CN218714108U - Prefabricated lattice type steel reinforced concrete combined shear wall - Google Patents
Prefabricated lattice type steel reinforced concrete combined shear wall Download PDFInfo
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- CN218714108U CN218714108U CN202221908673.3U CN202221908673U CN218714108U CN 218714108 U CN218714108 U CN 218714108U CN 202221908673 U CN202221908673 U CN 202221908673U CN 218714108 U CN218714108 U CN 218714108U
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Abstract
The invention relates to a prefabricated lattice type steel rib concrete combined shear wall body component, which comprises a lattice type steel rib, a transverse batten and a concrete wall body completely wrapping a steel rib framework. The frame hidden columns are arranged at two ends of the shear wall, the hidden columns can be arranged in the middle of the wall body if necessary to improve the stress performance of the wall body, the vertical steel ribs are arranged between the frame hidden columns and the steel ribs, and the frame hidden columns and the steel ribs are connected into an integral steel rib framework through transverse lacing materials, after concrete is poured, the steel ribs are partially exposed, the site connection is facilitated, and the prefabricated lattice type steel rib concrete combined shear wall body is formed. The invention does not contain reinforcing steel bars, can solve the defects of the existing assembly type building structure system such as difficult connection in a construction site, and has the advantages of good mechanical property, improved production efficiency and the like.
Description
Technical Field
The invention belongs to the technical field of prefabricated building structures, and relates to a prefabricated lattice type steel reinforced concrete combined shear wall and a manufacturing method thereof, which can be widely applied to residential buildings and other shear wall structure system buildings.
Background
In recent years, the development of the assembly type building is greatly promoted in China, and the assembly type building is one of the fourteen-five key research and development projects of the national planning. However, the existing construction engineering construction mode in China still mainly adopts cast-in-place, the proportion and scale degree of the fabricated building are low, and the difference is large compared with the requirements of developing green buildings and developing advanced construction modes.
The shear wall member has high lateral movement resistance rigidity, can effectively reduce lateral movement, has certain ductility and good seismic performance, and is currently used as a seismic-resistant core part of multi-story and high-rise buildings. With the development of the prefabricated building in China, the prefabricated shear wall component becomes an important component in a prefabricated structural system, has the characteristics of meeting the connotation of housing industrialization, and is the development direction of the building industry in China.
The existing prefabricated assembly type shear wall components mainly comprise prefabricated reinforced concrete shear wall components, steel plate wall components and prefabricated steel reinforced concrete combined shear wall components. The prefabricated reinforced concrete shear wall component is formed by manufacturing a steel reinforcement framework in a factory, then erecting a template and pouring concrete, and the connection mode after the prefabricated reinforced concrete shear wall component is transported to the site mainly comprises a dry connection mode and a wet connection mode. The dry connection is difficult to form good rigid connection, and the mechanical property at the node is poor; the wet connection node needs to be poured in situ, a scaffold and a supporting system need to be set up during construction, and the subsequent working procedure construction can be carried out only when the concrete strength at the node needs to be maintained until the construction load requirement is met, so that the efficiency is low.
The steel plate wall members can be connected by bolts or welding seams, so that the connection is more convenient, but the matching performance with the building envelope is poor, and the phenomena of wall cracking, seam water leakage and the like are easily caused. Meanwhile, the fire resistance and corrosion resistance of the steel are poor, a series of protective measures need to be taken, the later maintenance cost is high, and the economical efficiency is poor.
The prefabricated steel-reinforced concrete composite shear wall member is a member formed by arranging a certain amount of steel ribs while manufacturing a steel bar framework in a factory, then supporting a template and pouring concrete, and mainly comprises a steel plate concrete composite shear wall member and an embedded steel-reinforced concrete composite member. However, there are also more reinforcing bars at its joint part generally, also have foretell steel bar connection problem, and the connection between reinforcing bar and the shaped steel skeleton is complicated in addition, also does not benefit to the closely knit pouring of later stage concrete simultaneously.
The current dry and wet connection classification is specifically divided into: five field construction methods, such as sleeve grouting connection, slurry anchor lap joint, cast-in-place section connection, bolt connection, prestress connection and the like, have more limitations and disadvantages.
(1) Grouting connection of sleeve
The sleeve grouting connection has wide application, and is one of the main connection technologies for realizing strong connection of steel bars and the like in the existing precast concrete structure, as shown in fig. 1. The sleeve grouting connection means that the embedded steel bars are inserted into the metal sleeves embedded into the precast concrete members in advance, and then cement-based grouting materials are poured. Is a reliable connection mode. However, this method also has significant disadvantages: the number of connecting nodes is large, the requirement on the production precision of the component is high, and if the position of a certain reinforcing steel bar is deviated, the component can be scrapped; the structure is complex, the technical requirements on field workers are high, and the construction quality is not easy to inspect; in addition, the cost of the sleeve is also high.
(2) Grout anchor lap joint
The grout anchor lap joint means that the embedded steel bars are inserted into a hole channel reserved in advance in the precast concrete member, and cement-based grouting material is poured, as shown in fig. 2. At present, the reliability of the slurry anchor lapping is verified by practical engineering, but the reliability is only concentrated on low-rise and multi-layer structures, and the application in high-rise and super-high-rise structures needs to be further verified, so that the application range of the slurry anchor lapping is limited to a certain extent. Because reinforcing bar and reservation hole need the one-to-one, it is higher to test piece preparation and construction accuracy requirement, and the construction is comparatively complicated, and the overlap joint length of overlength has caused great steel extravagant.
(3) Cast-in-place segment connection
The cast-in-place section connection means that a post-cast section is arranged between an upper prefabricated shear wall and a lower prefabricated shear wall, reinforcing steel bars (shown in figure 3) are connected through an extrusion sleeve or a hoop, and finally the wall bodies are connected into a whole through cast-in-place concrete. The cast-in-place section is simple and convenient to connect and operate, installation quality is controllable, but new and old concrete interface combination is not good, easily forms logical seam, and the cast-in-place section is difficult to pour closely knit problem also comparatively outstanding.
(4) Screw connection
The bolted connection is a "dry" connection construction, requiring no wet work to cast the concrete, as shown in fig. 4. The bolt connection is simple and convenient to operate, the installation quality is controllable, the construction efficiency is obviously improved, but the current research is less, and the application is not wide.
(5) Prestressed connection
The prestress connection means that the prefabricated shear wall components are reliably connected by tensioning the prestressed tendons. The prestressed tendons are generally non-adhesive tendons. The prestressed connection has the advantages of convenient construction, good deformation recovery capability and the like, and has a certain amount of research and application in foreign countries. However, the stress performance of the prefabricated shear wall adopting the prestressed connection is greatly different from that of a cast-in-place shear wall, and the prefabricated shear wall belongs to 'non-equal cast-in-place', and a design and calculation method of the prefabricated shear wall needs further research. In addition, the construction requirement of prestressing force is also higher.
The existing connection mode of prefabricated shear wall components has more or less defects and problems. Therefore, finding a novel prefabricated assembled shear wall component with high industrialization degree, wide application range, high construction efficiency, good mechanical property, economy and durability becomes an important subject on the development and innovation roads of the building engineering in China.
Disclosure of Invention
In order to overcome the defects of the existing prefabricated shear wall component, the invention provides a novel prefabricated lattice type steel reinforced concrete combined shear wall body and a manufacturing method thereof, and the novel prefabricated lattice type steel reinforced concrete combined shear wall body is used in an assembled building system. The invention can meet the requirements of standardized design, industrialized production and on-site integral assembly. During assembly, the exposed steel ribs of the wall body can be connected into a structural system by adopting welding, bolt connection, bolt welding mixed connection and other modes, so that the connection is convenient and fast. Meanwhile, after the connection of the steel ribs at the joint is completed, enough rigidity can be obtained without extra support, subsequent procedure construction can be performed without waiting for concrete pouring and curing in the joint area, and the construction efficiency can be greatly improved.
The technical scheme adopted by the invention is as follows:
the utility model provides a prefabricated lattice formula reinforcing bar concrete combination shear wall body component which characterized in that: comprises a steel skeleton frame consisting of a hidden column (101), a vertical steel rib (102) and a transverse binding material (103), and a concrete wall body (104); the steel skeleton in the lattice type steel skeleton concrete combined shear wall component is concealed in the concrete wall (104); frame embedded columns (101) are arranged at two ends of the lattice type steel reinforced concrete combined shear wall body, the embedded columns (101) are additionally arranged in the middle of the wall body to improve the stress performance of the wall body when necessary, and vertical steel ribs (102) are arranged in the middle of the lattice type steel reinforced concrete combined shear wall body; the hidden column (101) and the steel rib (102) as well as the steel rib (102) and the steel rib (102) are connected into an integral steel rib framework through a transverse lacing material (103), an exposed part (105) is formed at the end side after concrete is poured on the integral steel rib framework, and the exposed part (105) is used for field connection; the prefabricated lattice type steel reinforced concrete combined shear wall body is formed.
Prefabricated lattice formula reinforcing bar concrete combination shear wall body component of assembling, its characterized in that: cross-sectional forms include, but are not limited to, straight, L-shaped, T-shaped, cross-shaped, and arc-shaped.
Prefabricated lattice formula reinforcing bar concrete combination shear wall body component of assembling, its characterized in that: the dark column (101) includes, but is not limited to, a solid-belly column and a lattice column.
Prefabricated lattice formula reinforcing bar concrete combination shear wall body component of assembling, its characterized in that: the vertical steel ribs (102) comprise, but are not limited to, rolled section steel, welded section steel and cold-formed section steel; the cross-sectional form includes, but is not limited to, i-section steel, cross-section steel, L-section steel, and C-section steel.
Prefabricated lattice formula reinforcing bar concrete combination shear wall body component of assembling, its characterized in that: the vertical steel ribs (102) comprise one row and two rows.
Prefabricated lattice formula reinforcing bar concrete combination shear wall body component of assembling, its characterized in that: the transverse lacing material (103) comprises but is not limited to an angle steel lacing strip, a steel plate lacing plate and a steel bar.
Prefabricated lattice formula reinforcing bar concrete combination shear wall body component of assembling, its characterized in that: the embedded column (101) and the vertical steel rib (102) are connected into an integral steel rib framework through a transverse lacing material (103), and the transverse lacing material (103) is arranged along the length direction of the wall body in a continuous mode and comprises but is not limited to orthogonal and oblique crossing with the vertical steel rib (102); the connecting mode of the transverse decorative materials (103) comprises but is not limited to welding seam connection, bolt connection and bolt welding hybrid connection.
The technical advantages of the invention are as follows:
1) The shear wall walls are assembled on site through steel ribs, the steel ribs can be connected in a welding mode, a bolt connection mode, a bolt welding hybrid connection mode and the like, construction is convenient, and construction quality is easy to guarantee.
2) The steel rib connecting node has good bearing capacity and rigidity, can not need extra support or reduce external support, only needs a small amount of templates when the wall body is spliced and concrete is poured, and has the advantages of template saving, high construction efficiency and the like.
3) The steel skeleton is hidden in the concrete, and has good fire resistance, corrosion resistance and durability.
4) The shear wall body is prefabricated in a factory, so that the quality is easier to ensure.
5) The shear wall body contains steel ribs, so that the connection construction of the embedded parts is facilitated.
Drawings
Figure 1 prior art sleeve grouted connection.
Figure 2 prior art helical bars constrain the grout anchor overlap.
Fig. 3 illustrates a prior art ferrule connection.
Fig. 4 prior art bolted connection.
FIG. 5 is a schematic view of a wall of the present invention in partial cross-section.
FIG. 6 is a schematic view of a partial form of a stud according to the present invention.
FIG. 7 is a row of vertical steel ribs according to the present invention.
FIG. 8 is a partial cross-sectional view of the vertical steel rib according to the present invention.
Fig. 9 is a three-dimensional view of an exemplary configuration of the present invention.
Fig. 10 is a three-dimensional view of a steel skeleton according to an exemplary embodiment of the present invention.
Fig. 11 is a schematic elevation view of an exemplary construction of the present invention.
FIG. 12 is a schematic horizontal cross-section of an exemplary configuration of the present invention.
In the figure: a hidden column 101, a vertical steel rib 102, a transverse batten material 103, a concrete wall 104,
an exposed portion 105.
Detailed Description
The invention relates to a prefabricated lattice type steel rib concrete combined shear wall body component, which comprises a lattice type steel rib, a transverse batten and a concrete wall body completely wrapping a steel rib framework. The shear wall is provided with frame hidden columns at two ends, the hidden columns can be arranged in the middle of the wall body to improve the stress performance of the wall body if necessary, vertical steel ribs are arranged between the frame hidden columns and the steel ribs, and the frame hidden columns and the steel ribs are connected into an integral steel rib framework through transverse lacing materials, after concrete is poured, the steel ribs are partially exposed, so that the steel ribs and the steel ribs are convenient to connect on site, and the prefabricated lattice type steel rib concrete combined shear wall body is formed. The invention does not contain reinforcing steel bars, can solve the defects of the existing assembly type building structure system such as difficult connection in a construction site, and has the advantages of good mechanical property, improved production efficiency and the like.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
A typical structure of the prefabricated assembled lattice type steel reinforced concrete composite shear wall is shown in fig. 9, 10, 11 and 12.
A prefabricated lattice type steel reinforced concrete combined shear wall component comprises: comprises a steel skeleton frame consisting of a hidden column (101), a vertical steel rib (102) and a transverse binding material (103), and a concrete wall body (104); the steel skeleton in the lattice type steel skeleton concrete combined shear wall component is concealed in the concrete wall (104); frame embedded columns (101) are arranged at two ends of the lattice type steel reinforced concrete combined shear wall body, the embedded columns (101) are additionally arranged in the middle of the wall body to improve the stress performance of the wall body when necessary, and vertical steel ribs (102) are arranged in the middle of the lattice type steel reinforced concrete combined shear wall body; the hidden column (101) and the steel rib (102) as well as the steel rib (102) and the steel rib (102) are connected into an integral steel rib framework through a transverse lacing material (103), an exposed part (105) is formed at the end side after concrete is poured on the integral steel rib framework, and the exposed part (105) is used for field connection; the prefabricated lattice type steel reinforced concrete combined shear wall body is formed.
As shown in fig. 5, the cross-sectional forms of the prefabricated lattice type steel reinforced concrete composite shear wall member include, but are not limited to, a straight shape, an L shape, a T shape, a cross shape, and an arc shape or other curved shapes.
As shown in fig. 6, the prefabricated lattice type steel reinforced concrete composite shear wall includes, but is not limited to, solid columns and lattice columns, and the hidden columns (101) include solid columns and lattice columns.
Prefabricated assembled lattice formula reinforcing bar concrete composite shear wall body its characterized in that: the vertical steel ribs (102) comprise, but are not limited to, rolled section steel, welded section steel and cold-formed section steel; the cross-sectional form includes, but is not limited to, i-section steel, cross-section steel, L-section steel, and C-section steel.
Prefabricated assembled lattice formula reinforcing bar concrete composite shear wall body its characterized in that: the vertical steel ribs (102) comprise one row and two rows.
Prefabricated assembled lattice formula reinforcing bar concrete composite shear wall body its characterized in that: the transverse lacing material (103) comprises but is not limited to an angle steel lacing strip, a steel plate lacing plate and a steel bar.
As shown in fig. 9 and 10, the prefabricated lattice type steel rib concrete combined shear wall body is characterized in that the embedded column (101) and the vertical steel rib (102) are connected into an integral steel rib framework through a transverse binding material (103), and the transverse binding material (103) is arranged along the length direction of the wall body in a full-length mode and includes but is not limited to orthogonal and oblique crossing with the vertical steel rib (102); the connecting mode of the transverse decorative materials (103) comprises but is not limited to welding seam connection, bolt connection and bolt welding hybrid connection.
Prefabricated assembled lattice formula reinforcing bar concrete composite shear wall body its characterized in that: the steel materials used for the embedded column (101), the steel rib (102) and the transverse lacing material (103) comprise but are not limited to common structural steel and high-strength steel; the concrete used for the concrete wall (104) includes but is not limited to ordinary concrete, high-strength concrete and high-performance concrete.
The embedded column (101) is similar to an embedded column arranged in a steel reinforced concrete composite structure, and the integral stress performance of the wall body can be improved. The vertical steel ribs (102) replace vertical steel bars of a traditional shear wall, and the vertical steel ribs (102) can be connected through bolt connection, welding connection or bolt welding connection and the like in actual construction, so that various defects of steel bar connection of the traditional shear wall are avoided, and the on-site connection is more convenient; the rigidity of the steel ribs is far greater than that of the steel bars, so that the steel ribs can bear the load in the construction stage; the section area of the steel ribs is larger, and the integral bearing capacity of the wall is larger than that of the traditional shear wall. The transverse lacing material (103) replaces transverse horizontally distributed steel bars of the traditional shear wall, so that the cross section area is larger and the horizontal shear resistance is larger than that of the traditional shear wall while the connection is facilitated.
Prefabricated assembled lattice formula reinforcing bar concrete composite shear wall body its characterized in that: the prefabricated lattice type steel reinforced concrete combined shear wall body component is prefabricated in a factory and then is transported to a construction site for hoisting and splicing.
The prefabricated lattice type steel reinforced concrete combined shear wall body is manufactured and constructed in the following sequence:
1) manufacturing a hidden column (101), a vertical steel rib (102) and a transverse batten material (103);
2) The frame hidden columns (101) and the vertical steel ribs (102) are connected through transverse batten materials (103), and the connection mode can adopt welding seam connection, bolt welding mixed connection and the like;
3) Reserving the thickness of a concrete protective layer at two sides of the shear wall wallboard through cement cushion blocks, and then supporting a template for pouring concrete;
4) And pouring shear wall body concrete, and curing and forming to form the prefabricated lattice type steel reinforced concrete combined shear wall body.
The embodiments of the present invention are described in detail above with reference to the drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made on the embodiments within the scope of the principle and technical spirit of the invention.
Claims (7)
1. The utility model provides a prefabricated lattice formula reinforcing bar concrete combination shear wall body component which characterized in that: comprises a steel skeleton frame consisting of a hidden column (101), a vertical steel rib (102) and a transverse binding material (103), and a concrete wall body (104);
the steel skeleton in the lattice type steel skeleton concrete combined shear wall component is concealed in the concrete wall (104);
frame embedded columns (101) are arranged at two ends of the lattice type steel reinforced concrete combined shear wall body, the embedded columns (101) are additionally arranged in the middle of the wall body to improve the stress performance of the wall body when necessary, and vertical steel ribs (102) are arranged in the middle of the lattice type steel reinforced concrete combined shear wall body; the hidden column (101) and the steel rib (102) as well as the steel rib (102) and the steel rib (102) are connected into an integral steel rib framework through a transverse lacing material (103), an exposed part (105) is formed at the end side after concrete is poured on the integral steel rib framework, and the exposed part (105) is used for field connection;
the prefabricated lattice type steel reinforced concrete combined shear wall is formed.
2. The prefabricated assembled lattice type steel reinforced concrete combined shear wall component of claim 1, wherein: cross-sectional forms include, but are not limited to, straight, L-shaped, T-shaped, cross-shaped, and arc-shaped.
3. The prefabricated assembled lattice type steel reinforced concrete combined shear wall component of claim 1, wherein: the dark column (101) includes, but is not limited to, a solid-belly column and a lattice column.
4. The prefabricated assembled lattice type steel reinforced concrete combined shear wall component of claim 1, wherein: the vertical steel ribs (102) comprise but are not limited to rolled section steel, welded section steel and cold-formed section steel;
the cross-sectional form includes, but is not limited to, i-section steel, cross-section steel, L-section steel, and C-section steel.
5. The prefabricated assembled lattice type steel reinforced concrete combined shear wall component of claim 1, wherein: the vertical steel ribs (102) comprise one row and two rows.
6. The prefabricated assembled lattice type steel reinforced concrete combined shear wall component of claim 1, wherein: the transverse lacing material (103) comprises but is not limited to an angle steel lacing strip, a steel plate lacing plate and a steel bar.
7. The prefabricated assembled lattice type steel reinforced concrete combined shear wall component of claim 1, wherein: the embedded column (101) and the vertical steel rib (102) are connected into an integral steel rib framework through a transverse lacing material (103), and the transverse lacing material (103) is arranged along the length direction of the wall body in a continuous mode and comprises but is not limited to orthogonal and oblique crossing with the vertical steel rib (102); the connecting mode of the transverse decorative materials (103) comprises but is not limited to welding seam connection, bolt connection and bolt welding hybrid connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221908673.3U CN218714108U (en) | 2022-07-22 | 2022-07-22 | Prefabricated lattice type steel reinforced concrete combined shear wall |
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|---|---|---|---|
| CN202221908673.3U CN218714108U (en) | 2022-07-22 | 2022-07-22 | Prefabricated lattice type steel reinforced concrete combined shear wall |
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| CN218714108U true CN218714108U (en) | 2023-03-24 |
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| CN202221908673.3U Active CN218714108U (en) | 2022-07-22 | 2022-07-22 | Prefabricated lattice type steel reinforced concrete combined shear wall |
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