Anti-slip kit for thin eaves

Abstract

This invention discloses an anti-slip kit for thin kiln eaves, relating to the field of traditional kiln building protection and structural reinforcement. It includes beam-end anchors, eave-end anchors, and adjustable connectors. The beam-end anchors are fixed to the ends of stone cantilever beams and are steel plates fitted to the end faces of the stone cantilever beams, with through holes for chemical anchors to pass through. This anti-slip kit for thin kiln eaves, by securing the eave-end anchors at the joints of adjacent thin kiln eaves, forms a three-sided fixation with the bottom, top, and end surfaces of the eaves, eliminating the need for holes in the eaves themselves. The sliding force is transmitted via the adjustable connectors to the beam-end anchors fixed to the ends of the stone cantilever beams, thereby limiting the outward and downward sliding of the thin kiln eaves along the drainage slope.

Description

Technical Field

[0001] This invention relates to traditional cave dwelling building protection and structural reinforcement technology, specifically to an anti-slip kit for thin cave eaves. Background Technology

[0002] Traditional cave dwellings are a type of earthen architecture with distinctive regional characteristics in the Loess Plateau region of my country, as shown in the attached image. Figure 1 As shown, it consists of a flower wall 1, a thin kiln eave 2, kiln eave capping stones 3, and stone cantilever beams 4. The stone cantilever beams 4 project outwards from the kiln face, serving as the main load-bearing component supporting the upper eaves. Above the stone cantilever beams 4 is the thin kiln eave 2, typically made of materials such as bluestone slabs, thin stone slabs, or precast concrete slabs, with a thickness usually only 30mm to 80mm and an outward projection length between 200mm and 600mm. The thin kiln eaves 2 are covered by kiln eave capping stones 3, used to cover the eaves and provide a finishing edge. A flower wall 1 is often installed above the kiln face, serving both decorative and protective functions. To meet drainage requirements, the thin kiln eaves 2 are usually constructed with an outward and downward drainage slope, typically between 3% and 8%.

[0003] During long-term service, thin kiln eaves are prone to slow slippage along the drainage slope due to the combined effects of various adverse factors. Specifically, rainwater seeps down the top surface of the eaves, eroding the mortar bonding layer between the eaves and the stone beams, causing the bonding strength to decrease year by year. At the same time, the large diurnal temperature difference in the area where the kiln is located, and the difference in the thermal expansion coefficients of the stone slabs and mortar, cause repeated temperature stress to create micro-cracks at the bonding interface, which gradually expand. In addition, minor settlement of the soil above the kiln, vibrations caused by wind loads, and accidental collision loads all exacerbate the slippage tendency of the eaves. Once the slippage of the eaves exceeds the safety limit, it can result in obvious misalignment and widening of the joints, affecting the architectural appearance and waterproofing performance. In severe cases, it can lead to the entire eaves falling off, posing a serious safety threat to people below and the building itself.

[0004] To address the slippage problem of thin kiln eaves, the known reinforcement methods mainly include the following categories:

[0005] Mechanical anchoring method: Through-hole anti-reverse pins are drilled into the thin kiln eaves, and expansion bolts, chemical anchors, or through-hole pins are inserted to connect the kiln eaves to the underlying stone beams or walls. Although this method is convenient to construct, the thinness and brittleness of the kiln eaves (especially bluestone slabs) during drilling easily cause cracks along the grain of the eaves due to impact and vibration, resulting in a very low yield. Even if drilling is successful, stress concentration will occur around the pin holes under long-term loads, further inducing crack propagation and accelerating the deterioration and damage of the kiln eaves.

[0006] Surface reinforcement method: A metal mesh or fiber mesh is laid on the upper surface of the kiln eaves, and then polymer cement mortar is sprayed or applied to form a composite layer. This method integrates the kiln eaves and the reinforcement layer into one, which can improve the overall integrity of the kiln eaves. However, the newly added mortar layer significantly increases the self-weight of the kiln eaves, increasing the load on the stone beams below. At the same time, the wet work is extensive, the curing period is long, and the construction is highly dependent on weather conditions. Furthermore, the reinforcement layer completely covers the original surface of the kiln eaves, changing the architectural appearance and historical features of traditional cave dwellings, making it unsuitable for the protection and restoration of cultural relics buildings and traditional villages.

[0007] External clamping method: This method uses upper and lower clamps or metal clips to clamp and fix the kiln eaves from the top and bottom surfaces. The clamps are then anchored to the stone beams or walls via connectors. This type of solution typically requires multiple sets of clamps arranged continuously or at intervals along the length of the kiln eaves. The large number of components and exposed area significantly impact the visual appearance of the kiln facade. Furthermore, most existing clamping solutions use fixed-size designs, which cannot adapt to kiln eaves of different projection lengths and thicknesses, resulting in poor on-site adaptability. The clamping force acts directly on the surface of the kiln eaves; excessive clamping force can easily crush the brittle edges of the eaves, while insufficient clamping force cannot provide effective restraint.

[0008] Bonding grouting method: Injecting epoxy resin or cement-based grout into the gap between the kiln eaves and the stone cantilever beams in an attempt to restore or enhance the bond between the two. However, this method cannot solve the problem of irreversible slippage at the bonding interface, and the filling density of the grouting process in narrow gaps is difficult to guarantee; in addition, epoxy resin materials are at risk of aging and failure under ultraviolet radiation and outdoor temperature and humidity cycles, resulting in insufficient durability.

[0009] In summary, existing reinforcement methods either cause irreversible damage to the thin eaves themselves, excessively alter the architectural appearance, or fail to adapt to the diverse dimensions of the eaves. Therefore, a new type of anti-slip kit is urgently needed. Summary of the Invention

[0010] The purpose of this invention is to provide an anti-slip kit for thin kiln eaves to solve the problems of existing reinforcement solutions causing irreversible damage to the thin kiln eaves body, excessively altering the architectural appearance, and being unable to adapt to the diversity of kiln eaves sizes.

[0011] To achieve the above objectives, the present invention provides the following technical solution: an anti-slip kit for thin kiln eaves, wherein the anti-slip kit is disposed between the stone cantilever beam and the thin kiln eaves and is used to limit the slippage of the thin kiln eaves along the drainage slope direction, and the anti-slip kit has:

[0012] One beam end anchor is fixed to the end of the stone cantilever beam;

[0013] An anchor for the end of a kiln eaves is fitted at the joint of two adjacent thin kiln eaves and contacts the bottom, top and end surfaces of the thin kiln eaves to form a fixed structure.

[0014] At least one adjustable connector, one end of which is connected to the beam end anchor and the other end of which is connected to the kiln eave end anchor, to form a force transmission path for transmitting the sliding force of the thin kiln eave to the stone cantilever beam. The adjustable connector is a combined rod with an expansion joint.

[0015] Furthermore, the beam end anchor is a steel plate that fits against the end face of the stone cantilever beam, and has through holes for chemical anchors to pass through. The beam end anchor is fixed to the end of the stone cantilever beam by chemical anchors, wherein there are at least four sets of chemical anchors distributed in the four corner areas of the beam end anchor.

[0016] Furthermore, the anchor at the end of the kiln eaves is a bent plate-like structure. This bent plate-like structure fits the top surface of the thin kiln eaves and bends downward to cover the end of the thin kiln eaves, and then bends further inward to support the bottom surface of the thin kiln eaves.

[0017] Furthermore, a buffer pad is provided between the anchor at the end of the kiln eaves and the contact surface of the thin kiln eaves. The buffer pad is made of highly elastic and aging-resistant silicone material, with a thickness of 2mm to 5mm, and the surface of the pad is uniformly provided with micro anti-slip textures.

[0018] Furthermore, the adjustable connector is a bidirectional adjusting screw with both positive and negative threads, and both ends are equipped with fisheye connectors.

[0019] Furthermore, both the beam end anchors and the kiln eaves end anchors are made of weathering steel.

[0020] Compared with existing technologies, the anti-slip kit provided by this invention for thin kiln eaves has two main advantages. First, it uses eaves end anchors that are snapped into the joints of adjacent thin kiln eaves. By contacting the bottom, top, and end surfaces of the eaves to form a fixed structure, it eliminates the need for through holes in the thin kiln eaves, fundamentally avoiding the cracking or breakage problems caused by mechanical drilling, and achieving non-destructive reinforcement of thin kiln eaves. Second, it uses a combination rod with expansion joints as an adjustable connector to transfer the sliding force of the thin kiln eaves to the beam end anchors, and finally to the end of the stone cantilever beam, so that the anti-slip kit can adapt to kiln eaves with different cantilever lengths. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the eaves structure of a traditional cave dwelling;

[0023] Figure 2 This is an application diagram of an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 4 This is a flowchart of the non-destructive anti-slip reinforcement method in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Flower wall; 2. Thin kiln eaves; 3. Kiln eaves capping stones; 4. Stone cantilever beams; 5. Beam end anchors; 6. Kiln eaves end anchors; 7. Adjustable connectors; 8. Chemical anchors; 9. Buffer pads. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] As attached Figure 2 To be continued Figure 3 As shown:

[0030] The present invention provides an anti-slip kit for thin kiln eaves. The anti-slip kit is disposed between the stone cantilever beam 4 and the thin kiln eaves 2 and is used to limit the slippage of the thin kiln eaves 2 along the drainage slope direction. The anti-slip kit includes beam end anchors 5, kiln eaves end anchors 6 and adjustable connectors 7.

[0031] 1. In one embodiment of the present invention, the beam end anchor 5 is fixed to the end of the stone cantilever beam 4. The beam end anchor 5 is a steel plate that fits against the end face of the stone cantilever beam 4, and has through holes for chemical anchors 8 to pass through. The beam end anchor 5 is fixed to the end of the stone cantilever beam 4 by chemical anchors 8, wherein at least four sets of chemical anchors 8 are provided and distributed in the four corner areas of the beam end anchor 5. The beam end anchor 5 serves as the fixing reference for the entire anti-slip kit, and ultimately transmits the sliding force from the thin eaves 2 to the stone cantilever beam 4.

[0032] 2. In one embodiment of the present invention, the kiln eave end anchor 6 is engaged at the joint of two adjacent thin kiln eaves 2 and contacts the bottom surface, top surface and end of the thin kiln eaves 2 to form a fixed structure. The kiln eave end anchor 6 is a bent plate-shaped structure, which fits against the top surface of the thin kiln eaves 2 and bends downward to cover the end of the thin kiln eaves 2, and then bends further inward to support the bottom surface of the thin kiln eaves 2.

[0033] 3. In one embodiment of the present invention, one end of the adjustable connector 7 is connected to the beam end anchor 5 and the other end is connected to the kiln eave end anchor 6 to form a force transmission path for transmitting the sliding force of the thin kiln eave 2 to the stone cantilever beam 4. The adjustable connector 7 is a combined rod with an expansion joint.

[0034] 4. In one embodiment of the present invention, a buffer pad 9 is provided between the contact surface of the kiln eave end anchor 6 and the thin kiln eave 2. The buffer pad 9 is made of highly elastic and aging-resistant silicone material, the thickness of the buffer pad 9 is 2mm to 5mm, and the surface of the pad is uniformly provided with micro anti-slip textures.

[0035] 5. In one embodiment of the present invention, the adjustable connector 7 is a bidirectional adjusting screw with positive and negative threads, and both ends of the screw are provided with fisheye connectors.

[0036] 6. In one embodiment of the present invention, both the beam end anchor 5 and the kiln eaves end anchor 6 are made of weathering steel.

[0037] As attached Figure 4 As shown:

[0038] The present invention also provides a method for non-destructive anti-slip reinforcement of thin kiln eaves 2 based on the above-mentioned anti-slip kit, which includes the following steps:

[0039] S1: Surface Treatment and Installation of Beam-End Anchors 5. First, use a wire brush or angle grinder to remove the weathered layer, loose dust, and residual mortar from the end face of the stone cantilever beam 4 until a solid, fresh stone surface is exposed, and blow away any surface dust. Then, based on the through-hole positions on the beam-end anchors 5, drill holes on the end face of the stone cantilever beam 4 to locate the installation holes for the chemical anchors 8. After drilling, clean the holes to ensure no dust remains. After cleaning, inject anchoring adhesive into the holes, ensuring the adhesive slightly overflows the opening after inserting the chemical anchors 8. Attach the beam-end anchors 5 to the end face of the stone cantilever beam 4, inserting four sets of chemical anchors 8 in sequence and gently rotating them to ensure the anchoring adhesive fully coats the anchor rods. After the anchoring adhesive has completely cured, use a torque wrench to tighten the nuts diagonally in stages, ensuring a tight fit between the beam-end anchors 5 and the end face of the stone cantilever beam 4 without warping.

[0040] S2: Installation of the kiln eaves end anchor 6. Select the joint between two adjacent thin kiln eaves 2 as the installation point, and insert the kiln eaves end anchor 6 through the joint. During installation, ensure that the top surface of the kiln eaves end anchor 6 is flatly attached to the top surface of the thin kiln eaves 2, the end-covering section is attached to the end of the thin kiln eaves 2, and the bottom supporting section is fully supported by the bottom surface of the thin kiln eaves 2, forming a three-sided contact embedding structure. A buffer layer 9 is pre-placed between each contact surface, with the micro-anti-slip texture of the buffer layer 9 facing the kiln eaves surface to increase the friction of the contact surfaces and prevent stress concentration caused by hard contact. If the joint width is less than the thickness of the kiln eaves end anchor 6, the joint can be slightly widened, but the widening depth should not exceed one-third of the thickness of the thin kiln eaves 2.

[0041] S3: Adjustment and installation of the adjustable connector 7. Based on the actual distance between the installed beam end anchor 5 and the kiln eave end anchor 6, rotate the expansion joint in the middle of the adjustable connector 7 to match the effective length of the combined member with the distance between them. During adjustment, keep the pin hole axis direction of the fisheye connectors at both ends aligned to facilitate the subsequent insertion of the pin. Align one end of the adjustable connector 7 (adjusted to the appropriate length) with the connection hole on the beam end anchor 5, insert the pin, and lock it with a cotter pin; align the other end of the fisheye connector with the connection hole on the kiln eave end anchor 6, and similarly insert and lock it with a pin. During installation, ensure that the axis direction of the adjustable connector 7 is parallel to the drainage slope direction of the thin kiln eave 2 to ensure the rationality of the force transmission path.

[0042] S4: Pre-tightening force application and system locking. After the adjustable connector 7 is connected at both ends, rotate the bidirectional adjusting screw with positive and negative threads. Utilizing the differential effect of the positive and negative threads, the combined rods are gradually tightened, applying a pre-tightening force in the opposite direction of the drainage slope to the anchor 6 at the kiln eaves end. The magnitude of the pre-tightening force is determined by the anchor 6 at the kiln eaves end pressing against the surface of the thin kiln eaves 2, causing uniform compression deformation of the buffer pad 9, and ensuring that the kiln eaves do not experience any visible displacement. During the force application process, use a level or laser rangefinder to monitor the positional changes of the thin kiln eaves 2 in real time to prevent excessive tension that could lead to excessive local stress on the kiln eaves. After the pre-tightening force is adjusted to the correct position, tighten the locking nut on the positive and negative thread screw to prevent the threads from loosening under long-term vibration. After the single anti-slip kit is installed, install the remaining anti-slip kits sequentially along the joints of the thin kiln eaves 2 following the steps described above. The spacing between each kit should be evenly distributed to form an overall anti-slip system.

[0043] S5: Completion Inspection and Surface Protection. After all anti-slip kits are installed, check the locking status of each connection node and the fit of the cushioning layer 9. Clean up the site after construction, removing temporary supports and construction waste.

[0044] It should be noted that the above-mentioned anti-slip kit is not limited to the anti-slip reinforcement of thin kiln eaves 2, but can also be applied to anti-slip reinforcement projects of similar structures such as traditional stone slab eaves, stone masonry eaves, thin eaves of antique buildings, and thin-plate eaves in modern buildings with drainage slopes.

[0045] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anti-slip kit for a thin kiln eaves, the anti-slip kit being disposed between a stone cantilever beam (4) and a thin kiln eaves (2) and used to limit the slippage of the thin kiln eaves (2) along the drainage slope direction, characterized in that, The anti-slip kit includes: An anchor (5) is fixed to the end of the stone cantilever beam (4); An anchor (6) at the end of a kiln eaves is fitted at the joint of two adjacent thin kiln eaves (2) and contacts the bottom, top and end of the thin kiln eaves (2) to form a fixed structure. At least one adjustable connector (7) is connected at one end to the beam end anchor (5) and at the other end to the kiln eave end anchor (6) to form a force transmission path for transmitting the sliding force of the thin kiln eave (2) to the stone cantilever beam (4). The adjustable connector (7) is a combined rod with an expansion joint.

2. The anti-slip kit for thin kiln eaves according to claim 1, characterized in that, The beam end anchor (5) is a steel plate that fits onto the end face of the stone cantilever beam (4), and has through holes for chemical anchors (8) to pass through. There are at least four sets of chemical anchors (8) distributed in the four corner areas of the beam end anchor (5).

3. The anti-slip kit for thin kiln eaves according to claim 1, characterized in that, The kiln eaves end anchor (6) is a bent plate structure. The bent plate structure is attached to the top surface of the thin kiln eaves (2) and bends downward to cover the end of the thin kiln eaves (2), and then bends further inward to support the bottom surface of the thin kiln eaves (2).

4. The anti-slip kit for thin kiln eaves according to claim 1, characterized in that, A buffer pad (9) is provided between the contact surface of the kiln eave end anchor (6) and the thin kiln eave (2), and the buffer pad (9) is made of highly elastic and aging-resistant silicone material.

5. The anti-slip kit for thin kiln eaves according to claim 1, characterized in that, The adjustable connector (7) is a bidirectional adjusting screw with forward and reverse threads, and both ends are equipped with fisheye connectors.

6. The anti-slip kit for thin kiln eaves according to claim 1, characterized in that, Both the beam end anchor (5) and the kiln eaves end anchor (6) are made of weathering steel.

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