CN115262858B - I-steel nondestructive combination device and construction method - Google Patents
I-steel nondestructive combination device and construction method Download PDFInfo
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- CN115262858B CN115262858B CN202211019935.5A CN202211019935A CN115262858B CN 115262858 B CN115262858 B CN 115262858B CN 202211019935 A CN202211019935 A CN 202211019935A CN 115262858 B CN115262858 B CN 115262858B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
- E04B1/34315—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts
- E04B1/34326—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts mainly constituted by longitudinal elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
- E04B1/5812—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
- E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
- E04C2003/0417—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts demountable
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
- E04C2003/0439—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the cross-section comprising open parts and hollow parts
Abstract
The invention provides a nondestructive combination device for I-steel, which belongs to the technical field of building construction and comprises I-steel, T-shaped fasteners and groove-shaped connecting plates, wherein the two I-steel are overlapped, a plurality of groove-shaped connecting plates are clamped on two sides of the two I-steel at intervals, and the T-shaped fasteners are clamped between the two I-steel and are fixed on the side edges of the groove-shaped connecting plates. The radius of gyration of the cross section of the combined device is greatly improved, the bearing capacity of the combined cross section is correspondingly and greatly improved compared with that of two single components with the same area, and the components which do not meet the supporting conditions originally can be formed into the components with excellent supporting bearing capacity through the combined connection technology.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a nondestructive combination device for I-steel and a construction method.
Background
The conventional method for combining I-steel in civil engineering is as follows: the radius of gyration of I-steel in the y-axis direction of the work 16a is smaller, the work is conventionally used as a member which mainly bends such as a beam and the like, in order to meet the requirement of bearing capacity of a back-roof support, two I-steels are spliced and combined into a member with a large section, the radius of gyration in the y-axis direction is greatly improved, the bearing capacity of the combined member is greatly improved, and the conventional splicing and combining technology is electric welding.
Disadvantages of the prior art: (1) The welding workload of the I-steel welding combination is large, the welding efficiency is low, and the consumed working hours are more. (2) I-steel welding belongs to special operation, and special operation workers are required to operate, so that labor cost is high. (3) The I-steel can not be disassembled again after being welded and combined, if the I-steel is to be disassembled, oxygen flame cutting is needed, the flange loss of the I-steel is large, the I-steel is difficult to recycle, and the I-steel is uneconomical and not environment-friendly.
In order to reduce the shrinkage crack problem of concrete in civil building civil construction sites, the basement roof in large area needs to be divided into a plurality of areas by adopting a post-pouring belt, and the stress generated by shrinkage of the concrete is released by adopting the post-pouring belt, so that the shrinkage stress of the concrete slab in the roof is smaller than the tensile strength of the concrete, and the concrete is ensured not to have cracks visible to naked eyes. The telescoping post-cast strip is typically closed 60 days after the concrete is poured, during which time the basement roof through which the post-cast strip passes must be reinforced by supporting back-roof because of the lack of load carrying capacity. Each construction unit has a set of methods for the back-roof reinforcement of the post-cast strip, but the methods are different in size. The reinforced materials generally comprise a conventional fastener type steel pipe frame, steel pipe profile steel, I-steel welding combination members and the like.
The steel pipe frame is used as a post-pouring belt support, because the diameter of the steel pipe is only 48mm, the vertical rods, the horizontal cross rods and the scissor supports are connected by adopting the fasteners to form a stable and reliable stress support system, the space between the vertical rods is relatively dense, generally about 1000mm, and the space of the basement is isolated by the post-pouring belt support frame body, so that the transportation of construction materials, the passing of operators, the installation of equipment pipelines and the like are influenced.
The steel pipe profile steel is adopted as a post-pouring belt support, the bearing capacity of the steel pipe profile steel is higher, the vertical rod distance can be set to be sparse, the problem of inconvenient construction caused by a fastener type steel pipe frame can be solved, but the steel pipe profile steel is an on-site unusual material and generally needs to be purchased again from the market; besides the application of the post-cast strip back-roof support, the steel pipe profile steel used in other places is less, and after the post-cast strip is closed, the steel pipe profile steel can only be stacked on site due to no other application, and the benefit is not high due to low material utilization rate.
The bearing capacity performance of the I-steel welding combined member is different from that of steel pipe section steel, a large amount of I-steel is generally stored in a construction unit, the I-steel is adopted as a back-roof support, so that the existing I-steel material can be effectively utilized, but the I-steel welding combined member cannot be disassembled again for use, if the I-steel welding combined member is required to be disassembled, oxygen flame cutting is required, the flange loss of the I-steel is large, the I-steel is difficult to recycle, and the I-steel welding combined member is uneconomical and not environment-friendly.
Disclosure of Invention
The invention aims to provide a nondestructive I-steel combination device and a construction method, which solve the technical problems that the existing building reinforcement material is high in cost and cannot be recycled.
Two I-steel bars are connected into a rod piece with a combined section through a simple fastener and a steel plate, the turning radius of the combined section in the weak axis direction is greatly improved, and the overall stable bearing capacity is improved. Because the flanges of the two I-shaped sections are not welded, the local structure must meet the requirement of stability in order to ensure that the combined sections are stressed cooperatively when supported.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a nondestructive composite set of I-steel, including I-steel, T type fastener and cell type connecting plate, two I-steel overlap each other and set up, a plurality of cell type connecting plate interval card is established on the both sides of two I-steels, T type fastener card is established between two I-steel to the side of fixed cell type connecting plate, cell type connecting plate is used for the both sides of the fixed two I-steels of buckle, T type fastener is used for the outside of buckle cell type connecting plate, makes cell type connecting plate and I-steel not separate, T type fastener sets up to the couple and is the fastener.
Further, the T-shaped fastener comprises a T-shaped fastener web plate and a T-shaped fastener flange, the T-shaped fastener web plate is in an L-shaped structure, one end of the T-shaped fastener web plate is connected with the T-shaped fastener flange, the T-shaped fastener flange is clamped on the inner wall of the joint of the two I-shaped steel plates, and the T-shaped fastener web plate is clamped on the outer side of the side edge of the groove-shaped connecting plate.
Further, T-shaped fastener web round holes are formed in the T-shaped fastener web, and iron fixtures are arranged to penetrate through the T-shaped fastener web round holes to fix the T-shaped fasteners.
Further, the groove-shaped connecting plates are arranged to be of groove-shaped steel structures, and a plurality of groove-shaped connecting plates are arranged on two I-shaped steel plates at equal intervals and are clamped.
Further, the scheme further comprises a wood wedge, wherein the wood wedge is arranged in a gap at the joint of the two I-steels, and the upper end and the lower end of the wood wedge are tightly attached to the joint of the two I-steels.
A construction method of a nondestructive assembly of i-steel, the method comprising the steps of:
step 1: transversely placing the skids on the ground every 0.8-1.2m, and then placing a first I-steel on the skids, wherein the long sides of the I-steel are parallel to the ground;
step 2: positioning marks of the groove-shaped connecting plates are formed on two flanges of the I-steel every 600mm by adopting a steel ruler and a red pencil, the width of the groove-shaped connecting plates is 100mm, the clear distance is 500mm, and the marks are retested after the positioning marks on the flanges of the I-steel are finished;
step 3: t-shaped fasteners are respectively placed on two sides of the to-be-placed groove-shaped connecting plate, the web plates of the T-shaped fasteners are perpendicular to the flanges of the I-steel, and iron nails for temporary fixation are worn in round holes of the web plates of the T-shaped fasteners;
step 4: after all the T-shaped fasteners are placed and temporarily fixed, a second I-steel is placed, and the second I-steel is placed in parallel with the first I-steel;
step 5: placing a groove-type connecting plate at the original marked position, and buckling the outer flanges of the two I-beams;
step 6: a wood wedge is inserted between the gaps of the joint positions of the two I-shaped steel flanges, so that the wood wedge can be clamped, and then the wedge is knocked by an iron hammer from one end of the I-shaped steel to the other end, so that the groove-shaped connecting plate cannot loosen at all;
step 7: the notch of the web plate of the T-shaped fastener is clamped into the groove-shaped connecting plate, and then the T-shaped fastener is tightly knocked by an iron hammer under the condition of no looseness.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the radius of gyration of the section of the combined device is greatly improved, the requirement that the slenderness ratio of the supporting member is not more than 150 is met, the supporting bearing capacity of the combined section is greatly improved compared with the bearing capacity of two single members with the same area, the stable bearing capacity of the supporting member is greatly improved, the member which does not meet the supporting condition originally can be changed into the member with excellent supporting bearing capacity through the combined connection technology, the welding-free construction method is adopted, the special qualification requirement of special operation workers is not needed, the I-steel combined installation is fast and convenient, the connection is reliable, the popularization is convenient, the disassembly is convenient, the oxygen flame cutting is not needed, the I-steel is not damaged during the disassembly, the repeated utilization is realized, and the cost is effectively reduced.
Drawings
FIG. 1 is a side view of the I-beam attachment assembly of the present invention;
FIG. 2 is a schematic view of the A-A structure of FIG. 1;
FIG. 3 is a schematic view of the B-B structure of FIG. 2;
FIG. 4 is a schematic view of a T-shaped fastener structure according to the present invention;
fig. 5 is a sectional view of a double i-steel assembly according to the present invention.
In the attached drawings, 1-I-steel; a 2-T fastener; 2-1-T fastener webs; 2-2-T fastener flanges; 2-3-T fastener web round holes; 3-groove type connecting plates; 4-wood wedge.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.
As shown in FIG. 1, the nondestructive assembly device for the I-steel comprises I-steel pieces 1, T-shaped fasteners 2 and groove-shaped connecting plates 3, wherein the two I-steel pieces 1 are overlapped, a plurality of groove-shaped connecting plates 3 are clamped on two sides of the two I-steel pieces 1 at intervals, the T-shaped fasteners 2 are clamped between the two I-steel pieces 1, and the side edges of the groove-shaped connecting plates 3 are fixed. The I-steel 1 is I-steel of a worker 16a, and a steel ruler and a red pencil which are used for measuring, positioning and dividing the spacing of the groove-shaped connecting plate are also needed in concrete construction, so that the iron hammer for novel connecting fastener construction is used for assisting the skid for I-steel combined connection construction. The groove-shaped connecting plate 3 is used for buckling and fixing two sides of the two I-shaped steels 1, the T-shaped fastener 2 is used for buckling the outer side of the groove-shaped connecting plate 3, so that the groove-shaped connecting plate 3 is not separated from the I-shaped steels 1, and the T-shaped fastener 2 is arranged as a hook to be a fastener.
The width of the groove-shaped connecting plate 3 is 100mm, the clear distance is 500mm, and the calculation principle is illustrated by taking a work 16a combined section member with the length of 3.5m as an example:
single worker 16a: material Q235B radius of gyration iy=1.89 cm moment of inertia iy=93 cm4 area a=26.1 cm2
Ratio of slendernessDoes not satisfy the b-class section stability factor->
Bearing capacity of
Double I-steel combined section 2 worker 16a, as shown in FIG. 5: material Q235B moment of inertia iy=93 cm4 area a= 2X26.1 =52.2cm2
Radius of gyrationSlenderness ratio->Satisfy the b-class section stability coefficient->
Bearing capacity of
After the I-steel of the work 16a is combined, the turning radius of the section is increased by 2.53 times, the requirement that the slenderness ratio of the supporting member is not more than 150 is met, the supporting bearing capacity of the combined section is increased by 3.42 times compared with that of two single members with the same area, the stable bearing capacity of the supporting member is greatly improved, and the member which does not meet the supporting condition originally can be changed into a member with excellent supporting bearing capacity through the combined connection technology.
In the embodiment of the invention, as shown in fig. 4, the T-shaped fastener 2 comprises a T-shaped fastener web plate 2-1 and a T-shaped fastener flange 2-2, the T-shaped fastener web plate 2-1 is in an L-shaped structure, one end of the T-shaped fastener web plate 2-1 is connected with the T-shaped fastener flange 2-2, the T-shaped fastener flange 2-2 is clamped on the inner wall of the joint of the two I-shaped steels 1, and the T-shaped fastener web plate 2-1 is clamped on the outer side of the side edge of the groove-shaped connecting plate 3.
The device utilizes the existing I-steel material in scene to the maximum extent to use as the supporting member, need not to purchase again, improves the utilization ratio of current material. Avoiding the influence on the transportation of construction materials, the walking of operators, the installation of equipment pipelines and the like. The efficiency of I-steel connection combination connection construction is improved, and the artificial timeliness is improved. The I-steel can be separated and disassembled in a nondestructive way after being combined and connected, the I-steel can be reused, the energy is saved, the environment is protected, the cost is reduced and the efficiency is improved in construction management.
In the embodiment of the invention, a T-shaped fastener web plate round hole 2-3 is arranged on a T-shaped fastener web plate 2-1, and a iron stator is arranged to pass through the T-shaped fastener web plate round hole 2-3 to fix the T-shaped fastener 2. The T-shaped fastener web round hole 2-3 is arranged on one side of the connecting handle, so that the function of buckling is realized after the iron is inserted.
In the embodiment of the invention, the groove-shaped connecting plates 3 are arranged as groove-shaped steel structures, and a plurality of groove-shaped connecting plates 3 are arranged on two I-shaped steel pieces 1 at equal intervals and are clamped.
In the embodiment of the invention, the scheme further comprises a wood wedge 4, wherein the wood wedge 4 is arranged in a gap at the joint of the two I-steel pieces 1, and the upper end and the lower end of the wood wedge 4 are tightly attached to the joint of the two I-steel pieces 1.
The construction method of the nondestructive combination of the I-steel comprises the following steps:
step one: and transversely placing the skids on the ground at intervals of about 1m, and then placing the first I-steel on the skids, wherein the long sides of the I-steel are parallel to the ground.
Step two: the steel rule and the red pencil are adopted to make a positioning mark of the groove-shaped connecting plate every 600mm on the two flanges of the I-steel, the width of the groove-shaped connecting plate is 100mm, the clear distance is 500mm, and the mark is retested after the positioning mark on the flange of the I-steel is finished.
Step three: t-shaped fasteners are respectively placed on two sides of the to-be-placed groove-shaped connecting plate, the web plates of the T-shaped fasteners are perpendicular to the flanges of the I-steel, and iron nails for temporary fixation are threaded into round holes of the web plates of the T-shaped fasteners.
Step four: and after all the T-shaped fasteners are placed and temporarily fixed, a second I-steel is placed, and the second I-steel is placed in parallel with the first I-steel.
Step five: and placing a groove-type connecting plate at the original marked position, and buckling the outer flanges of the two I-beams.
Step six: and a wooden wedge is inserted into a gap between the two I-shaped steel flanges at the joint position, so that the wooden wedge can be clamped, and then the wedge is knocked by an iron hammer from one end of the I-shaped steel to the other end, so that the groove-shaped connecting plate cannot loosen at all.
Step seven: the notch of the web plate of the T-shaped fastener is clamped into the groove-shaped connecting plate, and then the T-shaped fastener is tightly knocked by an iron hammer under the condition of no looseness.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (6)
1. The nondestructive combination device for the I-steel is characterized in that: including I-steel (1), T type fastener (2) and groove type connecting plate (3), two I-steel (1) are overlapped and are set up mutually, a plurality of groove type connecting plate (3) interval card is established on the both sides of two I-steel (1), T type fastener (2) card is established between two I-steel (1) to the side of fixed groove type connecting plate (3), groove type connecting plate (3) are used for the both sides of the fixed two I-steel of buckle (1), T type fastener (2) are used for the outside of buckle groove type connecting plate (3), make groove type connecting plate (3) and I-steel (1) not separate, T type fastener (2) set up to the couple and are the fastener.
2. The i-steel nondestructive assembly of claim 1 wherein: t type fastener (2) include T type fastener web (2-1) and T type fastener edge of a wing (2-2), and T type fastener web (2-1) set up to "L" type structure, and the one end and the T type fastener edge of a wing (2-2) of T type fastener web (2-1) are connected, and the inner wall in two I-steel (1) junction is established to T type fastener edge of a wing (2-2) card, and the side outside in groove type connecting plate (3) is established to T type fastener web (2-1) card.
3. The i-steel nondestructive assembly of claim 2 wherein: t-shaped fastener web holes (2-3) are formed in the T-shaped fastener web (2-1), and iron is arranged to penetrate through the T-shaped fastener web holes (2-3) to fix the T-shaped fastener (2).
4. The i-steel nondestructive assembly of claim 1 wherein: the groove-shaped connecting plates (3) are arranged to be groove-shaped steel structures, and a plurality of groove-shaped connecting plates (3) are arranged on two I-shaped steels (1) at equal intervals and are clamped.
5. The i-steel nondestructive assembly of claim 1 wherein: the wood wedge (4) is arranged in a gap at the joint of the two I-beams (1), and the upper end and the lower end of the wood wedge (4) are tightly attached to the joint of the two I-beams (1).
6. The construction method of the nondestructive assembly device for the I-steel according to claim 1, wherein the construction method comprises the following steps: the method comprises the following steps:
step 1: transversely placing the skids on the ground every 0.8-1.2m, and then placing a first I-steel on the skids, wherein the long sides of the I-steel are parallel to the ground;
step 2: positioning marks of the groove-shaped connecting plates are formed on two flanges of the I-steel every 600mm by adopting a steel ruler and a red pencil, the width of the groove-shaped connecting plates is 100mm, the clear distance is 500mm, and the marks are retested after the positioning marks on the flanges of the I-steel are finished;
step 3: t-shaped fasteners are respectively placed on two sides of the to-be-placed groove-shaped connecting plate, the web plates of the T-shaped fasteners are perpendicular to the flanges of the I-steel, and iron nails for temporary fixation are worn in round holes of the web plates of the T-shaped fasteners;
step 4: after all the T-shaped fasteners are placed and temporarily fixed, a second I-steel is placed, and the second I-steel is placed in parallel with the first I-steel;
step 5: placing a groove-type connecting plate at the original marked position, and buckling the outer flanges of the two I-beams;
step 6: a wood wedge is inserted between the gaps of the joint positions of the two I-shaped steel flanges, so that the wood wedge can be clamped, and then the wedge is knocked by an iron hammer from one end of the I-shaped steel to the other end, so that the groove-shaped connecting plate cannot loosen at all;
step 7: the notch of the web plate of the T-shaped fastener is clamped into the groove-shaped connecting plate, and then the T-shaped fastener is tightly knocked by an iron hammer under the condition of no looseness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211019935.5A CN115262858B (en) | 2022-08-24 | 2022-08-24 | I-steel nondestructive combination device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211019935.5A CN115262858B (en) | 2022-08-24 | 2022-08-24 | I-steel nondestructive combination device and construction method |
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| CN115262858A CN115262858A (en) | 2022-11-01 |
| CN115262858B true CN115262858B (en) | 2023-09-29 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE664546A (en) * | 1964-04-27 | 1965-11-26 | ||
| US4123887A (en) * | 1977-07-06 | 1978-11-07 | Weinar Roger N | Strengthening of channel shaped building columns and beams |
| AU8943082A (en) * | 1981-10-16 | 1983-04-21 | Turner, G.J. | Structural beam/stud |
| US5553437A (en) * | 1990-05-03 | 1996-09-10 | Navon; Ram | Structural beam |
| CN109138270A (en) * | 2017-06-16 | 2019-01-04 | 河南天丰钢结构建设有限公司 | A kind of steel construction boundling system combined member |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8291673B2 (en) * | 2009-10-06 | 2012-10-23 | Straight Holdings, Llc | Dust control cover for channel |
-
2022
- 2022-08-24 CN CN202211019935.5A patent/CN115262858B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE664546A (en) * | 1964-04-27 | 1965-11-26 | ||
| US4123887A (en) * | 1977-07-06 | 1978-11-07 | Weinar Roger N | Strengthening of channel shaped building columns and beams |
| AU8943082A (en) * | 1981-10-16 | 1983-04-21 | Turner, G.J. | Structural beam/stud |
| US5553437A (en) * | 1990-05-03 | 1996-09-10 | Navon; Ram | Structural beam |
| CN109138270A (en) * | 2017-06-16 | 2019-01-04 | 河南天丰钢结构建设有限公司 | A kind of steel construction boundling system combined member |
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|---|---|
| CN115262858A (en) | 2022-11-01 |
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