CN108560822B - Novel truss - Google Patents
Novel truss Download PDFInfo
- Publication number
- CN108560822B CN108560822B CN201810621843.1A CN201810621843A CN108560822B CN 108560822 B CN108560822 B CN 108560822B CN 201810621843 A CN201810621843 A CN 201810621843A CN 108560822 B CN108560822 B CN 108560822B
- Authority
- CN
- China
- Prior art keywords
- web member
- truss
- bending
- length direction
- web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 238000005452 bending Methods 0.000 claims abstract description 32
- 238000003466 welding Methods 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 229910000679 solder Inorganic materials 0.000 abstract 2
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
-
- 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
-
- 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
-
- 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
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0495—Truss like structures composed of separate truss elements the truss elements being located in several non-parallel surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The utility model provides a novel truss includes the violently pipe, and violently pipe bilateral symmetry sets up the web member, and each web member is respectively by a reinforcing bar continuous bending type and constitutes, and the department of buckling at both ends about each web member is convex, is the straight-bar between the convex buckling at both ends about the web member, and the convex both ends and the straight-bar juncture of each department of buckling of web member upper end are respectively through first solder joint and second solder joint and violently pipe outer wall welding. The included angle between the circle center of the circular arc at each bending part of the upper end of the web member and the connecting line of the two welding spots is 28-65 degrees. The invention has the advantages that: the welding part of the transverse pipe and the web member of the truss avoids the bending area of the web member, and the force transmission parts of the web member are all linear steel bars, so that the force transmission performance between the web member and the transverse pipe of the truss can be effectively improved, and the rigidity of the truss is fundamentally improved.
Description
Technical Field
The invention relates to a building component, in particular to a novel truss.
Background
Traditional building truss comprises upper chord steel bars and web member steel bars on two sides through mutual welding, welding points between the web member steel bars and the upper chord steel bars are arranged at the top ends of arc-shaped bending parts on the upper portions of the web member steel bars, and due to the fact that bending sections of the web member steel bars are elastic, rigidity is poor, the web member steel bars are easy to flatten, pressure and tension cannot be effectively transmitted between the upper chord steel bars and the web member steel bars, and accordingly overall rigidity of the truss is poor. In order to improve the overall rigidity of the truss, a technical scheme that steel pipes are used for replacing the winding steel bars is proposed by a person skilled in the art, the rigidity of the steel pipes is utilized to strengthen the truss, but welding points of web members and the steel pipes of the structure are still arranged at the top ends of bent positions on the upper parts of the web member steel bars, and the conduction capacity of the web members is still poor, so that the rigidity of the truss can not be improved fundamentally.
Disclosure of Invention
The invention aims to provide a novel truss, which can effectively improve the force conduction performance between the web members and the steel pipes of the truss and fundamentally improve the rigidity of the truss.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme: the novel steel bar type steel bar bending machine comprises a transverse tube, web members are symmetrically arranged on two sides of the transverse tube and are respectively formed by continuously bending a steel bar, bending parts at the upper end and the lower end of each web member are arc-shaped, a straight rod is arranged between arc-shaped bending parts at the upper end and the lower end of each web member, and junction parts between the arc-shaped two ends of each bending part at the upper end of each web member and the straight rod are welded with the outer wall of the transverse tube through a first welding point and a second welding point. The included angle between the circle center of the circular arc at each bending part of the upper end of the web member and the connecting line of the two welding spots is 28-65 degrees. The bottom plate is arranged below the transverse pipe and connected with the lower part of the web member. The bottom plate is a steel plate, and the steel plate is welded with the lower end of the web member. The bottom plate is a concrete plate, the lower part of the web member is embedded in the concrete plate, a plurality of longitudinal steel bars are arranged in the concrete plate, the length direction of each longitudinal steel bar is parallel to the length direction of the transverse pipe, transverse steel bars are arranged in the concrete plate at the bending position of the lower end of each web member, the length direction of each transverse steel bar is perpendicular to the length direction of each longitudinal steel bar, each transverse steel bar penetrates through the inner side of the bending position of the lower end of the web member, and the transverse steel bars are in contact with one side of each longitudinal steel bar far away from the transverse pipe. The cross section of the transverse tube is hollow oval or oblong, and web members on two sides of the transverse tube are respectively positioned at two ends of the oval or oblong in the length direction. And the transverse tube is filled with hard materials.
The invention has the advantages that: the welding part of the transverse pipe and the web member of the truss avoids the bending area of the web member, and the force transmission parts of the web member are all linear steel bars, so that the force transmission performance between the web member and the transverse pipe of the truss can be effectively improved, and the rigidity of the truss is fundamentally improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a left-hand structural schematic of FIG. 1;
FIG. 3 is a schematic view of the structure of the truss of the present invention connected to a concrete floor;
FIG. 4 is a left side schematic view of FIG. 3;
FIG. 5 is a schematic view of the structure of FIG. 2 wherein the cross tube is an oval tube;
Fig. 6 is a schematic view of the structure shown in fig. 2, wherein the transverse tube is an oblong tube.
Detailed Description
The novel truss comprises a transverse pipe 1, web members 2 are symmetrically arranged on two sides of the transverse pipe 1, each web member is formed by continuously bending a steel bar, bending positions of the upper end and the lower end of each web member 2 are arc-shaped, straight rods are arranged between arc-shaped bending positions of the upper end and the lower end of each web member 2, and junction positions of the arc-shaped two ends of each bending position of the upper end of each web member and the straight rods are welded with the outer wall of the transverse pipe 1 through a first welding point 3 and a second welding point 4. The welding part of the transverse pipe 1 and the web member 2 of the truss avoids the bending area of the web member 2, the force transmission parts of the web member 2 are all linear steel bars, the defects that the web member arc section steel bars are easy to deform and cannot directly transmit force are overcome, the tension and the pressure are directly transmitted, the force transmission is direct, the bearing capacity is improved, the force transmission performance between the web member 2 and the transverse pipe 1 of the truss can be effectively improved, and the rigidity of the truss is fundamentally improved.
In order to ensure that the bending part at the upper end of the web member 2 cannot be excessively bent to cause the damage of the strength of the web member steel bar, and ensure that the straight rod part of the web member 2 has enough supporting strength, the following technical scheme can be adopted: the included angle between the circle center of the circular arc at each bending part of the upper end of the web member 2 and the connecting line of the two welding spots is 28-65 degrees. Wherein the preferred structure is: the angle between the circular arc center of each bending part of the upper end of the web member 2 and the connecting line of the two welding spots is 45 degrees, the radian of the circular arc part of the web member 2 is gentle, the processing difficulty is low, and the strength cannot be lost after bending.
The truss disclosed by the invention can be connected with a bottom plate to form a truss laminated plate member, and the truss laminated plate member has the structure that: a bottom plate is arranged below the transverse pipe 1 and connected with the lower part of the web member 2. The base plate may be made of various materials, for example, the base plate may be a steel plate, and the steel plate is welded to the lower end of the web member 2. The bottom plate can also be concrete slab 5, and web member 2 lower part is pre-buried in concrete slab 5, and concrete slab 5 is inside to set up many longitudinal reinforcement 6, and the length direction of each longitudinal reinforcement 6 is all parallel with the length direction of violently managing 1, sets up horizontal reinforcing bar 7 in the concrete slab 5 of the department of buckling of each web member 2 lower extreme, and each horizontal reinforcing bar 7 length direction is all perpendicular with the length direction of longitudinal reinforcement 6, and each horizontal reinforcing bar 7 is passed from web member 2 lower extreme department inboard of buckling respectively, and the contact of one side that is away from violently managing 1 is kept away from with each longitudinal reinforcement 6 to horizontal reinforcing bar. The structure forms a net structure in the concrete slab 5 through the reinforcing steel bars, on one hand, the strength of the concrete slab 5 is ensured, and on the other hand, the net reinforcing steel bars and the bending part of the lower end of the web member form a limit, so that the connection strength of the web member 2 and the concrete slab 5 is enhanced.
The transverse tube can adopt a tube body with various shapes such as a round shape, a rectangular shape and the like, wherein the preferred structure is as follows: the cross section of the transverse tube 1 is hollow oval or oblong, and web members 2 on two sides of the transverse tube 1 are respectively positioned at two ends of the oval or oblong in the length direction. The structure can effectively reduce the overall height of the truss and improve the utilization rate of the internal space of the building under the condition of not reducing the bearing capacity of the transverse pipe 1, and can increase the distance between the truss and the bottom plate or other building components, thereby bringing convenience to pipeline arrangement.
In order to further increase the rigidity of the truss, the transverse tube 1 may be filled with a hard material. The hard material can be various materials such as concrete, cement mortar and the like.
Claims (6)
1. A novel truss, characterized in that: the novel steel plate bending machine comprises a transverse pipe (1), wherein web members (2) are symmetrically arranged on two sides of the transverse pipe (1) and are respectively formed by continuously bending a steel bar, bending parts at the upper end and the lower end of each web member (2) are arc-shaped, straight rods are arranged between arc-shaped bending parts at the upper end and the lower end of each web member (2), a first welding point (3) and a second welding point (4) are arranged at the arc-shaped two ends of each bending part at the upper end of each web member, the first welding point (3) and the second welding point (4) are positioned at the junction of the arc-shaped and the straight rods at each bending part at the upper end of each web member, each web member (2) is welded with the outer wall of the transverse pipe (1) through the first welding point (3) and the second welding point (4), and the welding part of the web member (1) avoids the bending area of the web member (2);
the included angle between the circle center of the circular arc at each bending part of the upper end of the web member (2) and the connecting line of the two welding spots is 28-65 degrees.
2. A novel truss as defined in claim 1 wherein: the bottom plate is arranged below the transverse pipe (1) and connected with the lower part of the web member (2).
3. A novel truss as defined in claim 2 wherein: the bottom plate is a steel plate, and the steel plate is welded with the lower end of the web member (2).
4. A novel truss as defined in claim 2 wherein: the bottom plate is concrete slab (5), pre-buried in concrete slab (5) in web member (2) lower part, inside many longitudinal reinforcement (6) that set up of concrete slab (5), the length direction of each longitudinal reinforcement (6) is all parallel with the length direction of violently managing (1), set up horizontal reinforcing bar (7) in concrete slab (5) of the department of buckling of each web member (2) lower extreme, each horizontal reinforcing bar (7) length direction is all perpendicular with the length direction of longitudinal reinforcement (6), each horizontal reinforcing bar (7) are passed from web member (2) lower extreme buckling department inboard respectively, one side contact that horizontal pipe (1) was kept away from to horizontal reinforcing bar and each longitudinal reinforcement (6).
5. A novel truss as defined in claim 1 wherein: the cross section of the transverse tube (1) is hollow oval or oblong, and web members (2) at two sides of the transverse tube (1) are respectively positioned at two ends of the oval or oblong in the length direction.
6. A novel truss according to any of claims 1,2 or 5 wherein: the transverse tube (1) is filled with hard materials.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100522 | 2017-08-30 | ||
| CN2017211005224 | 2017-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108560822A CN108560822A (en) | 2018-09-21 |
| CN108560822B true CN108560822B (en) | 2024-04-26 |
Family
ID=63554079
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810621843.1A Active CN108560822B (en) | 2017-08-30 | 2018-06-15 | Novel truss |
| CN201820933585.6U Active CN208430700U (en) | 2017-08-30 | 2018-06-15 | A kind of novel truss |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820933585.6U Active CN208430700U (en) | 2017-08-30 | 2018-06-15 | A kind of novel truss |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108560822B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560822B (en) * | 2017-08-30 | 2024-04-26 | 张立琦 | Novel truss |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120203A (en) * | 1998-10-15 | 2000-04-25 | Toshio Takemoto | Reinforced concrete hollow slab and its construction |
| CN101684673A (en) * | 2009-08-26 | 2010-03-31 | 天津市建科机械制造有限公司 | Reinforcement bar truss mould plate and welding process |
| CN105220805A (en) * | 2015-10-14 | 2016-01-06 | 山东隆和节能科技股份有限公司 | The superimposed sheet base plate of steel bar girder and embedded bar truss |
| CN105756252A (en) * | 2015-04-03 | 2016-07-13 | 张波 | Pre-stressed concrete truss composite slab and manufacturing method thereof |
| CN205530897U (en) * | 2016-04-06 | 2016-08-31 | 漳浦盛新彩钢结构有限公司 | Steel bar truss building carrier plate |
| CN205637266U (en) * | 2016-05-23 | 2016-10-12 | 甘肃安居建设工程集团有限公司 | Prestressing force truss reinforced concrete bottom plate |
| CN208430700U (en) * | 2017-08-30 | 2019-01-25 | 张立琦 | A kind of novel truss |
-
2018
- 2018-06-15 CN CN201810621843.1A patent/CN108560822B/en active Active
- 2018-06-15 CN CN201820933585.6U patent/CN208430700U/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120203A (en) * | 1998-10-15 | 2000-04-25 | Toshio Takemoto | Reinforced concrete hollow slab and its construction |
| CN101684673A (en) * | 2009-08-26 | 2010-03-31 | 天津市建科机械制造有限公司 | Reinforcement bar truss mould plate and welding process |
| CN105756252A (en) * | 2015-04-03 | 2016-07-13 | 张波 | Pre-stressed concrete truss composite slab and manufacturing method thereof |
| CN105220805A (en) * | 2015-10-14 | 2016-01-06 | 山东隆和节能科技股份有限公司 | The superimposed sheet base plate of steel bar girder and embedded bar truss |
| CN205530897U (en) * | 2016-04-06 | 2016-08-31 | 漳浦盛新彩钢结构有限公司 | Steel bar truss building carrier plate |
| CN205637266U (en) * | 2016-05-23 | 2016-10-12 | 甘肃安居建设工程集团有限公司 | Prestressing force truss reinforced concrete bottom plate |
| CN208430700U (en) * | 2017-08-30 | 2019-01-25 | 张立琦 | A kind of novel truss |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108560822A (en) | 2018-09-21 |
| CN208430700U (en) | 2019-01-25 |
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