CN112593657A - Manufacturing method of large-span light beam - Google Patents
Manufacturing method of large-span light beam Download PDFInfo
- Publication number
- CN112593657A CN112593657A CN202011304532.6A CN202011304532A CN112593657A CN 112593657 A CN112593657 A CN 112593657A CN 202011304532 A CN202011304532 A CN 202011304532A CN 112593657 A CN112593657 A CN 112593657A
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- China
- Prior art keywords
- steel bars
- bars
- stirrups
- upper portion
- special
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 238000001125 extrusion Methods 0.000 claims abstract description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 description 8
- 210000003205 muscle Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
- E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a method for manufacturing a large-span light beam, which is characterized in that special-shaped extrusion connecting sleeves are placed on reinforcing steel bars on the upper part of the beam and reinforcing steel bars on the lower part of the beam according to design requirements; binding a steel bar framework, and connecting the steel bars at the upper part of the beam, the steel bars at the lower part of the beam, the stirrups and the waist bars; installing an oblique web member; fixing the web member by a special-shaped extrusion connecting sleeve; arranging and binding stirrups; and pouring and tamping the girder concrete. The rigidity of the steel bar framework is improved by increasing the oblique web members, the internal stress characteristics of the concrete are changed, the stability of the beam is higher, cracks are reduced, and the use requirements of large span and concrete saving can be met.
Description
Technical Field
The invention relates to the technical field of prefabricated PC beams, in particular to a manufacturing method of a large-span light beam.
Background
The beam manufacturing method at the present stage is to configure horizontal longitudinal steel bars, stirrups and concrete. 1. When the beam is broken, the lower tension steel bar is longer, the plasticity change is large, and cracks are easy to generate. 2. When the concrete cracks, part of cracks are parallel to the stirrups, and the effect of restraining the cracks is not achieved. 3. When the beam is damaged, the reinforcing steel bars in the damaged area of the beam surface are unreasonably arranged, so that the damage is early, and the damage form is shown in figure 1. Therefore, in order to improve the rigidity of the beam and not increase the section area of the beam, the traditional steel bar structure is changed, so that the span of the beam is increased, and the weight of the beam is not increased basically.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a manufacturing method of a large-span light beam, which saves concrete and is convenient to construct.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
the utility model provides a large-span light beam, includes steel reinforcement framework, steel reinforcement framework includes roof beam upper portion reinforcing bar, roof beam lower part reinforcing bar, stirrup and waist muscle, roof beam upper portion reinforcing bar and the mutual parallel arrangement of roof beam lower part reinforcing bar, the both ends difference tie-beam upper portion reinforcing bar and roof beam lower part reinforcing bar of stirrup, the stirrup evenly arranges along the length direction of roof beam upper portion reinforcing bar, waist muscle perpendicular to stirrup sets up, the last web member that is equipped with of steel reinforcement framework, the web member slope sets up, the web member passes through heterotypic extrusion connecting sleeve and roof beam upper portion reinforcing bar, roof beam lower part steel bar connection, and adjacent web member head and the tail connect gradually, the connection can be dismantled to heterotypic extrusion connecting sleeve.
A manufacturing method of a large-span light beam comprises the following steps:
the method comprises the following steps that firstly, special-shaped extrusion connecting sleeves are placed on reinforcing steel bars on the upper portion of a beam and reinforcing steel bars on the lower portion of the beam according to design requirements;
secondly, binding a steel bar framework, and connecting the steel bars at the upper part of the beam, the steel bars at the lower part of the beam, the stirrups and the waist bars;
the third step: installing an oblique web member;
the fourth step: fixing the web member by a special-shaped extrusion connecting sleeve;
the fifth step: arranging and binding stirrups;
a sixth step: and pouring and tamping the girder concrete.
The invention has the beneficial effects that: the rigidity of the steel bar framework is improved by increasing the oblique web members, the internal stress characteristics of the concrete are changed, the stability of the beam is higher, cracks are reduced, and the use requirements of large span and concrete saving can be met.
1. The rigidity of the steel reinforcement framework is improved, and beam bending cracks are effectively reduced;
2. part of the web members are vertical to the cracks, so that the cracks are effectively restrained from forming;
3. the web member reinforcing steel bars and the main reinforcing steel bars form a plurality of triangular areas, so that concrete is stably restrained, and the extruded strength of the concrete is increased;
4. the web members are connected with the main bars by the special-shaped extrusion sleeves, so that the working efficiency is improved, and the damage of the welding of the steel bars to the main bars is avoided;
5. the cross section area of the beam can be reduced by the beam with the same span, and concrete is saved.
Drawings
FIG. 1 is a prior art beam failure form;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
reference symbol comparison table:
1. the beam comprises a beam upper part steel bar, 2, a stirrup, 3, a waist bar, 4, a beam lower part steel bar, 5, a special-shaped extrusion connecting sleeve, 6 and a web member.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.
It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In order to make the content of the present invention more clearly 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.
As shown in the accompanying drawings, a large-span light beam comprises a steel bar framework, the steel bar framework comprises beam upper portion steel bars 1, beam lower portion steel bars 4, stirrups 2 and waist bars 3, the beam upper portion steel bars 1 and the beam lower portion steel bars 4 are parallel to each other, the two ends of the stirrups 2 are respectively connected with the beam upper portion steel bars 1 and the beam lower portion steel bars 4, the stirrups 2 are evenly distributed along the length direction of the beam upper portion steel bars 1, the waist bars 3 are perpendicular to the stirrups 2, web members 6 are arranged on the steel bar framework, the web members 6 are obliquely arranged, the web members 6 are connected with the beam upper portion steel bars 1 and the beam lower portion steel bars 4 through special-shaped extrusion connecting sleeves 5, the adjacent web members 6 are sequentially connected end to end, and the special-shaped extrusion connecting sleeves 5 can be disassembled for connection.
A manufacturing method of a large-span light beam comprises the following steps:
the method comprises the following steps that firstly, special-shaped extrusion connecting sleeves 5 are placed on a beam upper reinforcing steel bar 1 and a beam lower reinforcing steel bar 4 according to design requirements;
secondly, binding a steel bar framework, and connecting the upper beam steel bar 1, the lower beam steel bar 4, the stirrups 2 and the waist bars 3;
the third step: installing an oblique web member 6;
the fourth step: the web member 6 is fixed by the special-shaped extrusion connecting sleeve 5;
the fifth step: arranging and binding the stirrups 2;
a sixth step: and pouring and tamping the girder concrete.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. The utility model provides a large-span light beam, includes framework of steel reinforcement, its characterized in that: the steel bar framework comprises beam upper portion steel bars (1), beam lower portion steel bars (4), stirrups (2) and waist bars (3), the beam upper portion steel bars (1) and the beam lower portion steel bars (4) are arranged in parallel, the two ends of the stirrups (2) are connected with the beam upper portion steel bars (1) and the beam lower portion steel bars (4) respectively, the stirrups (2) are evenly distributed along the length direction of the beam upper portion steel bars (1), the waist bars (3) are perpendicular to the stirrups (2) and arranged, web members (6) are arranged on the steel bar framework, the web members (6) are inclined and arranged, the web members (6) are connected with the beam upper portion steel bars (1) and the beam lower portion steel bars (4) through special-shaped extrusion connecting sleeves (5), the adjacent web members (6) are sequentially connected from head to tail, and the special-shaped extrusion connecting sleeves (5) can be disassembled and connected.
2. A manufacturing method of a large-span light beam is characterized by comprising the following steps:
the method comprises the following steps that firstly, special-shaped extrusion connecting sleeves (5) are placed on reinforcing steel bars (1) on the upper portion of a beam and reinforcing steel bars (4) on the lower portion of the beam according to design requirements;
secondly, binding a steel bar framework, and connecting the upper beam steel bar (1), the lower beam steel bar (4), the stirrup (2) and the waist bar (3);
the third step: installing an oblique web member (6);
the fourth step: the web member (6) is fixed by a special-shaped extrusion connecting sleeve (5);
the fifth step: arranging and binding the stirrups (2);
a sixth step: and pouring and tamping the girder concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304532.6A CN112593657A (en) | 2020-11-19 | 2020-11-19 | Manufacturing method of large-span light beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304532.6A CN112593657A (en) | 2020-11-19 | 2020-11-19 | Manufacturing method of large-span light beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112593657A true CN112593657A (en) | 2021-04-02 |
Family
ID=75183314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011304532.6A Pending CN112593657A (en) | 2020-11-19 | 2020-11-19 | Manufacturing method of large-span light beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112593657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530051A (en) * | 2021-07-12 | 2021-10-22 | 台州普立德建筑科技有限公司 | Prefabricated rib-free laminated slab |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2657667A1 (en) * | 1976-01-05 | 1977-07-14 | Cs & M Inc | BUILDING PLATE WITH A LATTICE FRAME MANUFACTURED FROM METAL WIRE, AND THE PROCESS AND DEVICE FOR THE PRODUCTION OF IT |
| CN202430896U (en) * | 2012-01-19 | 2012-09-12 | 广州城建开发设计院有限公司 | Rod type concrete beam |
| CN102733547A (en) * | 2012-07-05 | 2012-10-17 | 上海交通大学 | Internal truss for reinforced concrete beams |
| CN103498524A (en) * | 2013-10-15 | 2014-01-08 | 南京工业大学 | Superimposed plate/beam with enhanced steel bar truss and support connecting method thereof |
| CN105401692A (en) * | 2015-11-26 | 2016-03-16 | 攀枝花学院 | Blast furnace slag carbon fiber rod concrete beam |
| CN207469595U (en) * | 2017-10-30 | 2018-06-08 | 同圆设计集团有限公司 | A kind of combined reinforced beam |
-
2020
- 2020-11-19 CN CN202011304532.6A patent/CN112593657A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2657667A1 (en) * | 1976-01-05 | 1977-07-14 | Cs & M Inc | BUILDING PLATE WITH A LATTICE FRAME MANUFACTURED FROM METAL WIRE, AND THE PROCESS AND DEVICE FOR THE PRODUCTION OF IT |
| CN202430896U (en) * | 2012-01-19 | 2012-09-12 | 广州城建开发设计院有限公司 | Rod type concrete beam |
| CN102733547A (en) * | 2012-07-05 | 2012-10-17 | 上海交通大学 | Internal truss for reinforced concrete beams |
| CN103498524A (en) * | 2013-10-15 | 2014-01-08 | 南京工业大学 | Superimposed plate/beam with enhanced steel bar truss and support connecting method thereof |
| CN105401692A (en) * | 2015-11-26 | 2016-03-16 | 攀枝花学院 | Blast furnace slag carbon fiber rod concrete beam |
| CN207469595U (en) * | 2017-10-30 | 2018-06-08 | 同圆设计集团有限公司 | A kind of combined reinforced beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530051A (en) * | 2021-07-12 | 2021-10-22 | 台州普立德建筑科技有限公司 | Prefabricated rib-free laminated slab |
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Application publication date: 20210402 |