Disassembly-free outer formwork of thermal insulation concrete member and construction supporting system

Abstract

The utility model discloses a disassembly-free outer formwork of a thermal insulation concrete member. The disassembly-free outer formwork is arranged on the outdoor side of a to-be-poured concrete member. The disassembly-free outer formwork comprises a plurality of heat preservation plates, anchoring parts and Z-shaped connecting parts. The anchoring parts are arranged in the heat preservation plate at intervals. The inner ends of the anchoring parts extend out of the inner side of the insulation board to form anchoring sections; the outer ends of the anchoring parts are in limiting fit with the heat preservation plate in the anchoring section direction. The Z-shaped connecting pieces are used for splicing the insulation boards; the at least two Z-shaped connecting pieces are bidirectionally staggered along the joint of the insulation board; the middle section of the Z-shaped connecting piece is embedded into a limiting groove in the edge of the insulation board, and two sides are fixed on the insulation board; the limiting groove is matched with the cross section of the middle section of the Z-shaped connecting piece in size. The utility model further discloses a construction supporting system of the thermal insulation concrete member. The construction supporting system comprises the disassembly-free outer formwork, an inner formwork and a reinforcing system. The reinforcing system comprises an opposite-pulling reinforcing structure and a pulling structure. The tying structure comprises a plurality of flexible connecting pieces, and the reinforcing structure on the outer side and the floor slab bottom die are tied through the flexible connecting pieces.

Description

TECHNICAL FIELD

[0001] The utility model relates to building thermal insulation structure construction technical field especially relates to a kind of free disassembly outer formwork of thermal insulation concrete component and construction support system. BACKGROUND

[0002] With the rapid development of China's economy, the construction industry continues to promote technological innovation, and the housing construction structure has been fully converted from traditional brick-concrete structure to new system mainly with cast-in-place concrete frame structure. In the field of cast-in-place concrete construction, the common slab system generally uses plywood formwork or aluminum alloy formwork, but the setting and removal process is complicated, and the turnover rate is low, which leads to significant waste of resources. At the same time, the traditional formwork system and the external wall insulation construction have the problem of process separation, and the formwork setting, concrete pouring, form removal and insulation layer installation need to be completed in stages, which not only prolongs the construction period, but also increases the comprehensive cost. In addition, the traditional external insulation board construction has quality problems such as falling off, hollowing and cracking, which seriously affects the durability of the building.

[0003] In recent years, the industry has tried to replace the traditional external formwork with free disassembly insulation board, and to realize the integration of formwork and insulation function through integrated construction. However, in the prior art, the in-plane splicing of the insulation board is either rough, which still has the problems of grouting and misalignment, or the node design is complex, which requires too high construction precision, resulting in low engineering feasibility. At the same time, the existing technology pays insufficient attention to the reinforcement stability of the insulation external formwork during construction and the connection integrity of the main component, especially in complex structure parts, which is prone to form expansion or local separation. These defects restrict the large-scale application of integrated construction. Therefore, it is urgent to improve and innovate from the dimensions of material structure, connection node and reinforcement method, and to seek a free disassembly external formwork that takes into account construction efficiency and quality reliability. UTILITY MODEL CONTENTS

[0004] The main technical problem to be solved by the utility model is to provide a free disassembly external formwork of thermal insulation concrete component and a construction support system, so that the construction of thermal insulation structure is more efficient and reliable in quality.

[0005] In order to solve the above technical problems, the utility model provides a free disassembly external formwork of thermal insulation concrete component, which is arranged on the outdoor side of the concrete component to be poured;The free disassembly external formwork comprises a plurality of insulation boards, anchor members and Z-shaped connecting members;

[0006] The anchor members are arranged at intervals in the plane of the insulation board;The inner end of the anchor member extends out of the inner side surface of the insulation board, forming an anchoring segment;The outer end of the anchor member is limited and matched with the insulation board in the direction close to the anchoring segment;

[0007] The Z-shaped connectors are used for splicing the several thermal insulation boards; at the splicing points, at least two Z-shaped connectors are arranged in a bidirectional staggered manner along the joint of the thermal insulation board; the middle section of the Z-shaped connector is embedded into a limiting groove pre-set in the edge of the thermal insulation board, and the two sides are fixed on the thermal insulation board; the size of the limiting groove matches the cross section of the middle section of the two Z-shaped connectors.

[0008] In a preferred embodiment, the anchoring section of the anchor is provided with a radial limiting part.

[0009] In a preferred embodiment, the thermal insulation board adopts an ASG inorganic composite thermal insulation board.

[0010] In a preferred embodiment, the arrangement density of the splicing points of the Z-shaped connector is not less than 0.5 / m2.

[0011] In a preferred embodiment, the top of the removable formwork is higher than the floor surface by not less than 150 mm.

[0012] In a preferred embodiment, the anchor is arranged in a plum blossom shape.

[0013] The utility model also provides a kind of construction support system of thermal insulation concrete component, including the removable formwork of thermal insulation concrete component described above;The construction support system further includes inner formwork and reinforcing system;

[0014] The inner formwork is arranged on the indoor side of the concrete component to be poured, and is arranged opposite to the removable formwork;The reinforcing system is used to reinforce the inner formwork and the removable formwork on both sides.

[0015] In a preferred embodiment, the reinforcing system includes a tensioning reinforcing structure;The tensioning reinforcing structure includes a reinforcing frame composed of a plurality of orthogonal rib strips on two sides, and a tensioning connector arranged between the two reinforcing frames.

[0016] In a preferred embodiment, the reinforcing system further includes a tie structure;The tie structure includes a plurality of flexible connectors, and the plurality of flexible connectors tie the reinforcing frame on one side of the outer side to the floor bottom form at the top.

[0017] In a preferred embodiment, the construction support system further includes an inner support module;The inner support module includes a plurality of rigid connectors arranged between the inner formwork and the removable formwork.

[0018] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0019] The innovative "Z"-shaped joint clips used in this utility model for splicing insulation boards in the non-removable external formwork avoid the risk of gaps due to deflection or misalignment of the insulation boards. The limiting grooves also control the joint width, significantly reducing grout leakage and overflow. This connection method is not only quick and simple to operate, but also possesses high reliability and stability. The non-removable external formwork uses high-quality ASG inorganic composite insulation board. Besides its ideal insulation, fireproofing, and moisture resistance, as well as excellent impact and bending resistance, the ASG composite insulation board exhibits good compatibility and strong adhesion to concrete materials, strong adaptability to the deformation of the main components, and a lifespan matching that of the main components. This avoids the problems of easy detachment, hollowing, and cracking associated with traditional insulation methods, greatly improving the durability of the insulation components. Through optimization in connection methods and material selection, the quality of the non-removable external formwork is more reliable, making the integrated construction of insulated concrete components more mature and further promoting the transformation of building construction technology towards energy conservation, cost reduction, and high efficiency.

[0020] The construction support system provided by this utility model is equipped with the aforementioned non-removable external formwork. Leveraging its technical advantages, it reduces the amount of formwork used in the pouring of insulated concrete components, simplifies construction procedures, and promotes the maturity and large-scale development of integrated construction of building insulation structures. Furthermore, the construction support system adopts a mature "primary and secondary ribs + tie bolts" tie reinforcement structure. Then, through this tie structure, the external formwork is double-fixed using the floor slab bottom formwork of the main building structure, further reducing the risk of formwork bulging. Attached Figure Description

[0021] Figure 1 This is an elevation view of the outdoor side of the non-removable external formwork described in embodiments 1 and 2 of this utility model;

[0022] Figure 2 This is a cross-sectional diagram illustrating the construction process of the non-removable external formwork as described in Embodiments 1 and 2 of this utility model;

[0023] Figure 3 This is a partial schematic diagram of the seam-jointed insulation board as described in Embodiments 1 and 2 of this utility model;

[0024] Figure 4 This is a schematic diagram of the tie structure described in Embodiment 2 of this utility model.

[0025] The markings in the diagram are as follows: 1-cast-in-place concrete component, 2-rigid support component, 21-base plate, 3-removable outer formwork, 31-insulation board, 4-anchor, 41-radial limiting part, 5-joint clip, 6-inner formwork, 71-secondary rib, 72-main rib, 73-crossbar, 81-tie bolt, 82-sleeve, 91-iron wire, 92-positioning steel nail, 10-floor slab bottom formwork. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] Example 1

[0030] like Figures 1-3 As shown, this utility model embodiment provides a non-removable outer formwork for thermally insulated concrete components, which is assembled from several inorganic composite thermal insulation boards 31 with support capabilities through an improved connection method. The non-removable outer formwork 3 replaces the traditional outer formwork and is set on the outdoor side of the concrete component 1 to be poured. After the non-removable outer formwork 3, together with the traditional inner formwork 6, casts the concrete component 1, it bonds itself to the concrete component 1 as one, together forming a thermally insulated component with enclosure function. In this document, the non-removable outer formwork 3 is also referred to as "thermal insulation outer formwork" or "outer formwork", and the concrete component 1 is also referred to as "main component 1".

[0031] The outer formwork 3 is set on the outdoor side of the concrete component 1 to be poured, and includes several insulation boards 31, anchors 4, and Z-shaped connectors. The anchors serve as embedded parts, connecting the insulation boards 31 to the concrete component 1 as a whole. The Z-shaped connectors are used to splice adjacent insulation boards 31.

[0032] In the present embodiment, the insulation board 31 is made of ASG inorganic composite insulation board, which has the following advantages: (1) it has better impact resistance and bending resistance, and its supporting capacity for concrete construction is not inferior to that of traditional formwork; (2) its low thermal conductivity makes it have excellent heat insulation performance, in addition, it also has high fireproof grade and moisture resistance grade; (3) it has good compatibility with concrete materials and strong adhesion with the main component 1 after installation. Therefore, the ASG inorganic composite insulation board is the preferred material for the formwork due to its excellent performance.

[0033] As shown in Figure 1 , the anchor 4 is arranged in a quincunx pattern in the plane of the insulation board 31. The setting density of the anchor 4 meets the following conditions at the same time: the center distance is not greater than 550 mm, and the number per square is not less than 6. In particular, for non-standard size insulation boards 31, the number of anchors 4 of a single board is not less than 2. For the outer formwork 3, the center distance of the anchor 4 from the board edge is not less than 100 mm. As shown in Figure 2 , in the anchoring direction, the inner end of the anchor 4, i.e. the end close to the concrete component 1, extends out of the inner side surface of the insulation board 31. For the convenience of the following description, the part of the anchor 4 extending out of the inner side surface of the insulation board 31 is referred to as the anchoring segment from the functional point of view. The length of the anchoring segment is not less than 80 mm. In actual construction, when the insulation board 31 is in place, the anchoring segment of the anchor 4 is located in the main component 1 to be poured, and is connected to the steel reinforcement cage of the main component 1 by binding or spot welding. To strengthen the anchoring effect, the anchoring segment of the anchor 4 is welded with a radial limiting portion 41. The radial limiting portion 41 is configured as a ring plate or a section of a pin shaft. The outer end of the anchor 4 extends outwards in a certain width to limit the cooperation with the insulation board 31 in the direction close to the anchoring segment. In a preferred embodiment, the anchor 4 can be implemented as an anchor nail, a plastic anchor bolt or a metal screw.

[0034] In the present embodiment, the Z-shaped connecting piece is implemented as a "Z" shaped joint clip 5, which rigidly splices two adjacent insulation boards 31. The splicing points of the insulation boards 31 are arranged at intervals in the plane of the outer formwork 3, and the setting density is not less than 1 / 2 m². As shown in Figure 1 , Figure 3As shown, at each splicing point, at least two of the joint clamps 5 are arranged in a bidirectional staggered manner along the extension direction of the joint to eliminate the deflection effect of the "Z" shaped structure of the joint clamp 5 on the adjacent two sides of the thermal insulation board 31 when the outer formwork 3 is subjected to stress, thereby preventing the thermal insulation board 31 from being staggered and opened. It should be understood that the length of the middle section of the joint clamp 5, that is, the "clamping" thickness of the thermal insulation board 31, is not greater than the thickness of the thermal insulation board 31. Since the middle section of the joint clamp 5 has a certain thickness, the thermal insulation board 31 generates a structural gap when spliced, which is easy to cause slurry leakage in subsequent construction. To solve this problem, at each splicing point, the thermal insulation board 31 on either side is cut out with a limiting groove in the edge, and the depth and total width of the limiting groove are matched with the cross section of the middle sections of the two joint clamps 5. In this way, the middle section of the joint clamp 5 is embedded in the limiting groove when installed, so that the adjacent two thermal insulation boards 31 cannot be tightly connected due to the presence of the joint clamp 5. After the joint clamp 5 is placed in place, the two sides are fixed on the thermal insulation board 31 by steel nails or small diameter bolts.

[0035] In actual construction, the splicing of the thermal insulation outer formwork 3 also needs to be paid attention to: the joint of the adjacent two thermal insulation boards 31 is controlled to be within 5 mm, and if it does not meet the requirement, foaming glue, cement mortar or sponge strip is used for sealing. Secondly, the top of the outer formwork 3 is higher than the floor surface by not less than 150 mm, so as to prevent the concrete slurry from overflowing, and also to facilitate the connection with the thermal insulation outer formwork 3 of the upper layer after the floor construction.

[0036] The connecting mode of the non-disassembly outer formwork 3 provided by the embodiment of the utility model innovatively uses the "Z" shaped joint clamp 5 to splice the adjacent two thermal insulation boards 31. The bidirectional staggered arrangement of the joint clamp 5 avoids the risk of opening of the thermal insulation board 31 due to deflection and staggering, and also realizes the control of the joint width through the limiting groove, greatly reducing the generation of slurry leakage and slurry overflow. The connecting mode not only is fast and simple in operation, but also has high reliability and stability. The non-disassembly outer formwork 3 uses high-quality ASG inorganic composite thermal insulation board. In addition to having ideal thermal insulation, fireproofing and moisture resistance, and better impact resistance and bending resistance, the ASG inorganic composite thermal insulation board has good compatibility and strong adhesion with concrete materials, strong deformation adaptation to the main component 1, and material life adaptation to the main component 1, avoiding the problems of easy falling, hollowing and cracking of the traditional thermal insulation method, and greatly improving the durability of the thermal insulation component. Through the optimization of the connecting mode and the material selection, the quality of the non-disassembly outer formwork 3 is more reliable, the integrated construction of the thermal insulation concrete component 1 is more mature, and the building construction technology is further promoted to the energy-saving, cost-reducing and efficient transformation.

[0037] Embodiment 2

[0038] As Figures 1-4As shown, the utility model embodiment provides a kind of construction support system of thermal insulation concrete component 1, including the removable outer formwork 3 provided in embodiment 1.The construction support system further includes inner formwork 6, reinforcing system and inner support module.

[0039] The inner formwork 6 uses conventional wood formwork or aluminum formwork, and is arranged opposite to the removable outer formwork 3 on the indoor side of the concrete component 1 to be poured.The structure of the inner formwork 6 is a mature existing construction technology, which is not described herein.

[0040] The reinforcing system includes a tensioning reinforcing structure and a tie structure.The tensioning reinforcing structure is arranged on the surface of the inner formwork 6 and the outer formwork 3 to position and reinforce the two sets of formworks.The tie structure is used to tie the tensioning reinforcing structure on the outside to the floor slab bottom form 10 of the main building structure.

[0041] As shown in FIGS. Figure 1 , Figure 2 The tensioning reinforcing structure adopts the form of "primary and secondary beams 71+tensioning bolts 81", including a plurality of primary beams 72, secondary beams 71 and tensioning bolts 81.The secondary beams 71 are square steel pipes or square wooden strips, and are arranged vertically on the outer formwork 3 and the inner formwork 6.Preferably, the secondary beams 71 are preferably arranged along the joint of the insulation board 31 and the axis of the anchor 4 to avoid the problems of grout leakage at the joint and exposure of the anchor 4 in subsequent construction as much as possible.The primary beams 72 are round steel pipes, and are arranged horizontally (also defined as "transversely") on the surface of the secondary beams 71.A plurality of the secondary beams 71 and the primary beams 72 are arranged transversely and vertically, respectively, to form a grid-shaped reinforcing frame.A plurality of sleeves 82 are sealingly arranged in the thickness direction of the inner formwork 6 and the outer formwork 3.The tensioning bolts 81 are arranged in the sleeves 82, and are fixed on the primary beams 72 at both ends by means of a chevron and a nut.In this way, the tensioning bolts 81 are arranged between the inner and outer reinforcing frames, and position and reinforce the inner formwork 6 and the outer formwork 3 by threaded cooperation.For ordinary skilled persons in the art, the construction of the tensioning reinforcing structure is a mature existing construction technology, and specific details are not described herein.

[0042] As Figure 4As shown, the top of the secondary rib 71 is higher than the thermal insulation formwork 3 by at least 100 mm. Several steel nails 92 are placed in the top of the thermal insulation formwork 3 and partially in the secondary rib 71 in the thickness direction, so that the reinforcing frame can be hung on the thermal insulation formwork 3 to prevent slipping. The tie structure includes a crossbar 73 and several flexible connectors. In this embodiment, the flexible connectors are iron wires 91. In the top section of the outer secondary rib 71, a crossbar 73 is arranged on the side away from the insulation board 31. The several iron wires 91 tie the crossbar 73 with the floor formwork 10 of the building main structure at a horizontal interval of 1.5 meters to prevent the formwork from rising during concrete pouring. The fixing method of the iron wire 91 with the floor formwork 10 has various conventional methods, which will not be described here. The tie structure serves as an additional reinforcing measure to improve the stability of the inner formwork 6 and the outer formwork 3.

[0043] As shown in Figure 2 The inner support module is arranged on the reinforcement framework between the inner formwork 6 and the outer formwork 3, and cooperates with the counter-pulling reinforcing structure to position the two groups of formworks. The formwork inner support module includes several rigid supports 2 and protective layer pads. In this embodiment, the rigid support 2 is specifically a top formwork rod and a cement support. The top formwork rod is installed in the reinforcement framework of the concrete member 1 by binding or spot welding connection, supports the inner formwork 6 and the outer formwork 3 in the thickness direction of the concrete member 1, and controls the formwork spacing and the concrete protective layer thickness. The protective layer pad is arranged on both sides of the reinforcement framework to double control the concrete protective layer thickness. The protective layer pad is arranged in a quincunx shape with a placement density of 3-4 pieces / m2. To avoid damage to the outer formwork 3 by the top formwork rod and the protective layer pad, a pad 21 can be added at the end of the two to reduce the punching action. To improve the stability and sealing of the outer formwork 3, the cement support is arranged at the preset splicing position of the outer formwork 3 and the beam bottom and beam opening to prevent misalignment of the splicing position of the outer formwork 3 during the reinforcing of the counter-pulling bolt 81. The cement support is arranged densely at the corners and at the preset splicing position of the insulation board 31, specifically arranged in double rows on both sides of the splicing position.

[0044] The construction support system provided by the embodiment of the utility model is configured with the non-removable outer formwork 3 of the embodiment 1, and the technical advantages thereof reduce the formwork consumption in the pouring of the thermal insulation concrete member, simplify the construction process, and promote the maturity and scale of the integrated construction of the building thermal insulation structure. In addition, the construction support system adopts the mature counter-pulling reinforcing structure of "primary and secondary ribs + counter-pulling bolts", and then ties the outer formwork through the tie structure and the floor formwork of the building main structure to double fix the outer formwork, thereby further reducing the risk of formwork rising.

[0045] The above merely describes preferred specific embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent transformation using the content of the present application specification shall fall within the protection scope of the present application.

Claims

1. A removable formwork for insulating a concrete structure, characterized in that; The outdoor side of the concrete member to be cast is provided with the removable external formwork; the removable external formwork comprises a plurality of insulation boards, anchoring members and Z-shaped connecting members; The anchoring members are arranged at intervals in the plane of the insulation boards; the inner ends of the anchoring members extend out of the inner side surface of the insulation boards to form anchoring segments; the outer ends of the anchoring members are positioned in limited cooperation with the insulation boards in the direction close to the anchoring segments; The Z-shaped connecting members are used to splice the plurality of insulation boards; at the splicing points, at least two Z-shaped connecting members are arranged in a bidirectional staggered manner along the joints of the insulation boards; the middle segments of the Z-shaped connecting members are embedded in the limiting grooves pre-set in the edges of the insulation boards, and the two sides are fixed on the insulation boards; the limiting grooves match the cross sections of the middle segments of the two Z-shaped connecting members in size.

2. A removable formwork for a concrete structure according to claim 1, wherein: The anchoring segments of the anchoring members are provided with radial limiting portions.

3. A removable formwork for a concrete structure according to claim 1, wherein: The insulation boards are ASG inorganic composite insulation boards.

4. A removable formwork for a concrete structure according to claim 1, wherein: The arrangement density of the splicing points of the Z-shaped connecting members is not less than 0.5 per square meter.

5. A removable formwork for a concrete structure according to claim 1, wherein: The top of the removable external formwork is higher than the floor surface by not less than 150 mm.

6. A removable formwork for a concrete structure according to claim 1, wherein: The anchoring members are arranged in a plum blossom shape.

7. A construction bracing system for insulating concrete members, comprising a removable formwork for insulating concrete members according to any one of claims 1 to 6, characterized in that: Further comprising an internal formwork and a reinforcing system; The internal formwork is arranged on the indoor side of the concrete member to be cast, opposite to the removable external formwork; the reinforcing system is used to reinforce the internal formwork and the removable external formwork on both sides.

8. A formwork system for the construction of a concrete element according to claim 7, characterised in that: The reinforcing system comprises a tension-reinforcing structure; the tension-reinforcing structure comprises two reinforcing frames composed of a plurality of orthogonal lath strips, and a tension-reinforcing connecting member arranged between the two reinforcing frames.

9. A formwork system for the construction of a concrete element according to claim 8, characterised in that: The reinforcing system further comprises a tie structure; the tie structure comprises a plurality of flexible connecting members, which tie the top of the reinforcing frame on the outer side to the floor bottom formwork.

10. A formwork system for the construction of a concrete element according to claim 7, characterised in that: Further comprising an internal support module; the internal support module comprises a plurality of rigid connecting members arranged between the internal formwork and the removable external formwork.

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