CN112144865A - Early-dismantling formwork support system - Google Patents

Abstract

The invention discloses an early-dismantling formwork support system, which comprises a top plate formwork support system and a beam formwork support system; the top plate template support system comprises a plurality of top plate templates, a plate strip is arranged between every two adjacent top plate templates, the bottom of each top plate template is connected with a first batten horizontally arranged, the first batten is connected with a second batten horizontally arranged, the first batten is perpendicular to the second batten, an early-dismantling head is arranged at the bottom of the plate strip, and the bottom end of the early-dismantling head is connected with the top end of the early-dismantling support. The early-dismantling formwork support system provided by the invention has the advantages that the stability of the formwork support system is ensured by adding the support points, the support and the dismantling are fast, the intermediate stacking link of turnover materials is avoided, the turnover of the materials is accelerated, the material consumption is further reduced, and the investment cost is reduced.

Description

An early dismantling formwork support system

technical field

The invention relates to the technical field of construction equipment, in particular to an early dismantling formwork support system.

Background technique

In the prior art, during the construction of beam and roof formwork, the installation process is complicated, inconvenient and time-consuming. After the beams and roof slabs are poured, the roof formwork and support components need to be removed at the same time. The formwork and support components have a large investment, and the turnover rate is low, which increases the construction cost.

According to the current "Construction Quality Acceptance Specification for Concrete Structure Engineering", for the cast-in-place floor with a span of ≤2m, the concrete strength can be reduced by 25% compared with the demolition strength of the cast-in-place floor with a span of >2m and ≤8m, which is 50% of the design strength. % can be demolded. In order to solve the above problems, through the reasonable support of the formwork, the larger span of the floor can be reduced by increasing the supporting points (pillars) and reducing the span of the floor (≤2m), which can achieve the "early dismantling of the formwork and the latter dismantling the pillars". "In order to speed up the turnover of beam-plate keels and formwork, the one-time configuration of formwork can be reduced by 1/3 to 1/2.

SUMMARY OF THE INVENTION

In view of the above-mentioned technical problems in the related art, the present invention proposes an early dismantling formwork support system, which can overcome the above-mentioned shortcomings of the prior art.

For realizing the above-mentioned technical purpose, the technical scheme of the present invention is realized like this:

An early dismantling formwork support system includes a roof formwork support system and a beam formwork support system; the roof formwork support system includes a plurality of roof formworks, and a strip (with a width of 280mm) is arranged between two adjacent roof formworks. , the bottom of the top plate formwork is connected with the horizontally arranged wooden square one, the wooden square one is connected with the horizontally arranged wooden square two, the wooden square one is perpendicular to the wooden square two, and the bottom of the plate belt is provided with Dismantling the head, the bottom end of the early dismantling head is connected with the top end of the early dismantling support; the beam formwork support system includes a beam bottom formwork and a beam side formwork, and the bottom ends of the beam side formwork are respectively connected with the bottom ends of the beam bottom formwork. The two ends are connected, the outer side of the beam side formwork is connected with the horizontally arranged beam side wood square 1, the beam side wood square 1 is connected with the vertical beam side wood square 2, and the middle part of the beam bottom formwork is connected with the beam The bottom wooden square one is connected, the two sides of the beam bottom formwork are respectively connected with the beam bottom wooden square two, the bottom of the beam bottom wooden square one is connected with the beam bottom support, and the bottom of the beam bottom wooden square two is arranged horizontally. The first steel pipe is connected, the first steel pipe is connected with the upper part of the bowl buckle support one, the top of the bowl buckle support one is provided with a U bracket one, and the U bracket one is connected with the wooden square two.

Further, a dunnage is arranged between the bottom end of the early dismantling support and the concrete floor surface.

Further, the first steel pipe is connected with the second wooden square through the diagonal brace.

Further, tension bolts are provided between the beam side wooden squares on both sides of the beam side formwork.

Further, the first steel pipe is connected to the second steel pipe arranged horizontally, and the first steel pipe is perpendicular to the second steel pipe.

Further, the first steel pipe is connected to the second bowl buckle support through the second U bracket.

Beneficial effects of the present invention: the early dismantling formwork support system of the present invention ensures the stability of the formwork support system by increasing the supporting points, and the support and dismantling is fast, avoiding the intermediate stacking link of turnover materials, accelerating material turnover, and reducing consumables. , reduce the input cost; the early dismantling formwork support system of the present invention is simple in structure, flexible and convenient to operate, and easy to master the construction process. duration.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of an early dismantling formwork support system according to an embodiment of the present invention;

2 is a schematic structural diagram of a beam formwork support system according to an embodiment of the present invention;

3 is a node diagram of a beam formwork support system according to an embodiment of the present invention;

Fig. 4 is the enlarged view of A place in Fig. 1;

In the picture: 1. Top plate formwork, 2. Wooden square one, 3. Wooden square two, 4. Early dismantling head, 5. Early dismantling support, 6. U support one, 7. Bowl buckle support one, 8. Skid, 9. Plate and strip, 10, Beam bottom formwork, 11, Beam side formwork, 12, Beam side wood square 1, 13, Beam side wood square 2, 14, Beam bottom wood square 1, 15, Beam bottom wood square 2, 16 , Beam bottom support, 17, steel pipe one, 18, diagonal support wood, 19, pull bolt, 20, steel pipe two, 21, U support two, 22, bowl buckle support two.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

As shown in Figures 1-4, according to the embodiment of the present invention, it includes a roof formwork support system and a beam formwork support system; the roof formwork support system includes a plurality of roof formwork 1, and the one between two adjacent roof formwork 1 There is a plate belt 9 between, the bottom of the top plate formwork 1 is connected with the horizontally arranged wooden square 1 2, the wooden square 1 2 is connected with the horizontally arranged wooden square 3, and the wooden square 1 2 is connected with the wooden square 2 3 is vertical, the bottom of the strip 9 is provided with an early dismantling head 4, and the bottom end of the early dismantling head 4 is connected with the top end of the early dismantling support 5; the beam formwork support system includes a beam bottom formwork 10 and a beam side formwork 11. The bottom ends of the beam side formwork 11 are respectively connected with the two ends of the beam bottom formwork 10, and the outer side of the beam side formwork 11 is connected with the horizontally arranged beam side wooden square 12, and the beam side wooden square One 12 is connected to the vertical beam side wooden square two 13, the middle part of the beam bottom formwork 10 is connected to the beam bottom wooden square one 14, and the two sides of the beam bottom formwork 10 are respectively connected to the beam bottom wooden square two 15 , the bottom of the beam bottom wooden square one 14 is connected with the beam bottom support 16, the bottom of the beam bottom wooden square two 15 is connected with the horizontally arranged steel pipe one 17, the steel pipe one 17 is connected with the upper part of the bowl buckle support one 7 Connection, the top of the bowl buckle support one 7 is provided with a U bracket one 6, and the U bracket one 6 is connected with the wooden square two 3.

Between the bottom end of the early dismantling support 5 and the concrete floor surface, there is a dunnage 8 , the steel pipe one 17 is connected with the wooden square 2 3 through the diagonal bracing wooden square 18 , and the beam side formwork 11 is on both sides. There is a pair of tension bolts 19 between the two wooden squares 13 on the side of the beam. The first steel pipe 17 is connected to the second steel pipe 20 arranged horizontally. The first steel pipe 17 is perpendicular to the second steel pipe 20. The second 21 is connected with the bowl buckle support second 22 .

In order to facilitate the understanding of the above-mentioned technical solutions of the present invention, the above-mentioned technical solutions of the present invention will be described in detail below through specific usage modes.

Beam formwork support system:

Both the beam bottom formwork 10 and the beam side formwork 11 are made of plywood, and the joints of the plywood are planed and straightened by hand to make hard joints. Reserve a 100mm wide sweeping opening in the middle of the beam span and block it before concrete pouring. The wood square one 2 used at the bottom of the top plate formwork is 100mm*100mm wood square. The horizontal inner corrugation of the beam side formwork adopts the beam side wood square 112, the vertical outer corrugation adopts the beam side wood square 213, and the diagonal brace wood square 18 is 50 mm * 100 mm wood square. The wooden square is planed on both sides with a pressure planer, and the spacing is not more than 300mm. The longitudinal spacing of the diagonal braces 18 is not more than 600mm. A sealing tape is attached to the root of the bottom of the beam to avoid slurry leakage. On both sides of the beam side formwork, the long square wood is fixed with 100 round nails, and then the beam side formwork is tightened with large and small head wood wedges. When the net height of the beam is greater than 800mm, the tie bolts 19 must be used for reinforcement, and PVC sleeves should be placed in the beam. After demolding, pull out the tie bolts 19 for easy turnover. According to the design requirements, the beam bottom formwork shall be arched according to 2‰～3‰ when the span is more than 4.00m, so as to avoid reducing the cross-sectional size of the beam as much as possible. Beam bottom wooden square 14 is 100mm×100mm wooden square (length 300mm, when beam height > 850mm, length 200mm). The beam bottom wooden square two 15 is placed on the steel pipe one 17, which is 100mm×100 mm wooden square (length 400-600mm). The steel pipe one 17 and the steel pipe two 20 are arranged on the beam bottom support 16 and the ordinary bowl buckle support one 7. The steel pipe one 17 is a 2￠48.3 steel pipe (length 1200mm, when the beam height > 850mm, the length is 600mm). The top of the bowl mouth support 17 (length 1500) is provided with an adjustable U bracket 1 6, and a wooden square 2 3 is arranged on the U bracket 1 6. The top of the beam bottom support 16 is provided with an adjustable U bracket, and the beam bottom wooden square 14 is arranged on the U bracket. When the beam width is less than or equal to 600mm, a row of beam bottom supports 16 with a length of 900mm shall be set at the bottom of the beam along the length of the beam; when the width of the beam is greater than 600mm, two rows of bottom supports 16 shall be set at the bottom of the beam along the length of the beam, with the spacing between the rows Not more than 600mm. Place 50mm*100mm*400mm skids 8 on the concrete floor at the support root.

Roof formwork support system:

The top plate formwork 1 is made of plywood, the wooden square 12 is 100mm*100mm as the main keel, and the wooden square 23 is 50mm*100mm square wood as the secondary keel. The plywood of the top plate formwork is connected with square wood 1 2 and wood square 2 3 with round nails below 50mm, and long round nails shall not be used to connect to avoid damage to the panel and difficulty in demoulding. When the roof span is greater than 4.0m, arching shall be carried out according to the requirements of the specification, and the arching height shall be 2‰～3‰. The top plate is arched to follow the beam, the column angle is lowered, and the middle part is raised. The top of the bowl buckle support 7 is provided with an adjustable U bracket 6. The tie rods in the horizontal direction are mainly 1.50m. When the modulus is not enough, use 1.20m, 0.90m, and 0.60m tie rods to align them. The first row of tie rods should use sweeping rods; when the roof support height is greater than 3.00m, the horizontal tie rods are not less than the upper and middle , the next three. When the vertical and horizontal clear spans of the roof formwork are greater than 2.50m, the early dismantling method shall be adopted, and the plate and belt method shall be adopted for the early dismantling system. Based on the 1.50m tie rod, the width of the wood plywood is 1220mm, the middle distance between the plates and strips is 1220+280=1500mm, the maximum distance from the beam edge skin should not exceed 2000mm, and the top of the early dismantling support 5 is provided with an early dismantling head 4 and an early dismantling head 4 A 280 mm wide strip 9 is set on top. The support root is placed on the concrete floor surface with a 50mm*100mm*400mm dunnage 8.

The dimensions mentioned above are only commonly used dimensions and can be adjusted according to the actual situation.

To sum up, with the help of the above technical solutions of the present invention, by increasing the supporting points, the stability of the formwork support system is ensured, and the dismantling is quick, avoiding the intermediate stacking link of turnover materials, accelerating material turnover, and reducing consumables. , reduce the input cost; the early dismantling formwork support system of the present invention is simple in structure, flexible and convenient to operate, and easy to master the construction process. The construction period meets the construction progress and quality requirements.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (6)

1. An early dismantling formwork support system, characterized in that it comprises a roof formwork support system and a beam formwork support system; the roof formwork support system comprises a plurality of roof formwork (1), two adjacent roof formwork (1). ) is provided with a plate belt (9), the bottom of the top plate formwork (1) is connected with the horizontally arranged wooden square one (2), and the wooden square one (2) is connected with the horizontally arranged wooden square two (3) Connected, the wooden square one (2) is perpendicular to the wooden square two (3), the bottom of the strip (9) is provided with an early dismantling head (4), and the bottom end of the early dismantling head (4) is connected to the early dismantling head (4). The top end of the dismantling support (5) is connected; the beam formwork support system includes a beam bottom formwork (10) and a beam side formwork (11), and the bottom ends of the beam side formwork (11) are respectively connected with the beam bottom formwork (10). ), the outer side of the beam side formwork (11) is connected with the horizontally arranged beam side wood square 1 (12), and the beam side wood square 1 (12) is connected with the vertical beam side wood square 2 (13) Connection, the middle part of the beam bottom formwork (10) is connected with the beam bottom wooden square one (14), and the two sides of the beam bottom formwork (10) are respectively connected with the beam bottom wooden square two (15), so The bottom of the beam bottom wooden square one (14) is connected with the beam bottom support (16), the bottom of the beam bottom wooden square two (15) is connected with the horizontally arranged steel pipe one (17), the steel pipe one (17) It is connected with the upper part of the bowl buckle support one (7), the top of the bowl buckle support one (7) is provided with a U bracket (6), and the U bracket (6) is connected with the wooden square two (3). . 2 . The early dismantling formwork support system according to claim 1 , wherein a dunnage ( 8 ) is arranged between the bottom end of the early dismantling support ( 5 ) and the concrete floor surface. 3 . 3 . The early dismantling formwork support system according to claim 1 , wherein the first steel pipe ( 17 ) is connected with the second wooden square ( 3 ) through a diagonal brace ( 18 ). 4 . 4 . The early dismantling formwork support system according to claim 1 , characterized in that a pair of tension bolts ( 19 ) are provided between the two beam side wooden squares ( 13 ) on both sides of the beam side formwork ( 11 ). 5 . 5. The early dismantling formwork support system according to claim 1, wherein the first steel pipe (17) is connected with the second steel pipe (20) arranged horizontally, and the first steel pipe (17) is connected with the second steel pipe (20). 20) Vertical. 6 . The early dismantling formwork support system according to claim 1 , wherein the first steel pipe ( 17 ) is connected to the second bowl buckle support ( 22 ) through the second U bracket ( 21 ). 7 .

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