CN111910794A - Prefabricated wall structure connected by soft cables - Google Patents
Prefabricated wall structure connected by soft cables Download PDFInfo
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- CN111910794A CN111910794A CN202010847364.9A CN202010847364A CN111910794A CN 111910794 A CN111910794 A CN 111910794A CN 202010847364 A CN202010847364 A CN 202010847364A CN 111910794 A CN111910794 A CN 111910794A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/64—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete
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Abstract
The invention discloses a prefabricated wall structure connected by soft cables, which comprises a prefabricated wall body, wherein the vertical connecting side surface of the prefabricated wall body is of a groove structure, the vertical connecting side surface of the groove structure is alternately provided with the soft cables and reinforcing parts extending out of the groove structure, when 2 adjacent prefabricated wall bodies are connected, the soft cables at two sides are overlapped and then penetrate through vertical inserting ribs for connection, and concrete is poured in the groove structure to form a core column. The structure improves the stress performance of the soft cable connection node through various strengthening measures, enlarges the application range of soft cable connection and improves the reliability of the node.
Description
Technical Field
The invention relates to a prefabricated wall structure, in particular to a prefabricated wall structure connected by soft cables.
Background
The soft cable connection is a common assembly type connection method in Europe, and the soft cables are embedded in prefabricated wallboards, and the two wallboards are connected by using dowel bars and grouting concrete, so that the soft cables are commonly used for the vertical joint structural connection of a post-cast area between the wallboards. Compared with other assembly type connection modes, the steel bar connecting device has the advantages of less steel bar consumption, simple and convenient field installation and convenient transportation, and can be directly used as a hoisting point. However, due to the lack of corresponding national specifications and node reinforcing measures, most engineers lack knowledge about the node mode and consider that the node connection mode lacks reliability, and therefore the node connection mode is rarely applied domestically.
When the soft cable connection node is stressed, the weak part is a new concrete interface between grouting concrete and precast concrete, the new concrete interface and the old concrete interface can only resist through interface bearing capacity and the soft cable, and a through transverse reinforcing steel bar and a hoop reinforcement for restraining a core column are lacked, so that the stress performance of the node is weaker than that of a sleeve connection reinforcing steel bar mode in common assembly type structure connection, and particularly under the action of an earthquake, the node can become a weak link and is not beneficial to the overall safety of a building. At present, the soft cable connection related patents are few, and most of the soft cable connection related patents are related to the embedded part, so that the reinforcement measures for the performance of the soft cable connection node are lacked, and the applicable range of the soft cable connection is greatly limited.
The patent "a connection structure of prefabricated infilled wall and prefabricated post or prefabricated shear wall" (CN 201320114786.0), including prefabricated infilled wall, prefabricated post or prefabricated shear wall, anchor reinforcing bar, embedded nut, annular lasso, soft cable connecting piece, logical long reinforcing bar, stock nut, stock bolt, checkpost and recess. The corresponding connecting sides of the prefabricated filler wall and the prefabricated column or the prefabricated shear wall of the connecting structure are uniformly provided with embedded nuts with horizontal anchoring reinforcing steel bars, the corresponding embedded nuts among the components are connected by using a soft cable connecting piece with an annular lasso in the middle after the prefabricated filler wall and the prefabricated column or the prefabricated shear wall are hoisted in place, and concrete is cast in situ after the annular lasso is internally provided with vertical through-length reinforcing steel bars, so that the prefabricated filler wall and the prefabricated column or the prefabricated shear wall are integrated. Has the advantages of being capable of being stacked and transported, convenient for field installation, etc. The defect is that the operation is complex by adopting the mode of connecting the long rod bolt and the embedded nut, and the installation can be carried out only by a large working face and tools.
The patent "a soft cable connector, prefabricated member and wallboard" (CN 201520429288.4) comprises a soft cable, a metal protection box and a soft cable fixing mould. The soft cable connecting piece utilizes the soft cable fixing mould to control the extension length and the anchoring depth of the soft cable, and is simple to manufacture. The method has the defects of lack of corresponding soft cable connection strengthening measures and inapplicability to middle and high-rise assembled buildings with high node requirements.
The patent "a connection structure system for assembled shear wall" (CN 201821625442.5), including rope and shear wall, be two prefabricated shear wall bodies that are horizontal setting and be two prefabricated shear wall bodies that set up from top to bottom. The two prefabricated shear walls which are horizontally arranged comprise a first prefabricated shear wall body and a second prefabricated wall body, the first prefabricated shear wall body and the second prefabricated wall body are connected through a soft cable, and the two prefabricated shear wall bodies which are vertically arranged comprise an upper prefabricated shear wall body and a lower prefabricated shear wall body and are connected with the prefabricated floor slabs through connecting ribs. The integrity of the wallboard connecting node is enhanced through the connecting structure of the soft cable, and the force transmission between the wallboards is facilitated; the upper wall body and the lower wall body are connected through the grout anchor, so that the production process is simplified, and the working efficiency is improved. The disadvantages are that only a horizontal and up-and-down shear wall connection mode is provided, corresponding soft cable connection reinforcing measures are lacked, and the method is not suitable for medium and high-rise assembled buildings with high node requirements.
The patent "a connection structure system for assembled shear force wall" (CN 201821625456.7), including being two prefabricated shear force wall bodies that are horizontal setting and being two prefabricated shear force wall bodies that set up from top to bottom, two prefabricated shear force wall bodies that are horizontal setting include about prefabricated shear force wall body. The metal box is arranged in a notch formed by the left prefabricated shear wall body and the right prefabricated shear wall body, two sides of the metal box are respectively connected with the left prefabricated shear wall body and the right prefabricated shear wall body through fasteners, and the two prefabricated shear wall bodies which are arranged up and down are connected through connecting reinforcing steel bars. The shear wall component is simple to produce, no ribs are arranged around the shear wall, when the shear wall component is produced, the left prefabricated shear wall and the right prefabricated shear wall are connected with the metal box through the bolt pair twisted embedded parts, and the upper wall body and the lower wall body are connected through the connecting steel bars, so that the production process is simplified, and the working efficiency is greatly improved. The disadvantage is that the connection mode has weak nodes and is not suitable for main stressed components and structural nodes needing to consider the earthquake action.
In summary, the prior art has the following problems:
1. the shearing resistance and the pulling resistance of the soft cable connection node are weak, so that the applicability of the soft cable connection is influenced;
2. when the wall plate is vertically arranged, the soft cables in the wall plate can turn, and if no fixing and improving measures are adopted, uneven stress is easy to occur, so that the soft cables are damaged;
3. the soft cable connecting core column is lack of the constraint of the stirrups, so that the core column concrete is easy to damage;
4. the prefabricated wall body is easy to crack or even damage at the weak position of the edge in the process of connecting the soft cable.
Disclosure of Invention
The invention aims to provide a prefabricated wall structure connected by using soft cables. The structure improves the stress performance of the soft cable connection node through various strengthening measures, enlarges the application range of soft cable connection and improves the reliability of the node.
The technical scheme of the invention is as follows: the utility model provides an use prefabricated wall structure of soft cable connection, is including prefabricated wall body, and the vertical connection side of prefabricated wall body is groove structure, and groove structure's vertical connection side is provided with soft cable and the reinforcement that stretches out to groove structure in turn, and when 2 adjacent prefabricated wall body connects, the soft cable of both sides passes through vertical dowel bar after overlapping and connects, pours concrete among the groove structure and forms the stem.
In the prefabricated wall structure connected by the soft cables, the extending end of the reinforcing part is of a T-shaped structure, and the reinforcing part is installed in a pre-buried mode or a drilling and bar planting mode on the vertical connecting side face.
In the prefabricated wall structure connected by the soft cables, the vertical connecting side faces are provided with the plurality of key grooves at intervals, and the soft cables are arranged at the key grooves.
In the prefabricated wall structure connected by the soft cables, the surfaces of the groove structures on the vertical connecting side surfaces are roughened to form rough surfaces.
In the prefabricated wall structure connected by the soft cables, before the core column is poured, the old concrete interface reinforcing agent is coated on the surface of the groove structure on the vertical connecting side surface.
In the prefabricated wall structure connected by the soft cables, in the core column pouring process, the core column concrete is doped with the expanding agent, and the core column concrete is higher than the concrete of the prefabricated wall by one grade.
In the prefabricated wall structure connected by the soft cables, anti-cracking reinforcing steel bars are further arranged in the prefabricated wall beside the groove structure.
In the prefabricated wall structure connected by the soft cables, when the soft cables need to turn in the prefabricated wall, the turning steel bars are arranged on the inner sides of turning points of the soft cables.
In the prefabricated wall structure connected by the soft cables, the surface of the prefabricated wall on the outer side of the core column is covered with carbon fiber cloth or adhesive steel.
In the prefabricated wall structure connected by the soft cables, when the carbon fiber cloth is adopted, the adhesive is coated on the side surface of the prefabricated wall, and the carbon fiber cloth is arranged in a cross manner according to the connection positions of the soft cables which are staggered up and down; when sticky steel is adopted, the width of the sticky steel is larger than that of the core column.
The invention has the beneficial effects that: compared with the prior art, the invention has the following advantages:
(1) reinforcing parts are supplemented at the vertical connecting side surfaces of the prefabricated wall body, and the reinforcing parts are poured in the core column to improve the shearing resistance and the pulling resistance of the node;
(2) the vertical connecting side surface is subjected to napping treatment, and is coated with an old concrete interface reinforcing agent, so that the bearing capacity of a new concrete interface and an old concrete interface is effectively improved;
(3) key grooves are arranged on the vertical connecting side surfaces, an occlusion interface can be automatically formed in the core column pouring process, and the core column and the prefabricated wall body are effectively connected;
(4) the core column concrete is mixed with an expanding agent. Such as aluminum powder, alum and the like, the expansion force generated in the concrete can increase the friction force of new and old poured concrete;
(5) the core column concrete is higher than the precast concrete by one grade, so that the concrete cementing power is increased;
(6) when the soft cable needs to turn in the wall body, the turning steel bars are arranged to fix the turning direction of the soft cable, and the damage of the anchoring section of the soft cable caused by local stress concentration due to uneven stress of the soft cable during turning is prevented;
(7) after the core column is poured, carbon fiber cloth or bonded steel is adopted to restrain core column concrete, so that the core column is protected from being damaged easily in the stress process;
(8) anti-crack reinforcing steel bars are arranged at the fragile positions of the edges of the prefabricated wall body, so that cracks are prevented from being generated when the wall body is stressed too much in the soft cable stress process.
Through the reinforcement measures, the prefabricated wall structure using the soft cable connection is formed, the damage conditions of the soft cable connection are prevented, the bearing capacity of the soft cable connection is effectively improved, the applicable conditions of the soft cable connection are greatly expanded, and the reliability of the soft cable connection node is improved. The shear wall plate system can be applied to complex building structure systems such as multi-storey and high-storey shear wall plate system assembled buildings and the like besides the hoisting points of low-storey buildings and various components.
Drawings
FIG. 1 is a side view of a prefabricated wall panel;
FIG. 2 is a side partial schematic view of a prefabricated wall panel;
FIG. 3 is a schematic view of a reinforcement;
FIG. 4 is a plan view of a prefabricated wall using soft cable connections;
FIG. 5 is a plan view of wall panels joined vertically using flexible cables;
FIG. 6 is a sectional view taken along line A-A of FIG. 4;
FIG. 7 is a plan view of a prefabricated wall body with soft cables connected after core columns are poured;
FIG. 8 is a schematic diagram of a carbon fiber cloth used after the pouring of the wallboard connecting core column is completed;
figure 9 is a schematic diagram of the wall panel connecting core post after casting with sticky steel.
Reference numerals: 1-prefabricated wall body, 2-soft cable, 3-reinforcing piece, 4-vertical connecting side face, 5-vertical dowel bar, 6-anti-crack rebar, 7-steering rebar, 8-keyway, 9-dowel bar slot, 10-carbon fiber cloth, 10-sticky steel and 12-core column.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
The embodiment of the invention comprises the following steps: a prefabricated wall structure connected by soft cables is shown in the attached drawings 1-9 and comprises a prefabricated wall body 1, wherein the vertical connecting side surface 4 of the prefabricated wall body 1 is of a groove structure, soft cables 2 and reinforcing parts 3 extending into the groove structure are alternately arranged on the vertical connecting side surface 4 of the groove structure, when two adjacent prefabricated wall bodies 1 are connected, the soft cables 2 on two sides are overlapped and penetrate through vertical inserting ribs 5 to be connected, the bottom ends of the vertical inserting ribs 5 are inserted into inserting rib inserting grooves 9 formed in the bottom of a foundation, and concrete is poured into the groove structure to form core columns 12.
The end that extends of reinforcement 3 is T font structure, and reinforcement 3 adopts pre-buried or the drilling bar planting mode of planting on vertical connection side 4 to install.
A plurality of key grooves 8 are formed in the vertical connecting side face 4 at intervals, and the soft rope 2 is arranged at the key grooves 8.
And roughening treatment is carried out on the surface of the groove structure of the vertical connecting side surface 4 to form a rough surface.
Before the core column 12 is poured, the surface of the groove structure of the vertical connecting side surface 4 is coated with the old concrete interface reinforcing agent.
In the process of pouring the core column 12, the core column concrete is doped with the expanding agent, and the core column concrete is higher than the concrete of the prefabricated wall body 1 by one grade.
And anti-cracking reinforcing steel bars 6 are also arranged in the prefabricated wall body 1 beside the groove structure.
When the soft cable 2 needs to be turned in the prefabricated wall body 1, a turning steel bar 7 is arranged on the inner side of the turning point of the soft cable.
The surface of the prefabricated wall body 1 on the outer side of the core column 12 is covered with carbon fiber cloth 10 or adhesive steel 11.
When the carbon fiber cloth 10 is adopted, the adhesive is coated on the side surface of the prefabricated wall body 1, and the carbon fiber cloth 10 is arranged in a cross manner according to the connection positions of the soft cables 2 which are staggered up and down; when sticky steel 11 is used, the width of sticky steel 11 is larger than that of stem 12.
The forming process of the prefabricated wall body structure mainly comprises 2 stages, a prefabricated wall body 1 manufacturing stage and a prefabricated wall body 1 installing stage.
Firstly, a prefabricated wall body 1 manufacturing stage:
(1) according to the vertical or parallel connection mode of the prefabricated wall body 1, corresponding edge anti-cracking reinforcing steel bars 6 and steering reinforcing steel bars 7 are arranged, and the binding work of various reinforcing steel bars of the prefabricated wall body 1 and embedded parts of the soft cables 2 is completed;
(2) the reinforcing member 3 is arranged in a pre-buried or post-mounted manner. If an embedded mode is adopted, the reinforcing piece 3 and the reinforcing steel bars are connected and fixed at the manufacturing stage of the prefabricated wall body 1. If a rear-mounted installation mode is adopted, after the prefabricated wall body 1 is manufactured, drilling holes and planting ribs on the vertical connecting side surfaces 4, and installing the reinforcing parts 3;
(3) the prefabricated wall body 1 is poured by the supporting template, and a key groove 8 is formed in the vertical connecting side surface 4;
(4) and (4) when the concrete meets the mould removing requirement, removing the mould plate, and roughening the pouring position of the core column 4 on the vertical connecting side surface to form a rough surface. The napping treatment includes the following 3 methods:
A. cutting a groove on the vertical connecting side surface 4 by using a cutting machine;
B. dipping cement paste by using a broom tool and beating the vertical connecting side surface 4 to form convex points on the surface;
C. and (4) marking a deep groove on the vertical connecting side surface 4 by adopting ultrahigh pressure water gun jet flow.
(5) And after the steps are finished, finishing the manufacturing stage of the prefabricated wall body 1.
Second, prefabricated wall panel mounting stage
(1) When two prefabricated walls 1 are installed, firstly, one prefabricated wall 1 is fixed with a foundation, the other prefabricated wall 1 is hoisted by using a crane, a new and old concrete interface agent is smeared on the vertical connecting side surface 4 of the prefabricated wall 1, then, the soft cables 2 of the two prefabricated walls 1 are overlapped to leave a space of a dowel 5, the dowel 5 is inserted into the centers of the soft cables 2 of the two prefabricated walls 1, the bottom ends of the dowel 5 are fixed in dowel slots 9, and after the installation, the hoisted prefabricated wall 1 is fixed on the foundation and is abutted against or reserved with the other prefabricated wall 1 for a certain space;
(2) erecting a formwork at the joint of the two prefabricated walls 1, pouring concrete which is added with an expanding agent and has the concrete strength grade higher than that of the prefabricated walls by 1 grade into the 2 symmetrically arranged groove structures to form a core column 12, and removing the formwork when the concrete reaches the formwork removal strength;
(3) the carbon fiber cloth 10 or the sticky steel 11 is adopted to reinforce the core column, when the carbon fiber cloth 10 is adopted, the adhesive is smeared on the surface of the prefabricated wall body 1 on the outer side of the core column 12, and the carbon fiber cloth 10 is arranged in a cross mode according to the connection positions of the soft cables which are staggered up and down. When the sticky steel 11 is adopted, after the adhesive is smeared on the surface of the prefabricated wall body 1 at the outer side of the core column, the sticky steel 11 is pasted on the surface of the prefabricated wall body 1, the core column 12 and part of the prefabricated wall body 1 are covered by the area of the sticky steel 11 in the pasting process, and expansion screws are adopted for fixing if necessary;
(4) after the installation work is finished, the prefabricated wall structure connected by the soft cables is finished.
The prefabricated wall structure of the invention can effectively solve the following problems:
the first problem is that: the shearing resistance and the pulling resistance of the soft cable connection node are weak, and the applicability of the soft cable connection is influenced.
The solution is as follows:
(1) reinforcing parts 3 are supplemented at the positions of the vertical connecting side surfaces 4 of the prefabricated wall body 1, and the reinforcing parts are poured in the core column 12 to improve the shearing resistance and the pulling resistance of the node;
(2) the vertical connecting side surface 4 is subjected to napping treatment and is coated with an old concrete interface reinforcing agent, so that the bearing capacity of a new concrete interface and an old concrete interface is effectively improved;
(3) the key grooves 8 are arranged on the vertical connecting side surfaces 4, so that an occlusion interface can be automatically formed in the pouring process of the core column 12, and the core column 12 and the prefabricated wall body 1 are effectively connected;
(4) the core column concrete is mixed with an expanding agent. Such as aluminum powder, alum and the like, the expansion force generated in the concrete can increase the friction force of new and old poured concrete;
(5) the core column concrete is higher than the precast concrete by one grade, and the concrete cementing power is increased.
The second problem is that: when the wallboard is vertically arranged, the soft cables in the wallboard can turn, and if no fixing and improving measures are adopted, uneven stress is easy to occur, so that the soft cables are damaged.
The solution is as follows: when the soft cable 2 needs to turn in the prefabricated wall body 1, the turning steel bars 7 are arranged to fix the turning direction of the soft cable 2, and the soft cable 2 is prevented from being stressed unevenly to generate local stress concentration during turning so that the anchoring section of the soft cable is prevented from being damaged.
The third problem is that: the soft cable connecting core column is lack of restraint of the stirrups, so that the core column concrete is easy to damage.
The solution is as follows: after the core column 12 is poured, the carbon fiber cloth 10 or the sticky steel 11 is adopted to restrain the core column concrete, so that the core column 12 is protected from being damaged easily in the stress process.
The fourth problem is that: the prefabricated wall body is easy to crack or even damage at the weak position of the edge in the process of connecting the soft cable.
The solution is as follows: anti-crack reinforcing steel bars 6 are arranged at the fragile positions of the edges of the prefabricated wall body, so that cracks are prevented from being generated when the prefabricated wall body 1 is stressed too much in the stress process of the soft cables 2.
In the use process of the prefabricated wall structure, the following matters should be noted:
1) the node strengthening measures can be adopted wholly or partially according to specific requirements.
2) The reinforcing steel bars of the reinforcing part 3 are rough-surfaced reinforcing steel bars, so that the pulling resistance is improved, such as deformed steel bars.
3) The reserved joint bar slots 9 are slots with the depth not less than 5cm and the diameter slightly greater than the diameter of the joint bar 5 according to the positions before the prefabricated wall body 1 is installed.
4) When the soft cable 2 needs to be vertically steered, the steering steel bar 7 is arranged at the corner position of the soft cable 2 to prevent the soft cable 2 from being damaged by local stress concentration caused by uneven stress when the soft cable 2 is steered, and the diameter of the steering steel bar 7 is not smaller than 10 mm.
5) The edge of the prefabricated wall body 1 is provided with anti-cracking reinforcing steel bars 6, so that cracks are prevented from being generated at the end part of the prefabricated wall body 1 due to overlarge stress of the joints, and the diameter of each anti-cracking reinforcing steel bar 6 is not smaller than 8 mm.
6) The reinforcing member 3 may be arranged in a pre-buried or post-installed manner. If an embedded mode is adopted, the reinforcing piece 3 and the reinforcing steel bars are connected and fixed at the manufacturing stage of the prefabricated wall body 1. If a rear-mounted installation mode is adopted, after the prefabricated wall body 1 is manufactured, the vertical connecting side face 4 is drilled and embedded with steel bars, and the reinforcing part 3 is installed.
7) The soft rope 2 is made of steel twisted ropes, and the model and the size are determined according to actual needs.
8) The vertical distance between the soft ropes 2 arranged on the two sides of the same position is less than 4 times of the diameter of the steel twisted rope and is not more than 30 mm. It has been found through research that the vertical spacing cannot be too large, which would affect the tensile properties. Within this range, the effect of the soft cord 2 is remarkable.
9) The strength grade of the core column concrete is higher than that of the prefabricated wall board by 1 grade.
10) The core column concrete is mixed with an expanding agent. Such as aluminum powder, alum and the like, the friction force of new and old poured concrete can be increased by generating expansive force in the concrete.
11) The depth of the key groove 8 is not less than 20mm, the angle of the external corner of the key groove 8 is not less than 60 degrees, the width of the key groove 8 comprises the width of the bottom in the key groove 8 and the oblique extending width of the key groove 8, and the width of the key groove is not less than 3 times of the depth of the key groove 8 and not more than 10 times of the depth of the key groove. The best effect of the shearing resistance of the key groove 8 is ensured.
12) The concrete interface agent coated on the vertical connecting side surface 4 can enhance the bonding force to the base layer and meet the requirements of water resistance, damp and heat resistance and freeze-thaw resistance.
13) The concrete pouring of the core column needs to be carried out before the concrete interface agent is air-dried, so that the effective action of the concrete interface agent is ensured.
14) The carbon fiber cloth 10 is made of conductive material, and is far away from electrical equipment and power supply and takes reliable protection measures when placed and constructed.
15) The fiber direction of the carbon fiber cloth 10 should form an angle of 45 degrees with the connection direction of the upper and lower soft cables. Since the prefabricated wall 1 is pulled and sheared, the core column 12 and the prefabricated wall 1 are damaged, the damage cracks of the prefabricated wall 1 develop along the angle of 45 degrees, the carbon fiber cloth 10 is used for being pulled, and the damage cracks of the prefabricated wall 1 develop along the angle of 45 degrees, so that the arrangement mode can be used for reinforcing the fragile places of the prefabricated wall 1 and the core column 12 through the carbon fiber cloth 10.
16) The core column 12 and part of the prefabricated wall body 1 are covered by the area of the adhesive steel 11, and the adhesive steel 11, the core column 12 and the prefabricated wall body 1 are effectively connected together.
Claims (10)
1. The utility model provides an use prefabricated wall structure of soft cable connection which characterized in that: including prefabricated wall body (1), vertical connection side (4) of prefabricated wall body (1) are groove structure, and groove structure's vertical connection side (4) are provided with in turn and stretch out to groove structure's soft cable (2) and reinforcement (3), and when 2 adjacent prefabricated wall bodies (1) are connected, the soft cable (2) of both sides are overlapped back and are passed through vertical dowel bar (5) and connect, and concreting forms stem (12) in the groove structure.
2. The prefabricated wall structure connected by flexible cables as claimed in claim 1, wherein: the extension end of the reinforcing part (3) is of a T-shaped structure, and the reinforcing part (3) is installed in a pre-buried mode or a drilling and bar planting mode on the vertical connecting side face (4).
3. The prefabricated wall structure connected by flexible cables as claimed in claim 1, wherein: a plurality of key grooves (8) are formed in the vertical connecting side face (4) at intervals, and the soft cables (2) are arranged at the key grooves (8).
4. The prefabricated wall structure connected by flexible cables as claimed in claim 1, wherein: and roughening treatment is carried out on the surface of the groove structure of the vertical connecting side surface (4) to form a rough surface.
5. The prefabricated wall structure connected by flexible cables as claimed in claim 1, wherein: before the core column (12) is poured, an old concrete interface reinforcing agent is coated on the surface of the groove structure of the vertical connecting side surface (4).
6. The prefabricated wall structure connected by flexible cables as claimed in claim 1, wherein: in the pouring process of the core column (12), an expanding agent is doped into core column concrete, and the core column concrete is higher than the concrete of the prefabricated wall body (1) by one grade.
7. The prefabricated wall structure connected by flexible cables as claimed in claim 1, wherein: and anti-cracking reinforcing steel bars (6) are also arranged in the prefabricated wall body (1) beside the groove structure.
8. The prefabricated wall structure connected by flexible cables as claimed in claim 1, wherein: when the soft cable (2) needs to turn in the prefabricated wall body (1), a turning steel bar (7) is arranged on the inner side of a turning point of the soft cable.
9. The prefabricated wall structure connected by flexible cables as claimed in claim 1, wherein: the surface of the prefabricated wall body (1) on the outer side of the core column (12) is covered with carbon fiber cloth (10) or adhesive steel (11).
10. The prefabricated wall structure connected by flexible cables as claimed in claim 9, wherein: when the carbon fiber cloth (10) is adopted, the adhesive is coated on the side surface of the prefabricated wall body (1), and the carbon fiber cloth (10) is arranged in a cross manner according to the connection position of the soft cables (2) which are staggered up and down; when the sticky steel (11) is adopted, the width of the sticky steel (11) is larger than that of the core column (12).
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| CN202010847364.9A CN111910794A (en) | 2020-08-21 | 2020-08-21 | Prefabricated wall structure connected by soft cables |
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| CN202010847364.9A CN111910794A (en) | 2020-08-21 | 2020-08-21 | Prefabricated wall structure connected by soft cables |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502941A (en) * | 2021-07-23 | 2021-10-15 | 北京建筑大学 | Connecting structure, building structure and preparation method of building structure |
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