CN220353065U - High-strength high-ductility concrete assembled beam column connection node - Google Patents
High-strength high-ductility concrete assembled beam column connection node Download PDFInfo
- Publication number
- CN220353065U CN220353065U CN202323308866.2U CN202323308866U CN220353065U CN 220353065 U CN220353065 U CN 220353065U CN 202323308866 U CN202323308866 U CN 202323308866U CN 220353065 U CN220353065 U CN 220353065U
- Authority
- CN
- China
- Prior art keywords
- column
- strength
- concrete
- ductility concrete
- ductility
- 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
- 239000004567 concrete Substances 0.000 title claims abstract description 113
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 50
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 230000002787 reinforcement Effects 0.000 claims description 19
- 238000010276 construction Methods 0.000 abstract description 15
- 238000010008 shearing Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model provides a high-strength high-ductility concrete assembled beam column connecting node which comprises an upper high-strength high-ductility concrete composite column, a lower high-strength high-ductility concrete composite column, a reinforced concrete beam and a connecting assembly, wherein the upper high-strength high-ductility concrete composite column and the lower high-strength high-ductility concrete composite column comprise a hollow steel pipe inner shell, a concrete outer shell wrapped outside the steel pipe inner shell, end plates fixed at two ends of the steel pipe inner shell and a constraint assembly arranged in the steel pipe inner shell; the connecting component is fixed on the lower end plate of the upper high-strength high-ductility concrete superposed column and the upper end plate of the lower high-strength high-ductility concrete superposed column, and the reinforced concrete beam is fixed between the upper high-strength high-ductility concrete superposed column and the lower high-strength high-ductility concrete superposed column through the connecting component. The assembled beam column connecting node adopts high-strength high-ductility concrete, so that node stirrups are not required to be arranged, diagonal steel bars in the connecting assembly are reinforced, the shearing resistance of the node is enhanced, the bearing capacity and the earthquake resistance are ensured, the arrangement of the steel bars is simplified, and the construction cost is reduced.
Description
Technical Field
The utility model relates to the technical field of buildings, in particular to a high-strength high-ductility concrete assembled beam column connecting node.
Background
In recent years, along with the continuous and deep development concept of green sustainable development in China, the assembled building has become an important direction for transformation and upgrading of the traditional building industry. Compared with the traditional construction form of the building structure, the assembled building component can be produced in a standardized and mass mode, is not influenced by other uncertain factors such as weather and the like, and is more reliable in quality. The assembled building has obvious technical advantages, saves labor and templates, reduces emission and pollution, and greatly accelerates construction progress. However, prefabricated building structures have a plurality of problems, such as low industrialization degree, the components of the building structure are not standardized, and the connecting nodes of the prefabricated building structure are weak links of the whole building structure, so that more barriers exist from the aspects of construction and mechanics. Meanwhile, the earthquake damage investigation of the earthquakes at all places finds that: in the integrally collapsed building, the prefabricated beams and column members are less damaged, and the main collapse reason is the damage of the beam-column connecting joints of the frame structure.
Disclosure of Invention
The utility model discloses a high-strength high-ductility concrete assembled beam column connecting node, and aims to solve the technical problems.
The utility model adopts the following scheme:
the high-strength high-ductility concrete assembled beam column connecting node comprises an upper high-strength high-ductility concrete composite column, a lower high-strength high-ductility concrete composite column, a reinforced concrete beam and a connecting component, wherein the upper high-strength high-ductility concrete composite column and the lower high-strength high-ductility concrete composite column respectively comprise a steel pipe inner shell which is arranged in a columnar hollow manner, a concrete outer shell which is wrapped outside the steel pipe inner shell, end plates which are fixed at two ends of the steel pipe inner shell and a constraint component which is arranged in the steel pipe inner shell; the connecting component is fixedly connected to the lower end plate of the upper high-strength high-ductility concrete superposed column and the upper end plate of the lower high-strength high-ductility concrete superposed column, and the reinforced concrete beam is fixedly connected between the upper high-strength high-ductility concrete superposed column and the lower high-strength high-ductility concrete superposed column through the connecting component and is positioned on the side surfaces of the upper high-strength high-ductility concrete superposed column and the lower high-strength high-ductility concrete superposed column.
As a further improvement, the connecting assembly comprises connecting steel bars and diagonal steel bars, and two ends of the connecting steel bars respectively penetrate through holes of the lower end plate of the upper high-strength high-ductility concrete laminated column and holes of the upper end plate of the lower high-strength high-ductility concrete laminated column to enter the upper high-strength high-ductility concrete laminated column and the lower high-strength high-ductility concrete laminated column; the diagonal bars are welded to the connecting bars to form a first reinforcement cage.
As a further improvement, the reinforced concrete beam comprises a reinforced concrete shell with a U-shaped section, an upper longitudinal bar and a second reinforcement cage fixed in the reinforced concrete shell, wherein one end side surface of the reinforced concrete shell, which is close to the connecting assembly, is provided with a protruded transverse reinforcement and a lower bottom row of transverse reinforcements, and the lower bottom row of transverse reinforcements is positioned below the transverse reinforcements.
As a further improvement, the lower bottom row of transverse steel bars are U-shaped steel bars.
As a further improvement, the second reinforcement cage is disposed through the reinforced concrete housing upper portion, and the upper portion longitudinal bar is bound to the lateral U-shaped stirrup upper portion of the reinforced concrete housing, which passes through the connection assembly from one end reinforced concrete housing to the other end reinforced concrete housing.
As a further improvement, the restraint assembly comprises opposite-pulling screws and a flying nut, wherein the opposite-pulling screws are arranged in a crisscross manner and are integrated with the flying nut.
As a further improvement, the end plate is a back-shaped end plate, and a plurality of holes are uniformly distributed on the back-shaped end plate.
As a further improvement, the size of the back-shaped end plate is the same as that of the steel pipe inner shell.
By adopting the technical scheme, the utility model can obtain the following technical effects:
the high-strength high-ductility concrete fabricated beam column connecting node adopts high-strength high-ductility concrete, so that node stirrups are not required to be arranged, diagonal steel bars in a connecting assembly are not required, the shearing resistance of the node is enhanced, the arrangement of the steel bars is simplified while the bearing capacity and the anti-seismic performance are ensured, the construction cost is reduced, the connecting node of the existing fabricated building structure is a weak link of the whole building structure, in a building which is wholly collapsed, the prefabricated beams and column members are damaged lightly, and the main collapse reason is the problem that the beam column connecting node of the frame structure is damaged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a high strength, high ductility concrete fabricated beam-column connection node of the present utility model;
FIG. 2 is a schematic illustration of another construction of a high strength, high ductility concrete fabricated beam-column connection node of the present utility model;
FIG. 3 is a schematic view of the structure of a precast reinforced concrete beam of the high-strength high-ductility concrete fabricated beam-column connection node of the present utility model;
FIG. 4 is a schematic illustration of the complete structure of an upper high strength, high ductility concrete composite column in a high strength, high ductility concrete fabricated beam column connection node of the present utility model;
fig. 5 is a schematic diagram of the complete structure of the lower high-strength high-ductility concrete composite column in the high-strength high-ductility concrete fabricated beam-column connection node of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 to 5, a first embodiment of the present utility model provides a high-strength high-ductility concrete fabricated beam-column connection node, which comprises an upper high-strength high-ductility concrete composite column 1, a lower high-strength high-ductility concrete composite column 2, reinforced concrete beams 3 and a connection assembly, wherein the upper high-strength high-ductility concrete composite column 1 and the lower high-strength high-ductility concrete composite column 2 each comprise a steel pipe inner shell 7 arranged in a columnar hollow manner, a concrete outer shell 6 wrapped outside the steel pipe inner shell 7, end plates 8 welded and fixed at two ends of the steel pipe inner shell 7, and a constraint assembly installed in the steel pipe inner shell 7. The restraint assembly comprises a counter-pulling screw rod 9 and a ring nut, wherein the counter-pulling screw rod 9 is a common screw rod, materials can be selected according to requirements, the counter-pulling screw rods 9 are arranged in a crisscross manner, are integrated with the ring nut, and are used for jointly restraining the steel pipe and acting as an equivalent stirrup, so that the circumferential restraint effect on core concrete is achieved. The connecting component is fixedly connected to the lower end plate of the upper high-strength high-ductility concrete superposed column 1 and the upper end plate of the lower high-strength high-ductility concrete superposed column 2, and the reinforced concrete beam 3 is fixedly connected between the upper high-strength high-ductility concrete superposed column 2 and the lower high-strength high-ductility concrete superposed column 2 through the connecting component and is positioned on the side surfaces of the upper high-strength high-ductility concrete superposed column 2 and the lower high-strength high-ductility concrete superposed column 2. The high-strength high-ductility concrete is adopted for the assembled beam column connecting node, so that node stirrups are not required to be arranged, diagonal steel bars 4 in the connecting assembly are not required, the shearing resistance of the node is enhanced, the bearing capacity and the earthquake resistance are ensured, the arrangement of the steel bars is simplified, and the construction cost is reduced.
Further, the concrete outer shell 6 is a high-strength high-ductility concrete outer shell 6 with a certain thickness, and is solidified and wrapped on the outer side wall of the steel pipe inner shell 7. The end plate 8 is a U-shaped end plate, and a plurality of holes are uniformly distributed on the U-shaped end plate, so that the U-shaped end plate is convenient to connect with the upper and lower high-strength high-ductility concrete superposed columns 2; meanwhile, the size of the back-shaped end plate is the same as that of the steel pipe inner shell 7, so that the core concrete is restrained and pouring is facilitated. The high-strength high-ductility concrete has higher strength, better crack resistance, difficult spalling, higher fire resistance and better durability in fire environment and corrosive environment.
Further, the connection assembly includes connection bars 5 and diagonal bars 4, and both ends of the connection bars 5 respectively pass through holes of a lower end plate (a zigzag end plate) of the upper high-strength high-ductility concrete composite column 1 and holes of an upper end plate (a zigzag end plate) of the lower high-strength high-ductility concrete composite column 2 to enter the upper and lower high-strength high-ductility concrete composite columns 2. The diagonal steel bars 4 are welded on the connecting steel bars 5 to form a first steel bar cage, meanwhile, the diagonal steel bars 4 can provide shear strength, delay development of diagonal cracks, and post-cast high-strength high-ductility concrete at the connecting nodes, so that bearing effects of the connecting node hoops are achieved without arranging the node hoops, and anti-seismic performance can be guaranteed.
Further, the reinforced concrete beam 3 includes a reinforced concrete housing 10 having a U-shaped cross section, an upper longitudinal bar, and a second reinforcement cage 12 fixed in the reinforced concrete housing 10, the second reinforcement cage 12 being disposed through an upper portion of the reinforced concrete housing 10, and the upper longitudinal bar being bound to an upper portion of a lateral U-shaped stirrup of the reinforced concrete housing 10, which passes through a connection assembly from one end reinforced concrete housing 10 to the other end reinforced concrete housing 10, so as to connect the reinforced concrete housings 10 at opposite ends.
Further, the reinforced concrete housing 10 has a protruding transverse bar and a lower bottom row of transverse bars on one end side near the connection assembly, and the lower bottom row of transverse bars is a U-shaped bar 11, which can enhance the connection of the reinforced concrete beam 3 with the nodes. And the lower bottom row of transverse bars (U-bars 11) is located below the transverse bars. When the beam-column connection joint accords with a strong-column weak beam, the beam plastic hinge is generally destroyed firstly under the action of an earthquake, and high-strength high-ductility concrete is poured in the plastic hinge area of the reinforced concrete beam 3, so that the destruction of the reinforced concrete beam 3 under the action of the earthquake is delayed.
The beneficial effects of the utility model are as follows: according to the utility model, the steel bars 5 are positioned and connected between the upper high-strength high-ductility concrete superposed columns 2 and the lower high-strength high-ductility concrete superposed columns through the U-shaped end plates, so that the node construction efficiency is high, the connected inner space is used as a template of cast-in-place concrete, the steel consumption is reduced, and the local buckling of the steel plates is prevented. The high-strength high-ductility concrete wraps the outer side, so that the connecting node has good fireproof performance and anti-seismic performance, in addition, the anti-cracking performance is good, the concrete on the outer surface of the component cannot be peeled off too early to cause the loss of the bearing capacity of the component, and therefore, the distributed steel bars are not required to be arranged any more, the trouble of binding the steel bars is eliminated, and the labor cost is reduced. The connecting node adopts high-strength high-ductility concrete, so that node stirrups are not required to be arranged, the arranged diagonal steel bars 4 strengthen the shearing resistance of the node, the bearing capacity and the earthquake resistance are ensured, the steel bar arrangement is simplified, and the construction cost is reduced. The U-shaped steel bars 11 of the reinforced concrete beam 3 strengthen the connection between the beam and the nodes. Meanwhile, high-strength high-ductility concrete is poured at the plastic hinge of the beam, so that the time for cracking the structure under the action of an earthquake is greatly delayed. Therefore, the connecting node has good mechanical property and weather resistance, the integrity and stability of the connecting node are enhanced, the anti-seismic performance is also greatly improved, meanwhile, the arrangement of the reinforcing steel bars is simplified, and the construction cost is reduced.
The concrete construction steps of the utility model are as follows:
s1, prefabricating an upper high-strength high-ductility concrete composite column 2 and a lower high-strength high-ductility concrete composite column: firstly, respectively welding a plurality of flat steel plates according to the design requirement of the column section to obtain a columnar hollow steel pipe inner shell 7; punching the inner shell 7 of the steel pipe, and penetrating a counter-pulling screw 9; then welding back-shaped end plates at two ends of the steel pipe inner shell 7 respectively; then supporting the mould of the steel pipe inner shell 7, pouring high-strength high-ductility concrete and curing; wrapping the outer side of the steel pipe inner shell 7 with a high-strength high-ductility concrete outer shell 6 to obtain an upper high-strength high-ductility concrete composite column 2 and a lower high-strength high-ductility concrete composite column 2;
s2, prefabrication of the reinforced concrete shell 10: firstly paving a bottom die, and secondly completing binding of lower stress bars and lateral stirrups, wherein the transverse bars of the bottom row of the lower stress bars are U-shaped bars 11, and the lateral stirrups are lateral U-shaped stirrups, so that the section of the reinforced concrete shell 10 is U-shaped; then paving a side die (concrete is not poured in the prefabrication stage of the plastic hinge of the beam), and extending the transverse reinforcing steel bars of the lower stressed tendons out of one end of the side die; finally, casting and curing the concrete; removing the bottom die and the side die to obtain a reinforced concrete shell 10;
s3, site construction: assembling the upper high-strength high-ductility concrete composite column 1, the lower high-strength high-ductility concrete composite column 2 and the reinforced concrete shell 10; firstly, moving a reinforced concrete shell 10 to the side upper part of a lower high-strength high-ductility concrete superposed column 2, moving a first reinforcement cage consisting of connecting reinforcements 5 and diagonal reinforcements 4 into a node, inserting the connecting reinforcements 5 into holes of a back-shaped end plate for positioning, binding upper longitudinal reinforcements of a reinforced concrete beam 3 to the upper parts of lateral U-shaped stirrups of the reinforced concrete shell 10, enabling the upper longitudinal reinforcements to pass through a connecting assembly from one end reinforced concrete shell 10 to the other end reinforced concrete shell 10, pouring ordinary concrete into the lower high-strength high-ductility concrete superposed column 2, and then inserting the upper ends of the connecting reinforcements 5 into the holes of the lower end plate of the upper high-strength high-ductility concrete superposed column 1; and pouring high-strength high-ductility concrete at the joint, the plastic hinge of the reinforced concrete beam 3 and the post-pouring area, and finally pouring ordinary concrete into the upper high-strength high-ductility concrete superposed column 1, and curing to finish site construction.
The assembled connecting node of the high-strength high-ductility concrete superposed column and the concrete beam obtained by the construction method has good fireproof performance and anti-cracking performance, the connecting structure also has good mechanical performance and weather resistance, the integrity and stability of the connecting structure are enhanced, and as the high-strength high-ductility concrete is poured at the plastic hinge position and the node position of the reinforced concrete beam 3, the development of cracks can be reduced or delayed under the earthquake action, the anti-cracking performance is greatly improved, meanwhile, the arrangement of steel bars is simplified, and the construction cost is reduced.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model.
Claims (6)
1. The high-strength high-ductility concrete assembled beam column connecting node is characterized by comprising an upper high-strength high-ductility concrete composite column, a lower high-strength high-ductility concrete composite column, a reinforced concrete beam and a connecting assembly, wherein the upper high-strength high-ductility concrete composite column and the lower high-strength high-ductility concrete composite column comprise a steel pipe inner shell which is arranged in a columnar hollow manner, a concrete outer shell which is wrapped outside the steel pipe inner shell, end plates which are fixed at two ends of the steel pipe inner shell and a constraint assembly which is arranged in the steel pipe inner shell; the connecting component is fixedly connected to the lower end plate of the upper high-strength high-ductility concrete superposed column and the upper end plate of the lower high-strength high-ductility concrete superposed column, and the reinforced concrete beam is fixedly connected between the upper high-strength high-ductility concrete superposed column and the lower high-strength high-ductility concrete superposed column through the connecting component and is positioned on the side surfaces of the upper high-strength high-ductility concrete superposed column and the lower high-strength high-ductility concrete superposed column;
the connecting assembly comprises connecting steel bars and diagonal steel bars, and two ends of the connecting steel bars respectively penetrate through holes of the lower end plate of the upper high-strength high-ductility concrete superposed column and holes of the upper end plate of the lower high-strength high-ductility concrete superposed column to enter the upper high-strength high-ductility concrete superposed column and the lower high-strength high-ductility concrete superposed column; the diagonal steel bars are welded on the connecting steel bars to form a first steel bar cage;
the reinforced concrete beam comprises a reinforced concrete shell, an upper longitudinal bar and a second reinforcement cage, wherein the cross section of the reinforced concrete shell is U-shaped, the second reinforcement cage is fixed in the reinforced concrete shell, the side face of one end, close to the connecting assembly, of the reinforced concrete shell is provided with extended transverse bars and lower bottom row transverse bars, and the lower bottom row transverse bars are located below the transverse bars.
2. The high strength, high ductility concrete fabricated beam-column connection node of claim 1, wherein the lower bottom row of transverse rebar is U-shaped rebar.
3. The high strength, high ductility concrete fabricated beam-column connection node of claim 1, wherein the second reinforcement cage is disposed through the reinforced concrete housing upper portion, the upper longitudinal bars being tied to the lateral U-shaped stirrup upper portion of the reinforced concrete housing, which passes through the connection assembly from one end reinforced concrete housing to the other end reinforced concrete housing.
4. The high strength, high ductility concrete fabricated beam-column connection node of claim 1, wherein the restraint assembly comprises a split screw and a flying nut, the split screws being crisscrossed and integral with the flying nut.
5. The high-strength high-ductility concrete fabricated beam-column connection node of claim 1, wherein the end plate is a back-shaped end plate, and a plurality of holes are uniformly distributed on the back-shaped end plate.
6. The high strength, high ductility concrete fabricated beam-column connection node of claim 5, wherein the zigzag end plates are the same size as the steel tube inner shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323308866.2U CN220353065U (en) | 2023-12-06 | 2023-12-06 | High-strength high-ductility concrete assembled beam column connection node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323308866.2U CN220353065U (en) | 2023-12-06 | 2023-12-06 | High-strength high-ductility concrete assembled beam column connection node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220353065U true CN220353065U (en) | 2024-01-16 |
Family
ID=89505404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323308866.2U Active CN220353065U (en) | 2023-12-06 | 2023-12-06 | High-strength high-ductility concrete assembled beam column connection node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220353065U (en) |
-
2023
- 2023-12-06 CN CN202323308866.2U patent/CN220353065U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107060067B (en) | Superimposed precast reinforced concrete structure system and construction method thereof | |
| CN108179806B (en) | Fully assembled reinforced concrete frame structure system | |
| CN107975160B (en) | Shear wall structure with lateral connecting key groove, manufacturing and assembling method | |
| CN109252727B (en) | Shock insulation layer rubber support, column, beam and plate system integrated assembly node and method | |
| CN110792165B (en) | Prefabricated assembly type concrete beam column joint connecting device and method | |
| CN108571070B (en) | Prefabricated steel tube concrete ring beam connecting structure and construction method | |
| CN109680835B (en) | Self-supporting precast concrete wallboard, concrete wall, structural system and construction method | |
| CN111364679A (en) | Assembled reinforced concrete structure post and connected node | |
| CN114541574B (en) | Assembled steel-concrete combined node with metal damper and installation method thereof | |
| CN111335464A (en) | Fabricated concrete structure beam column connecting node and construction method thereof | |
| CN107447873B (en) | Device for connecting prefabricated laminated connecting beam and prefabricated shear wall and installation method | |
| CN113006346A (en) | Novel integral shear wall structure of prefabricated assembly | |
| CN109680833B (en) | Self-supporting prefabricated steel reinforced concrete wall plate component, wall, structural system and manufacturing method | |
| CN220353065U (en) | High-strength high-ductility concrete assembled beam column connection node | |
| CN111962767A (en) | Web plate open-hole section steel partially-wrapped concrete composite beam and construction method thereof | |
| CN104153463A (en) | Assembled integrated frame system and construction method thereof | |
| CN111749346A (en) | Extension joint containing prefabricated concrete-filled steel tube core column component and construction method | |
| CN111119376A (en) | Reinforced multi-cavity concrete filled steel tube shear wall, system and construction method | |
| CN111021630A (en) | Section steel concrete column and semi-assembly type construction method thereof | |
| CN113789861B (en) | Assembly type connecting joint of corrugated plate-ECC column and concrete beam and construction method thereof | |
| CN114108808A (en) | PVC-FRP (polyvinyl chloride-fiber reinforced plastic) pipe concrete column and concrete composite beam combined structure with adjustable connecting nodes and installation method thereof | |
| CN212104818U (en) | Assembled reinforced concrete structure post and connected node | |
| CN211774804U (en) | Multi-cavity concrete-filled steel tube shear wall and system | |
| CN210105041U (en) | Self-supporting prefabricated steel reinforced concrete wallboard component, wall and structural system | |
| CN215563329U (en) | Fabricated connecting joint of corrugated plate-ECC fabricated laminated column and steel beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |