Fabricated wall cast-in-place joint connecting structure

Abstract

The utility model discloses a fabricated wall cast-in-place joint connecting structure which is used for connecting an L-shaped cast-in-place joint with a first prefabricated wall panel and a second prefabricated wall panel. The structure comprises an L-shaped plate body I, an internal corner back ridge and a plurality of square steels I, and further comprises an L-shaped plate body II, an external corner back ridge and a plurality of square steels II. A plurality of through-wall bolts penetrate through related parts and are fixed by nuts, so that stable connection between the parts is realized. Meanwhile, the cast-in-place node and the prefabricated wall panel are connected through a mortise and tenon nesting reinforcing structure, small tenons are arranged on the tenons, the tenons are distributed on the cast-in-place node or the prefabricated wall panel corresponding to small mortises, and optical fiber sensors are embedded in the tenons and the small tenons. The utility model aims to solve the problems that the cast-in-place node connection stability of the fabricated wall is poor and the structure health cannot be monitored in real time, and through the collaborative operation of all structures, the reliability and safety of the connection are improved, and the real-time monitoring of the node state is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building structure connection technical field, more specifically, the utility model relates to the assembly type wall cast-in-place joint connecting structure. BACKGROUND

[0002] In the field of fabricated buildings, the connection quality of the fabricated wall cast-in-place joint plays a key role in the overall stability and safety of the building structure. Currently, the traditional fabricated wall cast-in-place joint connection method has many problems that need to be solved.

[0003] In the existing connection method, a large number of through-wall bolts are often used to ensure the stability of the joint. On the one hand, a large number of through-wall bolts increase the material cost. As a key component of the connection, the procurement cost of the through-wall bolt cannot be ignored. The more the number of through-wall bolts used, the higher the overall material cost. Moreover, in order to meet the structural strength requirements, high-strength through-wall bolts are often selected, which further increases the cost. On the other hand, the installation of a large number of through-wall bolts significantly increases the construction difficulty and time cost. In the construction site, the position of each through-wall bolt needs to be accurately positioned, and then fixed with a nut after passing through multiple structural components. The operation process is complex and prone to deviation. Any mistake in the process may affect the overall connection quality, leading to rework and greatly reducing the construction efficiency.

[0004] In addition to the problem of large number of through-wall bolts, the stability of the existing connection structure also has deficiencies. When facing larger horizontal loads such as earthquake force, wind force, or vertical loads, the joint is prone to looseness, deformation, and even damage, which may cause the wall to crack and the structure to lose stability. Simple bolt connections or welding methods, for example, cannot effectively disperse and transfer the stress at the joint. With the passage of time and the slight deformation of the structure, the stress concentration at the connection site increases, reducing the reliability of the connection.

[0005] At the same time, the existing connection method cannot monitor the health status of the joint in real time. During the use of the building, the joint may gradually be damaged due to material aging, environmental erosion, and unexpected loads. However, due to the lack of effective monitoring means, these potential problems cannot be detected in time. Once the problem worsens, it will seriously threaten the safety of the building structure. For example, when a small crack appears in the joint, it may not have a significant impact on the structural performance at the initial stage. However, the crack will gradually expand, eventually leading to structural failure.

[0006] In summary, the existing fabricated wall cast-in-place joint connection technology has many deficiencies in connection stability, structural monitoring, and the use of through-wall bolts. Therefore, a new connection structure is urgently needed to solve these problems. INVENTION CONTENTS

[0007] The utility model discloses a kind of assembly type wall cast-in-place joint connecting structures, to solve the problems of insufficient stability of assembly type wall cast-in-place joint connecting, and unable to monitor the health condition of node structure in real time, improve the reliability and safety of node connection by the synergistic effect of multiple structures, and realize the real-time monitoring of node state.

[0008] In order to realize the utility model these purposes and other advantages, provide assembly type wall cast-in-place joint connecting structure, cast-in-place node is L type, connecting structure connects cast-in-place node with prefabricated wallboard one and prefabricated wallboard two, including:

[0009] Plate body one, it is L shape, and is set in internal corner, and with cast-in-place node, prefabricated wallboard one and prefabricated wallboard two are all attached, plate body one is composed of first plate body and second plate body, first plate body is attached with prefabricated wallboard one;

[0010] Internal corner back fillet, it is L shape, and is located at the inboard of plate body one, internal corner back fillet is composed of first section back fillet and second section back fillet, first section back fillet and second section back fillet are respectively opposite with first plate body and second plate body, and are flat;

[0011] Multiple square steels one, first section back fillet and first plate body, and second section back fillet and second plate body are all interval set with multiple square steels one;

[0012] Plate body two, it is L shape, and is set in external corner, and with cast-in-place node, prefabricated wallboard one and prefabricated wallboard two are all attached, plate body two is composed of third plate body and fourth plate body, third plate body is attached with prefabricated wallboard one;

[0013] External corner back fillet, it is L shape, and is located at the outboard of plate body two, external corner back fillet is composed of third section back fillet and fourth section back fillet, third section back fillet and fourth section back fillet are respectively opposite with third plate body and fourth plate body, and are flat;

[0014] Multiple square steels two, third section back fillet and third plate body, and fourth section back fillet and fourth plate body are all interval set with multiple square steels two;

[0015] Multiple through-wall bolts, at least one through-wall bolt is vertically passed through third section back fillet, third plate body, prefabricated wallboard one, first plate body and first section back fillet, and is fixed through nut after passing;At least one through-wall bolt is vertically passed through fourth section back fillet, fourth plate body, prefabricated wallboard two, second plate body and second section back fillet, and is fixed through nut after passing;

[0016] Cast-in-place node and prefabricated wallboard one and prefabricated wallboard two are connected through mortise and tenon nesting reinforcing structure, a plurality of small tenon are provided on tenon, small mortise eye corresponding to each small tenon is provided on cast-in-place node or prefabricated wallboard one or prefabricated wallboard two, a plurality of optical fiber sensors are embedded on tenon and small tenon.

[0017] Preferably, the assembly type wall cast-in-place joint connecting structure, at least one wall penetrating bolt vertically through the third back web, the third plate body, the cast-in-place joint, the first plate body and the first back web, and is fixed by a nut; at least one wall penetrating bolt vertically through the fourth back web, the fourth plate body, the cast-in-place joint, the second plate body and the second back web, and is fixed by a nut.

[0018] Preferably, the assembly type wall cast-in-place joint connecting structure, the sponge strip is pasted between the first plate body and the first and second prefabricated wallboards, and the sponge strip is pasted between the second plate body and the first and second prefabricated wallboards, and each wall penetrating bolt does not pass through the sponge strip.

[0019] Preferably, the assembly type wall cast-in-place joint connecting structure, the sponge strip corresponding to the first prefabricated wallboard is close to the connection between the first prefabricated wallboard and the cast-in-place joint, and the sponge strip corresponding to the second prefabricated wallboard is close to the connection between the second prefabricated wallboard and the cast-in-place joint.

[0020] Preferably, the assembly type wall cast-in-place joint connecting structure, the female corner back web comprises:

[0021] The first and second main keels are perpendicular to each other and are parallel to the first and second prefabricated wallboards, respectively, and one end of the first main keel is close to one end of the second main keel.

[0022] The first and second main keels are perpendicular to each other and are parallel to the first and second prefabricated wallboards, respectively, and one end of the first main keel is close to one end of the second main keel.

[0023] The male corner back web comprises:

[0024] The third and fourth main keels are perpendicular to each other and are parallel to the first and second prefabricated wallboards, respectively, and one end of the third main keel extends to the outside of one end of the fourth main keel.

[0025] The second connecting piece is L-shaped and has a T-shaped cross section, and the second connecting piece comprises a third connecting piece and a fourth connecting piece, and one end of the third main keel and one end of the fourth main keel are respectively clamped into the third connecting piece and the fourth connecting piece; at least one positioning pin is arranged on the third connecting piece and the fourth connecting piece, and the positioning pin corresponding to the third connecting piece is vertically arranged on one end of the third main keel and the third connecting piece, and the positioning pin corresponding to the fourth connecting piece is vertically arranged on one end of the fourth main keel and the fourth connecting piece;

[0026] The first main keel, the second main keel, the third main keel and the fourth main keel are all composed of an upper sheet body, a lower sheet body and a plurality of connecting rods, the upper sheet body and the lower sheet body are both long strips and are arranged oppositely, the plurality of connecting rods are arranged at intervals along the length direction of the upper sheet body and the lower sheet body, and the top and the bottom of each connecting rod are fixedly connected with the upper sheet body and the lower sheet body respectively, and one end of the upper sheet body is provided with one connecting rod;

[0027] At least one wall screw is vertically arranged through the part between the upper sheet body and the lower sheet body of the third main keel, the third plate body, the prefabricated wallboard I, the first plate body, the part between the upper sheet body and the lower sheet body of the first main keel, the cross-shaped gasket and then fixed by a nut;

[0028] At least one wall screw is vertically arranged through the part between the upper sheet body and the lower sheet body of the third main keel, the third plate body, the cast-in-place joint, the first plate body, the part between the upper sheet body and the lower sheet body of the first main keel, the cross-shaped gasket and then fixed by a nut;

[0029] At least one wall screw is vertically arranged through the part between the upper sheet body and the lower sheet body of the fourth main keel, the fourth plate body, the cast-in-place joint, the second plate body, the part between the upper sheet body and the lower sheet body of the second main keel, the cross-shaped gasket and then fixed by a nut;

[0030] At least one wall screw is vertically arranged through the part between the upper sheet body and the lower sheet body of the fourth main keel, the fourth plate body, the prefabricated wallboard II, the second plate body, the part between the upper sheet body and the lower sheet body of the second main keel, the cross-shaped gasket and then fixed by a nut;

[0031] Each positioning pin is an inverted right-angle trapezoid, the through holes for the positioning pins on the first main keel, the second main keel, the third main keel, the fourth main keel, the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece are all long strips and extend along the length direction of the main body;

[0032] The external corner back bead further comprises:

[0033] The hook bolt is hooked on the connecting rod of the fourth main keel at one end, and is fixed by a nut at the other end after passing through the part between the upper and lower pieces of the third main keel, a cross-shaped gasket and the third main keel.

[0034] Preferably, the assembly type wall cast-in-place joint connecting structure comprises at least one wall penetrating bolt vertically penetrating the part between the upper and lower pieces of the third main keel, the third plate body, the cast-in-place joint, the first plate body, the part between the upper and lower pieces of the first main keel, the first connecting piece, the cross-shaped gasket and being fixed by a nut.

[0035] At least one wall penetrating bolt vertically penetrates the part between the upper and lower pieces of the fourth main keel, the fourth plate body, the cast-in-place joint, the second plate body, the part between the upper and lower pieces of the second main keel, the second connecting piece, the cross-shaped gasket and is fixed by a nut.

[0036] The through holes for the wall penetrating bolts on the first connecting piece and the second connecting piece are long strips and extend along the length direction of the main bodies.

[0037] Preferably, the assembly type wall cast-in-place joint connecting structure comprises a tenon surface coated with an elastic material.

[0038] Preferably, the assembly type wall cast-in-place joint connecting structure comprises a tenon surface coated with an elastic material.

[0039] The utility model at least includes following beneficial effects:

[0040] The utility model combines the L-shaped plate body one and plate body two, the female corner back fillet, the male corner back fillet and the square steel, constructs the stable support and the restraint system. The parts work cooperatively, effectively disperses and transmits the stress at the node, promotes the connection stability. The optimized wall penetrating bolt connection mode is closely connected with the prefabricated wallboard, the plate body and the back fillet and other components, enhances the node bearing capacity and the deformation resistance. The mortise and tenon nesting reinforced structure is closely matched with multiple small tenon heads and small mortise eyes, increases the connection friction and the bite force, prevents the wall body from cracking and structural instability. If the plate body arranged at the female corner and the male corner is matched with the back fillet and the square steel, when the wall body is subjected to external force, the plate body bears and disperses the stress together, ensures the node stability.

[0041] The new type of joint is embedded with multiple optical fiber sensors on the tenon and the small tenon head, can monitor the stress and deformation of the joint in real time and accurately, and intuitively reflects the health condition of the joint. Once the joint appears abnormal, potential problems can be found in time, and basis for taking corresponding measures is provided, so that long-term safe and stable operation of the building structure is ensured, and maintenance cost and safety risk caused by structural hidden dangers are reduced. For example, when the joint is subjected to external forces such as earthquake force and wind force, the tenon and the small tenon head first produce stress and strain, and the optical fiber sensor can perceive and feedback in the first time, so that timely processing can be carried out.

[0042] The structures of the utility model are mutually matched and cooperated, the dependence on a large number of wall bolts is reduced, and material procurement cost is reduced. The optimized connecting structure reduces the rework frequency, reduces construction manpower and material resources waste, and controls construction cost. The parts are prefabricated in a factory and assembled on site, so that on-site processing workload and time are reduced, and construction efficiency is improved. The main joist, connecting piece and positioning pin in the female corner back fillet and the male corner back fillet are matched with each other, convenient installation is achieved, and structural stability is enhanced. The sponge strip is arranged at the connecting position of the prefabricated wallboard and the cast-in-place joint, plays a sealing and buffering role, and guarantees pouring quality and joint durability.

[0043] Other advantages, objects and features of the utility model will be embodied in part through the following description, and will be understood by those skilled in the art through research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 It is a structure schematic view of a cast-in-place joint connecting structure of an assembled wall according to one embodiment of the utility model;

[0045] Figure 2 It is a structure schematic view of a connecting piece one according to one embodiment of the utility model;

[0046] Figure 3 It is a structure schematic view when a connecting piece one is used to connect a first main joist and a second main joist, and a connecting piece two is used to connect a third main joist and a fourth main joist according to one embodiment of the utility model;

[0047] Figure 4 It is a front view of a first main joist according to one embodiment of the utility model;

[0048] Figure 5 It is a top view of a first main joist according to one embodiment of the utility model;

[0049] Wherein, the reference signs are as follows: cast-in-place joint-1; prefabricated wallboard one-2; prefabricated wallboard two-3; plate body one-4; internal corner back fillet-5; square steel one-6; plate body two-7; external corner back fillet-8; multiple square steels two-9; wall penetrating bolt-10; sponge strip-11; first main keel-12; upper layer sheet-121; lower layer sheet-122; connecting rod-123; second main keel-13; connecting piece one-14; third main keel-15; fourth main keel-16; connecting piece two-17; hook bolt-18. DETAILED DESCRIPTION

[0050] The utility model makes further detailed description in combination with the drawings, so that the person skilled in the art can implement according to the description of the specification.

[0051] It should be noted that in the description of the utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0052] As Figure 1 The utility model provides cast wall cast-in-place joint 1 connecting structure, cast-in-place joint 1 is L type, and connecting structure connects cast-in-place joint 1 with prefabricated wallboard one 2 and prefabricated wallboard two 3, forms whole, including:

[0053] Plate body one 4 is L shape, and is set at internal corner, and is inlaid with cast-in-place joint 1, prefabricated wallboard one 2 and prefabricated wallboard two 3, and plate body one 4 is composed of first plate body and second plate body, and first plate body is inlaid with prefabricated wallboard one 2;

[0054] Internal corner back fillet 5 is L shape, and is located at the inner side of plate body one 4, and internal corner back fillet 5 is composed of first section back fillet and second section back fillet, and first section back fillet and second section back fillet are opposite to first plate body and second plate body respectively and are flat;

[0055] Multiple square steels one 6 are arranged between first section back fillet and first plate body and between second section back fillet and second plate body;

[0056] Plate body two 7 is L shape, and is set at external corner, and is inlaid with cast-in-place joint 1, prefabricated wallboard one 2 and prefabricated wallboard two 3, and plate body two 7 is composed of third plate body and fourth plate body, and third plate body is inlaid with prefabricated wallboard one 2;

[0057] The male corner back rabbet 8 is L-shaped and located on the outer side of the second plate body 7. The male corner back rabbet 8 is composed of a third segment back rabbet and a fourth segment back rabbet. The third segment back rabbet and the fourth segment back rabbet are respectively opposite to the third plate body and the fourth plate body and are flat-shaped;

[0058] A plurality of square steels 9 are arranged between the third segment back rabbet and the third plate body and between the fourth segment back rabbet and the fourth plate body.

[0059] A plurality of wall bolts 10 are arranged. At least one wall bolt 10 vertically penetrates the third segment back rabbet, the third plate body, the first prefabricated wall plate 2, the first plate body, and the first segment back rabbet and is fixed by a nut. At least one wall bolt 10 vertically penetrates the fourth segment back rabbet, the fourth plate body, the second prefabricated wall plate 3, the second plate body, and the second segment back rabbet and is fixed by a nut.

[0060] The cast-in-place joint 1, the first prefabricated wall plate 2, and the second prefabricated wall plate 3 are connected by a mortise and tenon nesting reinforcement structure. A plurality of small tenon heads are arranged on the tenon. Small mortise eyes corresponding to each small tenon head are arranged on the cast-in-place joint 1, the first prefabricated wall plate 2, or the second prefabricated wall plate 3. A plurality of optical fiber sensors are embedded on the tenon and the small tenon head. For example, the tenon and the small tenon head are arranged on one of the cast-in-place joint 1 and the first prefabricated wall plate 2, and the mortise eye and the small mortise eye are arranged on the other. The tenon and the small tenon head are arranged on one of the cast-in-place joint 1 and the second prefabricated wall plate 3, and the mortise eye and the small mortise eye are arranged on the other.

[0061] The tenon and the small tenon head are the key force transmission components of the mortise and tenon nesting reinforcement structure and directly bear and transmit various stresses at the joint. When the joint is subjected to external forces such as earthquake force and wind force, the tenon and the small tenon head will first generate stress and strain. Embedding optical fiber sensors on them can accurately perceive these mechanical changes in the first time, thereby reflecting the stress state of the joint in real time. If installed in other non-critical parts, it may not be able to timely and accurately capture the stress changes in the core area of the joint, leading to misjudgment of the health status of the joint. The reliability of the cast-in-place joint 1 of the fabricated wall depends largely on the stability of the mortise and tenon connection. The position of the tenon and the small tenon head is the core area of the connection, and the optical fiber sensors are installed here to monitor the state of the key area of the connection in real time. For example, when there are problems such as loose connection and deformation, the optical fiber sensors can quickly perceive and feedback, providing a basis for timely reinforcement measures. If installed in other places far from the core of the connection, it is difficult to effectively monitor the health status of the mortise and tenon connection and to discover potential risks in a timely manner.

[0062] Construction method of the connection structure of the fabricated wall cast-in-place joint 1:

[0063] Preparation: Strictly according to the design drawings, carefully prepare the size accurate, quality qualified plate body 4, plate body 2, 7, the female corner back rafter 5, the male corner back rafter 8, square steel 6, square steel 9, wall bolt 10, with small tenon tenon and other materials and parts. At the same time, prepare temporary support, measuring tools (such as level, plumb line, tape measure, etc.), drilling equipment and installation required wrench, torque wrench and other tools. Check all materials and tools to ensure their good performance and meet the construction requirements.

[0064] Connect prefabricated wallboard with cast-in-place node 1: the tenon with small tenon and the corresponding small mortise on the cast-in-place node 1 or prefabricated wallboard 2, prefabricated wallboard 3 are nested and connected. Before connection, carefully check the size and surface flatness of small tenon and small mortise to ensure good matching. When connecting, slowly insert the tenon into the mortise, make sure the small tenon is fully embedded, and make sure there is no looseness or gap during the process. If there is any obstruction, adjust the position or clean the debris in time. Gently knock the tenon to make it firmly embedded in the mortise to complete the installation of the mortise and tenon nesting reinforcement structure. After installation, check the connection part to ensure tight and firm connection.

[0065] Install plate body 4: place plate body 4 at the female corner, make it tightly fit with the cast-in-place node 1, prefabricated wallboard 2 and prefabricated wallboard 3. During the fitting process, use level and plumb line and other measuring tools to check the contact between plate body 4 and each part to ensure no gap and no misalignment, and the position of plate body 4 meets the design requirements. Use temporary support to fix plate body 4, the position of temporary support should be reasonably distributed, and the support points should be firm and reliable to ensure that plate body 4 remains stable during subsequent construction and does not shift or sway.

[0066] Install plate body 2: place plate body 2 at the male corner, make it tightly fit with the cast-in-place node 1, prefabricated wallboard 2 and prefabricated wallboard 3. Pay special attention to adjusting the position of plate body 2, use measuring tools to ensure that the third plate body fits accurately with prefabricated wallboard 2, and the overall position of plate body 2 meets the design standard. After adjustment, use temporary support to fix plate body 2, and also ensure the stability of temporary support and the rationality of support points to ensure that plate body 2 remains stable during subsequent construction.

[0067] Install wall bolt 10: use drilling equipment to drill at the corresponding position, strictly control the perpendicularity and depth of drilling to ensure that the wall bolt 10 can pass through smoothly. Insert the wall bolt 10 vertically through the third back rafter reserved hole, the third plate body, the prefabricated wallboard 2, the first plate body and the first back rafter reserved hole in turn. Similarly, insert the wall bolt 10 vertically through the fourth back rafter reserved hole, the fourth plate body, the prefabricated wallboard 3, the second plate body and the second back rafter reserved hole in turn.

[0068] Install square steel one 6: according to the design spacing requirements, install multiple square steel one 6 between the first section of back bead and the first plate body, and between the second section of back bead and the second plate body. During installation, use measuring tools to ensure the levelness and perpendicularity of the square steel one 6, and ensure that it is coordinated with the position of the wall screw 10 and does not hinder the installation of the subsequent internal corner back bead 5 and external corner back bead 8.

[0069] Install internal corner back bead 5: place the first section of back bead and the second section of back bead on the inner side of the first plate body and the second plate body respectively, align the hole positions on the first section of back bead and the second section of back bead with the installed wall screw 10, adjust the position of the first section of back bead and the second section of back bead to be parallel to the first plate body and the second plate body respectively, and use the matching nut and washer to tightly connect the first section of back bead and the second section of back bead with the wall screw 10, ensuring that the internal corner back bead 5 is installed firmly and accurately positioned.

[0070] Install square steel two 9: according to the design requirements, install multiple square steel two 9 between the third section of back bead and the third plate body, and between the fourth section of back bead and the fourth plate body. During installation, use measuring tools to ensure the levelness, perpendicularity and relative position accuracy of the square steel two 9 with the wall screw 10, and ensure that the square steel two 9 is installed stably.

[0071] Install external corner back bead 8: place the third section of back bead and the fourth section of back bead on the outer side of the third plate body and the fourth plate body respectively, align the hole positions on the third section of back bead and the fourth section of back bead with the installed wall screw 10, and adjust the third section of back bead and the fourth section of back bead to be parallel to the third plate body and the fourth plate body respectively, and use the nut and washer to tightly connect the external corner back bead 8 with the wall screw 10, ensuring that the external corner back bead 8 is installed firmly and positioned according to the design requirements.

[0072] Beneficial effects:

[0073] Through the unique combination design of L-shaped plate body, internal corner back bead 5, external corner back bead 8 and square steel, a stable support and constraint system is constructed. Each component works cooperatively to effectively disperse and transfer stress at the node, greatly improving the stability of the connection. In combination with the optimized connection method of the wall screw 10, the prefabricated wall panel, plate body and back bead are closely connected to form a whole, significantly enhancing the bearing capacity and anti-deformation capacity of the node. The mortise and tenon nesting reinforced structure increases the friction and engagement force of the connection by the close cooperation of multiple small tenons and small mortises, further improving the node's resistance to deformation, ensuring reliable connection under various complex loads, and effectively preventing wall cracking and structural instability.

[0074] The multiple optical fiber sensors embedded on the tenon and the small tenon head can monitor the stress and deformation of the tenon and the small tenon head in real time and accurately, and then intuitively reflect the health status of the node. Once the node is abnormal, potential problems can be detected in time, and strong basis is provided for taking corresponding measures, so as to ensure the long-term safe and stable operation of the building structure, reduce the maintenance cost and safety risk caused by structural hidden dangers.

[0075] By reasonably designing the cooperative work of each component, the dependence on a large number of wall bolts 10 is reduced, the use amount of the wall bolts 10 is reduced, and thus the material procurement cost is reduced. The optimized connection structure reduces the rework frequency caused by unstable connection, reduces the waste of manpower and material resources in the construction process, and effectively controls the construction cost.

[0076] Each component is pre-fabricated in a factory and assembled on site, reducing the workload and time of on-site processing.

[0077] In another scheme, at least one wall bolt 10 vertically penetrates through the third back bar, the third plate body, the cast-in-place node 1, the first plate body and the first back bar, and is fixed by a nut; at least one wall bolt 10 vertically penetrates through the fourth back bar, the fourth plate body, the cast-in-place node 1, the second plate body and the second back bar, and is fixed by a nut.

[0078] This connection mode makes the wall bolt 10 directly penetrate through the cast-in-place node 1, tightly connects the cast-in-place node 1, the prefabricated wall plate one 2, the prefabricated wall plate two 3, the plate body one 4, the plate body two 7, the female corner back bar 5 and the male corner back bar 8 components together to form a whole, and greatly improves the bearing capacity and deformation resistance of the node. When bearing horizontal and vertical loads, the components work cooperatively, effectively disperse stress, reduce the risk of node loosening and deformation, and improve the reliability of the cast-in-place node 1 connection of the fabricated wall.

[0079] In another scheme, in the connection structure of the cast-in-place node 1 of the fabricated wall, sponge strips 11 are pasted between the plate body one 4 and the prefabricated wall plate one 2 and the prefabricated wall plate two 3, and between the plate body two 7 and the prefabricated wall plate one 2 and the prefabricated wall plate two 3, and each wall bolt 10 does not penetrate through the sponge strip 11.

[0080] The sponge strip 11 plays a good sealing role, effectively prevents the leakage problem in the concrete pouring process, and ensures the pouring quality of the node. At the same time, the sponge strip 11 also has a certain elasticity, which can buffer the slight deformation between the components, reduce the damage caused by friction and collision, and improve the durability and stability of the node.

[0081] In another scheme, the cast-in-place joint 1 connection structure, the sponge strip 11 corresponding to the prefabricated wallboard 2 is close to the connection between the prefabricated wallboard 2 and the cast-in-place joint 1, and the sponge strip 11 corresponding to the prefabricated wallboard 3 is close to the connection between the prefabricated wallboard 3 and the cast-in-place joint 1.

[0082] The sponge strip 11 is arranged near the connection between the prefabricated wallboard 2 and the cast-in-place joint 1, and the connection between the prefabricated wallboard 3 and the cast-in-place joint 1, which can most effectively prevent concrete from seeping out of the gap, ensuring the sealing and integrity of the connection part. This precise positioning improves the efficiency of the sponge strip 11, reduces material waste, and also ensures the construction quality and structural performance of the joint.

[0083] In another scheme, the cast-in-place joint 1 connection structure, as shown in Figures 2-5 The female corner back fillet 5 comprises:

[0084] The first main keel 12 and the second main keel 13 are perpendicular to each other and are respectively parallel to the prefabricated wallboard 2 and the prefabricated wallboard 3, and one end of the first main keel 12 is close to one end of the second main keel 13;

[0085] The connecting piece 1 14 is L-shaped and its cross section is L-shaped, and the open side of the connecting piece 1 14 faces the cast-in-place joint 1, the connecting piece 1 14 comprises a first connecting piece and a second connecting piece, and one end of the first main keel 12 and one end of the second main keel 13 are respectively clamped into the first connecting piece and the second connecting piece; at least one positioning pin is arranged on the first connecting piece and the second connecting piece, the positioning pin corresponding to the first connecting piece is vertically arranged on one end of the first main keel 12 and the first connecting piece, and the positioning pin corresponding to the second connecting piece is vertically arranged on one end of the second main keel 13 and the second connecting piece;

[0086] The female corner back fillet 5 comprises:

[0087] The third main keel 15 and the fourth main keel 16 are perpendicular to each other and are respectively parallel to the prefabricated wallboard 2 and the prefabricated wallboard 3, and one end of the third main keel 15 extends to the outside of one end of the fourth main keel 16;

[0088] The connecting piece 2 17 is L-shaped and its cross section is L-shaped, and the connecting piece 2 17 comprises a third connecting piece and a fourth connecting piece, and one end of the third main keel 15 and one end of the fourth main keel 16 are respectively clamped into the third connecting piece and the fourth connecting piece; at least one positioning pin is arranged on the third connecting piece and the fourth connecting piece, the positioning pin corresponding to the third connecting piece is vertically arranged on one end of the third main keel 15 and the third connecting piece, and the positioning pin corresponding to the fourth connecting piece is vertically arranged on one end of the fourth main keel 16 and the fourth connecting piece;

[0089] Wherein, as shown in Figure 4 The first main keel 12, the second main keel 13, the third main keel 15 and the fourth main keel 16 are all composed of an upper sheet body 121, a lower sheet body 122 and a plurality of connecting rods 123, the upper sheet body 121 and the lower sheet body 122 are both long strips and oppositely arranged, the plurality of connecting rods 123 are arranged along the length direction of the upper sheet body 121 and the lower sheet body 122, and the top and bottom of each connecting rod 123 are fixedly connected with the upper sheet body 121 and the lower sheet body 122 respectively, and one connecting rod 123 is arranged at each end of the upper sheet body 121;

[0090] At least one through-wall bolt 10 vertically passes through the part between the upper sheet body 121 and the lower sheet body 122 of the third main keel 15, the third sheet body, the prefabricated wallboard 2, the first sheet body, the part between the upper sheet body 121 and the lower sheet body 122 of the first main keel 12, the cross-shaped gasket and is fixed by a nut after the cross-shaped gasket;

[0091] At least one through-wall bolt 10 vertically passes through the part between the upper sheet body 121 and the lower sheet body 122 of the third main keel 15, the third sheet body, the cast-in-place joint 1, the first sheet body, the part between the upper sheet body 121 and the lower sheet body 122 of the first main keel 12, the cross-shaped gasket and is fixed by a nut after the cross-shaped gasket;

[0092] At least one through-wall bolt 10 vertically passes through the part between the upper sheet body 121 and the lower sheet body 122 of the fourth main keel 16, the fourth sheet body, the cast-in-place joint 1, the second sheet body, the part between the upper sheet body 121 and the lower sheet body 122 of the second main keel 13, the cross-shaped gasket and is fixed by a nut after the cross-shaped gasket;

[0093] At least one through-wall bolt 10 vertically passes through the part between the upper sheet body 121 and the lower sheet body 122 of the fourth main keel 16, the fourth sheet body, the prefabricated wallboard 3, the second sheet body, the part between the upper sheet body 121 and the lower sheet body 122 of the second main keel 13, the cross-shaped gasket and is fixed by a nut after the cross-shaped gasket;

[0094] Each positioning pin is an inverted right-angle trapezoid, the through holes on the first main keel 12, the second main keel 13, the third main keel 15, the fourth main keel 16, the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece for the positioning pins to pass through are all long strips and respectively extend along the length direction of the main body where the through holes are located;

[0095] The external corner back fillet 8 further comprises:

[0096] Hook bolt 18, one end of which is hooked on the connecting rod 123 on the fourth main keel 16 closest to one end of the third main keel 15, and the other end is fixed through a cross-shaped gasket and a nut in sequence. As shown in Figure 3 When the third keel and the fourth main keel are perpendicular, the part between the upper lamella 121 and the lower lamella 122 of the third main keel 15 is opposite to the connecting rod 123 on the fourth main keel 16 closest to one end of the third main keel 15, so that the hook of the right end of the hook bolt 18 hooks the connecting rod 123 on the fourth main keel closest to one end of the third main keel 15, and the left end of the hook bolt 18 is fixed through a cross-shaped gasket and a nut in sequence.

[0097] In actual use, the connecting piece one 14 and the connecting piece two 17 are the same in structure, collectively referred to as connecting pieces, and the first main keel 12, the second main keel 13, the third main keel 15 and the fourth main keel 16 are the same in structure, collectively referred to as main keels, which can be made into different lengths and used as needed.

[0098] The first main keel 12, the second main keel 13, the third main keel 15 and the fourth main keel 16 are fixed by the wall penetrating bolt 10 respectively. One end of the first main keel 12 is close to one end of the second main keel 13, and one end of the third main keel 15 extends to the outside of one end of the fourth main keel 16, so that the connecting piece one 14 and the connecting piece two 17 can be the same in structure, and the connecting piece can be a modular connecting piece.

[0099] The open surface of the connecting piece one 14 faces the cast-in-place joint 1. One end of the first main keel 12 and one end of the second main keel 13 are correspondingly clamped into the first connecting piece and the second connecting piece. On the first connecting piece, the positioning pin is vertically inserted through the long strip-shaped through hole on the first connecting piece and the long strip-shaped through hole at one end of the first main keel 12, and is lightly knocked into the positioning pin for preliminary fixation; similarly, on the second connecting piece, the positioning pin is vertically inserted through the long strip-shaped through hole on the second connecting piece and the long strip-shaped through hole at one end of the second main keel 13, and the preliminary fixation is completed.

[0100] The end of the hook bolt 18 is firmly hooked on the connecting rod 123 of the fourth main keel 16 closest to the end of the third main keel 15, the other end is sequentially threaded through the part between the upper sheet body 121 and the lower sheet body 122 of the third main keel 15, and after adding a cross-shaped gasket, the nut is tightened according to the specified torque using a torque wrench, and the fixing of the hook bolt 18 is completed. The hook bolt 18 plays a crucial role in strengthening the entire structure, further fastening the most critical connection between the third main keel 15 and the fourth main keel 16, effectively preventing relative displacement or deformation between the third main keel 15 and the fourth main keel 16 under complex stress conditions, especially under horizontal tension, pressure or torsion, enhancing the overall stability of the external corner back fillet 8, and further ensuring the reliability of the node under various complex load conditions, and ensuring the stability of the entire fabricated wall cast-in-place node 1 connection structure.

[0101] The open face of the connecting piece two 17 is placed in the designed direction. One end of the third main keel 15 and the fourth main keel 16 is respectively inserted into the third connecting piece and the fourth connecting piece. On the third connecting piece, the positioning pin is vertically threaded through the long slot on the third connecting piece and the long slot on one end of the third main keel 15, and is gently knocked into the positioning pin for preliminary fixation; on the fourth connecting piece, the positioning pin is vertically threaded through the long slot on the fourth connecting piece and the long slot on one end of the fourth main keel 16, and the preliminary fixation is completed.

[0102] In another scheme, at least one wall penetrating bolt 10 vertically penetrates the part between the upper sheet body 121 and the lower sheet body 122 of the third main keel 15, the third plate body, the cast-in-place node 1, the first plate body, the part between the upper sheet body 121 and the lower sheet body 122 of the first main keel 12, the first connecting piece, the cross-shaped gasket, and is fixed by a nut;

[0103] At least one wall penetrating bolt 10 vertically penetrates the part between the upper sheet body 121 and the lower sheet body 122 of the fourth main keel 16, the fourth plate body, the cast-in-place node 1, the second plate body, the part between the upper sheet body 121 and the lower sheet body 122 of the second main keel 13, the second connecting piece, the cross-shaped gasket, and is fixed by a nut;

[0104] The through holes on the first connecting piece and the second connecting piece for the wall penetrating bolt 10 are long slots, and extend along the length direction of the main body respectively.

[0105] The wall penetrating bolt 10 penetrates the third main keel 15, the third plate body, the cast-in-place joint 1, the first plate body, the first main keel 12 and the first section connector in sequence, and is fixed through the cross-shaped gasket and the nut, thereby forming a connecting path penetrating through multiple key components, and enabling the components to be tightly connected as a whole. Similarly, the wall penetrating bolt 10 connects the fourth main keel 16, the fourth plate body, the cast-in-place joint 1, the second plate body, the second main keel 13 and the second section connector, and greatly enhances the integrity and stability of the joint. When subjected to external force, the components can bear force in coordination, effectively disperse stress, avoid structure damage caused by local stress concentration, and improve the bearing capacity and reliability of the fabricated wall cast-in-place joint 1 under various complex load conditions.

[0106] In another scheme, the tenon surface of the fabricated wall cast-in-place joint 1 connection structure is coated with elastic material.

[0107] The elastic material coated on the tenon surface can not only buffer the impact force between the mortise and the hole, reduce wear and damage, and prolong the service life of the mortise and tenon connection, but also can play a sealing role to prevent dust, moisture and other impurities from entering the connection, thereby ensuring the stability and reliability of the connection.

[0108] In another scheme, the upper part of the tenon and the small tenon is larger in size than the lower part, that is, the upper part of the mortise and the small mortise is also larger in size.

[0109] During installation, the size design of the upper part being larger than the lower part facilitates the construction personnel to accurately insert the tenon and the small tenon into the mortise and the small mortise. The larger upper part can serve as a guide to make it easier for the construction personnel to align the position, reduce installation errors and improve installation efficiency. Meanwhile, the smaller lower part enters the larger mortise and the small mortise first during insertion, which also reduces the difficulty of insertion and makes the installation process smoother.

[0110] Although the embodiments of the present application have been disclosed as above, they are not limited to the application and implementation described in the specification and examples, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein.

Claims

1. An assembled wall cast-in-place joint connecting structure, the cast-in-place joint is L-shaped, the connecting structure connects the cast-in-place joint, a prefabricated wallboard and a second prefabricated wallboard, characterized in that, The utility model relates to a kind of reinforced concrete wall joint structure, including: Plate body one, which is L-shaped, is arranged at internal corner, and is attached to cast-in-place joint, prefabricated wallboard one and prefabricated wallboard two, plate body one is composed of first plate body and second plate body, first plate body is attached to prefabricated wallboard one; Internal corner back fillet, which is L-shaped, is located at the inner side of plate body one, internal corner back fillet is composed of first section back fillet and second section back fillet, first section back fillet and second section back fillet are respectively opposite to first plate body and second plate body, and are flat-shaped; Multiple square steels one are arranged between first section back fillet and first plate body, and between second section back fillet and second plate body; Plate body two, which is L-shaped, is arranged at external corner, and is attached to cast-in-place joint, prefabricated wallboard one and prefabricated wallboard two, plate body two is composed of third plate body and fourth plate body, third plate body is attached to prefabricated wallboard one; External corner back fillet, which is L-shaped, is located at the outer side of plate body two, external corner back fillet is composed of third section back fillet and fourth section back fillet, third section back fillet and fourth section back fillet are respectively opposite to third plate body and fourth plate body, and are flat-shaped; Multiple square steels two are arranged between third section back fillet and third plate body, and between fourth section back fillet and fourth plate body; Multiple through-wall bolts, at least one through-wall bolt vertically passes through third section back fillet, third plate body, prefabricated wallboard one, first plate body and first section back fillet, and is fixed by nut;At least one through-wall bolt vertically passes through fourth section back fillet, fourth plate body, prefabricated wallboard two, second plate body and second section back fillet, and is fixed by nut; Cast-in-place joint, prefabricated wallboard one and prefabricated wallboard two are connected by mortise and tenon nesting reinforcement structure, multiple small tenon heads are arranged on tenon, and small mortise eyes corresponding to each small tenon head are arranged on cast-in-place joint, prefabricated wallboard one or prefabricated wallboard two, and multiple optical fiber sensors are embedded on tenon and small tenon head.

2. The fabricated wall pour-and-fee joint connection of claim 1, wherein, At least one through-wall bolt vertically passes through third section back fillet, third plate body, cast-in-place joint, first plate body and first section back fillet, and is fixed by nut;At least one through-wall bolt vertically passes through fourth section back fillet, fourth plate body, cast-in-place joint, second plate body and second section back fillet, and is fixed by nut.

3. The fabricated wall pour-and-fee joint connection of claim 1, wherein, Plate body one, prefabricated wallboard one and prefabricated wallboard two, plate body two, prefabricated wallboard one and prefabricated wallboard two are pasted with sponge strip, and each through-wall bolt does not pass through sponge strip.

4. The fabricated wall pour-and-fee joint connection of claim 3, wherein, Sponge strip corresponding to prefabricated wallboard one is close to the connection between prefabricated wallboard one and cast-in-place joint, and sponge strip corresponding to prefabricated wallboard two is close to the connection between prefabricated wallboard two and cast-in-place joint.

5. The fabricated wall pour-and-fee joint connection of claim 1, wherein, Internal corner back fillet includes: First main keel and second main keel, which are perpendicular to each other, and are flat-shaped with prefabricated wallboard one and prefabricated wallboard two respectively, one end of first main keel is close to one end of second main keel. The first connecting piece is L-shaped and has a T-shaped cross section, and an open side of the first connecting piece faces the cast-in-place joint. The first connecting piece includes a first segment and a second segment. One end of the first main keel and one end of the second main keel are respectively clamped into the first segment and the second segment. At least one positioning pin is arranged on the first segment and the second segment. The positioning pin corresponding to the first segment is vertically arranged on one end of the first main keel and the first segment. The positioning pin corresponding to the second segment is vertically arranged on one end of the second main keel and the second segment. The male corner back fillet includes: The third main keel and the fourth main keel are perpendicular to each other and are parallel to the first prefabricated wall panel and the second prefabricated wall panel. One end of the third main keel extends to the outside of one end of the fourth main keel. The second connecting piece is L-shaped and has a T-shaped cross section. The second connecting piece includes a third segment and a fourth segment. One end of the third main keel and one end of the fourth main keel are respectively clamped into the third segment and the fourth segment. At least one positioning pin is arranged on the third segment and the fourth segment. The positioning pin corresponding to the third segment is vertically arranged on one end of the third main keel and the third segment. The positioning pin corresponding to the fourth segment is vertically arranged on one end of the fourth main keel and the fourth segment. The first main keel, the second main keel, the third main keel, and the fourth main keel are each composed of an upper sheet, a lower sheet, and a plurality of connecting rods. The upper sheet and the lower sheet are long strips arranged vertically. The plurality of connecting rods are arranged along the length of the upper sheet and the lower sheet. The top and bottom of each connecting rod are fixedly connected to the upper sheet and the lower sheet, respectively. The upper sheet has two ends, each of which is provided with a connecting rod. At least one wall-penetrating bolt vertically penetrates the part between the upper sheet and the lower sheet of the third main keel, the third panel, the first panel, the part between the upper sheet and the lower sheet of the first main keel, and is fixed by a nut after passing through the cross-shaped washer. At least one wall-penetrating bolt vertically penetrates the part between the upper sheet and the lower sheet of the third main keel, the third panel, the cast-in-place joint, the first panel, the part between the upper sheet and the lower sheet of the first main keel, and is fixed by a nut after passing through the cross-shaped washer. At least one wall-penetrating bolt vertically penetrates the part between the upper sheet and the lower sheet of the fourth main keel, the fourth panel, the cast-in-place joint, the second panel, the part between the upper sheet and the lower sheet of the second main keel, and is fixed by a nut after passing through the cross-shaped washer. At least one wall-penetrating bolt vertically penetrates the part between the upper sheet and the lower sheet of the fourth main keel, the fourth panel, the second panel, the part between the upper sheet and the lower sheet of the second main keel, and is fixed by a nut after passing through the cross-shaped washer. Each positioning pin is an inverted right-angle trapezoid. The through holes on the first main keel, the second main keel, the third main keel, the fourth main keel, the first segment, the second segment, the third segment, and the fourth segment for the positioning pins are long strips extending along the length of the main body. The male corner back fillet further includes: The hook bolt is hooked on the connecting rod of the fourth main keel at the end closest to the third main keel, and the other end is fixed through a nut after passing through the part between the upper and lower lamellas of the third main keel, a cross gasket and a nut.

6. The fabricated wall pour-and-fee joint connection of claim 5, wherein, At least one through-wall bolt vertically passes through the part between the upper and lower lamellas of the third main keel, the third plate body, the cast-in-place joint, the first plate body, the part between the upper and lower lamellas of the first main keel, the first connecting piece, a cross gasket and is fixed through a nut. At least one through-wall bolt vertically passes through the part between the upper and lower lamellas of the fourth main keel, the fourth plate body, the cast-in-place joint, the second plate body, the part between the upper and lower lamellas of the second main keel, the second connecting piece, a cross gasket and is fixed through a nut. The through holes for the through-wall bolts on the first connecting piece and the second connecting piece are long strips and respectively extend along the length direction of the main bodies.

7. The fabricated wall pour-and-fee joint connection of claim 1, wherein, The tenon surface is coated with elastic material.

8. The fabricated wall pour-and-fee joint connection of claim 1, wherein, The upper part of the tenon and the dowel is larger than the lower part. The upper part of the tenon and the dowel is larger than the lower part.

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