Formwork reinforcing device for settlement joint between adjacent roofs and waterproof method

Abstract

The invention relates to a formwork reinforcing device for a settlement joint between adjacent roofs and a waterproof method. The formwork reinforcing device comprises a shaped steel plate, split bolt fixing sleeves and galvanized iron sheets, the split bolt fixing sleeves are symmetrically arranged in the shaped steel plate at intervals, the galvanized iron sheets are arranged on the bottom edge of the shaped steel plate and extend towards the outer portions of the two sides, and iron nail fixing holes are further formed in the galvanized iron sheets. According to the formwork reinforcing system between the adjacent roof settlement joints and the node waterproof method of the formwork reinforcing system, the fixing devices are arranged between the adjacent roof settlement joints, so that the formwork mounting and reinforcing efficiency is improved. Meanwhile, in the waterproof construction process, the self-waterproof performance of the structure is improved by adopting a secondary forming mode at the position of the cover plate between the adjacent roof settlement joints, and the overall waterproof performance of the waterproof weak link between the adjacent roof settlement joints is improved by upturning the waterproof roll to the bottom of the cover plate between the adjacent roof settlement joints and additionally arranging a stainless steel batch.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to the construction technology for the settlement joint between adjacent roofs in existing structures. Specifically, it relates to a formwork reinforcement device and waterproofing method for the settlement joint between adjacent roofs. Background Technology

[0002] Settlement joints between adjacent roofs are common at various construction sites. The main quality problems at these joints include poor concrete quality and leakage. Leakage at these joints differs from leakage in the roof slab and side walls because the space is confined, leading to higher costs for subsequent sealing and maintenance. Improving the construction quality and reducing the risk of leakage at these joints hinges on the proper installation and reinforcement of formwork, as well as the detailed construction of subsequent waterproofing. Investigations have revealed two traditional methods for reinforcing formwork at adjacent roof settlement joints: 1. The settlement joint between adjacent roofs is reinforced with wooden formwork and tie rods. Internal supports are also installed in the formwork between the settlement joints to prevent deformation of the formwork during concrete pouring, which would affect the quality of the concrete. This construction method is extremely inefficient and the construction quality is difficult to guarantee because the space between the settlement joints is small, making operation difficult. It is also difficult to verify whether the formwork reinforcement is firm. Furthermore, the same problems arise during the later demolding process, which may affect subsequent construction processes.

[0003] 2. The settlement joints between adjacent roofs are filled with extruded polystyrene boards of the same width as the settlement joints between adjacent roofs to serve as temporary support. Although this construction method improves construction efficiency, the concrete forming quality is poor because the hardness of the extruded polystyrene boards is poor and they cannot withstand the lateral pressure generated during concrete pouring and vibration, resulting in quality problems such as bending and uneven width between adjacent roof settlement joints.

[0004] Therefore, it is urgent to address the issue of poor concrete forming quality at the settlement joints between adjacent roofs and to improve the construction efficiency of formwork at these joints to reduce the risk of leakage later. Summary of the Invention

[0005] To address the issues of low construction efficiency, poor forming quality, and high risk of leakage in the formwork reinforcement of adjacent roof settlement joints, this invention improves the overall construction quality of adjacent roof settlement joint areas by addressing both the concrete construction of the settlement joints and the detailed construction of the waterproofing structure between the roof settlement joints.

[0006] To achieve the above object, the present invention first proposes a formwork reinforcement device for settlement joints between adjacent roofs: the formwork reinforcement device (1) includes a standardized steel plate (1-1) with a "U" shape in side projection, a tie bolt fixing sleeve (1-2), and galvanized iron sheet (1-3). The tie bolt fixing sleeves (1-2) are symmetrically and spaced inside the standardized steel plate (1-1). The galvanized iron sheet (1-3) is provided at the bottom edge of the standardized steel plate (1-1) and extends outward to both sides. Nail fixing holes are also provided on the galvanized iron sheet (1-3).

[0007] Furthermore, the present invention also proposes a method for using the above formwork reinforcement device for settlement joints between adjacent roofs, including Step 1: Construct the outer formwork between adjacent roof settlement joints and configure the backing ribs according to the design; Step 2: Apply a release agent on the surface of the standardized steel plate (1-1) and place it at the position between adjacent roof settlement joints; Step 3: Adjust the position of the standardized steel plate (1-1) to prevent deviation. After positioning, use nails to temporarily fix the standardized steel plate (1-1) on the wooden forms on both sides of the adjacent roof settlement joint through the galvanized iron sheet at the bottom and the reserved nail fixing holes; Step 4: After the steel bars of the concrete beams on both sides of the adjacent roof settlement joint are tied, start to reinforce the wooden forms on both sides of the adjacent roof settlement joint and the standardized steel plate (1-1); Step 4.1: The reinforcement of the standardized steel plate (1-1) is carried out using tie rods; Step: Mark the positions of the reserved tie bolt fixing sleeves (1-2) on the wooden form; Step: Drill holes and insert tie rods in the wooden form; Step: Screw the tie rods into the fixing thread section at the front end of the reserved tie bolt fixing sleeve (1-2); Step: Fix the tie rods on one side of the wooden form; Step 5: After the steel bars and formwork works between adjacent roof settlement joints are completed, construct the water stop steel plate (2) at the construction joint position; Step 6: Carry out the concrete pouring operation of the main structure; Step 7: After the lower concrete structure reaches 7 days of age, remove the formwork of the lateral members and pour the concrete of the concrete cover plate (3) between adjacent roof settlement joints; Step 8: After the main structure is completed, carry out the waterproof construction between adjacent roof settlement joints; Step 8.1: After the additional waterproofing layer is completed at the corner of the main structure on both sides of the settlement joint between adjacent roofs, the waterproofing membrane (4) on the side of the main structure is flipped up to the bottom of the settlement joint between adjacent roofs and fixed with aluminum alloy strips (5) and cement nails. Step 8.2: Fill the cover plate (2) between adjacent roof settlement joints with polystyrene foam rods (6); Step 8.3: After the waterproof membrane (4) is completed, stainless steel waterproofing material (7) and aluminum roof cover plate (8) are added at the cover plate (2) between adjacent roof settlement joints.

[0008] The template reinforcement system and its joint waterproofing method proposed in this invention for adjacent roof settlement joints improve the efficiency of template installation and reinforcement by setting fixing devices between adjacent roof settlement joints. Simultaneously, during waterproofing construction, a secondary molding method is used at the cover plate position between adjacent roof settlement joints to enhance the structure's self-waterproofing performance. This is achieved by folding the waterproof membrane up to the bottom of the cover plate between adjacent roof settlement joints and adding stainless steel waterproofing sealant, thereby improving the overall waterproofing performance of the weak points in the waterproofing of adjacent roof settlement joints.

[0009] Furthermore, the aforementioned template reinforcement device for settlement joints between adjacent roofs uses a standardized steel plate (1-1) made of Q235B material. Considering that the common width of settlement joints between adjacent roofs on construction sites is , the standardized steel plate (1-1) can be mass-produced in the factory based on this module.

[0010] Furthermore, the aforementioned template reinforcement device for settlement joints between adjacent roofs uses tie bolt fixing sleeves (1-2) made of Q235B material. These sleeves are connected to the prefabricated steel plate (1-1) by welding and are spaced apart, with the spacing being both longitudinal and transverse. Tie bolt fixing threads are pre-installed at both ends of the holes in the tie bolt fixing sleeves (1-2). In this way, the pre-installed tie bolt fixing sleeves (1-2) connect and fix the prefabricated steel plate (1-1) to the wooden formwork on both sides of the settlement joint between adjacent roofs. Simultaneously, the fixing sleeves prevent deformation of the steel formwork during concrete pouring, acting as internal supports.

[0011] Thus, by temporarily fixing the prefabricated steel plate (1-1) to the wooden molds on both sides of the settlement joint between adjacent roofs through the above measures, the invention can achieve rapid installation and support of the templates at the settlement joint between adjacent roofs. Attached Figure Description

[0012] Figure 1 This is a large-scale drawing of the standardized steel plate proposed in this invention.

[0013] Figure 2 This is a schematic diagram of the waterproofing method for settlement joints between adjacent roofs proposed in this invention. Detailed Implementation

[0014] The technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope claimed by the present application.

[0015] Such as Figure 1 、 one A formwork reinforcement device (1) for settlement joints between adjacent roofs, including a standardized steel plate (1-1) with a "U" shape in side projection, a tie bolt fixing sleeve (1-2), and galvanized iron sheets (1-3). Tie bolt fixing sleeves (1-2) are symmetrically and spaced inside the standardized steel plate (1-1). Galvanized iron sheets (1-3) are arranged at the bottom edge of the standardized steel plate (1-1) and extend outward to both sides. Nail fixing holes are also provided on the galvanized iron sheets (1-3).

[0016] Among them, the standardized steel plate (1-1) is made of Q235B, and the opening interval distance of the "U" shape in its side projection is ~. The tie bolt fixing sleeve (1-2) is made of Q235B, and is connected to the standardized steel plate (1-1) by welding and spaced. The spacing distance is the longitudinal spacing and the transverse spacing. Tie bolt fixing segments are reserved at both ends of the holes of the tie bolt fixing sleeve (1-2).

[0017] The standardized steel plate (1-1) is connected and fixed to the wooden forms on both sides between the settlement joints of adjacent roofs through the reserved tie bolt fixing sleeves (1-2). At the same time, the fixing sleeves can prevent the steel form from deforming during concrete pouring and play an internal support role. In this way, it avoids the problems such as inconvenient implementation or poor support effect of the formwork operation for the settlement joints between adjacent roofs in the traditional construction technology, resulting in problems such as form bulging and form displacement.

[0018] Embodiment 2 is a waterproof joint practice for settlement joints between adjacent roofs, and its implementation process relies on the formwork reinforcement device (1) for settlement joints between adjacent roofs shown in Embodiment 1.

[0019] A usage method of a formwork reinforcement device for settlement joints between adjacent roofs, including Step 1: Construct the outer formwork between the settlement joints of adjacent roofs and configure the backing ribs according to the design; Step 2: Apply a release agent on the surface of the standardized steel plate (1-1) and place it at the position between the settlement joints of adjacent roofs; Step 3: Adjust the position of the shaped steel plate (1-1) to prevent deviation. After positioning, use iron nails to temporarily fix the shaped steel plate (1-1) to the wooden mold on both sides of the adjacent roof settlement joint through the galvanized iron sheet at the bottom and the reserved iron nail fixing holes. Step 4: After the reinforcement of the concrete beams on both sides of the settlement joint between adjacent roofs is completed, the reinforcement of the wooden formwork and the prefabricated steel plate (1-1) on both sides of the settlement joint between adjacent roofs begins. Step 4.1: The reinforcement of the shaped steel plate (1-1) is carried out using tie rods; Step 1: Mark the positions of the pre-reserved tie bolt fixing sleeves (1-2) on the wooden mold; Steps: Drill holes in the wooden mold and insert tie rods; Step 1: Screw the tie rod into the fixing thread segment at the front end of the pre-reserved tie bolt fixing sleeve (1-2); Step 1: Secure the tie rod on one side of the wooden mold; Step 5: After the reinforcement and formwork works between adjacent roof settlement joints are completed, the water-stop steel plate (2) is constructed at the construction joint location; Step 6: Concrete pouring for the main structure; Step 7: After the lower concrete structure has reached 7 days of age, remove the formwork of the lateral members and pour concrete for the concrete cover plate (3) between the settlement joints of the adjacent roofs. Step 8: After the main structure is completed, carry out waterproofing construction between the settlement joints of adjacent roofs; Step 8.1: After the additional waterproofing layer is completed at the corner of the main structure on both sides of the settlement joint between adjacent roofs, the waterproofing membrane (4) on the side of the main structure is flipped up to the bottom of the settlement joint between adjacent roofs and fixed with aluminum alloy strips (5) and cement nails. Step 8.2: Fill the cover plate (2) between adjacent roof settlement joints with polystyrene foam rods (6), which are used to protect the waterproof membrane (4) located on the opposite inner side. Step 8.3: After the waterproof membrane (4) is completed, stainless steel waterproofing material (7) and aluminum roof cover plate (8) are added at the cover plate (2) between adjacent roof settlement joints.

[0020] As can be seen from the above embodiments, the present invention is a reusable internal formwork reinforcement system for settlement joints between adjacent roofs and its joint waterproofing construction process. It is applicable to the quality control of internal formwork installation and waterproofing details construction during the construction of settlement joints between adjacent roofs. When applied, it can achieve efficient reinforcement and installation of formwork for settlement joints between adjacent roofs. The standardized formwork reinforcement device used for settlement joints between adjacent roofs can be reused, improving material turnover rate and reducing production costs. At the same time, it changes the traditional detailed waterproofing construction of settlement joints between adjacent roofs, reducing the risk of leakage in the later stage.

[0021] The above are merely embodiments provided in this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A formwork reinforcement device for settlement joints between adjacent roofs, characterized in that: The template reinforcement device (1) includes a standardized steel plate (1-1) with a "channel" shape in side projection, a tie bolt fixing sleeve (1-2), and galvanized iron sheet (1-3). The tie bolt fixing sleeves (1-2) are symmetrically and spaced inside the standardized steel plate (1-1). The galvanized iron sheet (1-3) is provided at the bottom edge of the standardized steel plate (1-1) and extends outward to both sides. There are also nail fixing holes on the galvanized iron sheet (1-3).

2. A method of using the template reinforcement device for settlement joints between adjacent roofs as described in claim 1, characterized in that: including Step 1: Construct the outer templates between the adjacent roof settlement joints and configure the back ribs according to the design. Step 2: Apply a release agent on the surface of the standardized steel plate (1-1) and place it at the position between the adjacent roof settlement joints. Step 3: Adjust the position of the standardized steel plate (1-1) to prevent deviation. After positioning, use nails to temporarily fix the standardized steel plate (1-1) on the wooden templates on both sides of the adjacent roof settlement joints through the galvanized iron sheet at the bottom and the reserved nail fixing holes. Step 4: After the steel bars of the concrete beams on both sides of the adjacent roof settlement joints are tied, start to reinforce the wooden templates on both sides of the adjacent roof settlement joints and the standardized steel plate (1-1). Step 4.1: The reinforcement of the standardized steel plate (1-1) is carried out using tie rods. Step: Mark the positions of the reserved tie bolt fixing sleeves (1-2) on the wooden templates. Step: Drill holes and insert tie rods in the wooden templates. Step: Screw the tie rods into the fixing thread sections at the front ends of the reserved tie bolt fixing sleeves (1-2). Step: Fix the tie rods on one side of the wooden template. Step 5: After the steel bars and template works between the adjacent roof settlement joints are completed, construct the water stop steel plate (2) at the construction joint position. Step 6: Carry out the concrete pouring operation of the main structure. Step 7: After the lower concrete structure reaches 7 days of age, remove the templates of the lateral components and carry out the concrete pouring of the concrete cover plate (3) between the adjacent roof settlement joints. Step 8: After the main structure is completed, carry out the waterproof construction between the adjacent roof settlement joints. Step 8.1: After the waterproof additional layer construction at the corner parts of the main structure on both sides of the adjacent roof settlement joints is completed, turn up the waterproof coiled material (4) on the side of the main structure to the bottom of the adjacent roof settlement joints and fix it using aluminum alloy pressing strips (5) and cement nails. Step 8.2: Fill the polystyrene foam rod (6) at the cover plate (2) between the adjacent roof settlement joints. Step 8.3: After the construction of the waterproof coiled material (4) is completed, add a stainless steel drip (7) and a settlement joint roof aluminum plate cover (8) along the cover plate (2) between the adjacent roof settlement joints.

3. The template reinforcement device for settlement joints between adjacent roofs according to claim 1 or 2, characterized in that: The material of the standardized steel plate (1-1) is Q235B.

4. The template reinforcement device for settlement joints between adjacent roofs according to claim 1 or 2, characterized in that: The material of the tie bolt fixing sleeve (1-2) is Q235B. It is connected to the standardized steel plate (1-1) by welding and is spaced at intervals. The spacing distances are longitudinal spacing and transverse spacing. Fixing thread sections for tie rods are reserved at both ends of the holes in the tie bolt fixing sleeve (1-2).

5. The template reinforcement device for settlement joints between adjacent roofs according to claim 2, characterized in that: The cover plate (2) between adjacent roof settlement joints is constructed by post-pouring and secondary molding. Specifically, it is achieved by pouring concrete into the cover plate (2) between adjacent roof settlement joints and the main building in two separate steps in steps 6 and 7.

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