CN211114417U - Novel steel-concrete composite beam structure of tensile shear - Google Patents
Novel steel-concrete composite beam structure of tensile shear Download PDFInfo
- Publication number
- CN211114417U CN211114417U CN201921548456.6U CN201921548456U CN211114417U CN 211114417 U CN211114417 U CN 211114417U CN 201921548456 U CN201921548456 U CN 201921548456U CN 211114417 U CN211114417 U CN 211114417U
- Authority
- CN
- China
- Prior art keywords
- steel
- concrete
- bar
- reinforcing
- reinforcing bar
- 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.)
- Active
Links
Images
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
A novel tensile shear-resistant steel-concrete combined beam structure comprises a concrete left plate, a concrete right plate, a steel beam, a limiting and positioning device, a screw, an upper fixing device, a lower fixing device, a connector, a shear-resistant part, upper longitudinal steel bars, lower longitudinal steel bars and grouting materials, wherein the shear-resistant part is connected to the upper surface of the upper flange of the steel beam, the limiting and positioning device is connected to the edge of the upper flange of the steel beam, and an open cavity is formed between the limiting and positioning device and the upper surface of the upper flange of the steel beam; the concrete left plate and the concrete right plate are connected to the steel beam through the screw, the upper fixing device, the lower fixing device and the connector; the concrete left plate, the concrete right plate, the connector and the limiting and positioning device are bonded into a whole through grouting material materials to form a novel tensile shear-resistant steel-concrete combined beam structure. The utility model discloses a structure has better shearing, resistance to plucking bearing capacity under the effect of multiaxis external load, can be applied to in the various combination beam bridge engineering.
Description
Technical Field
The utility model relates to a bridge engineering's building details and structure and construction field, especially a steel-concrete composite beam structure that novel tensile was cut.
Background
The steel-concrete composite beam bridge can overcome the defects of respective materials by arranging a shear connecting piece between a steel beam at the lower part and a concrete flange plate concrete slab at the upper part to resist lifting and relative sliding of the steel beam and the concrete flange plate concrete slab at the interface so that the steel beam and the concrete flange plate concrete slab are integrated and work together, the mechanical property, the integral property and the seismic property of the steel plate and the concrete bridge deck slab combined exceed the respective properties of the materials, and the steel material and the reinforced concrete material are organically combined together.
In the bending resistance analysis of the composite beam, the weld nail connecting piece only bears the shearing force, so the current research mainly focuses on researching the shearing resistance of the shear connecting piece. The design formula of the shear-resisting bearing capacity is also given in some specifications and standards at present. However, when the composite beam is subjected to a torque or a local load or a support hogging moment, the connecting member is subjected to the combined action of a drawing force and a shearing force. At present, the main beam of the bridge with the combined structure gradually tends to adopt a groove-shaped wide single main beam structure, and a connecting piece can bear larger drawing acting force generated by transverse bending of a bridge deck. The connecting piece can also bear the tension and shear combination action at the joint part of the hybrid beam and the combined cable tower part. If only the shear stress of the welding nail connecting piece is considered, the potential safety hazard can be caused.
Disclosure of Invention
In order to overcome the problems that the existing structure can be caused, the utility model provides a novel steel-concrete composite beam structure of tensile shear, which improves the structural style of the traditional composite beam, and under the action of multi-axis external load, the composite beam has better shearing resistance and pulling resistance bearing capacity, so that the steel beam and the concrete slab form an organic whole body, and can be applied to various composite beam bridge engineering.
The utility model provides a technical scheme that its technical problem adopted is:
a novel tensile shear-resistant steel-concrete combined beam structure comprises a concrete left plate, a concrete right plate, a steel beam, a limiting and positioning device, a screw, an upper fixing device, a lower fixing device, a connector, a shearing-resistant part, upper longitudinal steel bars, lower longitudinal steel bars and grouting materials, wherein the shearing-resistant part is connected to the upper surface of the upper flange of the steel beam, the limiting and positioning device is connected to the edge of the upper flange of the steel beam, and an open cavity is formed between the limiting and positioning device and the upper surface of the upper flange of the steel beam; the concrete left plate and the concrete right plate are connected to the steel beam through the screw, the upper fixing device, the lower fixing device and the connector; the concrete left plate, the concrete right plate, the connector and the limiting and positioning device are bonded into a whole through the grouting material to form a novel tensile shear-resistant steel-concrete combined beam structure.
Further, the left concrete slab comprises a concrete slab and the upper left reinforcing steel bars and the lower left reinforcing steel bars; the left upper steel bar and the left lower steel bar are overhanging parts of a part of upper transverse steel bar and lower transverse steel bar in the concrete slab reinforcing bar, the steel bar end of the left upper steel bar is downward, and the steel bar thread is arranged at the steel bar end;
the concrete right plate comprises a concrete slab and the right upper reinforcing steel bars and the right lower reinforcing steel bars; the right upper steel bar and the right lower steel bar are overhanging parts of a part of upper transverse steel bar and lower transverse steel bar in the concrete slab reinforcing bar, the steel bar end of the right upper steel bar is downward, and the steel bar thread is arranged at the steel bar end;
left side upper portion reinforcing bar and the mutual staggered arrangement of right side upper portion reinforcing bar, the reinforcing bar screw thread of upper left portion reinforcing bar and the upper end threaded connection of a connector, the reinforcing bar screw thread of upper right portion reinforcing bar and the upper end threaded connection of another connector.
The left upper steel bar comprises a steel bar and a steel bar thread, the left upper steel bar is formed into an L shape through a 90-degree cold bending process, the end of the steel bar is downward, the steel bar thread is manufactured at the end part of the steel bar, and the cold bending process is constructed according to the relevant standard;
after the left lower reinforcing steel bar is subjected to 180-degree cold bending process, the end part of the reinforcing steel bar is in an inverted U shape, and the end of the reinforcing steel bar is downward.
The right upper steel bar comprises a steel bar and a steel bar thread, the right upper steel bar is formed into an L shape through a 90-degree cold bending process, the end of the steel bar is downward, the steel bar thread is manufactured at the end part of the steel bar, and the cold bending process is constructed according to the relevant standard;
preferentially, after the right lower reinforcing steel bar is subjected to a 180-degree cold bending process, the end part of the reinforcing steel bar is in an inverted U shape, the end of the reinforcing steel bar is downward, and the cold bending process is constructed according to the relevant standard;
further, set up the confession on the girder steel screw that the screw rod passed, the girder steel screw includes first girder steel screw and second girder steel screw, first girder steel screw aligns with left upper portion reinforcing bar pendent section position, second girder steel screw aligns with right upper portion reinforcing bar pendent section position.
The connector is used for connecting left upper portion reinforcing bar or right side upper portion reinforcing bar with the screw rod, hole screw thread with left side upper portion reinforcing bar or right side upper portion reinforcing bar lower tip reinforcing bar screw thread matches, the screw rod with go up fixing device and fixing device constitutes connecting device down, through the connector will left side upper portion reinforcing bar or right side upper portion reinforcing bar in the girder steel is connected.
The upper end and the lower end of the screw rod are both provided with threads which are the same, the threads are matched with the internal control threads of the connector, the upper fixing device and the lower fixing device both comprise a gasket and a nut, and the nut is matched with the threads on the screw rod.
Preferably, the concrete slab is high-strength concrete.
Preferably, the steel beam is made of corrosion-resistant and high-temperature-resistant alloy steel.
The diameter of the first steel beam screw hole and the diameter of the second steel beam screw hole are 1-2 mm larger than that of the screw rod.
Furthermore, the limiting and positioning device is arranged at all edges of the upper surface of the upper flange of the steel beam in a bonding or welding mode, and an opening cavity is formed between the limiting and positioning device and the upper surface of the upper flange of the steel beam.
Preferably, the limiting and positioning device is made of high polymer materials, and can also be made of the same materials as the steel beam, and the height of the limiting and positioning device is 10-30 mm.
Further, the shear resistant member is arranged on the upper surface of the upper flange of the steel beam through a welding process.
Preferably, the shear resistant member is in the form of a stud, and may also be in the form of a bolt, a perforated plate, a channel steel, or the like.
Furthermore, the material of the upper longitudinal steel bar and the lower longitudinal steel bar is respectively the same as that of the upper longitudinal steel bar and the lower longitudinal steel bar of the left concrete plate and the right concrete plate, so that the integrity of the joint can be improved.
Furthermore, epoxy mortar is preferably adopted as the grouting material, and self-compacting concrete can also be adopted.
Further, when prefabricated in a factory, the concrete left plate and the concrete right plate which are in contact with the grouting material should be provided with grout stopping belts.
Preferably, the pulp stopping belt is a product with a fine surface.
The beneficial effects of the utility model are that:
(1) the upper reinforcing steel bar extending out of the concrete slab is bent to be downward at 90 degrees by adopting a cold bending process, a connector is connected with the screw rod into a whole, the screw rod penetrates through a hole formed in the steel beam and is connected to the steel beam through an upper fixing device and a lower fixing device, after pouring grouting materials are solidified, the connection between the concrete slab and the steel beam is more stable, and when shearing force, torsion, transverse bending moment or support negative bending moment acts on the steel-concrete composite beam, the lower bending section of the upper reinforcing steel bar, a connecting machine and the upper part of the screw rod can play a role in shearing resistance and can resist the shearing force generated by various working conditions at the interface of the composite structure; when various working conditions cause tension or torque and the like between concrete and the steel beam, the lower bending section of the upper reinforcing steel bar, the connecting machine and the screw rod can play a role in pulling resistance or torsion resistance, and the steel beam and the concrete slab are in a state of being lost and ensuring tight fit.
(2) The structure shears through shearing resistant piece, screw rod and upper portion reinforcing bar recurved portion and epoxy mortar jointly, has improved the shearing resistance bearing capacity of current combination beam scheme greatly.
(3) When the concrete slab is prefabricated, the concave-convex slurry stopping belt is arranged on the joint concrete template, so that the surface of the prefabricated slab at the joint is in a regular concave-convex shape, and the epoxy mortar and the prefabricated slab at the joint form effective connection by matching with the super-strong compression resistance, shear resistance, deformation coordination capacity and peeling resistance of the epoxy mortar, and the condition that the joint of a new block and an old block cracks under the action of external load can be prevented.
(4) An open cavity is newly formed between the limiting and positioning device arranged on the steel beam and the steel beam, the precast slab is erected on the limiting and positioning device, and when epoxy mortar is poured, the open cavity can be filled with the epoxy mortar, so that no gap exists in the connection between the steel beam and the concrete precast slab. On one hand, the waterproof effect can be achieved, the situation that the upper surface of the upper flange plate of the steel beam and the precast slab are separated from each other is prevented, the upper surface of the steel beam and the shear connector are prevented from being rusted in a humid environment, and the durability of the steel-concrete combined beam bridge is improved; on the other hand, the epoxy mortar layer between the steel beam and the concrete can work together with the shear connector, so that the shear connector is structurally resistant to shear force, and fatigue damage to the shear connector during working can be relieved.
Drawings
Fig. 1 is a front sectional view of a novel tensile shear steel-concrete composite beam structure which is not assembled.
Fig. 2 is a front sectional schematic view of a novel tensile shear steel-concrete composite beam structure without pouring.
Fig. 3 is a sectional view a-a of a novel tension shear steel-concrete composite beam structure.
Fig. 4 is an exploded view of a novel tension shear steel-concrete composite beam structure.
Wherein, 11 is the left board of concrete, 111 is upper left reinforcing bar, 112 is lower left reinforcing bar, 12 is the right board of concrete, 121 is upper right reinforcing bar, 122 is upper right reinforcing bar, 13 is the reinforcing bar screw thread, 2 is the girder steel, 211 is first girder steel screw hole, 212 is second girder steel screw hole, 3 is limiting positioning device, 4 is the screw rod, 41 is last fixing device, 42 is lower fixing device, 5 position connectors, 6 is the shearing, 7 is upper portion longitudinal reinforcement, 8 is lower part longitudinal reinforcement, 9 is grouting material, 10 is the grout stop area.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, a novel tensile shear-resistant steel-concrete composite beam structure includes a concrete left plate 11, a concrete right plate 12, a steel beam 2, a limiting and positioning device 3, a screw rod 4, an upper fixing device 41, a lower fixing device 42, a connector 5, a shear resistant member 6, an upper longitudinal steel bar 7, a lower longitudinal steel 8 and a grouting material 9. The shearing resistant part 6 is connected to the upper surface of the upper flange of the steel beam 2 in a welding mode, the limiting and positioning device 3 is connected to the edge of the upper flange of the steel beam 2 in a bonding or welding mode, and an open cavity is formed between the limiting and positioning device and the upper surface of the upper flange of the steel beam 2; the concrete left plate 11 and the concrete right plate 12 are connected to the steel beam 2 through the screw 4, the upper fixing device 41, the lower fixing device 42 and the connector 5; the concrete left plate 11, the concrete right plate 12 and the limiting and positioning device 3 provided with the connecting piece 6 are bonded into a whole through grouting materials 9 to form a novel tensile shear-resistant steel-concrete combined beam structure.
The left concrete slab 11 comprises concrete and left upper reinforcing bars 111 and left lower reinforcing bars 112, and the concrete slab is preferably made of high-strength concrete.
The left upper steel bar 111 and the left lower steel bar 112 are overhanging parts of a part of upper transverse steel bars and lower transverse steel bars in the reinforcing steel of the concrete left plate 11, the upper steel bars comprise steel bars and steel bar threads 13, the left upper steel bar 111 comprises the steel bars and the steel bar threads 13, the left upper steel bar 111 is formed into a shape of L through a 90-degree cold bending process, the ends of the steel bars are downward, the steel bar threads 13 are manufactured at the ends of the steel bars, the cold bending process is constructed according to relevant standards, after the left lower steel bar 112 is subjected to a 180-degree cold bending process, the ends of the steel bars are inverted U-shaped, the ends of the steel bars are downward, and the cold bending process is constructed according.
The concrete right plate 12 comprises concrete, right upper reinforcing steel bars 121 and right lower reinforcing steel bars 122, the concrete plate is preferably made of high-strength concrete, the left upper reinforcing steel bars 121 and the left lower reinforcing steel bars 122 are overhanging parts of upper transverse reinforcing steel bars and lower transverse reinforcing steel bars in reinforcing steel bars of the concrete right plate 12, the upper reinforcing steel bars comprise reinforcing steel bars and reinforcing steel bar threads 13, the right upper reinforcing steel bars 121 comprise reinforcing steel bars and reinforcing steel bar threads, the right upper reinforcing steel bars 121 are formed into a 'L' shape through a 90-degree cold bending process, the reinforcing steel bar ends are downward, reinforcing steel bar threads are manufactured at the end parts of the reinforcing steel bars, the cold bending process is constructed according to relevant standards, after the right lower reinforcing steel bars 122 are subjected to a 180-degree cold bending process, the end parts of the reinforcing steel bars are inverted 'U' -shaped.
The steel beam 2 is provided with a steel beam screw hole, the steel beam is made of corrosion-resistant and high-temperature-resistant alloy steel, and the steel beam screw hole comprises a first steel beam screw hole 211 and a second steel beam screw hole 212, the first steel beam screw hole 211 is aligned with the sagging section of the left upper steel bar 111, the second steel beam screw hole 212 is aligned with the sagging section of the right upper steel bar 121, and the diameter of the first steel beam screw hole 211 and the diameter of the second steel beam screw hole 212 are 2mm larger than that of the screw rod; the limiting and positioning device 3 is arranged at all edges of the upper surface of the upper flange of the steel beam 2 in a bonding or welding mode, and an open cavity is formed between the limiting and positioning device and the upper surface of the upper flange of the steel beam 2; limiting and positioning device 3 adopts the same material with girder steel 3, and limiting and positioning device 3's height is 30 mm.
The connector 5 is used for connecting the left upper reinforcing steel bar 111 or the right upper reinforcing steel bar 121 and the screw rod 4; the connector 3 is made of a high-strength material and has an inner hole thread that matches the reinforcing thread 13 of the lower end portion of the upper left reinforcing bar 111 or the upper right reinforcing bar 121.
The screw rod 4, the upper fixing device 41 and the lower fixing device 42 form a connecting device, the left upper steel bar 111 or the right upper steel bar is connected with the steel beam 121 through the connector 5, the upper end and the lower end of the screw rod 4 are provided with threads which are the same, the threads are matched with internal control threads of the connector 5, and the screw rod 4 is made of high-strength materials; the upper fixing device 41 and the lower fixing device 42 each include a washer and a nut, and the nuts are matched with the threads on the screw rods and are made of high-strength materials.
The shear resistant part 6 is arranged on the upper surface of the upper flange of the steel beam 2 through a welding process; the shear resistant members 6 are preferably in the form of studs; the materials of the upper longitudinal steel bars 7 and the lower longitudinal steel bars 8 are respectively the same as those of the upper longitudinal steel bars and the lower longitudinal steel bars of the concrete left plate 11 and the concrete right plate 12, the grouting material 9 is epoxy mortar, and when the grouting material is prefabricated in a factory, the concrete left plate 11 and the concrete right plate 12 which are in contact with the grouting material 9 are provided with the grout stopping belts 10.
The manufacturing process of the novel tensile shear-resistant steel-concrete composite beam structure comprises the following steps:
(1) prefabricated in factory
1.1) preparing a concrete material, a reinforcing steel bar material and a grout stopping belt for manufacturing the precast slab;
1.2) binding reinforcing steel bars and manufacturing templates according to the concrete slab structure in the drawing, wherein a grout stop belt is adopted for the concrete slab part in contact with grouting materials;
1.3) the overhanging upper and lower reinforcing steel bars of two butted concrete plates are in a staggered shape, the overhanging upper reinforcing steel bars and the overhanging lower reinforcing steel bars of the concrete plates are anchored, the upper reinforcing steel bars form an L shape through a 90-degree cold bending process, the ends of the reinforcing steel bars are downward, reinforcing steel bar threads are manufactured at the ends of the reinforcing steel bars, the ends of the reinforcing steel bars are in an inverted U shape after the lower reinforcing steel bars are subjected to a 180-degree cold bending process, the ends of the reinforcing steel bars are downward, and the cold bending process is constructed according to the related standard;
1.4) pouring concrete, maintaining and removing a mold, and tearing off a grout stop belt with a regular concave-convex surface to form all concrete precast slabs;
1.5) preparing a steel plate for manufacturing a steel beam blank, cutting the steel plate, and welding to form a steel beam in an I shape, an H shape, a T shape or other shapes;
1.6) forming a steel beam screw hole on the upper flange of the steel beam, wherein the steel beam screw hole is aligned with the sagging position of the upper reinforcing steel bar;
1.7) carrying out rust removal treatment on the upper surface of the steel beam, arranging a limiting and positioning device on the periphery of the upper surface of the upper flange of the steel beam, and forming a cavity with an upper opening between the limiting and positioning device and the upper surface of the upper flange of the steel beam;
1.8) arranging a shear connector on the surface of the steel beam through a welding seam;
1.9) carrying out sand blasting treatment on the surface of the steel beam at the joint and the surface of the shear connector, and carrying out anticorrosion and fireproof treatment on other parts;
1.10) manufacturing or purchasing a screw, an upper fixing device, a lower fixing device and a limiting and positioning device;
(2) on-site splicing
2.1) transporting the prefabricated steel beams and the prefabricated concrete plates to the site, reasonably stacking and waiting for splicing;
2.2) erecting the steel beam on a support of an engineering site;
2.3) connecting the upper steel bar sagging section with the upper end of the screw rod through a connector by using a torque wrench, wherein the torque required to meet the relevant specification of the steel bar connector is provided, sleeving an upper fixing device on the screw rod, and bonding the upper fixing device on the screw rod by adopting a temporary fixing mode;
2.4) installing the precast concrete plates on the steel beams through hoisting, wherein the precast concrete plates are in direct contact with the limiting and positioning devices, and the lower ends of the screw rods penetrate through steel beam screw holes in the steel beams and are arranged;
2.5) connecting the upper longitudinal steel bars, the lower longitudinal steel bars and the steel bars extending out of the concrete slab into a whole in a plate rolling mode;
2.6) after the whole body is stabilized, screwing the upper fixing device to ensure that the upper fixing device is tightly attached to the upper surface of the upper flange of the steel beam;
2.7) pouring the prepared grouting material (epoxy mortar) into the joint formed between the steel beam and the precast slab;
and 2.8) after solidification, penetrating the lower fixing device through the lower part of the screw, screwing the screw down, and sealing the screw by adopting a sealant material to prevent corrosion.
Claims (9)
1. The novel tensile shear-resistant steel-concrete combined beam structure is characterized by comprising a concrete left plate, a concrete right plate, a steel beam, a limiting and positioning device, a screw rod, an upper fixing device, a lower fixing device, a connector, a shear-resistant part, upper longitudinal steel bars, lower longitudinal steel bars and grouting materials, wherein the shear-resistant part is connected to the upper surface of the upper flange of the steel beam, the limiting and positioning device is connected to the edge of the upper flange of the steel beam, and an open cavity is formed between the limiting and positioning device and the upper surface of the upper flange of the steel beam; the concrete left plate and the concrete right plate are connected to the steel beam through the screw, the upper fixing device, the lower fixing device and the connector; the concrete left plate, the concrete right plate, the connector and the limiting and positioning device are bonded into a whole through the grouting material to form a novel tensile shear-resistant steel-concrete combined beam structure.
2. The novel tension shear resistant steel-concrete composite beam structure as claimed in claim 1, wherein the concrete left plate comprises a concrete slab, left upper reinforcing bars and left lower reinforcing bars; the left upper steel bar and the left lower steel bar are overhanging parts of a part of upper transverse steel bar and lower transverse steel bar in the concrete slab reinforcing bar, the steel bar end of the left upper steel bar is downward, and a steel bar thread is arranged at the steel bar end;
the concrete right plate comprises a concrete slab and right upper reinforcing steel bars and right lower reinforcing steel bars; the right upper steel bar and the right lower steel bar are overhanging parts of a part of upper transverse steel bar and lower transverse steel bar in the concrete slab reinforcing bar, the steel bar end of the right upper steel bar is downward, and a steel bar thread is arranged at the steel bar end;
left side upper portion reinforcing bar and the mutual staggered arrangement of right side upper portion reinforcing bar, the reinforcing bar screw thread of upper left portion reinforcing bar and the upper end threaded connection of a connector, the reinforcing bar screw thread of upper right portion reinforcing bar and the upper end threaded connection of another connector.
3. The novel tension shear resistant steel-concrete composite beam structure as claimed in claim 2, wherein the left upper reinforcing bar comprises a reinforcing bar and a reinforcing bar thread, the left upper reinforcing bar is formed in a 'L' shape through a 90 ° cold bending process, the reinforcing bar thread is formed at the end of the reinforcing bar with the end of the reinforcing bar facing downward, and the cold bending process is performed according to the relevant standard;
after the left lower reinforcing steel bar is subjected to 180-degree cold bending process, the end part of the reinforcing steel bar is in an inverted U shape, and the end of the reinforcing steel bar is downward.
4. The novel tension shear resistant steel-concrete composite beam structure as claimed in claim 2, wherein the right upper reinforcing bar comprises a reinforcing bar and a reinforcing bar thread, the right upper reinforcing bar is formed in a 'L' shape through a 90 ° cold bending process, the reinforcing bar thread is made at the end of the reinforcing bar with the end of the reinforcing bar downward, and the cold bending process is performed according to the relevant standard;
and after the right lower reinforcing steel bar is subjected to a 180-degree cold bending process, the end part of the reinforcing steel bar is in an inverted U shape, the end of the reinforcing steel bar is downward, and the cold bending process is constructed according to the relevant standard.
5. The novel steel-concrete composite beam structure of tensile shears as claimed in any one of claims 1 to 4, wherein the steel beam is provided with a steel beam screw hole for the screw rod to pass through, the steel beam screw hole comprises a first steel beam screw hole and a second steel beam screw hole, the first steel beam screw hole is aligned with the left upper steel bar hanging section, and the second steel beam screw hole is aligned with the right upper steel bar hanging section.
6. The novel steel-concrete composite beam structure of tensile shears as claimed in any one of claims 2 to 4, wherein said connector is used for connecting said upper left reinforcing bar or said upper right reinforcing bar with said screw, an inner hole thread is matched with said reinforcing bar thread at the lower end of said upper left reinforcing bar or said upper right reinforcing bar, said screw, said upper fixing device and said lower fixing device constitute a connecting device, and said upper left reinforcing bar or said upper right reinforcing bar is connected to said steel beam through said connector.
7. The novel tension shear resistant steel-concrete composite beam structure as claimed in claim 6, wherein said screw has threads at both upper and lower ends, the threads being identical and matching with the internal control threads of said connector, said upper and lower fixing means each comprising a washer and a nut matching with the threads on said screw.
8. A novel tensile shear resistant steel-concrete composite beam structure according to any one of claims 1 to 4, wherein said limiting and positioning means is bonded or welded to all edges of the upper surface of the upper flange of the steel beam, so as to form an open cavity with the upper surface of the upper flange of the steel beam.
9. A novel tension shear resistant steel-concrete composite beam structure as claimed in any one of claims 1 to 4, wherein said shear resistant member is provided on the upper surface of the upper flange of said steel beam by welding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921548456.6U CN211114417U (en) | 2019-09-18 | 2019-09-18 | Novel steel-concrete composite beam structure of tensile shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921548456.6U CN211114417U (en) | 2019-09-18 | 2019-09-18 | Novel steel-concrete composite beam structure of tensile shear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211114417U true CN211114417U (en) | 2020-07-28 |
Family
ID=71694217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921548456.6U Active CN211114417U (en) | 2019-09-18 | 2019-09-18 | Novel steel-concrete composite beam structure of tensile shear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211114417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528778A (en) * | 2019-09-18 | 2019-12-03 | 苏州科技大学 | A kind of Steel-concrete Combined Beam Structures that Novel tensile is cut and its manufacture craft |
-
2019
- 2019-09-18 CN CN201921548456.6U patent/CN211114417U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528778A (en) * | 2019-09-18 | 2019-12-03 | 苏州科技大学 | A kind of Steel-concrete Combined Beam Structures that Novel tensile is cut and its manufacture craft |
| CN110528778B (en) * | 2019-09-18 | 2024-03-12 | 苏州科技大学 | Novel tensile shear steel-concrete composite beam structure and manufacturing process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106400954A (en) | Steel beam-steel pipe concrete column joint based on damage control concept | |
| CN110528778B (en) | Novel tensile shear steel-concrete composite beam structure and manufacturing process thereof | |
| CN113062197B (en) | Assembly type stiffening large cantilever corrugated steel web PC combined box girder and construction method thereof | |
| CN102086677A (en) | Prefabricated reinforced concrete beam and connection joint of reinforced concrete column and beam | |
| CN110541356B (en) | Manufacturing process of steel-concrete composite beam bridging joint structure | |
| CN106223212A (en) | A kind of reinforcement means suffering fired damage bridge | |
| CN213359049U (en) | Assembled superimposed sheet | |
| CN113605771A (en) | Prestress assembly type frame structure system | |
| CN110424529B (en) | Prefabricated cantilever beam balcony and construction method | |
| CN211114417U (en) | Novel steel-concrete composite beam structure of tensile shear | |
| CN103437493A (en) | Connecting node of prefabricated reinforced concrete beam and construction method of connecting node | |
| CN202990196U (en) | Partially prestressed prefabricated thin plate | |
| CN204571092U (en) | Prefabricated composite girder segment syndeton and the compound beam containing syndeton | |
| CN101761241A (en) | Roof suspended type method for pulling out pillars | |
| CN212270679U (en) | Novel anti-drawing composite beam joint structure | |
| CN112012105A (en) | Tooth block pull rod combined cable tower anchoring structure of cable-stayed bridge | |
| CN111236069A (en) | Novel anti-drawing combined beam joint structure and manufacturing process | |
| CN107542219A (en) | Carbon fiber mesh composite board H-shaped cuts section bar and preparation method | |
| CN2661809Y (en) | nternal force adjustable prestressed steel-concrete combination beam | |
| CN213951909U (en) | Tubular connecting piece suitable for steel-concrete composite structure | |
| CN213390768U (en) | Bottom plate for assembling type concrete prestress overlapping | |
| CN109208756B (en) | Fabricated shear wall and manufacturing method thereof | |
| CN213390771U (en) | Welding-free laminated plate | |
| CN101294431B (en) | Construction method for steel-concrete composite truss floor | |
| CN113700153A (en) | Connecting structure of assembled laminated slab and combination beam and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |