KR20010092469A - Method of forming concrete floors - Google Patents

Abstract

A method of forming a concrete floor of a building comprising coupling a plurality of columns 12 to a plurality of foam support shoring jacks 10 of a building and supporting a foam over the shore jack 10. The height of the foam is obtained by adjusting each of the shoring jacks to the desired area of the upper forming surface 4 of the foam. Concrete 19 is poured onto the foam upper surface and cured to a predetermined degree. The foam comes off the concrete.

Description

Method of forming concrete floors

Various methods have been used to form concrete floors in multi-storey buildings. Often the formation of concrete floors is supported by scaffolding assembled under the floor or by a system of truss raised from the lower floor. Thus, the new floor cannot be installed until the concrete of the lower floor, which is designed to support the slabs above, is sufficiently cured to support the weight of the scaffold or truss, in addition to the weight of the upper floor. This generally requires 100% curing of the bottom floor. Also scaffolding or other post-shore support is needed on one or more floors lower than the floor just below the pouring floor, and thus on the floor until the support is removed. Prevent execution of other tasks from trade. Moreover, each floor should generally be thicker to support during construction of the load of the upper floor. Thicker floors therefore require thicker columns that must carry a thicker floor load. Each of these factors tends to increase the time and cost of construction and reduce the useful space in the building.

The present invention relates generally to a method of forming concrete, and more particularly to a method of forming a concrete floor in a multi-storey building.

1 shows a side view of a flying foam for using the method according to the first aspect of the invention supported between columns of a building.

FIG. 2 shows a top view of the flying foam of FIG. 1 located between the columns of the building. FIG.

3 shows a side view of the shoring jack for supporting the flying foam of FIG. 1.

4 shows another shoring jack for supporting the flying foam of FIG. 1.

5 shows a cross-sectional view of a column of a building with forming pins passing through two tapered holes received therethrough.

FIG. 6 shows a side view of a tapered forming pin penetrating the hole shown in FIG. 5.

7 shows a cross-sectional view of a column of a building with a shoring jack support anchor fixed in the column.

8 shows a schematic view of the shoring jack anchoring anchor of FIG. 7.

FIG. 9 shows a bracket and a fixing plate for securing to a column shoring jack supporting a flying foam. FIG.

FIG. 10 shows a schematic view of a support clip for a shoring jack paired with the bracket of FIG. 9.

FIG. 11 shows a front view of the shoring jack of FIG. 10 secured on the bracket of FIG.

12 shows a side view of the bracket shouldering jack of FIG. 11.

Figure 13 shows a side view of a foam pulling mechanism for the method of joining with the method according to the invention.

14 shows a side view of the foam pulling mechanism in the position paired with the flying foam.

FIG. 15 shows a foam with a bulkhead defining the outer periphery of the poured floor as shown in FIG. 1.

FIG. 16 shows a foam for generating a drop beam or a spandrel beam.

(details)

As shown in FIG. 1, the flying form 1 used in the present invention comprises a truss 2 for supporting an upper surface 4 on which a number of stringers 6 are mounted. . Truss 2 is equipped with dependent I-beams, supported by a number of flying form shoring jacks 10, and the truss has a column 12 of the building. It is installed.

As shown in FIG. 2, the thickness of form 1, W, is separated between columns 12 so that when flying foam 1 is supported on the shoring jack 10, the upper surface 4 including plywood 16 covers the space between columns 12, It should be chosen substantially the same. A snug fit between the thickness W of form 1 and the spacing of column 12 also serves to prevent the falling off of the shoring jack 10 after form 1 is placed thereon. The plywood 16 is equipped with a number of strainers 6 mounted on a nailer 17 that is bolted to truss 2. A series of filter joists 14 extend between adjacent foams 1 depending on the exposed area of the nailer 17, and plywood filler strips 18 create a substantially continuous forming surface between the foams 1 To be mounted on top of the pillar joist 14. The shoring jack 10 then adjusts the plywood filler strip 18 horizontally to a height corresponding to the bottom surface of floor 19 while simultaneously leveling the top surface of plywood 16. These make it possible to create a single surface when pouring concrete. After pouring floor 19 and curing it to adequately support its own load, Form 1 is lowered from floor 19 and then removed. It is understood that the techniques required for carrying out the present invention can be done when the concrete is about 65-75%, and more preferably the concrete has been cured at least about 67%.

As shown in FIG. 3, the primary shoring jack 10 used in the present invention is a bracket 20 having a bolt hole 22 that can be joined with an anchoring bolt therein when the shoring jack is fixed to column 12. (bracket). When the shoring jack 10 is mounted to column 12, each shoring jack 10 supports column 12 with a supporting rod 26 extending vertically upwards from bracket 20. The cap 28 is fitted in a corresponding recess 30 formed in the upper surface of the supporting rod 26 with a washer 32 sandwiched therebetween. In addition, the roller 34 is equipped with a bracket 20 with an axis of rotation of the roller 34 extending substantially perpendicularly from the surface of the column 12. The supporting rod 26 raises the supporting rod 26 and the cap 28 associated with the Shoring Jacks 10 and 10 'by the first direction rotation of the supporting rod 26 relative to the Shoring Jacks 10 and 10', and the supporting rod by the second direction rotation. The shoring jacks 10 and 10 'are threaded to lower the 26 and the cap 28. When the supporting rod 26 is lowered to the lowest position, the cap 28 is positioned under the roller 34 and the foam 1 is supported by the roller 34.

As shown in FIG. 4, the optional shoring jack 10 'includes rollers 34 and 34' with Form 1 underneath. In particular, by lowering all the supporting rods 26 so that special form 1 can be held in the lowest position, the foam pulling mechanism is described in detail with reference to FIGS. Can be rolled from the machining position.

As shown in FIG. 5, the shoring jacks 10, 10 'are formed in column 12 by tapered pins 42 which are sufficiently inclined before being poured into the place where the shoring jacks 10 and 10' of the column are attached. Mounted in column 12 by means of holes 40. The technique required for the practice of the present invention is that pin 42 is made inclined as shown in FIGS. 5 and 6 and such pin 42 can be more easily removed from column 12 by impacting the smaller diameter end 44. It can be understood that the pin 42 can be pushed out of the hole 40. Then, the fixing bolt 52 which connects the shore jacks 10 and 10 'to the column 12 is connected to the shore jacks 10 and 10' through the hole 40. Optionally, as shown in FIGS. 7 and 8, when it is not appropriate or limited to make holes in the column, the shoring jacks mounted on the bracket 50 are placed between the columns 12 during pouring and the column 12 is When cured, the bracket 50 is positioned where the shoring jacks 10, 10 'are fitted with holes 54 that accept the bolts exposed to the outside of column 12. Of course, it is understood that the technique required for carrying out the present invention is that the hole 54 receiving the bolt can be expanded from the surface of column 12, or it can be concave so that the hole is open out of column 12. do. These brackets can be used where the holes in the column are restricted or not allowed.

9-12 show alternative arrangements for mounting the shore jacks 10, 10 'to column 12. FIGS. In particular, the mounting plate 62 has two bolt holes 64 and a slot 66 for receiving the bracket. When assembled in a valid configuration, the bracket 60 slides through the slot 66 which receives the bracket and comes into contact with the end of the surface of the end 68 mounting plate 62 of the bracket. Furthermore, the fixing bolt 52 extends through the column 12 to the mounting plate and the bracket 60 of the column 12. The shim chip 70 is then bolted through the bolt hole 72 to the shoring jack 10 or 10 ', which is such that the clip 78 holds the shoring jack 10 in the longitudinal position and the racket 60 (racket) Slides into bracket 60 and slot 74 formed on shim chip while the set screw 76 engages the shim chip / shoring jack assembly. To the bracket 60. This arrangement allows the shoring jacks 10, 10 'to be located at a predetermined distance from column 12. It is understood that the technology required for the practice of the present invention is that the assembly of the shim chip supports the user of the flying forms to ensure that the flying forms are efficient and safe even if the space between any adjacent columns changes in accordance with the present invention. For example, the shim chip 70 may mount the shore jack 10 in a concave column relative to another column on a particular line to further extend the shore jack from the concave column in which the shore jack 10 is mounted and arranged. It is also possible, for example, to directly extend a column free of concave portions on board by an I-beam 8 properly supported by the shoring jack 10.

13 and 14 show the form pulling mechanism 80 used to remove form 1 when concrete hardening is done in the desired amount. Initially, the supporting rods 26 of all the shoring jacks 10 and 10 '(shoring jack) are lowered until the I-beam 8 depends on the roller 34. Thereafter, the foam pulling mechanism 80 is immediately placed on the end 84 of the floor 19 'under the foam 1 to be removed with the anchor bar 82 received over the end 84. Mechanism 80 also includes support 86 extending from anchor bar 82 to handle 88 and winch 92 raised to the junction of bandles 88 and support 86. In addition, the roller 90 is mounted on both ends of the support 86 and the anchor bar 82. As shown in FIG. 14, when in the operating position, anchor bar 82 falls around end 84 of floor 19 'with cable 94 from winch 92 extending to first end 1' of foam 1. Winch 92 retracts cable 94 and pulls Form 1 across roller 34 towards foam pulling mechanism 80. As the second end 1 "of Form 1 moves past the end of the building, Form 1 is attached to the crane (not shown) by cable 96 so that Form 1 can be lifted and moved to the next desired position.

Of course, those skilled in the art will note that the form 1 is changed to achieve the desired shape of the exterior perimeter for floor 19, or as described below with respect to FIG. It will be appreciated that the bulkhead is located along Form 1. For example, to make floor 19 with a curved outer circumferential surface, Form 1 is formed with the corner forming portion of this curved outer circumferential portion. In addition, if it is desired to make an angular floor (as in a parking garage ramp), this is achieved by simply adjusting the height of the various supporting rods 26 to position Form 1 at the desired angle. In addition, those skilled in the art are those skilled in the art that cantilevered floors are made by simply selecting Form 1 to a length that extends beyond the lower floor 19 ', or the entire Form 1, for example, It will be understood that it is cantilevered by relying on Form 1 in the underslung I-beam 8 extending from the interior of the other Form 1 raised between the outer pair and the inner row of column 12.

FIG. 15 shows a partition located by braces extending along Form 1 to define any desired perimeter of Floor 19 while the rest of Form 1 acts as sidewalk 116 with guardrail 118 erected around it. Show Form 1 with 112.

FIG. 16 shows a flying foam 100 designed to make a drop beam 102 or a spandrel beam. Form 100 includes the first steel beam 104 dependent and is supported by the shoring jack 10 with the second steel beam 106 paired with the upper surface portion of the first steel beam 104 by an angle brace 105. In particular, the first steel beam extends beyond the outer end 106 ′ of the second steel beam 106. The joist 108 of foam 100, which depends on the upper surface portion of the second steel beam 106 and the upper surface portion of the first steel beam 104 extending beyond the distal end 106 ', is formed as supported by the second steel beam 106 as in foam 1 Support the plywood forming surface 110 with the first portion 110 'of the forming surface 110 beyond the extended portion of the first steel beam 104 with a predetermined distance lower than the second portion 110 "of the surface 110". Those skilled in the art will appreciate that the distance that the first portion of the forming surface 110 'rises beyond the second portion of the forming surface 110 "is substantially equal to the thickness of the beam 104. The actual vertical bulkhead 112 (substantially vertical bulkhead) is a predetermined distance from the end of the second part 110 "of the forming surface 110 with the distance between the partition 112 and the end of the second part 110" substantially equal to the desired thickness of the drop or fastening beam 102. Is built in. The partition is a wedge (or 2) of plywood 114 raised on the first portion 110 'of the forming surface 110 with the portion of the first portion 110' extending beyond the plywood wedge 114 forming the sidewalk 116 as shown in FIG. Dimension plate such as X 4s). Guard rail 118 is provided at the end of the first portion 110 'of the forming surface 110 ".

Those skilled in the art will appreciate that the process of raising and removing the flying foam 100 allows the second portion 110 "of the forming surface 110 to sharpen the floor of the drop or fastening beam 102 when the foam 110 is in the operating position. Of the supporting foam 26, except that the supporting rod 26 should be further extended upon removal to be lowered by a sufficient amount (e.g. greater than the vertical distance between the first and second portions 110 'and 110 "of the forming surface 110). It will be understood that it is substantially the same as that.

The method of forming a concrete floor in accordance with the present invention is the footing of a building after the foam for column 12 is prepared with pins 42 erected at each position where sore 10, 10 'is mated to column 12. Start by forming and pouring. Column 12 is poured, and when column 12 is equipped, pin 42 is removed and the shore jack 10 or 10 'is anchored to column 12 by anchoring bolts 52 passed through the holes left by pin 42. The height of the supporting rod 26 is then adjusted to the desired level.

However, each flying foam 1 or 100 places two pre-drilled I-beams 8 in the ground in parallel, respectively, and truss 2 with their anchoring holes aligned with each other. 8 and combined by bolting truss 2 to I-beam 8 and bolting nailer 17 to truss 2. The stringer 16 is nailed to the nailer 17 and the plywood sheet 16 is nailed to the stringer 16 and the completed foam 1 or 100 is raised to a position dependent on the shoring jacks 10, 10 '.

The supporting rod 26 and the cap 28 are readjusted to the correct position by rotating the adjusting screw 27 and the filler joist 14 is nailed to the exposed portion of the nailer 17 of the adjacent foam 1 or 100. Then, the filler strip 18 is nailed to the filler joist 14, and if necessary, the partition 112 is erected after the reinforcement steel, water pipes, electricity is erected and concrete is poured.

Column 12 is formed and poured on the newly poured floor 19 and the process of laying the flying foams 1, 100 and pouring the floor 19 is repeated for the floor. When the concrete has been sufficiently examined, the adjusting screw 27 is turned to the lower supporting rod 26 with a wrench until the foams 1 and 100 depend on the roller 34. Flying foams 1, 100 are pushed into the building or pulled using the foam pulling mechanism 80 and the cable is pulled to form the cranes and foams 1, 100 to form the foams 1, 100 onto the next floor they form and rely on the newly established shore jack 10, 100 Is attached between 100.

The foregoing embodiments are exemplary in nature and are not intended to be limiting. There are many alternatives and variations of this method that will be apparent to those skilled in the art. Such modifications are considered to be included within the scope limited only by the content of the invention, the claims appended hereto.

The present invention consists of coupling a plurality of first form supporting shoring jacks with a plurality of first columns of a building and supporting the first form on the first shoring jack. The present invention relates to a method for forming a concrete floor in a building. The height of the first foam is then modified by each first shoring jack to achieve the desired position of the upper forming surface of the first foam, and the concrete is poured into the upper forming surface of the first foam and cured for a predetermined time. do. Thus the first foam falls down from the cured concrete.

Claims (18)

Coupling a plurality of first forms supported on the shoring jack to the first plurality of columns of the building; Support the first form on the first shoring jack; Adjust the height of the first foam to each first shoring jack to obtain the desired portion of the upper forming surface of the first foam; Pouring concrete on the upper forming surface of the first form; Allow concrete to cure as desired; And dropping the first foam from the concrete after the concrete is cured to the desired degree. The method of claim 1, further comprising: coupling a plurality of second forms supported on the shoring jack to a second plurality of columns of the building; Support the second form over the second shoring jack; Adjust the height of the second foam to each second shoring jack to obtain the desired portion of the upper forming surface of the second foam; Pouring concrete to the upper forming surface of the first form, including pouring the concrete onto the upper forming surface of the second form; And dropping the second foam from the cured concrete after the concrete has been cured to the desired degree. 3. The first and second plurality of columns of claim 2, wherein the first plurality of columns and the second plurality of columns generally have at least one column, and when supported on the first and second shoring jacks respectively, the first and second forms are each one. At least one filler strip across the gap to be positioned adjacent to each other so as to be separated by an approximate gap in column thickness and to form a substantially continuous surface from the top forming surface of the first foam to the top forming surface of the second foam. Method for forming a concrete floor further comprising the step of mounting The method of claim 1, further comprising placing a plurality of taper pins in the form for the first column at a position corresponding to a desired fixing point for the first shoring jack; Pouring concrete for the column; After the concrete of the column is cured to the desired level, pins are removed by forming a plurality of holes extending through the column at fixed points; A method of forming a concrete floor further comprising the step of attaching the first shoring jack to the column by means of fastening bolts passing through the hole. 5. The method of claim 4, wherein the pins are inclined and each impacts the small edges of the pins as they attempt to remove the pins from the corresponding column, thereby driving the large edges of the pins. The method of claim 1, wherein each shoring jack comprises a foam support surface and includes a mechanism capable of raising and lowering the support surface to a desired height. 7. A method according to claim 6, wherein each shoring jack comprises a roller and the foam is dependent by each roller when lowering the foam support surface of the shoring jack to the foam removal position. 8. The method of claim 7, wherein the step of removing and lowering the first foam from the concrete comprises rolling the first foam onto a roller from the building. 7. The height of the support surface of each of the shoring jacks is roughly adjusted to achieve the desired position on the upper foam surface of the first foam before the first foam is supported by the first shoring jack. The step of adjusting the height of the first foam to the first shoring jack is performed after the first foam is supported by the first shoring jack, making it possible to more precisely obtain the desired position of the upper forming surface of the first foam. How to form a concrete floor The method of claim 1, further comprising placing a partition around a predetermined portion of the first form to delimit at least one portion of the desired outer circumferential surface of the floor. 10. The method of claim 8, wherein rolling the first form from the first building is performed by a foam rolling mechanism. The method of claim 1, wherein the first foam is supported only by the column and not by the floor below the first foam. 4. The method according to claim 3, wherein the steps listed in each of the first and second forms are repeated to form at least three foams such that the entire floor of the building can be formed by only one concrete pouring. Way The method of claim 1, wherein if desired to form a cantilevered floor, the length of the first foam is selected to extend beyond the outer edge of the floor just below the floor formed by the first foam. Way The method of claim 1 wherein the top forming surface of the first foam comprises a first and a second portion having a first portion higher than the second portion. The method of claim 1 wherein the desired degree of curing of the concrete is between 65 and 75% curing. The method of claim 16, wherein the desired degree of curing of the concrete is at least about 67% curing. Forming at least one part of the vertical column of the building; Coupling a plurality of supports of at least one horizontal form to the column; Supporting at least one horizontal foam on the support; And pouring a predetermined amount of concrete onto the upper surface of the foam to form a horizontal concrete surface.