A formwork support device for frame columns

Abstract

The present invention relates to a formwork support device for frame columns. The support device includes vertically arranged columns, fasteners, formwork, connecting plates, wooden squares, and keels. By arranging columns on the outside and providing connectors with pin pieces and pin holes on the columns, the column formwork support system is changed from the traditional "top-pull (clamp) fixation" to "two-way clamping fixation". The transparent formwork of the present invention realizes the visualization of concrete pouring, realizes the hole-free reinforcement of concrete column formwork, the wooden square formwork ensures the tight joint of the corners of the concrete column, and the integral support of the formwork in the beam-column core area; the present invention is convenient for construction, has strong operability, is applicable to the installation and reinforcement of structural column formwork, especially applicable to the installation and reinforcement of formwork for imitation fair-faced concrete columns, can effectively ensure the concrete forming quality, and reduce the workload of subsequent interface treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated building fittings, and specifically to a formwork support device for frame columns. Background Art

[0002] With the continuous development of design level and construction technology, modern buildings have gradually developed towards the direction of "high, precise, and sophisticated". More and more super high-rise buildings have sprung up, and structural systems such as frame structures and core tube-shear wall structures have become the mainstream structural forms in today's architecture. This structure has advantages such as high compressive strength and large flexural stiffness. However, in actual construction, problems such as "low compactness at the root of frame columns, poor joint tightness of column corner formwork, difficult fixation of beam-column joint formwork, and poor forming quality" are prone to occur. This series of quality problems not only affect the appearance performance of structural construction but also reduce the seismic design concepts such as "strong column roots and strong joints and weak members" in structural design, affecting the safety performance of the structure. According to the actual construction requirements, this project has developed a formwork support system for frame columns, solving the problem of difficult control of concrete forming quality. Summary of the Invention

[0003] In view of the above existing problems such as low compactness at the root of frame columns, poor joint tightness of column corner formwork, difficult fixation of beam-column joint formwork, and poor forming quality, the present invention provides a formwork support device for frame columns.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] A formwork support device for frame columns, the support device includes a vertically arranged column, fasteners, formwork, connecting plates, wooden squares, and keels. One end of each fastener is provided with a plurality of slot I, and the other end is provided with a hook. Two fasteners are vertically connected end to end by the hooks to form a square. At the top corners connected by the two fasteners, they are fixedly connected to the column through the connecting plates. The wooden squares and keels are arranged between the fasteners and the formwork, and the inner side of the wooden squares is fixedly connected to the formwork;

[0006] The connecting plate has two perpendicular extended ends, in an L shape. One of the extended ends has two symmetrically arranged pin pieces, and the other extended end is provided with a pin hole. The pin pieces pass through the slot I on one of the fasteners and are clamped on both sides of the other fastener. A limit card is provided in the pin hole, pressing against one side of the fastener provided with the slot I;

[0007] The formwork includes a transparent formwork, a nailed formwork, and an embedded formwork. The transparent formwork is arranged at the root of the column and is vertically connected end to end with the nailed formwork to form a square column formwork frame; the embedded formwork is arranged in the middle of the column and is vertically connected end to end with the nailed formwork to form a square column formwork frame. A groove is provided in the column corner wooden square arranged in the middle of the column. Both ends of the embedded formwork are inserted into the groove and are fixedly attached to the groove. Both ends of the nailed formwork press against the embedded formwork and are fixedly connected to the column corner wooden square.

[0008] Furthermore, after the core area template of the beam and column is fixed to the column keel of the beam template through the perforated angle steel and the screw angle steel, the perforated angle steel and the screw angle steel are connected by screws.

[0009] Furthermore, the perforated angle steel is provided with a hole groove II which is connected end to end and inclined upward at 45°, and the screws welded on the screw angle steel on the other side can be freely inserted. After adjusting the perforated angle steel and the screw angle steel to be close to the column keel of the beam formwork, the nuts are tightened to fix them.

[0010] Furthermore, the wooden squares are fixedly connected to the template by flat-head nails.

[0011] Furthermore, the height of the transparent template is 200 mm.

[0012] Furthermore, the column is a square steel column.

[0013] Furthermore, one of the two extended ends of the connecting plate is overlapped and fixed with one end of the fastener provided with the hole groove I, and the other extended end is fitted and pressed against one side of the fastener provided with a hook.

[0014] Furthermore, the pin hole is in the shape of an elongated strip, and the pin hole is perpendicular to the plane where the pin piece is located.

[0015] Beneficial effects of the present invention: The present invention transforms the column form support system from the traditional "top pull (card) fixation" to "bidirectional card fixation" by arranging columns on the outside and arranging connectors with pins and pin holes on the columns. The bidirectional card fixation has the advantages of simple operation and easy quality control. As long as the columns are accurately positioned and the fasteners are firmly fixed, defects such as column surface twisting and depression can be avoided.

[0016] The present invention realizes visualization of concrete pouring through a transparent template, which can effectively prevent root rot; the present invention supports fasteners through columns, and the fasteners are connected end to end in pairs, with a hole at one end and a hook at the other end to tie with a vertical side; the column side mold wood square is pre-fixed with the template by flat nails on the inside, and the wood square is tied with the fasteners after reinforcement to ensure that the column side mold does not produce concave, thereby realizing hole-free reinforcement of the concrete column mold, and opening holes and grooves in the column foot wood square to ensure that the concrete column corner joints are tight and leak-proof;

[0017] After the beam-column formwork of the present invention is fixed to the beam side formwork keel through the perforated angle steel and the screw angle steel, the perforated angle steel and the screw angle steel are connected by screws, and the perforated angle steel is provided with a hole groove connected end to end at a 45° angle, so as to ensure that the screws welded on the angle steel on the other side can be freely inserted, and the angle steels on both sides are adjusted to be close to the side formwork keel and then tightened with nuts to fix, thereby completing the integration of the beam-column formwork support system and ensuring the integral support of the core area formwork support;

[0018] The present invention is applicable to the formwork support of frame columns, which can prevent cross-section distortion, solve quality problems such as mortar leakage and honeycombing at column corners and column roots, and ensure the integrity of the formwork support system in the beam-column core area.

[0019] The invention is convenient for construction and has strong operability. It is applicable to the installation and reinforcement of formwork for structural columns, especially suitable for the installation and reinforcement of formwork for columns imitating fair-faced concrete structures, which can effectively guarantee the quality of concrete forming and reduce the workload of subsequent interface treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Structural diagram of formwork support in the column;

[0021] Figure 2 Structural diagram of formwork support at the column root;

[0022] Figure 3 Structural diagram of formwork support in the beam-column core area;

[0023] Figure 4 Figure 3 The shown sectional view of 1-1;

[0024] Figure 5 Elevation view of joint 1;

[0025] Figure 6 Structural diagram of the column connecting plate;

[0026] Reference numerals: 1, fastener; 2, column; 3, keel; 4, wooden square; 5, flat head nail; 6, column foot wooden square; 7, nailed formwork; 8, embedded formwork; 9, transparent formwork; 10, pin piece; 11, limit card; 12, connecting plate; 13, beam; 14, beam keel; 15, perforated angle steel; 16, screw angle steel; 17, beam formwork; 18, column keel; 19, column; 20, screw; 21, additional wooden square.

[0027] 101, slot I; 601, groove of column foot wooden square; 801, formwork boundary line; 1201, pin hole; 1501, slot II. DETAILED DESCRIPTION OF THE INVENTION

[0028] The following further elaborates on the present invention in combination with specific embodiments.

[0029] As shown in the figure, a formwork support device for a frame column, the support device includes a vertical square steel column (2), a fastener (1), a formwork, a connecting plate (12), a wooden square (4) and a keel (5). One end of the fastener (1) is provided with a plurality of slot I (101), and the other end is provided with a hook. Two of them are vertically connected end to end by the hook to form a square. At the vertex angle where two fasteners (1) are connected, it is fixedly connected to the column (2) through the connecting plate (12). The wooden square (4) and the keel (5) are arranged between the fastener (1) and the formwork. The inner side of the wooden square (4) is fixedly connected to the formwork by flat head nails (5);

[0030] The connecting plate (12) has two perpendicular extended ends, in an L shape. One of the extended ends has two symmetrically arranged pin pieces (10), and the other extended end is provided with a pin hole (1201). The pin hole (1201) is in a long strip shape, and the pin hole (1201) is perpendicular to the plane where the pin pieces (10) are located. The pin pieces (10) pass through the slot I (101) on one of the fasteners (1) and are clamped on both sides of the other fastener (1). A limit card (11) is arranged in the pin hole (1201), and it presses against one side of the fastener (1) provided with the slot I (101); One of the two extended ends of the connecting plate (12) coincides and is fixed with one end of the fastener (1) provided with the slot I (101), and the other extended end fits and presses against one side of the fastener (1) provided with a hook.

[0031] The formwork includes a transparent formwork (9), a nailed formwork (7) and an embedded formwork (8). A transparent formwork (9) with a height of 200 mm is arranged at the root of the column (2), and is vertically connected end to end with the nailed formwork (7) to form a square column formwork frame; The embedded formwork (8) is arranged in the middle of the column (2), and is vertically connected end to end with the nailed formwork (7) to form a square column formwork frame. The column corner wooden square (6) arranged in the middle of the column (2) is provided with a groove. Both ends of the embedded formwork (8) are inserted into the groove and are fixedly connected with the groove. Both ends of the nailed formwork (7) press against the embedded formwork (8) and are fixedly connected with the column corner wooden square (6);

[0032] After the formwork of the beam-column core area is fixed to the column keel (18) of the beam formwork (17) through the perforated angle steel (15) and the screw angle steel (16), the perforated angle steel (15) and the screw angle steel (16) are connected by a screw (20); The perforated angle steel (15) is provided with slot II (1501) that is connected end to end at a 45° upward slope. The screw welded on the other side of the screw angle steel can be freely inserted. After adjusting the perforated angle steel (15) and the screw angle steel (16) to be close to the column keel (18) of the beam formwork (17), the nut is tightened for fixation.

[0033] In the present invention, by setting a square steel column welded with a connecting plate with pin pieces and pin holes as the vertical support structure, the double-sided pin pieces can prevent the fasteners from moving outwards due to excessive lateral force of the formwork or concave inward due to insecure support of the top formwork rods. The double-sided pin pieces can ensure that the fasteners are closely attached and the column corners are square, preventing cross-section distortion;

[0034] Setting a 200-mm-high transparent formwork at the column root can achieve visualization of concrete pouring and prevent root rot. The column corner wooden squares are processed with grooves and chamfers to prevent mortar leakage at the column corners. Open-hole angle steels and screw angle steels are arranged in the beam-column core area and fixed to the square tube keels on the side formwork of the beam respectively, and then connected and fixed by screws to ensure the integrity of the formwork in the beam-column core area.

[0035] As Figure 1 shown, for the column support fasteners, the fasteners are vertically connected end to end in pairs. One end of the fastener is provided with an opening, and the other end is provided with a hook for tying to the vertical side. The wooden square on the side formwork of the column is pre-fixed to the formwork with flat-head nails on the inner side. After reinforcement, the wooden square is tied to the fastener to ensure that the side formwork of the column does not concave inward. Figure 1 Grooving and chamfering the column corner wooden squares in the middle column can ensure tight joints at the column corners without mortar leakage. As Figure 5 shown, the pin pieces can ensure that the fasteners do not move left and right, and the limit cards can ensure that the fasteners do not move back and forth. Furthermore, the fasteners in two directions at the column corner can be ensured to be perpendicular, guaranteeing the squareness of the column corner. As Figure 3 、 Figure 4 shown, after the beam-column formwork is fixed to the square steel keel on the side formwork of the beam through the open-hole angle steel and the screw angle steel, the open-hole angle steel and the screw angle steel are connected by screws. The open-hole angle steel is provided with a plurality of 45° obliquely upward holes connected end to end, which can ensure that the screws welded on the other side angle steel can be freely inserted. After adjusting the two side angle steels to be close to the side formwork keel, the nuts are tightened and fixed, thereby completing the integration of the beam-column formwork support system and ensuring the integrity of the formwork support in the core area.

[0036] The present invention mainly has the following advantages and characteristics: "The transparent formwork realizes visualization of concrete pouring", "Realizes hole-free reinforcement of concrete column formwork", "The wooden square formwork ensures tight joints at the corners of concrete columns", "Integral support for the formwork in the beam-column core area", etc. By setting square steel columns on the outside and setting connectors with pin pieces and pin holes on the columns, the column formwork support system is changed from the traditional "top-pull (clamp) fixation" to "two-way clamping fixation". This two-way clamping fixation has the advantages of simple operation and easy quality control. As long as the columns are accurately positioned and the fasteners are firmly fixed, defects such as column surface torsion and depression can be avoided.

[0037] The present invention is convenient for construction and has strong operability. It is applicable to the installation and reinforcement of structural column formwork, especially suitable for the installation and reinforcement of formwork for imitation fair-faced concrete columns, can effectively guarantee the concrete forming quality, and reduce the workload of subsequent interface treatment.

Claims

1. A formwork support device for frame columns, characterized in that: The supporting device includes a vertically arranged column (2), a fastener (1), a formwork, a connecting plate (12), a wooden square (4) and a keel (3). One end of the fastener (1) is provided with a plurality of slot I (101), and the other end is provided with a hook. The two are vertically connected end to end in pairs to form a square. At the vertex angle where the two fasteners (1) are connected, it is fixedly connected to the column (2) through the connecting plate (12). The wooden square (4) and the keel (3) are arranged between the fastener (1) and the formwork, and the inner side of the wooden square (4) is fixedly connected to the formwork. The connecting plate (12) has two perpendicular extended ends, in an L shape. One of the extended ends has two symmetrically arranged pin pieces (10), and the other extended end is provided with a pin hole (1201). The pin pieces (10) pass through the slot I (101) on one of the fasteners (1) and are clamped on both sides of the other fastener (1). A limit card (11) is arranged in the pin hole (1201) and tightly abuts against one side of the fastener (1) provided with the slot I (101). The formwork includes a transparent formwork (9), a nailed formwork (7) and an embedded formwork (8). The transparent formwork (9) is arranged at the root of the column (2) and is vertically connected end to end with the nailed formwork (7) to form a square column formwork frame; the embedded formwork (8) is arranged in the middle of the column (2) and is vertically connected end to end with the nailed formwork (7) to form a square column formwork frame. Grooves are provided on the surfaces of the four column corner wooden squares (6) inside the enclosed space of the four columns (2). Both ends of the embedded formwork (8) are inserted into the grooves and are fixedly attached to the grooves. Both ends of the nailed formwork (7) tightly abut against the embedded formwork (8) and are fixedly connected to the column corner wooden square (6).

2. The formwork support device for frame columns according to claim 1, characterized in that: After the formwork of the beam-column core area is fixed to the column keel (18) of the beam formwork (17) through the perforated angle steel (15) and the screw angle steel (16), the perforated angle steel (15) and the screw angle steel (16) are connected through a screw (20).

3. The formwork support device for frame columns according to claim 2, characterized in that: The perforated angle steel (15) is provided with slot II (1501) that is obliquely upward at 45° and connected end to end. The screw welded on the other side of the screw angle steel can be freely inserted. After adjusting the perforated angle steel (15) and the screw angle steel (16) to be tightly attached to the column keel (18) of the beam formwork (17), the nut is tightened for fixation.

4. The formwork support device for frame columns according to claim 1, characterized in that: The wooden square (4) is fixedly connected to the formwork by flat head nails (5).

5. The formwork support device for frame columns according to claim 1, characterized in that: The height of the transparent formwork (9) is 200 mm.

6. The formwork support device for frame columns according to claim 1, characterized in that: The column (2) is a square steel column.

7. The formwork support device for frame columns according to claim 1, characterized in that: For the two extended ends of the connecting plate (12), one extended end coincides and is fixed with one end of the fastener (1) provided with the slot I (101), and the other extended end tightly abuts against one side of the fastener (1) provided with a hook.

8. The formwork support device for frame columns according to claim 1, characterized in that: The pin hole (1201) is in a strip shape, and the pin hole (1201) is perpendicular to the plane where the pin pieces (10) are located.

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