connecting rod and the vertical rod are made of I-shaped steel; the reinforcing steel bar heads are arranged on the top connecting rod, one end of each steel wire rope is connected with the middle part of the adjacent reinforcing steel bar heads, the other end of each steel wire rope is connected with the concrete plate to be cut, and the steel wire rope is matched with a static cutting technology, so that the construction speed is high, the required manpower is less, the construction period is short, and the cost is low.
Description
Technical Field
The utility model relates to the technical field of building demolition devices, in particular to an I-shaped steel support frame for demolishing and hoisting.
Background
The supporting system of the building comprises a reinforced concrete crown beam, a waist beam, a supporting beam and a concrete plate, wherein concrete is synonymous word of concrete, the crown beam is a reinforced concrete continuous beam arranged at the top of a supporting structure at the periphery of a foundation pit, and the waist beam is a reinforced concrete beam or a steel beam arranged below the top of the supporting structure and used for transferring supporting force of the supporting structure and an anchor rod.
In a conventional dismantling scheme, the reinforced concrete crown beam, the waist beam and the support beam adopt a static cutting technology, and the concrete plate adopts a static blasting dismantling technology.
By adopting the static blasting demolition technology, an inner support frame is required to be arranged at the bottom of the concrete slab, and after the static blasting demolition, the broken stones are cleaned in a large number, a large amount of manpower is required, and the construction period is long. As shown in fig. 1, the problem of using an inner support frame at the bottom of a concrete slab when the concrete slab is removed by using a static cutting technology also requires a lot of manpower, which results in a long construction period.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems of manpower consumption, long construction period and high cost caused by low efficiency in the existing building demolition, the utility model provides an I-steel support frame for demolition hoisting, an inner support frame at the bottom of a concrete plate is optimized into the I-steel support frame for demolition hoisting, the end part of a first top connecting rod is connected with the end part of a second top connecting rod, the connecting point of the first top connecting rod and the second top connecting rod is connected with the upper end of a vertical rod, the first top connecting rod, the second top connecting rod and the vertical rod are I-steel, the lower end of the vertical rod is connected by the first bottom connecting rod and the second bottom connecting rod, a plurality of reinforcing steel bar heads are arranged on the first top connecting rod or the second top connecting rod, a limiting part for hanging a steel wire rope is formed between the two reinforcing steel bar heads, the other end of the steel wire rope is connected with the concrete plate to be cut, and the trouble of placing a common support frame below is avoided, the static cutting technology is matched, the construction speed is high, the required manpower is less, the construction period can be greatly saved, and the cost is reduced.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
an I-steel support frame for dismantling, supporting and hoisting comprises at least two first top connecting rods, at least two second top connecting rods, at least four vertical rods, at least two first bottom connecting rods, at least two second bottom connecting rods and a plurality of reinforcing steel bar heads; the end part of the first top connecting rod is connected with the end part of the second top connecting rod, the upper end of the vertical rod is connected with the end part of the first top connecting rod, and the vertical rod is perpendicular to the first top connecting rod and the second top connecting rod; the first top connecting rod is vertical to the second top connecting rod, and the first top connecting rod, the second top connecting rod and the vertical rod are I-shaped steel; the lower end of the vertical rod is respectively connected with the end part of the first bottom connecting rod and the end part of the second bottom connecting rod, the vertical rod is perpendicular to the first bottom connecting rod and the second bottom connecting rod, and the end part of the first bottom connecting rod is connected with the end part of the second bottom connecting rod; the reinforcing steel bar heads are arranged on the first top connecting rod or the second top connecting rod, and a limiting part used for limiting the steel wire rope is formed between every two adjacent reinforcing steel bar heads.
Further, still include the base, the pedestal mounting is at the lower extreme of vertical pole, the base is provided with continuous slot, the slot is used for adaptation vertical pole, first bottom connecting rod and second bottom connecting rod.
Furthermore, the base is integrally in a shape of a circular truncated cone, and the upper surface and the side surface of the base are in fillet transition.
Furthermore, the vertical rod, the first bottom connecting rod and the second bottom connecting rod are further connected with inclined struts for enhancing stability.
Furthermore, spherical buffer caps are arranged at two ends of the reinforcing steel bar head, and the surfaces of the buffer caps are smooth spherical surfaces.
Preferably, the first bottom connecting rod and the second bottom connecting rod are angle steels.
Preferably, the specification of the I-shaped steel is 20# a, and the angle steel is 50mm X50 mm equilateral angle steel.
Preferably, the length of first top connecting rod is 3200mm, and the length of second top connecting rod is 6300mm, and the length of vertical rod is 1800 mm.
Preferably, the number of the first top connecting rods is two, the number of the second top connecting rods is two, the number of the vertical rods is four, the number of the first bottom connecting rods is two, and the number of the second bottom connecting rods is two.
Preferably, the number of the reinforcing heads is sixteen.
The beneficial effects brought by the implementation of the utility model are as follows:
the utility model provides an I-steel support frame for support removal and hoisting, wherein an inner support frame at the bottom of a concrete plate is optimized into the I-steel support frame for support removal and hoisting, a limiting part for hanging a steel wire rope is arranged on the I-steel support frame, the other end of the steel wire rope is connected with the concrete plate to be cut, the trouble of placing a common support frame below the I-steel support frame is avoided, the construction speed is high by matching with a static cutting technology, the required labor is less, the construction period can be greatly saved, and the cost is reduced. The I-shaped steel has the advantages of strong bending resistance, convenience in installation, low cost and light weight. In addition, the base increases the contact area between the vertical rod and the supporting surface, so that the vertical rod is more stable, the round and fillet transition of the base is safer for a human body, and the fillet transition can make the stress distribution more uniform, so that the fatigue safety coefficient of the component is improved; the inclined strut is used to form a triangular stable structure, so that the stability of the I-shaped steel support frame is enhanced; the two ends of the reinforcing steel bar head are provided with smooth spherical buffer caps, so that the injury to a human body caused by accidental touch can be reduced.
Drawings
FIG. 1 is a schematic view illustrating a construction scheme for removing a concrete slab in the prior art;
FIG. 2 is a structural diagram of an I-steel support frame provided by an embodiment of the utility model;
FIG. 3 is a layout diagram of an I-steel support provided by an embodiment of the utility model;
figure 4 is a plan view of the concrete slabs according to the embodiment of the present invention;
FIG. 5 is an I-steel support with a base according to an embodiment of the present invention;
FIG. 6 is a diagram of a base structure according to an embodiment of the present invention;
FIG. 7 is an I-steel support frame with diagonal braces according to an embodiment of the present invention;
fig. 8 shows a reinforcement head of a buffer cap according to an embodiment of the present invention.
In the figure: an I-steel support frame 1; a concrete slab 3; a wire rope 4; a cutting position 6; a secondary beam 7; a circular hole 8; a first top connecting rod 10; a second top connecting rod 20; a reinforcing bar head 21; a buffer cap 22; a vertical rod 30; a first bottom connecting bar 40; a second bottom connecting bar 50; a base 60; a vertical rod placement location 61; a first bottom link placement location 62; a second bottom connecting rod placing location 63; a diagonal brace 70; cutting a first concrete plate A; and (4) cutting a second concrete plate B.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 2, fig. 2 is a structural view of an i-steel support frame according to an embodiment of the present invention, where the i-steel support frame 1 includes a first top connecting rod 10 and a second top connecting rod 20, the first top connecting rod 10 and the second top connecting rod 20 are located on the same plane, and an end of the first top connecting rod 10 is connected to an end of the second top connecting rod 20, specifically, in a welding manner or in a bolt structure; a plurality of groups of reinforcing steel bar heads 21 are arranged on the first top connecting rod 10 or the second top connecting rod 20 in a welding mode, the number of each group of reinforcing steel bar heads is two, and a limiting part for limiting the steel wire rope 4 is formed between the two reinforcing steel bar heads 21.
A vertical rod 30 is arranged downwards at the joint of the first top connecting rod 10 and the second top connecting rod 20, and the vertical rod 30 is perpendicular to the first top connecting rod 10 and the second top connecting rod 20.
In an embodiment of the present invention, two sets of the first top connecting rods 10 and the second top connecting rods 20 enclose a parallelogram, preferably a rectangle, that is, the first top connecting rods 10 and the second top connecting rods 20 are perpendicular to each other, and four vertical rods 30 are correspondingly disposed, and the first top connecting rods 10, the second top connecting rods 20 and the vertical rods 30 preferably adopt i-steel structural members, which may also be H-steel, C-steel, square tube steel or other types, the i-steel has a specific specification of 20# a, and the number of the reinforcement heads 21 is sixteen.
The flange is wide, the lateral rigidity is high, and the bending resistance is strong; the two surfaces of the flange are parallel to each other, so that the connection, the processing and the installation are simple and convenient; compared with the common section steel, the method has the advantages of low cost, high precision and small residual stress; compared with a concrete structure, the I-shaped steel structure can increase the use area by 6 percent, the self weight of the structure is reduced, and the internal force of the structural design is reduced.
In one embodiment of the present invention, the length of the first top connecting rod 10 is 3200mm, the length of the second top connecting rod 20 is 6300mm, and the length of the vertical rod 30 is 1800 mm.
The bottom of the four vertical rods 30 is connected with four bottom connecting rods, two first bottom connecting rods 40 and two second bottom connecting rods 50, respectively, to form a stable fixing structure. The first bottom connecting rod 40 is parallel to the first top connecting rod 10 and the second bottom connecting rod 50 is parallel to the second top connecting rod 20, i.e. the vertical rod 30 is perpendicular to the first bottom connecting rod 40 and the second bottom connecting rod 50.
In one embodiment of the present invention, the length of the first bottom connecting rod 40 is 3000mm, the length of the second bottom connecting rod 50 is 6300mm, and the first bottom connecting rod 40 and the second bottom connecting rod 50 are made of angle steel, preferably equal angle steel, and specifically equal angle steel 50mm X50 mm.
The present embodiment is illustrative of the number of components and parameters including two first top connecting rods 10, two second top connecting rods 20, four vertical rods 30, two first bottom connecting rods 40, two second bottom connecting rods 50 and sixteen tendon heads 21. It can be seen that the first top connecting rod 10, the second top connecting rod 20, the vertical rod 30, the first bottom connecting rod 40, the second bottom connecting rod 50 and the tendon head 21 can be modified or expanded according to actual needs.
Referring to fig. 5, in order to make the contact between the vertical rod 30 and the supporting surface more stable, the i-steel supporting frame with a base provided in the embodiment of the present invention shown in fig. 5 is further provided with a base 60 at the bottom of the vertical rod 30, that is, the base 60 is installed at the lower end of the vertical rod 30, so that the contact area between the vertical rod 30 and the supporting surface is increased, and the contact area is more stable.
Referring to fig. 6, fig. 6 is a structural diagram of the base according to the embodiment of the present invention, the base 60 is a circular truncated cone, and continuous grooves are formed in the circular truncated cone, and respectively include a vertical rod placement position 61 for fitting the vertical rod 30, a first bottom connecting rod placement position 62 for fitting the first bottom connecting rod 40, and a second bottom connecting rod placement position 63 for fitting the second bottom connecting rod 50.
In one embodiment of the present invention, the width of the first bottom connecting rod placing location 62 is 50mm or slightly larger, the width of the second bottom connecting rod placing location 63 is 50mm or slightly larger, and the vertical rod placing location 61 is 200mm X100 mm or slightly larger in size.
Original vertical pole 30, first bottom connecting rod 40 and second bottom connecting rod 50 are the edges and corners, because the edges and corners is comparatively sharp-pointed, safe inadequately to having the body, can cause great injury to the human body when touching carelessly. The edges and corners of the vertical rod 30, the first bottom connecting rod 40 and the second bottom connecting rod 50 are converted into an outward circular surface by the base seat 60, so that the safety of the human body is improved.
Further, the upper surface and the side surface of the base 60 are in fillet transition, so that the safety to the human body is realized, the stress distribution tends to be uniform, and the fatigue safety factor of the component is improved.
Referring to fig. 7, in order to further enhance the stability of the i-steel support frame, the inclined strut 70 is further connected between the vertical rod 30 and the first bottom connecting rod 40, and between the vertical rod 30 and the second bottom connecting rod 50, the inclined strut 70 is further connected, the vertical rod 30, the first bottom connecting rod 40 and the inclined strut 70 are enclosed to form a stable triangular structure, and the vertical rod 30, the second bottom connecting rod 50 and the inclined strut 70 are enclosed to form a stable triangular structure, so that the triangle has stability, and has the characteristics of stability, firmness and pressure resistance, thereby enhancing the stability of the i-steel support frame. The diagonal brace 70 may be angle steel or steel bar, preferably equal angle steel.
The connection point of the diagonal brace 70 to the vertical pole 30 may be at the upper end of the vertical pole 30, may be at the middle of the vertical pole 30, may be between the upper end and the middle of the vertical pole 30, and preferably, the connection point is at the upper end of the vertical pole 30.
In one embodiment of the present invention, a total of eight braces 70 are provided, i.e., two braces 70 are connected to each vertical pole 30.
It is obvious that there may be further braces 70, for example, provided between the first top connecting rod 10 and the second top connecting rod 20.
Referring to fig. 8, fig. 8 is a steel bar head of a buffer cap according to an embodiment of the present invention, in order to enhance protection measures and prevent sections at two ends of the steel bar head 21 from causing accidental injury to a human body, the two ends of the steel bar head 21 are provided with buffer caps 22, and the surfaces of the buffer caps 22 are smooth spherical surfaces, so as to reduce injury to the human body when accidentally touched.
The using method comprises the following steps:
referring to fig. 3 and 4, the concrete slab structure is cut by a method of segmenting and blocking (small area can be cut at a time), in this embodiment, a in fig. 4 represents a first concrete slab after cutting, B represents a second concrete slab after cutting, and one concrete slab 3 is cut by two blocks. During the construction, drill at four angles of concrete slabs 3 that will amputate in advance, the aperture is 50 ~ 100mm (the concrete size is adjustable) round hole 8, put I-steel support frame 1 on a supporting beam position, then adopt wire rope czochralski concrete slabs 3 through round hole 8, connect wire rope 4 in I-steel support spacing portion, prevent that concrete slabs 3 from dropping after being cut, recycle rope saw machine cutting concrete slabs 3, after the cutting is accomplished, adopt the tower crane to go out the concrete slabs 3 handling that the cutting got off.
The construction sequence is as follows: segmented and segmented positioning → drilling → placing an I-shaped steel support frame → steel wire rope straight pulling concrete slabs → construction machinery approach → cutting concrete slabs → field cleaning, tower crane hoisting → material and machinery transfer → entering the next segment for construction.
The beneficial effects brought by the implementation of the utility model are as follows:
the utility model provides an I-steel support frame for support removal and hoisting, wherein an inner support frame at the bottom of a concrete plate is optimized into the I-steel support frame for support removal and hoisting, a limiting part for hanging a steel wire rope is arranged on the I-steel support frame, the other end of the steel wire rope is connected with the concrete plate to be cut, the trouble of placing a common support frame below the I-steel support frame is avoided, the construction speed is high by matching with a static cutting technology, the required labor is less, the construction period can be greatly saved, and the cost is reduced. The I-shaped steel has the advantages of strong bending resistance, convenience in installation, low cost and light weight. The base increases the contact area between the vertical rod and the supporting surface, so that the vertical rod is more stable, the round and fillet transition of the base is safer for a human body, and the fillet transition can make the stress distribution more uniform, so that the fatigue safety coefficient of a component is improved; the inclined strut is used to form a triangular stable structure, so that the stability of the I-shaped steel support frame is enhanced; the two ends of the reinforcing steel bar head are provided with smooth spherical buffer caps, so that the injury to a human body caused by accidental touch can be reduced.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications of the embodiments and/or equivalent arrangements of some features may be made without departing from the spirit and scope of the utility model.
Claims (5)
1. The I-steel support frame for dismantling, supporting and hoisting is characterized by comprising at least two first top connecting rods (10), at least two second top connecting rods (20), at least four vertical rods (30), at least two first bottom connecting rods (40), at least two second bottom connecting rods (50) and a plurality of reinforcing steel bar heads (21);
the end part of the first top connecting rod (10) is connected with the end part of the second top connecting rod (20), the upper end of the vertical rod (30) is connected with the end part of the first top connecting rod (10), and the vertical rod (30) is perpendicular to the first top connecting rod (10) and the second top connecting rod (20); the first top connecting rod (10) is perpendicular to the second top connecting rod (20), and the first top connecting rod (10), the second top connecting rod (20) and the vertical rod (30) are I-shaped steel;
the lower end of the vertical rod (30) is respectively connected with the end part of the first bottom connecting rod (40) and the end part of the second bottom connecting rod (50), the vertical rod (30) is perpendicular to the first bottom connecting rod (40) and the second bottom connecting rod (50), and the end part of the first bottom connecting rod (40) is connected with the end part of the second bottom connecting rod (50);
the reinforcing steel bar heads (21) are arranged on the first top connecting rod (10) or the second top connecting rod (20), a limiting part used for limiting the steel wire rope (4) is formed between every two adjacent reinforcing steel bar heads (21), the first bottom connecting rod (40) and the second bottom connecting rod (50) are angle steel, the specification of the I-shaped steel is 20# a, and the angle steel is 50mm X50 mm equal-side angle steel.
2. The I-steel support frame for demolition hoisting according to claim 1, further comprising a base (60), wherein the base (60) is installed at the lower end of the vertical rod (30), the base (60) is provided with a continuous groove for fitting the vertical rod (30), the first bottom connecting rod (40) and the second bottom connecting rod (50).
3. The I-steel support frame for hoisting and demolishing according to claim 2, wherein the base (60) is generally in a shape of a truncated cone, and the upper surface and the side surface of the base (60) are in rounded transition.
4. The I-steel support frame for demolition hoisting according to claim 3, wherein the vertical rod (30) is further connected with a diagonal brace (70) for enhancing stability with the first bottom connecting rod (40) and the second bottom connecting rod (50).
5. The I-steel support frame for hoisting and demolishing according to claim 4, wherein the two ends of the steel bar head (21) are further provided with spherical buffer caps (22), and the surfaces of the buffer caps (22) are smooth spherical surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120254604.4U CN216379539U (en) | 2021-01-29 | 2021-01-29 | I-steel support frame for dismantling, supporting and hoisting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120254604.4U CN216379539U (en) | 2021-01-29 | 2021-01-29 | I-steel support frame for dismantling, supporting and hoisting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216379539U true CN216379539U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120254604.4U Active CN216379539U (en) | 2021-01-29 | 2021-01-29 | I-steel support frame for dismantling, supporting and hoisting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216379539U (en) |
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2021
- 2021-01-29 CN CN202120254604.4U patent/CN216379539U/en active Active
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