CN107012952A - A kind of concrete frame node - Google Patents

Abstract

The invention provides a concrete frame node, the concrete frame includes a concrete column and a prefabricated beam, the concrete frame node includes a fixing device, an energy dissipation component and a locking device, the fixing device is arranged on the concrete column, and the locking device is installed on the prefabricated beam One end of the energy dissipation component is detachably installed on the fixing device, and the other end is detachably installed on the locking device. A concrete frame node of the present invention, by setting the fixing device on the concrete column, cooperating with the locking device on the prefabricated beam, and detachably installing on the locking device and the fixing device through the two ends of the energy dissipation component, This enables the connection between the prefabricated beams and the concrete columns. Since the energy-dissipating components are arranged outside the prefabricated beams and are detachably installed on the locking device and the fixing device, when the energy-dissipating components are deformed or damaged, they can be replaced quickly, making the use more convenient and quick.

Description

A concrete frame node

technical field

The invention relates to the technical field of construction engineering, and more specifically, to a concrete frame node.

Background technique

With the gradual acceleration of the process of "construction industrialization and housing industrialization" in China, in order to adapt to the development and transformation of my country's construction technology, prefabricated buildings have developed rapidly. Developed regions such as Europe and the United States have established complete and mature prefabricated concrete structures. For a long time, the quality and level of my country's precast concrete is relatively low, and earthquakes occur frequently. Therefore, it is necessary to accelerate the development of my country's prefabricated earthquake-resistant structural system to promote the green and sustainable development of my country's construction industry.

At present, foreign countries are ahead of domestic development in this field in the research and development of related prefabricated node connection technologies, especially in the research and development of high-performance ductile anti-seismic systems. The technology research and development of the US Prefabricated Seismic Building System (PRESSS) project is the most representative, which proposes a new type of external "plug and play" energy consumption device. This external "plug and play" energy-consuming device can not only protect people's lives and properties when an earthquake occurs, but also help repair after the earthquake and restore normal production and life as soon as possible. It is an ideal new direction for structural seismic design; At the same time, the research work on the replaceability of structural components for seismic performance is the current research focus in the field of seismic resistance and shock absorption of engineering structures, that is, to consciously set up some weak parts in the structure, and use the nonlinear deformation of the secondary components of the weak parts to consume earthquake damage. Energy, to protect the safety of the main components, and the damaged secondary components can be replaced after the earthquake.

However, the installation of the existing "plug and play" energy dissipation devices and the performance of the joints between beams and columns mainly have the following problems: on the one hand, because the combination of design and construction is not considered, the on-site construction process is relatively complicated; on the other hand On the one hand, since there is no supporting device between the beams and columns, the integrity of the connection nodes between the beams and columns is poor, and the installation of the energy consumer steering device penetrating the beams in the beams may affect the strength of the beams.

Therefore, based on the above technical problems, it is urgent to invent a concrete frame joint with simple on-site construction technology and stable overall performance of the connection between beams and columns.

Contents of the invention

The invention provides a concrete frame node with simple construction technology, stable connection performance between beams and columns, and high hoisting progress of beams and columns, so as to solve the problem that existing energy-consuming components easily affect the integrity of beams and columns during installation and the installation process is complicated. question.

According to one aspect of the present invention, a concrete frame node is provided, the concrete frame includes concrete columns and prefabricated beams, the concrete frame node includes a fixing device, an energy dissipation component and a locking device, the fixing device is arranged on the On the concrete column, the locking device is installed on the prefabricated beam, one end of the energy dissipation member is detachably installed on the fixing device, and the other end is detachably installed on the locking device. on the device.

Preferably on the basis of the above scheme, the fixing device includes a fixing frame fixed on the concrete column, the fixing frame is provided with an inner hole adapted to the prefabricated beam, and the fixing frame is also provided with a mounting One end of the energy dissipation component is detachably installed in the installation hole.

Preferably, on the basis of the above solution, there are two fixing frames, and the two fixing frames are arranged in parallel and spaced apart, and the two fixing frames are connected by an anchor rod.

Preferably, on the basis of the above scheme, there are two locking devices, and the locking devices are respectively installed on both sides of the concrete column, and the locking devices are respectively passed through the energy-dissipating member and the fixed rack connected.

Preferably on the basis of the above solution, the anchor rod includes accommodating parts at both ends and an adjustable part in the middle, the diameter of the accommodating part is larger than the diameter of the adjustable part, so that the adjustable part can be telescopically installed on the two between containment units.

Preferably on the basis of the above scheme, the fixed frame is also provided with two baffles arranged in parallel and spaced apart, the baffles are installed on the end face of the inner hole away from the concrete column, and the two Two baffles are respectively arranged on both sides of the long side of the inner hole.

Preferably, on the basis of the above solution, a support platform is further provided at the bottom of the fixing frame on the side away from the concrete column, and the top surface of the support platform is in contact with the bottom surface of the prefabricated beam.

Preferably, on the basis of the above solution, a reinforcing rib is further provided between the support platform and the fixing frame.

Preferably, on the basis of the above solution, the locking device includes a locking frame installed on the prefabricated beam, and the locking frame is provided with a locking hole adapted to the prefabricated beam.

Preferably on the basis of the above scheme, a semicircular lower groove is provided on the end surface of the locking frame, and a locking cover is also installed on the end surface of the locking frame, and a locking cover is provided on the locking cover. There is a semicircular upper groove matched with the groove, and the upper groove cooperates with the lower groove to form a fixing hole adapted to the shape of the energy dissipation component.

Preferably on the basis of the above solution, the locking cover is fixed on the locking frame by bolts.

Preferably on the basis of the above scheme, locking covers are respectively provided on the opposite end faces of the locking frame, and anchor rods are provided between the locking covers on the two opposite end faces, and the two ends of the anchor rods pass through the The nuts are locked on the two opposite locking covers.

A concrete frame node of the present invention, by setting the fixing device on the concrete column, cooperating with the locking device on the prefabricated beam, and detachably installing on the locking device and the fixing device through the two ends of the energy dissipation component, This enables the connection between the prefabricated beams and the concrete columns. Since the energy-dissipating components are arranged outside the prefabricated beams and are detachably installed on the locking device and the fixing device, when the energy-dissipating components are deformed or damaged, they can be replaced quickly, making the use more convenient and quick.

Secondly, the present invention sets a support platform on the fixed frame, and uses the top surface of the support platform to contact the bottom surface of the prefabricated beam, so as to realize the support of the fixed frame to the prefabricated beam, improve the connection strength between beams and columns, and, when the prefabricated beam is hoisted, can The support platform is used as the support point for beam lifting, which is convenient for centering, making the construction more convenient and accurate during the beam lifting process.

The present invention also arranges two baffles on the fixed frame. When the cushion is poured, the baffle can be directly used as a formwork, which saves the process and has a certain protection for the cushion, so that the concrete frame joints of the present invention The combination of design and construction facilitates construction.

The locking cover of the present invention is fixed to each other by the anchor rod. Since the anchor rod is embedded in the prefabricated beam, the integrated design between the locking cover and the locking frame can be realized through the anchor rod, so that the replacement of energy-consuming components It is more convenient, and this form has greater rigidity and better fixing effect.

Description of drawings

Fig. 1 is the perspective structure diagram of a kind of concrete frame joint of the present invention;

Fig. 2 is a three-dimensional structural diagram of a concrete frame node of the present invention;

Fig. 3 is the perspective view of fixing device of the present invention;

Fig. 4 is the structural diagram of the energy dissipation component of the present invention;

Fig. 5 is the structural diagram of locking device of the present invention;

Fig. 6 is a partial structural view of the locking device of the present invention;

Fig. 7 is the assembly diagram of fixing device and locking device of the present invention;

Fig. 8 is a schematic diagram of the first assembly of the support platform of the present invention;

Fig. 9 is a second assembly schematic view of the support platform of the present invention.

detailed description

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

Please refer to Fig. 1, and in conjunction with Fig. 2, Fig. 4 and Fig. 7, the present invention provides a kind of concrete frame joint, wherein, concrete frame comprises concrete column 10 and prefabricated beam 20, and concrete frame joint comprises fixture 30 , the energy dissipation member 40 and the locking device 50, the fixing device 30 is arranged on the concrete column 10, the locking device 50 is installed on the prefabricated beam 20, and one end of the energy dissipation member 40 is detachably installed on the fixing device 30, The other end is detachably mounted on the locking device 50 .

A concrete frame node of the present invention, by setting the fixing device 30 on the concrete column 10, cooperating with the locking device 50 on the prefabricated beam 20, and detachably installing the locking device at both ends of the energy dissipation member 40 50 and the fixing device 30, so as to realize the connection between the prefabricated beam 20 and the concrete column 10. Since the energy dissipating member 40 is arranged outside the prefabricated beam 20 and is detachably installed on the locking device 50 and the fixing device 30, when the energy dissipating member 40 is deformed or damaged, it can be quickly replaced, and the use is more efficient. Convenient.

Please continue to refer to shown in Figure 3, the fixing device 30 of the present invention includes a fixing frame 31 fixed on the concrete column 10, the fixing frame 31 is provided with an inner hole 32 adapted to the prefabricated beam 20, and the fixing frame 31 is also provided with Mounting hole, one end of the energy-dissipating member 40 is detachably installed in the mounting hole, and the energy-dissipating member 40 is generally installed on both sides of the prefabricated beam 20, if necessary, the upper and lower sides can also be arranged.

In order to ensure the stability of the connection between the fixing device 30 and the concrete column 10, there are preferably two fixing brackets 31 of the present invention, and the two fixing brackets 31 are arranged in parallel and at intervals, and the two fixing brackets 31 are connected to each other through the anchor rod 35. connect.

In the installation process, the anchor rod 35 is embedded in the concrete column 10, and at least two threaded holes are respectively arranged on the opposite end faces of the two fixing frames 31, and the two threaded holes are respectively located at the ends of the long sides of the inner hole 32. On the end faces of both sides, the two ends of the anchor rod 35 are respectively provided with external threads, and the two ends of the anchor rod 35 are locked in the threaded holes of the two fixing frames 31, so that the two fixing frames 31 are respectively fixed on the concrete column 10 end faces on both sides. It should be noted that the fixing frame 31 of the present invention can be installed embedded in the concrete column 10, or the end surface of the fixing frame 31 can be attached to the surface of the concrete column 10, so that the prefabricated beam 20 passes through the inner hole 32 and interferes with the concrete column 10. on the concrete column 10.

Preferably, in order to adapt to different widths of concrete columns 10 and on-site installation errors, the anchor rod 35 of the present invention includes accommodating portions 351 at both ends and an adjustable portion 352 in the middle, the diameter of the accommodating portion 351 is greater than the diameter of the adjustable portion 352, The adjustable part 352 is telescopically installed between the two receiving parts 351 . When in use, the length of the anchor rod 35 can be changed by changing the overlapping length between the adjustable part 352 and the receiving part 351, so as to satisfy the different widths of concrete columns 10 or the different lengths between the two fixing frames 31 caused by installation errors. The error to reduce the installation error and improve the stability of the installation.

In another preferred embodiment of the present invention, the bottom of the fixture 31 of the present invention on the side away from the concrete column 10 is also provided with a support platform 36 , and the top surface of the support platform 36 is in contact with the bottom surface of the prefabricated beam 20 . After the prefabricated beam 20 is installed in the inner hole 32, the bottom end surface of the prefabricated beam 20 is directly placed on the top surface of the support table 36, thereby forming a supporting effect on the prefabricated beam 20 and improving the connection stability between beams and columns. At the same time, When hoisting the prefabricated beam 20, the supporting platform 36 can be used as a supporting point of the beam, which is convenient for centering and makes the construction more convenient and accurate. Preferably, in order to further improve the connection strength between the support platform 36 and the fixed frame 31 , the present invention further provides a reinforcing rib 37 between the support platform 36 and the fixed frame 31 . The reinforcing rib 37 may be a triangular plate or a connecting piece of other shapes such as a trapezoid.

It is worth noting that the support platform 36 of the present invention can be of invisible design or explicit design. Among them, the meaning of explicit design is that the top surface of the support platform 36 is in contact with the bottom surface of the prefabricated beam 20, and its installation structure is shown in FIG. 8 . The invisible design refers to that the supporting platform 36 of the present invention can be embedded in the prefabricated beam 20, and when installed, a step surface is set at the end face where the prefabricated beam 20 is connected with the inner hole 32, and the prefabricated beam 20 is embedded. In the step surface, the bottom end surface of the prefabricated beam 20 is parallel to the bottom end surface of the support platform 36, so that the prefabricated beam 20 and the support platform 36 are integrated, and the appearance is more beautiful. The connection guide between the fixing frames 31 makes the installation more convenient and fast, and its installation structure diagram is shown in FIG. 9 .

Further, the fixed frame 31 of the present invention is also provided with two parallel and spaced baffles 34, the baffles 34 are installed on the end face of the inner hole 32 facing away from the concrete column 10, and the two baffles 34 are respectively set Both sides of the long side of the inner hole 32 are parallel to each other. After the installation is completed, in order to further consolidate the connection strength between the concrete column 10 and the prefabricated beam 20, the gap formed by the two baffles 34 and the end faces of the prefabricated beam 20 can be used directly to pour slurry into the middle of the gap. Because the present invention directly utilizes the two baffles 34 as casting molds, the time for setting up the molds is saved, and the on-site construction is simpler and more convenient.

During use, when the prefabricated beam 20 is installed on one side, that is, when a T-shaped design is formed between the prefabricated beam 20 and the concrete column 10, the locking device 50 of the present invention is one, and the locking device 50 is fixed on the prefabricated beam 20 , is connected to the threaded hole on the end face of one of the fixing frames 31 through the energy dissipation member 40, while the threaded hole on the other fixing frame 31 is in an idle state.

And when the prefabricated beam 20 is installed on both sides, that is, when a cross-shaped design is formed between the prefabricated beam 20 and the concrete column 10, there are two locking devices 50 of the present invention, and the locking devices 50 are installed on the concrete column 10 respectively. Both sides, and the locking device 50 is respectively connected to the fixing frame 31 through the energy dissipation member 40 . Wherein, the locking device 50 includes a locking frame 51 installed on the prefabricated beam 20 , and the locking frame 51 is provided with a locking hole 53 adapted to the prefabricated beam 20 .

Further, please continue to refer to FIG. 5, and in combination with FIG. 6, the end face of the locking frame 51 of the present invention is provided with a semicircular lower groove 52, and the end face of the locking frame 51 is also installed A locking cover 54 is provided, and the locking cover 54 is provided with a semicircular upper groove 55 matching with the lower groove 52, and the upper groove 55 cooperates with the lower groove 52 to form a shape compatible with the energy-dissipating member 40 The fixing hole 56. When in use, one end of the energy-dissipating member 40 is locked in the threaded hole on the fixing bracket 31, and the other end can be restricted to the fixing hole 56 formed by the upper groove 55 and the lower groove 52 through the locking cover 54. In order to realize the fixation and installation of the energy dissipation component 40, the installation and replacement of the energy dissipation component 40 is more convenient and fast.

Preferably, the locking cover 54 of the present invention is fixed on the locking frame 51 through nuts 57 and bolts 58, and locking covers 54 are respectively provided on the opposite end faces of the locking frame 51, and the two opposite end faces Anchor rods 35 are arranged between the locking covers 54, and the two ends of the anchor rods 35 are respectively locked on the two opposite locking covers 54 through nuts. Because the anchor rod 35 is embedded in the prefabricated beam 20, the stable connection between the locking frame 51, the locking cover 54, and the prefabricated beam 20 can be realized by using the anchor rod 35, and the integrated design makes The connection between the concrete column 10 and the prefabricated beam 20 is more stable and reliable, the connection rigidity is greater, and the fixing effect is better.

Further, the position of the locking cover 54 of the present invention and the lower groove 52 on the end face of the locking frame 51 can be adjusted according to actual installation needs, such as the installation position of the energy dissipation device, to adjust the relative position, for example, in the locking frame 51, the four end faces are respectively provided with the lower groove 52 and the locking cover 54 adapted to the lower groove 52, or the lower groove 52 and the lower groove 52 are respectively arranged on the two opposite end faces of the locking frame 51. Adaptive locking cover 54, so as to meet different installation requirements or design connection strength requirements. The installation form is flexible, and the installation and use are convenient and quick.

It should be noted that the number of anchor rods 35 and energy-dissipating members 40 of the present invention can be two pieces, four pieces or six pieces. During use, the user can increase or decrease the corresponding number according to actual installation or connection strength requirements.

Finally, the method of the present application is only a preferred embodiment, and is not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a kind of concrete frame node, the concrete frame includes concrete column and precast beam, it is characterised in that described mixed Solidifying soil frame joint includes fixing device, dissipative member and locking device, and the fixing device is arranged on the concrete column, The locking device is installed on the precast beam, and one end of the dissipative member is detachable to be installed in the fixing device On, its other end is detachable to be installed on the locking device.

2. a kind of concrete frame node as claimed in claim 1, it is characterised in that the fixing device includes being fixed on institute The fixed mount on concrete column is stated, the fixed mount is provided with the endoporus being adapted to the precast beam, the fixed mount and also set There is mounting hole, one end of the dissipative member is removable to be installed in the mounting hole.

3. a kind of concrete frame node as claimed in claim 2, it is characterised in that two are additionally provided with the fixed mount and is put down The baffle plate that between-line spacing is set, the baffle plate is installed in the endoporus on the end face of the concrete column side, and described two Individual baffle plate is separately positioned on the long side both sides of the endoporus.

4. a kind of concrete frame node as claimed in claim 2, it is characterised in that the fixed mount is two, and described Two fixed mount parallel intervals are set, and described two fixed mounts are connected by anchor rod.

5. a kind of concrete frame node as claimed in claim 4, it is characterised in that the anchor rod includes the collecting at two ends Portion and middle adjustabel part, the diameter of the resettlement section are more than the diameter of adjustabel part so that adjustabel part extension type is installed in institute State between two resettlement sections.

6. a kind of concrete frame node as claimed in claim 2, it is characterised in that the fixed mount deviates from the concrete The bottom of post side is additionally provided with supporting table, and the bottom face of the top end face of the supporting table and the precast beam is inconsistent and described Reinforcement is additionally provided between supporting table and the fixed mount.

7. a kind of concrete frame node as claimed in claim 2, it is characterised in that the locking device is two, described Locking device is respectively installed in the concrete column both sides, and by the locking device respectively by the dissipative member with it is described Fixed mount is connected.

8. a kind of concrete frame node as described in claim 1 or 7, it is characterised in that the locking device includes installing Locking frame on the precast beam, the locking frame is provided with the locking hole being adapted to the precast beam.

9. a kind of concrete frame node as claimed in claim 8, it is characterised in that the end face of the locking frame is provided with half Circular low groove, and locking lid is also equiped with the end face of the locking frame, the locking lid is provided with and the groove The semicircular upper groove coordinated, the upper groove cooperatively forms what is be adapted with the dissipative member profile with the low groove Fixing hole, and the locking lid by bolt be fixed on it is described locking frame on.

10. a kind of concrete frame node as claimed in claim 8, it is characterised in that on the opposing end surface of the locking frame It is respectively equipped between the locking lid on locking lid, described two opposing end surfaces and is provided with anchor rod, the two ends of the anchor rod is distinguished By nut to be locked in two relative locking lids.