KR20040019818A - Movable Steel Form for Constructing Culvert and Continuous Constructing Method of Culvert Using the Same - Google Patents

Abstract

PURPOSE: A movable iron frame device for manufacture of a culvert and a steam acceleration curing construction method of the culvert using the movable iron frame device are provided to quicken the construction speed of the culvert and to make an outer side wall form member more strongly maintain spacing against the lateral pressure in placing concrete. CONSTITUTION: A movable iron frame device for manufacture of a culvert(300) includes an outer form device including an outer side wall form member(30) and a front and rear finish plate member(104) forming the front and rear of the culvert through combination with the outer side wall form member. The outer side wall form member is installed to the outside of a side wall part(320) of the culvert to constitute the side wall part of the culvert. A driving part driving along a rail part is formed to the outside of the outer side wall form member, to move forward and backward. The outer side wall form member forms a steam supply pipe to the outside, for the steam acceleration curing of the culvert through supply of steam after placing the culvert. The outer side wall form member is laid to the side inside in building a bottom slab(310). The lower end of the outer side wall form member is separably combined to an insert unit installed to the side of the bottom slab. An upper spacing-holding member is horizontally installed to the upper end of the outer side wall form member. Lateral reinforcing structure, to reinforce the lateral pressure given to the outside of the outer side wall form member by the placing of concrete in manufacturing the culvert, is disposed to the outer wall of the outer side wall form member. The lateral reinforcing structure comprises a reinforcing beam installed vertically, and steel wires fixed to the upper and lower ends of the outer side wall form member, to give lateral force to the inside of the outer side wall form member.

Description

Movable Steel Form for Constructing Culvert and Continuous Constructing Method of Culvert Using the Same}

The present invention relates to a portable steel formwork device for culvert production and steam-promoting curing continuous construction method of the culvert using the same, and more specifically, the steel formwork device for culvert production by disassembling, assembling and moving freely configured culvert between When the construction is completed, the steel formwork device can be advanced and subsequent culverts can be continuously installed, and the mobile steel formwork device for culvert production that can promote curing of culverts using steam and steam-promoting curing method of culverts using the same In addition, the present invention relates to a mobile steel formwork for producing a culvert, and a steam-promoting curing continuous construction method using the same, which is rigidly configured to further improve its structure and prevent deformation of the formwork when placing concrete.

In the construction of a culvert used for power tools, communication devices, etc., in order to solve the disadvantages of the on-site casting construction method, the present inventors through the patent application 2001-70237 and Utility Model Registration No. 267831, removable steel We developed a portable steel formwork for culvert production and a steam-promoting curing method for culverts using the formwork to form spheres continuously and promote curing using steam in the field.

1A to 1D are schematic exploded perspective views, assembling perspective views, assembling perspective views, and assembling floor slab manufacturing perspective views of a mobile steel formwork according to the above-described Patent Application No. 2001-70237 and Utility Model Registration No. 267831, respectively. It is.

The conventional mobile steel formwork device is composed of an external formwork device installed on the outer surface of the culvert (P300), and an internal formwork device (P60) installed on the inner surface of the culvert (P300). The external formwork device is movable along the upper surface of the foundation slab formwork member P10 and the foundation slab formwork member P10 for forming the bottom slab P310 of the culvert P300 and the side wall portion of the culvert Culvert (P300) to form an outer sidewall formwork member (P30), the foundation slab closing plate member (P102), and the front and rear surfaces of the culvert (P300) installed outside the sidewall portion of the culvert (P300) to form (P320). It consists of a front and rear surface closing plate member (P104) installed on the front and rear surfaces of the.

In the conventional mobile steel formwork, after pouring the bottom slab of the culvert as shown in Figure 1d using the foundation slab formwork member (P10), the outer sidewall formwork member on the side of the foundation slab formwork member (P10). (P30) should be installed. In other words, as shown in Figure 1b, in order to install the outer sidewall formwork member (P30), even after the bottom slab of the culvert is to be removed without continuing to remove the foundation slab formwork member (P10). As a result, some delay may occur in the manufacture of the culvert, and a new method for solving the culvert is required.

In addition, as shown in Figure 1b, the outer side wall formwork member (P30) of both sides is maintained by the gap retaining device (P42) of the upper portion, in some cases, only the gap holding device (P42) concrete In some cases, it is difficult to prevent the gap between the outer sidewall formwork members P30 from spreading due to the lateral pressure caused by the casting. Therefore, there is a need for a structure that can firmly maintain the gap of the outer sidewall formwork member P30.

The present invention was developed for the improvement required in the conventional mobile steel formwork as described above, after the construction of the bottom slab of the culvert foundation slab formwork for the bottom slab advances to the front, the foundation slab formwork By installing the outer sidewall formwork member separately from the member, the construction speed of the culvert can be made faster, and the outer sidewall formwork member has been developed to maintain the space more firmly even in the lateral pressure during concrete placing.

Figure 1a is an exploded perspective view schematically showing a conventional mobile formwork and culvert.

Figure 1b is a perspective view showing a state in which the conventional mobile formwork is assembled.

Figure 1c is a front view of a state installed a conventional mobile formwork for the manufacture of a culvert.

Figure 1d is a schematic diagram showing the fabrication of the floor slab of the culvert using the base slab formwork member in a conventional mobile formwork.

Figure 2a is a schematic diagram showing an exploded perspective view of one embodiment and culvert of the mobile steel formwork apparatus according to the present invention.

Figure 2b is a perspective view schematically showing a state in which an embodiment of a movable steel formwork according to the present invention is assembled.

Figure 3a is a schematic front view of a state in which concrete is poured into a mobile steel formwork according to the present invention.

Figure 3b is a schematic front view of a state in which the concrete pouring, the construction is completed in the movable steel formwork shown in Figure 3a can move to the neighboring section.

4A is a partial front view of a temporary example of an outer side wall formwork member installed outside the concrete of the side wall portion of the culvert in the present invention.

4B is a plan view of the outer sidewall formwork member shown in FIG. 4A.

Figure 5 is a schematic view of the front and rear finish plate member for forming the front and rear of the culvert in the present invention.

Figure 6 is a schematic perspective view showing an embodiment of the movable steel formwork apparatus according to the present invention having an external support frame in an assembled state.

7A and 7B are front views of an expanded state and a contracted state of the movable steel formwork according to the embodiment shown in FIG. 6, respectively.

8A and 8B are front views of an expanded state and a contracted state of the mobile steel formwork according to another embodiment of the mobile steel formwork according to the present invention, each having an external support frame;

* Description of the symbols for the main parts of the drawings *

15: connecting member 16, 312: rail portion

30: outer side wall formwork member 32: drive part

50, 61: steam supply pipe

60: internal formwork device 62: drive device

64 upper slab plate member 66 side wall plate member

68: haunting plate member 70, 71: expansion means

80: base 84: lifting device

104: front and rear finish plate member

106: angled steel 108: angled steel

200: mobile formwork device 300: culvert

310: floor slab 320: side wall

400: outer support frame

In order to achieve the above object, in the present invention, a movable steel formwork for continuously manufacturing a concrete culvert, a member installed outside the sidewall portion of the culvert to form the sidewall portion of the culvert, the drive along the rail portion outside thereof It is possible to move back and forth because it is equipped with a driving part, and when culling construction is completed between 1 area, it is demoulded and moved for culling construction between neighboring areas, and the steam supply pipe is installed on the outside to supply steam after pouring culvert concrete An external formwork device including an external sidewall formwork member capable of steam-promoting curing, and a front and rear endplate member coupled to the external sidewall formwork member to form a front and rear surface of the culvert; And the outer side wall formwork member of the outer formwork device, the lower end is detachably coupled to the insert means provided inside the bottom slab side of the culvert already installed, the upper end of the upper interval maintaining member in the transverse direction for maintaining the gap It is equipped; And a reinforcing beam installed in the longitudinal direction and a steel wire fixed to the upper and lower ends of the outer sidewall formwork member in a tense state across the reinforcing beam to apply a lateral force to the inner side of the outer sidewall formwork. A movable steel formwork for culvert production, characterized in that a lateral reinforcement structure is further provided on the outer wall of the outer sidewall formwork to reinforce that the lateral pressure is applied to the outer side of the formwork. An apparatus is provided.

In addition, in the present invention, as a mobile steel formwork for continuously producing a concrete culvert, a member installed outside the sidewall portion of the culvert to form the sidewall portion of the culvert, when the culvert construction of one site is completed is demolded to the adjacent It is moved for the construction of the culvert, and the steam supply pipe is installed on the outer surface, so that after supplying the culvert concrete, the outer sidewall formwork member can supply steam to cure the concrete culvert, and the outer sidewall formwork member is combined with the front and rear of the culvert An external formwork apparatus comprising a front and rear finish plate member forming a surface; And an outer support frame having a ramen structure provided at predetermined intervals to support the outer side wall formwork member of the outer formwork device, a horizontal support frame positioned across the upper sidewall formwork member, and both sides of the outer sidewall formwork member. A vertical support frame positioned vertically at a predetermined interval, a driving device provided at a lower end of the vertical support frame to be guided along a rail to move the external support frame back and forth, and the vertical support frame and the outer side wall formwork It is provided between the members and has an outer support frame including an expansion means for expanding the outer side wall formwork member into culvert concrete placing state or retracting by demoulding state by expansion and contraction; The outer side wall formwork member of the outer formwork device is detachably coupled at its lower end to an insert means provided inside the bottom slab side of the culvert already installed; And a reinforcing beam installed in the longitudinal direction and a steel wire fixed to the upper and lower ends of the outer sidewall formwork member in a tense state across the reinforcing beam to apply a lateral force to the inner side of the outer sidewall formwork. A movable steel formwork for culvert production, characterized in that a lateral reinforcement structure is further provided on the outer wall of the outer sidewall formwork to reinforce that the lateral pressure is applied to the outer side of the formwork. An apparatus is provided.

In the above-described movable steel formwork of the present invention, a through hole is formed at an upper end of the outer side wall formwork member, and an upper guide rod is installed at an upper edge of the outer support frame so that the upper guide rod penetrates the through hole. The top guide rod is provided with a fixing screw on the outside of the through hole of the outer side wall formwork member while the upper guide rod is penetrated through the through hole, and the lateral pressure acting on the outer side wall formwork when culvert concrete is placed. It can have a structure to prevent the upper end of the outer side wall formwork member to be opened to the outside by the positioning screw.

In addition, according to the present invention, in addition to the external formwork, the movable steel formwork device, as an internal formwork device to form an inner surface of the culvert by being installed at a predetermined interval apart from the external formwork device, the sidewall concrete inner surface of the culvert Side wall plate member facing the surface, upper slab plate member facing the lower surface of the upper slab concrete of the culvert, and stretched side plate member to move left and right, the upper slab plate member to move up and down to expand the internal formwork Expansion and contraction means, and a driving device is provided to move back and forth, when the concrete is installed for culvert construction to extend the expansion means to make the side wall plate member and the upper slab plate member expanded state, culvert When the construction is completed by shrinking the expansion means the side wall plate member and the upper slab plate member And a base which can move for the culling construction between neighboring grounds when the driving device becomes a driveable state and the culling construction between neighboring grounds is completed, and a lifting device which raises and lowers the base. An internal formwork device may be further provided.

In the mobile steel formwork device having such an internal formwork device, a rail portion is provided on the bottom slab of the culvert so that the internal formwork device can move, and after pouring culvert concrete with the steam supply pipe provided in the external sidewall formwork member. A steam supply pipe may be provided at one side of the rail part to supply steam to cure concrete.

In the present invention, in addition to the mobile steel formwork as described above, as a steam-promoting curing continuous construction method of the culvert using the mobile steel formwork for producing the culvert, the bottom slab is placed in a state in which the insert means is disposed in a predetermined position inside the side Construction; After fastening the bottom of the outer sidewall formwork member to the insert means of the completed floor slab and installing the upper end space keeping member at the top to install the outer sidewall formwork perpendicular to both sides of the bottom slab, Combining the surface finishing plate member to complete installation of the external formwork; Installing an inner formwork device in a contracted state inside the reinforcing bar; Extending the expansion means provided in the internal formwork and raising the lifting device of the base to expand the sidewall plate member and the upper slab plate member to make the internal formwork device in an expanded state; Constructing a culvert by placing concrete in a space between the external formwork and the internal formwork; Covering the curing cover to cover the entire formwork of the outer formwork and the culvert, and then supplying steam to the steam supply pipe of the outer side wall formwork member and the steam supply pipe on the bottom slab of the culvert to promote curing of the culvert by steam; When curing of the culvert is completed, the coupling of the outer formwork device is released, the expansion means of the inner formwork device are contracted, and the lifting device of the base is lowered to contract the sidewall plate member and the upper slab plate member, and at the same time the base Making the inner formwork device into a retracted state by causing the drive device of the drive device to be in a driveable state; There is provided a method for continuous steam promotion curing of the culvert, characterized in that for moving the inner formwork device and the outer formwork device for the culvert construction between the neighboring land.

In addition, in the present invention, as a member installed outside the side wall portion of the culvert to form the side wall portion of the culvert, when the culvert construction between the 1 area is completed, it is demoulded and moved for the culvert construction between neighboring grounds and the steam supply pipe is installed on the outer There is an outer formwork including an outer sidewall formwork member capable of supplying steam after the culvert concrete is poured to steam-promoting the concrete culvert, and a front and rear finish plate member coupled to the outer sidewall formwork member to form the front and rear surfaces of the culvert. Device; As the inner formwork device to form the inner surface of the culvert by being spaced apart from the outer formwork by a predetermined distance, the sidewall plate member facing the inner surface of the culvert side and the lower surface of the upper slab concrete of the culvert Equipped with an upper slab plate member, expansion and contraction means to expand and contract the internal formwork device by moving the upper slab plate member to the left and right and to move the upper slab plate member up and down, and the driving device to move back and forth, When the concrete is placed for construction, the expansion means is extended to make the side wall plate member and the upper slab plate member expanded, and when the culling construction is completed, the expansion means is contracted to shrink the side wall plate member and the upper slab plate member. At the same time, the driving device is in a driveable state, and the culvert construction of one site is completed. Adjacent the inner die device including an elevating unit for the base to move to the construction of the culvert span, elevating the base; And an outer support frame having a ramen structure provided at predetermined intervals to support the outer sidewall formwork member of the outer formwork, a horizontal support frame positioned across an upper side of the outer sidewall formwork member, and both sides of the external sidewall formwork member. A vertical support frame positioned vertically at a predetermined interval, a driving device provided at a lower end of the vertical support frame to be guided along a rail to move the external support frame back and forth, and the vertical support frame and the outer side wall formwork It is provided between the members and has an outer support frame including an expansion means for expanding the outer side wall formwork member into culvert concrete placing state or retracting by demoulding state by expansion and contraction; The outer side wall formwork member of the outer formwork device is detachably coupled at its lower end to an insert means provided inside the bottom slab side of the culvert already installed; And a reinforcing beam installed in the longitudinal direction and a steel wire fixed to the upper and lower ends of the outer sidewall formwork member in a tense state across the reinforcing beam to apply a lateral force to the inner side of the outer sidewall formwork. Culvert using a portable steel formwork for culvert production, which is further provided on the outer wall of the outer sidewall formwork member with a lateral reinforcement structure for reinforcing against the lateral pressure applied to the outer sidewall formwork member by concrete pouring during fabrication. CLAIMS 1. A steam promoting curing continuous construction method comprising: constructing a bottom slab with an insert means disposed at a predetermined position inside the side surface; Fastening the lower side of the outer sidewall formwork member to the insert means of the bottom slab, the outer support frame is installed, and the outer sidewall formwork is joined to the upper side of the outer sidewall formwork member to connect the outer sidewall formwork member to the bottom slab. After the installation vertically on both sides, the outer sidework formwork member and the front and rear finish plate member is combined to complete the installation of the external formwork device; After disposing the culvert reinforcing bar and installing an inner formwork in a contracted state inside the reinforcing bar; Extending the expansion means provided in the internal formwork and raising the lifting device of the base to expand the sidewall plate member and the upper slab plate member to make the internal formwork device in an expanded state; Constructing a culvert by placing concrete in a space between the external formwork and the internal formwork; Covering the curing cover to cover the entire formwork of the outer formwork and the culvert, and then supplying steam to the steam supply pipe of the outer side wall formwork member and the steam supply pipe on the bottom slab of the culvert to promote curing of the culvert by steam; When curing of the culvert is completed, the coupling of the outer formwork device is released, the expansion means of the inner formwork device are contracted, and the lifting device of the base is lowered to contract the sidewall plate member and the upper slab plate member, and at the same time the base Making the inner formwork device into a retracted state by causing the drive device of the drive device to be in a driveable state; There is provided a method for continuous steam promotion curing of the culvert, characterized in that for moving the inner formwork device, the outer formwork device and the outer support frame for culling construction between neighboring land.

Hereinafter, with reference to the accompanying drawings will be described the configuration of the present invention by looking at an embodiment of a mobile steel formwork device for culvert production according to the present invention and an embodiment of the method for promoting curing culvert using the same.

Figure 2a is an exploded schematic view showing an embodiment of the removable steel formwork 200 and the culvert 300 in accordance with the present invention, Figure 2b of the removable steel formwork 200 according to the present invention A perspective view is shown schematically showing an embodiment in which an embodiment is assembled.

In the embodiment shown in Figure 2a, the mobile steel formwork of the present invention for producing a concrete culvert, includes an external formwork installed on the outer surface of the culvert (300). As will be described later, the movable steel formwork device may be further provided with an internal formwork device 60 installed on the inner surface of the culvert 300. Construction of the floor slab 310 of the corresponding section to manufacture the culvert in Figure 2b has already been completed.

3a schematically shows a front view of a state in which concrete is poured into a mobile steel formwork device 200 according to the present invention, and FIG. 3b is a front view of a state in which concrete is placed and completed to move to a neighboring section. Is schematically shown.

First, the structure of the external formwork apparatus in the movable steel formwork according to the present invention will be described. The external formwork device of the present invention, the outer sidewall formwork member 30, which is installed outside the sidewall portion of the culvert 300 to form the sidewall portion 320 of the culvert 300, and the front and rear surfaces of the culvert 300 It consists of a front and rear surface closing plate member 104 is installed on the front and rear surfaces of the culvert 300 to form.

Patent Application No. 2001-70237 and Utility Model Registration No. 267831 developed by the present inventor prior to the present invention in order to pour the bottom slab 310 of the culvert 300, a separate basic slab formwork member (member number of Figure 1a) P10) was provided and the outer side wall formwork member had a structure that is coupled to the foundation slab formwork member.

By the way, the removable steel formwork apparatus 200 according to the present invention does not require a separate base slab formwork member as above combined with the outer sidewall formwork member. That is, the bottom slab 310 can be constructed using a general formwork, as shown in Figure 3a, by inserting the fastening means such as screws are fixed by insert so that the outer sidewall formwork member can be installed as described below Means 311 are provided at predetermined intervals inside both sides of the floor slab 310.

4A shows a partial front view of a temporary example of an outer sidewall formwork member 30 installed outside the sidewall portion concrete of the culvert 300 to form the sidewall portion 320 of the culvert. The outer side wall formwork member 30 is composed of a steel plate in which the side of the side wall portion of the culvert 300 is in contact with the concrete (rear side of the surface shown in FIG. 4A), which is a flat surface. Face) may be arranged in a lattice form for reinforcement.

In the present invention, the outer side wall formwork member 30, the bottom slab 310 of the culvert 300 is made in combination with the insert means 311 provided on the side of the bottom slab 310 It is installed. Specifically, as shown in Figure 4a, at the lower end of the outer side wall formwork member 30, the coupling hole 28 for fastening the bottom slab is a predetermined interval so as to correspond to the spacing of the insert means 311 of the bottom slab 310 It is formed. Removable fastening such as a bolt inserted into the coupling hole 31 for fastening the bottom slab in a state in which the outer side wall formwork member 30 is disposed perpendicular to the side of the already formed bottom slab 310 as shown in FIG. 3A. As the means 312 are fastened to the insert means 311, the lower end of the outer side wall formwork member 30 is fixed to the side surface of the bottom slab 310.

In consideration of construction errors, the bottom slab fastening coupling hole 28 is preferably formed in a long oval shape in a vertical direction so that the fastening means 312 can be easily combined with the insert means 311. .

As described above, in the present invention, the base slab formwork member and the outer sidewall formwork member do not need to be coupled, and after the bottom slab is continuously constructed using a conventional formwork, the outer sidewall formwork member is coupled to the constructed floor slab. It is. Conventionally, even when the bottom slab is completed, the foundation slab formwork member had to be continuously existed for the coupling of the outer sidewall formwork member and the construction of the culvert of the corresponding section was completed, so that the floor slab of the neighboring section could be constructed. Since the outer sidewall formwork member is installed on the floor slab that is already constructed, not the formwork member, only the floor slab can be constructed continuously regardless of the installation of the outer sidewall formwork member. Therefore, when the construction of the floor slab is completed in one section, Irrespective of the coupling of the side wall formwork members, the construction of the floor slab in the neighboring section and the construction of the floor slab in the previous section are completed, the outer side wall formwork members can be combined with the floor slab to complete the culvert. As a result, the air required for the construction of the culvert can be shortened.

In order to maintain the top spacing of the outer side wall formwork member 30, the upper end of the outer side wall formwork member 30 has a rod-shaped top spacing holding member 31 at predetermined intervals as shown in the plan view of FIG. 4B. It is installed in combination with. In addition to the rod member as illustrated, the upper interval maintaining member 31 may be a member such as a turnbuckle.

As described above, the outer side wall formwork member 30 is installed at the bottom of the bottom slab 310 is fixed when the concrete is placed, but after removing the concrete after finishing the casting of another culvert 300 In order to be separated from the bottom slab 310 to move in the front and rear direction along the rail portion 16 placed on both sides of the floor slab 310 or the culvert installation floor (see Fig. 3b). As will be described later, the outer side wall formwork member 30 moved in the front-rear direction is again coupled to the floor slab that has already been constructed.

The external side wall formwork member 30 is provided with a driving part 32 driven along the rail portion 16 to move forward and backward of the removed external sidewall formwork member 30. The drive unit 32 may be configured in such a way that the drive wheel can be raised and lowered so that it can be driven along the rail unit 16 only when necessary, the drive unit 32 having a structure capable of raising and lowering the drive wheel Is known because it is introduced in detail in the patent application No. 2001-70237 and Utility Model Registration No. 267831 already filed by the inventor, repeated description thereof will be omitted. However, in the present invention, the driving unit 32 does not necessarily have to have a structure in which the driving wheel is raised and lowered. 3A, the driving wheel of the driving unit 32 may be placed on the rail unit 16 for support even when the outer side wall formwork member 30 is coupled to the bottom slab 310. to be.

In the present invention, since the detached outer sidewall formwork member 30 can move back and forth along the rail portion, when the culling construction of one paper is completed, the outer sidewall formwork member 30 can be easily disassembled and moved to assemble again. Since it is possible to prepare for the construction of the culvert between the spaces, it is possible to continue the construction of the culvert and to reduce the air required for the construction of the culvert.

In the present invention, the outer side wall formwork member 30 is provided with a steam supply pipe 50 to the outside for supplying steam for the steam promoting curing of the culvert 300. The steam supply pipe 50 is formed with a plurality of steam outlets (not shown), the steam supplied through the steam supply pipe 50 from an external boiler (not shown) is ejected through the steam outlet. Since the steam spouted through the steam spout increases, the steam supply pipe 50 is preferably located in the longitudinal direction of the culvert 300 under the outer side wall formwork member 30 as shown in FIG. 4A. However, since the number and installation position of the steam supply pipe 50 is not necessarily limited thereto, a plurality of steam supply pipe 50 may be arranged at any position of the outer side wall formwork member 30 as necessary. As described above, since the present invention includes a steam supply pipe 50 capable of supplying steam to the outside of the outer side wall formwork member 30, as described later, steam supply is facilitated, and thus the concrete poured is steamed. It can be accelerated curing by. Therefore, it is possible to shorten the time required for curing the culvert concrete accordingly can significantly shorten the air required for the overall culvert construction.

On the other hand, in the present invention, the outer side wall formwork member 30 is further provided with a lateral reinforcement structure for reinforcing the outer side wall formwork member 30 against the lateral pressure acting during concrete placing. Specifically, as shown in Figures 3a and 4a, the reinforcing beam 33 in the longitudinal direction is fixed to the central portion of the outer side wall formwork member 30 of the present invention by a method such as welding. In addition, the upper and lower ends of the outer sidewall formwork member 30 are provided to span the reinforcing beam 33 of the steel wires 36 fixed at both ends by the fasteners 34 and 35. In other words, the steel wire 36 is installed so that both ends thereof are fixed to the upper end and the lower end of the outer side wall formwork member 30 in a state where the center of the steel wire 36 is placed so as to span the reinforcing beam 33. According to the reinforcement structure as described above using the steel wire 36, since the steel wire 36 is installed in a tensioned state, the force is applied inward to the center portion of the outer side wall formwork member 30 by the steel wire 36, concrete Since the lateral pressure applied to the outer sidewall formwork member 30 in the outward direction by concrete is canceled by the inward force generated by the steel wire 36, the rigidity with respect to the lateral pressure of the outer sidewall formwork member 30 is reduced. It is increased. Therefore, the positional fluctuation of the outer side wall formwork member 30 is suppressed, and as a result, the manufacture of a culvert having a precise specification is possible with a very low manufacturing error. These steel wires 36 are arranged at predetermined intervals as shown in FIG. 4A.

Next, in the movable steel formwork apparatus 200 according to the present invention, the internal formwork device 60 for forming the inner surface of the culvert 300 will be described. 3A shows an enlarged state of the internal formwork device 60 provided in the present invention, and FIG. 3B shows an embodiment shape when the internal formwork device 60 is in a contracted state.

In the present invention, the inner formwork device 60 is formed to be spaced apart from the outer sidewall formwork member 30 by a predetermined interval to form the inner surface of the culvert 300, specifically shown in Figures 3a and 3b As shown, the side wall plate member 66 facing the inner surface of the side wall concrete of the culvert 300 and the upper slab plate member 64 facing the lower surface of the upper slab concrete of the culvert 300 are provided.

In the present invention, the internal formwork device 60 is expanded when concrete is poured, and when the casting is completed, it is in a state capable of moving in the front and rear direction of the culvert. To this end, the internal formwork device 60 is provided with a base 80 provided with a driving device 62 at the bottom thereof, and a support pillar 86 for supporting the upper slab plate member 64 on the upper portion of the base 80. ) Is installed. The support pillar 86 is provided with expansion and contraction means 70 that can expand and contract the internal formwork device 60 by moving the side plate member 66 to the left and right.

In addition, the lower portion of the base 80 is provided with a drive device 62 to allow the base 80 to move in the front-back direction of the culvert 300 when the base 80 is lowered. In the embodiment, the support pillar 86, the base 80 and the upper slab plate member 64 are integrally connected, and when the base 80 is raised by the elevating device 84, the upper slab The plate member 64 is also raised to be placed in the concrete placing position. When the base 80 is lowered by the elevating device 84, the upper slab plate member 64 is also lowered to be in a position to contract away from the concrete surface of the upper slab.

On the other hand, in the position where the base 80 is raised, the driving device 62 is also lifted from the lower slab of the culvert 300, and when the base 80 is in the lowered position, the driving device 62 is the culvert ( The floor slab 300 is placed on the upper surface of the base 80 so that it can move back and forth. A rail 312 may be installed on an upper surface of the bottom slab for smooth driving of the driving device 62, and the rail 313 may be formed of an A-shaped steel or a steel bar as illustrated in FIG. 3A. However, the rail 313 is not necessarily limited thereto.

On the other hand, the stretching means 70 which can move the side wall plate member 66 on both sides left and right are respectively installed on the support pillars 86 installed on the base 80, one end of the stretching means 70 is the side of both sides Since it is connected to the back surface of the plate member 66, the upper side of the side wall plate member 66 on both sides is moved left and right by the expansion and contraction of the expansion means (70). As an example of the expansion and contraction means 70 supporting and stretching the side wall plate members 66 on both sides, a hydraulic cylinder using hydraulic pressure can be used.

An expansion state support 73 may be provided to maintain the stretchable means 70 in an extended state. The extended state supporting member 73 is rotatably mounted at one end thereof on the rear surface of the side wall plate member 66 on both sides thereof, and has an end portion formed at a free end portion to form a supporting rod that spans the support pillar 86. . In the expanded state supporting member 73, the end of the supporting rod is extended across the support pillar 86 in the expanded state of the side wall plate member 66, thereby preventing the side wall plate member 66 from moving. When the 66 must be demolded, the end of the support rod does not span the support pillar 86 as shown in FIG. 3B to allow the side wall plate member 66 to contract.

In general, each corner of the box-shaped culvert 300 is formed with a haunch, in the case of the culvert 300 having a haunch, the lower end of the side plate member 66 has a haunch plate member 68 for forming a haunch portion. Install. The haunting plate member 68 is hinged to one side of the side plate member 66, the expansion means 71 to rotate the haunch plate member 68 on the back of the haunch plate member 68, too. ) Is installed. The expansion means 71 may also be configured as a hydraulic cylinder type, in the embodiment shown in the drawing, the expansion means 71 is connected at both ends to the back and base 80 of the haunch plate member 68, respectively. have.

In addition, the upper portion of the side wall plate member 66 is provided with a length adjustment member 63 made of a plate of a predetermined height is bolted, the size of the culvert to be manufactured, in particular the height of the side wall plate member 66 When it is necessary to reduce or increase the length, it is possible to freely change the entire length of the side wall plate member 66 by replacing the length adjusting member 63. Therefore, the inner formwork device 60 can be flexibly operated when fabricating culverts having different sidewall lengths.

On the other hand, in the present invention, the steam supply pipe for supplying steam for the steam promoting curing of the culvert 300 to the outer surface (surface not in contact with the concrete) of the side wall plate member 66 of the internal formwork device 60 (Not shown) is installed. In addition, the steam supply pipe 61 may be installed in the longitudinal direction on the upper surface of the bottom slab 310 as shown in Figure 3a. The configuration of the steam supply pipe 61 itself is the same as the steam supply pipe 50 provided on the outside of the outer side wall formwork member 30, and a repeated description thereof will be omitted.

Looking at the behavior of the internal formwork device 60, in the concrete placing position for manufacturing the culvert 300, the expansion means 70 and the haunch plate member 68 installed on the back of the side wall plate member 66 The stretching means 71 installed on the rear side respectively extend so that the side plate member 66 and the haunting plate member 68 move outward. At the same time, the base 80 is also raised, and the upper slab plate member 64 is also raised. At this time, the driving device 62 below the base 80 is in a lifted state from the lower slab. In this specification, the state of such an internal formwork device 60 is referred to as an "expanded state".

When the casting of the concrete is completed and the internal formwork device 60 is removed from the culvert 300, the expansion means 70 and 71 contract and the side plate member 66 and the haunch plate member 68 It is moved inward to fall from the inner surface of the culvert 300. As the expansion means 84 contract, the base 80 is also lowered so that the upper slab plate member 64 is also separated from the upper slab of the culvert 300. At this time, as the base 80 is lowered, the driving device 62 is placed on the bottom slab 310 (specifically, on the rail), so that the internal formwork 60 can move back and forth. The state of the device 60 is referred to as "shrinkage state". The state of the internal formwork device 60 shown in FIG. 3A is an expanded state and the state of the internal formwork device 60 shown in FIG. 3B is a contracted state.

5 shows a front and rear finish plate member 104 for forming the front and rear of the culvert 300. The front and rear finish plate member 104 is made of a steel plate-like member, for the reinforcement as shown in Figure 12, the K-shaped steel 108 and the A-shaped steel 106 may be arranged in a grid shape.

Next, with reference to the accompanying drawings will be described the installation and disassembly of the mobile steel formwork apparatus 200 according to the present invention, and the steam-promoting curing continuous construction method using the same.

First, prior to constructing the culvert 300, the work route is selected, the curing facility and the mechanical apparatus are arranged, and subsequently, the trench is drilled along the work route using heavy equipment, and the construction of the culvert 300 is prepared. When the construction preparation is completed, the floor slab of the culvert 300 is constructed using a general formwork member. At this time, the insert means 311 is placed in the predetermined position of the side surface side of the floor slab before placing the floor slab concrete so that the insert means 311 is installed in the floor slab 310. When the floor slab 310 of the corresponding section is cured, the floor slab of the continuous neighboring section is constructed by disassembling the formwork member, regardless of the installation of the external formwork, which will be described later.

Reinforcing bars for the sidewall and upper slab reinforcement of the culvert 300 is reinforced. When the reinforcement of the reinforcing bar is completed, the external formwork device is installed to the outside of the rebar, and the internal formwork device 60 is installed to the inside.

In detail, first, when the reinforcement of the reinforcing bar is completed, the outer side wall formwork member 30 is installed vertically to the side of the floor slab 310 that has already been constructed. As described above, after the outer sidewall formwork member 30 is vertically erected to the side of the bottom plate slab 310, a bolt or the like in the coupling hole 31 for fastening the bottom slab formed at the lower end of the outer sidewall formwork member 30. After inserting the fastening means 312 and fastened to the insert means 311 so that the lower end of the outer side wall formwork member 30 is fixed to the side of the bottom slab 310. In addition, the upper end of the outer side wall formwork member 30 also maintains the gap between the outer side wall formwork member 30 on both sides by installing a rod-shaped upper end space maintaining member 31 at predetermined intervals as shown in the plan view of FIG. .

The internal formwork device 60, as shown in Figure 3a, the expansion device 70 provided on the back of the side wall plate member 66 and the expansion device 71 provided on the back of the haunch plate member 68 Each of the side wall plate member 66 and the hunt plate member 68 is extended toward the outside, and at the same time, the lifting device 84 is extended to raise the base 80 so that the upper slab plate member 64 is extended. The internal formwork 60 is expanded in an elevated position. At this time, the driving device 62 below the base 80 is in a lifted state from the bottom slab 310. Front and rear surface finishing plate member 104 is installed on the front and rear surfaces of the culvert 300.

As such, when the installation of the external formwork device and the internal formwork device 60 is completed, the concrete is poured. When placing concrete, the lateral pressure acts on the outer side wall formwork member 30 by the placing pressure of concrete. As described above, in the present invention, the tensioned steel wire 36 and the reinforcement for supporting the center of the steel wire 36 are reinforced. Since the force corresponding to the lateral pressure is applied to the outer sidewall formwork member 30 by the reinforcing structure composed of the dragon beam 33, the position of the outer sidewall formwork member 30 can be maintained firmly.

When the casting of the concrete is completed, the curing cover (not shown) is covered to cover both the outer surface of the external formwork and the open upper slab surface. When both the external formwork and the upper slab surface is covered by the curing cover, the boiler supplies steam to the steam supply pipes 50 and 61 on the bottom slab 310 of the external formwork and the culvert. The supplied steam is ejected from the steam outlets of the steam supply pipes 50 and 61 to fill the inside of the curing cover, and the concrete poured by the heat of the steam is steam-promoted. At this time, it is possible to control the correct curing temperature and time by installing an automatic temperature control device. As such, in the present invention, by placing the steam supply pipes (50, 61) on the outer formwork, the inner formwork and the bottom slab 310 of the culvert to supply the steam to facilitate the steam curing of the pour concrete is promoted curing It is possible to reduce the air accordingly. In addition, it is possible to prevent deterioration such as cracking, peeling, and deterioration of concrete through steam curing, and by supplying steam having a temperature and humidity suitable for curing, cracking or creep may occur due to dry shrinkage. Will be able to prevent.

On the other hand, the curing cover may be made of a simple bag shape, and in another embodiment, the outer surface of the outer formwork member is formed of a plate is covered with a predetermined interval with the outer side wall formwork member 30, the bag on the open surface of the upper slab It may be configured in the form of being covered with.

In the present invention, construction of the culvert 300 may proceed continuously with respect to the neighboring section. In short, when the steam promotion curing is completed and the production of the culvert 300 is completed, the base 80 of the internal formwork device 60 on the upper surface of the bottom slab 310 of the culvert 300 of the neighboring section that is already installed and installed. The rail 313 is installed to drive the drive device 62 provided therein, and one side of the rail 313 is provided with a steam supply pipe 61 connected to an external boiler. Steam curing is completed to remove the external formwork device and the internal formwork device 60 from the culvert 300 is completed construction.

Specifically, the front and rear surface finishing form member 104 provided on the front and rear surfaces of the culvert 300 is removed. In addition, by releasing the fastening means 312 fastened and fixed to the insert means 311 of the bottom slab 310 to separate the lower end of the outer side wall formwork member 30 from the bottom slab 310, the outer side wall formwork member The driving unit 32 mounted on the 30 is in a state capable of being driven by the rail unit 16 installed on the side surface of the floor slab 310. As the driving wheel of the detached outer sidewall formwork member 30 is driven along the rail portion 16, the detached outer sidewall formwork member 30 is easily moved to the fabrication position of the culvert 300 in the neighboring section. . Thereafter, the above-described reinforcement of the reinforcing bar, the outer side wall formwork member 30 and the process of coupling the bottom slab of the adjacent section is repeated.

On the other hand, the inner formwork device 60, the inner surface of the culvert 300 by contracting the expansion means (70, 71) to move the side wall plate member 66 and the haunting plate member 68 inward And at the same time the base 80 is also lowered to cause the upper slab plate member 64 to fall away from the upper slab of the culvert 300 to bring the internal formwork 60 into a contracted state as shown in FIG. 3B. do. In this contracted state, the base 80 is lowered so that the driving device 62 is placed on the bottom slab 310 (specifically, on the rail) so that the internal formwork 60 can move back and forth along the rail 313. Becomes In order to manufacture the culvert 300 between neighboring grounds, since the bottom slab 310 between neighboring grounds is already installed and a rail 313 is installed thereon, the driving device 62 of the internal formwork 60 is already The rail 313 of the culvert between the completed culvert and the neighboring ground moves along the rail 313 on the bottom slab 310 and is easily positioned on the bottom slab 310 of the culvert between neighboring grounds. When the movement of the internal formwork device 60 is completed, as described above, the internal formwork device 60 is made to be in an expanded state again, thereby making it possible to place concrete for culvert production. Subsequent operations will be repeated since the same contents as described above will be omitted.

Next, another embodiment of the present invention having an outer support frame for installing and supporting the outer side wall formwork member is described with reference to FIGS. 6, 7A, and 7B.

6 is a schematic perspective view showing an embodiment of a mobile steel formwork according to the present invention having an external support frame 400 in an assembled state, and FIGS. 7A and 7B respectively illustrate the above-mentioned movable steel formwork. A front view of the expanded and retracted state of the device is shown.

As shown in Figure 6, 7a and 7b, in the embodiment of the movable steel formwork, the outer support frame 400 of the ramen structure for supporting the outer sidewall formwork member 30 of the outer formwork is It is provided at predetermined intervals. Looking at the configuration of the outer support frame 400 in detail, the outer support frame 400, the horizontal support frame 401 positioned across the upper side of the outer side wall formwork member 30 and the outer side wall formwork It is configured to include a vertical support frame 402 positioned vertically at predetermined intervals on both sides of the member (30). A driving device 403 is installed at the lower end of the vertical support frame 402, and the driving device 403 is driven by a rail 404 placed in the longitudinal direction at the lower end of the driving device 403. Therefore, the external support frame 400 can move in the front and rear directions.

On the other hand, in the present embodiment, the expansion means 410 is provided between the outer side wall formwork member 30 and the vertical support frame 402, by the expansion and contraction of the expansion means 410 the outer side wall formwork member 30 advances to the pouring state of the culvert concrete (state of FIG. 7A) or retreats to the demold state of the culvert concrete (state of FIG. 7B).

The upper side of the outer sidewall formwork member 30 is provided on the upper guide rod 405 provided in the outer support frame 400 so that the outer sidewall formwork member 30 can be stably retracted in a pour state / deformed state. Guided by Specifically, the upper fixing bar 405 is installed to have a predetermined horizontal portion between the vertical support frame 402 and the horizontal support frame 401 through holes formed in the upper end of the outer side wall formwork member 30 ( (Not shown). A screw portion is formed on a portion outer surface of the upper fixing rod 405 through the through hole, and a position fixing screw 406 on the upper fixing rod 405 on an outer surface side of the outer side wall formwork member 30. Is provided.

In the above embodiment, the outer side wall formwork member 30 is not provided with a driving device at its lower end, a through hole is formed at the upper end thereof so that the upper fixing rod 405 is penetrated, and the outer side wall formwork is formed. Except that the expansion means 410 is installed between the vertical support frame 402 on the outer surface of the member 30, and other components such as a structure installed in combination with the floor slab, reinforcement structure for the lateral pressure Is the same as the embodiment described with reference to FIGS. 2A to 5, and thus, repeated descriptions thereof will be omitted.

Meanwhile, the internal formwork device 60 provided in the embodiment illustrated in FIGS. 6, 7A, and 7B is the same as the embodiment described with reference to FIGS. 2A through 5. Therefore, repeated description thereof will be omitted.

Next, a manufacturing process of the culvert 300 using the mobile steel formwork apparatus according to the above-described embodiment will be described with reference to FIGS. 7A and 7B. First, after constructing the bottom slab 310 by using a general formwork device and reinforcing the reinforcing bar reinforcement of the culvert 300, the insert means 311 installed on the bottom slab 310 of the outer sidewall formwork member 30 Fix the bottom to install the vertical side wall formwork member 30 vertically. At this time, the expansion means 410 is installed in the vertical support frame 402 to maintain the vertical position of the outer side wall formwork member 30, and at the same time penetrates the upper end of the outer side wall formwork member 30. The position fixing screw 406 of the upper fixing rod 405 is moved to abut on the outer surface of the outer sidewall formwork member 30 so that the upper end of the outer sidewall formwork member 30 is not pushed outward.

After moving and installing the internal formwork device 60 to the inside of the reinforcing reinforcing bars, the internal formwork device 60 is expanded in the same manner as the embodiment described with reference to FIGS. 2A to 5.

In this way, after the installation of the external formwork device and the internal formwork device 60 is completed, the concrete is poured to manufacture the culvert 300. When the concrete is accelerated and cured in the same manner as the embodiment described with reference to FIGS. 2A to 5 and the curing of the concrete is completed, and the fabrication of the culvert 300 is completed, the outer sidewall formwork member 30 and After demolding the internal formwork device 60, a culvert 300 of a subsequent neighboring section is manufactured.

First, the position fixing screw 406, which has prevented the upper end of the outer sidewall formwork member 30 from being pushed outward, is sufficiently retracted to the outside so that the upper end of the outer sidewall formwork member 30 is movable outward. In addition, the fastening means 312 at the bottom of the outer side wall formwork member 30 is released so that the outer side wall formwork member 30 is separated from the insert means 311. When the expansion and contraction means 410 installed in the vertical support frame 402 is contracted, the outer side wall formwork member 30 moves out of the side of the culvert 300 as shown in FIG. Along with this, the inner formwork device 60 is also in a contracted state, and is demolded, and the front and rear finishing form member 104 is also removed.

When the outer side wall formwork member 30 is demoulded as described above, the driving unit 403 of the outer support frame 400 is driven in a guided state by the rail 404 so that the outer support frame 400 and the outer side wall formwork member Move 30 to a neighboring section. Thereafter, the process of assembling the bottom side slab of the outer side wall formwork member 30, moving and assembling the inner formwork device 60, and repeating the construction of the adjacent culvert 300 continuously.

Thus, in the embodiment shown in Figures 6, 7a and 7b is provided with an outer support frame 400 can easily perform the assembly and demoulding of the outer side wall formwork member 30, the neighboring culvert Even when moving for construction, it is possible to easily move the external support frame itself. In particular, since the outer side wall formwork member 30 is supported by the outer support frame 400 on its outer surface, the outer side wall formwork member 30 can be more firmly and efficiently coped with the lateral pressure caused by concrete placing, and thus the outer side wall formwork member 30 Positional fluctuation of is suppressed, and as a result, it is possible to fabricate an accurate specification culvert.

8A and 8B show front views of an expanded state and a contracted state of another embodiment of a mobile steel formwork apparatus according to the present invention having the outer support frame 400, respectively. Looking at the difference compared to the embodiment shown in Figs. 7a and 7b, in the embodiment shown in Figs. 8a and 8b, the outer side wall formwork member 30 is stably retracted in the pour state / demold state In order to guide the upper end of the outer side wall formwork member 30, the installation structure of the upper guide rod 405 provided on the outer support frame 400 has been modified. That is, on the upper end of the vertical support frame 402 of the outer support frame 400, a screw support member 407 is installed to support the position fixing screw 406 to advance and retreat by a screw action, and the top guide One end of the rod 405 is configured to be freely inserted into the position fixing screw 406 and the screw support member 407. 8A and 8B, since no thread is formed on the outer surface of the upper guide rod 405, when the outer sidewall formwork member 30 is guided along the upper guide rod 405, the upper end Damage to the thread formed on the outer surface of the guide rod 405 is essentially prevented.

As shown in FIG. 8A, when the outer sidewall formwork member 30 is in a pour state, the outer sidewall formwork member 30 is moved out by moving the position fixing screw 406 engaged with the screw supporting member 407. This prevents it from being pushed outward. On the other hand, when the external side wall formwork member 30 is demoulded, the positioning screw 406 is retracted so that the external side wall formwork member 30 is freely guided to the upper guide rod 405 in the outward direction. It is in a state to be pushed.

Another difference from the embodiment shown in FIGS. 8A and 8B differs from the embodiment shown in FIGS. 7A and 7B in the configuration of supporting the lower end of the outer sidewall formwork member 30. In the embodiment shown in FIGS. 7A and 7B, the placing device of the outer side wall formwork member 30 is sufficiently supported and maintained by the expansion and contraction device 410 installed in the vertical support frame 402. In the embodiment shown in Figure 8b is further provided with a structure that can more firmly support the pouring state of the outer side wall formwork member 30 in addition to the expansion device.

Specifically, as shown in FIGS. 8A and 8B, at the lower end of the vertical support frame 402, a hollow screw support member 409 and the screw support member as at the upper end of the vertical support frame 402. Coupling with (409) to install a hollow position fixing screw 411 to advance or retract from the screw support member (409) by a screw action. A fastening member 408 of a sufficient length such as a long bolt is inserted through the hollow of the screw supporting member 409 and the position fixing screw 411, and then continues to fasten the bottom slab at the bottom of the outer side wall formwork member 30. As the end of the fastening member 408 penetrates through the coupling hole 28 (see FIG. 4A) to the insert means 311 provided in the bottom slab 310, not only the external side wall formwork member 30. , The lower end of the vertical support frame 402 is also configured to be coupled to the floor slab 310. In the placing position of the outer sidewall formwork member 30, when the position fixing screw 411 advances under the action of the screw and abuts against the outer surface of the outer sidewall formwork member 30, the lower end of the outer sidewall formwork member 30 is the outer side. It is prevented from moving in the direction is more firmly coupled with the floor slab 310. In the deformed position of the outer side wall formwork member 30, the fastening member 408 is released from the insert means 311 and retracted, and at the same time, the positioning screw 411 is engaged with the screw supporting member 409. By retreating in the state, the outer side wall formwork member 30 is in a state capable of freely retreating outward with its lower end fitted to the fastening member 408. When the expansion and contraction means 410 installed in the vertical support frame 402 is contracted, the outer side wall formwork member 30 is retracted to the outside and demolded.

Meanwhile, in the embodiment shown in FIGS. 8A and 8B, unlike the embodiment of FIGS. 7A and 7B in which the steam supply pipe 61 is installed on the top surface of the bottom slab 310, the base of the internal formwork device 60 ( 80) It is installed at the bottom. However, the installation position of the steam supply pipe 61 is not limited thereto, and the steam supply pipe 61 may be installed at any position of the internal formwork device 60.

In the above description, the mobile formwork according to the present invention does not necessarily have to be used together with the external formwork and the internal formwork 60, and may be used separately. That is, in manufacturing the culvert, it is possible to use only the external formwork device or only the internal formwork device 60 according to the present invention.

As described above, the mobile steel formwork device according to the present invention is constructed as a prefabricated structure, and in particular, since the outer sidewall formwork member and the inner formwork device each have a structure that can be easily moved after the completion of construction, the construction of one culvert Since it can be easily moved for the construction of culverts between neighboring lands, the construction of continuous culverts is very easy.

In addition, since the mobile steel formwork according to the present invention is easy to assemble and disassemble, unlike the prior art, it is possible to shorten the formwork and copper bar installation period, it is possible to use repeatedly. In addition, the surface of the product is beautiful by using a movable steel formwork.

In particular, the mobile steel formwork apparatus according to the present invention is provided with a configuration that can supply steam to the formwork member, it is possible to easily supply steam without additional equipment, it is easy to cure the steam of the culvert, the curing period of the culvert By shortening it is possible to shorten the air required for the entire culvert construction. In addition, it is possible to shorten the air by shortening the curing period of the concrete, and even in winter and weather worsening adaptability is excellent, does not cost a separate curing cost.

On the other hand, conventionally, even when the bottom slab is completed, the foundation slab formwork member had to be continuously maintained for the coupling of the outer sidewall formwork member, and the construction of the culvert of the corresponding section was completed, but the floor slab of the neighboring section could be constructed. According to the mobile steel formwork according to the present invention, there is no need to combine the foundation slab formwork member and the external sidewall formwork member, and after constructing the floor slab continuously using a conventional formwork, the outer sidewall formwork member is configured to be joined to the constructed floor slab. As a result, the floor slab can be constructed continuously. As a result, when the construction of the floor slab is completed in one section, the floor slab of the neighboring section is constructed simultaneously with the construction of the floor slab irrespective of the coupling of the external side wall formwork members. In this previous section, the outer sidewalls on the floor slab By combining the formwork member to complete the culvert, it is possible to shorten the air required for the construction of the culvert.

Furthermore, the movable steel formwork apparatus according to the present invention is made of steel and the outer surface of the outer sidewall formwork member is provided with a reinforcing structure as described above using steel wires, and a force is applied inward to the center portion of the outer sidewall formwork member by the steel wire. You lose. Therefore, the lateral pressure applied to the outer sidewall formwork member by the concrete in the outward direction during concrete placement is canceled by the inner force generated by the steel wire, thereby increasing the rigidity against the lateral pressure of the outer sidewall formwork member, and as a result, the outer sidewall The positional change of the formwork member is suppressed, and as a result, the production error is very low, and the manufacture of the culvert having precise specifications is possible.

In particular, in the embodiment of the present invention having an outer support frame, since the outer side wall formwork member is firmly supported by the outer support frame, it is excellent in rigidity and does not cause deformation or warping during work, thereby sufficient compaction of concrete. It can be made, thereby increasing the durability, watertightness, etc. of the concrete, thereby improving the quality of the culvert.

Claims (8)

As a mobile steel formwork for continuously manufacturing the concrete culvert 300, It is a member installed outside the side wall portion of the culvert 300 to form the side wall portion 320 of the culvert, the outside is provided with a drive unit 32 driven along the rail portion 16 is possible to move back and forth When the culvert construction is completed, it is demoulded and moved for culvert construction between neighboring lands, and the steam supply pipe 50 is installed on the outer surface to supply steam after culvert concrete is poured to promote concrete curing culvert 300. An outer formwork device including an outer sidewall formwork member (30) and a front and rear endplate member (104) coupled to the outer sidewall formwork member (30) to form a front and rear surface of the culvert (300); The outer side wall formwork member 30 of the outer formwork device is embedded in the side at the time of construction of the floor slab 310 in the state in which the bottom slab 310 of the culvert 300 is constructed, and the floor slab 310 is formed. The lower end is detachably coupled to the insert means 311 installed on the side of the upper end, and the upper end is provided with an upper interval maintaining member 31 in the transverse direction for maintaining the gap; The reinforcing beam 33 is installed in the longitudinal direction, and is fixed to the upper and lower ends of the outer side wall formwork member 30 in a tense state across the reinforcing beam 33 to the inside of the outer side wall formwork member 30. A horizontal reinforcing structure configured to include a steel wire 36 for applying a lateral force to reinforce the lateral pressure applied to the outer side of the outer side wall formwork member 30 by concrete placing during culvert production, the outer side wall formwork A movable steel formwork for culvert production, characterized in that it is further provided on the outer wall of the member (30). As a mobile steel formwork for continuously manufacturing the concrete culvert 300, As a member installed outside the side wall portion of the culvert 300 to form the side wall portion 320 of the culvert, when culling construction is completed between one section, it is demoulded and moved for culling construction between neighboring grounds, and the steam supply pipe 50 is It is installed on the outer surface to supply steam after culvert concrete pouring the external side wall formwork member 30 and steam cure curing concrete culvert 300, coupled with the outer side wall formwork member 30, the culvert 300 External formwork device including a front and rear finish plate member 104 to form a front and rear surface of the; And An outer support frame 400 having a ramen structure provided at predetermined intervals to support the outer side wall formwork member 30 of the outer formwork device, wherein the horizontal support frame is positioned across the upper side of the outer sidewall formwork member 30 ( 401, a vertical support frame 402 positioned vertically at predetermined intervals on both sides of the outer side wall formwork member 30, and the external support frame 400 to move back and forth. The drive unit 403 is provided at the bottom and guided and driven along the rail 404, and is installed between the vertical support frame 402 and the outer sidewall formwork member 30 to expand and contract the outer sidewall formwork member 30. Is provided with an outer support frame 400 including an expansion means (410) for advancing to the culvert concrete pouring state or retreating to the demold state; The outer side wall formwork member 30 of the outer formwork device is embedded in the side at the time of construction of the floor slab 310 in the state in which the bottom slab 310 of the culvert 300 is constructed, and the floor slab 310 is formed. Its lower end is detachably coupled to the insert means 311 installed on the side of the; The reinforcing beam 33 is installed in the longitudinal direction, and is fixed to the upper and lower ends of the outer side wall formwork member 30 in a tense state across the reinforcing beam 33 to the inside of the outer side wall formwork member 30. A horizontal reinforcing structure configured to include a steel wire 36 for applying a lateral force to reinforce the lateral pressure applied to the outer side of the outer side wall formwork member 30 by concrete placing during culvert production, the outer side wall formwork A movable steel formwork for culvert production, characterized in that it is further provided on the outer wall of the member (30). The method of claim 2, A through hole is formed at an upper end of the outer side wall formwork member 30, and an upper guide bar 405 is installed at an upper edge of the outer support frame 400 so that the upper guide bar 405 is formed in the through hole. Installed through the In the state where the upper guide rod 405 penetrates the through hole, the upper guide rod 405 is provided with a fixing screw 406 located outside the through hole of the outer side wall formwork member 30, when culvert concrete is poured. Removable steel formwork for culvert production, characterized in that the fixing screw 406 to prevent the upper end of the outer sidewall formwork member 30 to open to the outside by the lateral pressure acting on the outer sidewall formwork member 30. Device. The movable steel formwork according to any one of claims 1 to 3, wherein An inner formwork device 60 which forms an inner surface of the culvert 300 by being spaced apart from the outer formwork device by a predetermined distance, the sidewall plate member 66 facing the inner surface of the sidewall concrete of the culvert 300; The upper slab plate member 64 facing the lower surface of the upper slab concrete of the culvert 300 is stretched and moves the side slab member 66 to the left and right and the upper slab plate member 64 to move up and down to form the internal formwork. Expansion means (70, 71) that can expand / contract the device 60, and the drive device 62 is provided to move back and forth, the expansion means (70, 71) when placing concrete for culvert construction To extend the side wall plate member 66 and the upper slab plate member 64 to an expanded state, and when the culling is completed, the expansion means 70 and 71 are contracted to contract the side wall plate member 66 and the upper slab. The plate member 64 is in a contracted state and at the same time When the moving device 62 is in a driveable state and the completion of the culling construction between the 1 zones is completed, the base 80 which can move for culling construction between neighboring grounds, and the elevating apparatus 84 for raising and lowering the base 80 are provided. Removable steel formwork for culvert, characterized in that it further comprises an inner formwork device (60) comprising a). The method of claim 4, wherein On the bottom slab 310 of the culvert, a rail part 312 is provided to move the internal formwork device 60, and culvert concrete is poured together with the steam supply pipe 50 provided in the external sidewall formwork member 30. After the steam is supplied to the steam supply pipe 61 is provided on one side of the rail unit 312 so as to cure the concrete movable iron formwork for culvert production. It is a member installed outside the side wall portion of the culvert 300 to form the side wall portion 320 of the culvert, the outside is provided with a drive unit 32 driven along the rail portion 16 is possible to move back and forth When the culvert construction is completed, it is demoulded and moved for culvert construction between neighboring lands, and the steam supply pipe 50 is installed on the outer surface to supply steam after culvert concrete is poured to promote concrete curing culvert 300. An external formwork device including an outer sidewall formwork member (30) and a front and rear endplate member (104) coupled to the outer sidewall formwork member (30) to form a front and rear surface of the culvert (300); The outer side wall formwork member 30 of the outer formwork device, the lower end is detachably coupled to the insert means 311 provided in the side surface of the bottom slab 310 of the culvert 300 is already installed, the upper end is spaced An upper interval holding member 31 in the transverse direction for holding; The reinforcing beam 33 is installed in the longitudinal direction, and is fixed to the upper and lower ends of the outer side wall formwork member 30 in a tense state across the reinforcing beam 33 to the inside of the outer side wall formwork member 30. A horizontal reinforcing structure configured to include a steel wire 36 for applying a lateral force to reinforce the lateral pressure applied to the outer side of the outer side wall formwork member 30 by concrete placing during culvert production, the outer side wall formwork As a steam-promoting curing continuous construction method of the culvert using a portable steel formwork for culvert, characterized in that the outer wall of the member 30 is further provided, Constructing a bottom slab (310) with the insert means (311) disposed at a predetermined position inside the side surface; Fastening the lower end of the outer sidewall formwork member 30 to the insert means 311 of the bottom slab 310, the installation is completed, and install the upper end space maintaining member 31 of the upper end slab the outer sidewall formwork member 30 After installing vertically on both sides of 310, by combining the outer side wall formwork member 30 and the front and rear finish plate member 104 to complete the installation of the external formwork device; Installing an internal formwork device for forming an inner surface of the culvert 300 into the inner side of the reinforcing bar after disposing the culvert reinforcing bar; Constructing a culvert 300 by placing concrete in a space between the external formwork and the internal formwork; Covering the curing cover to cover the entire upper slab of the external formwork and the culvert and then supplying steam to the steam supply pipe 50 of the external sidewall formwork member 30 to promote curing of the culvert 300 by steam; When curing of the culvert 300 is completed, release the coupling of the outer formwork device, the steam-promoting curing continuous construction of the culvert, characterized in that for moving the released outer formwork culvert 300 between the neighboring land Way. As a member installed outside the side wall portion of the culvert 300 to form the side wall portion 320 of the culvert, when culling construction is completed between one section, it is demoulded and moved for culling construction between neighboring grounds, and the steam supply pipe 50 is It is installed on the outer surface to supply steam after culvert concrete pouring the external side wall formwork member 30 and steam cure curing concrete culvert 300, coupled with the outer side wall formwork member 30, the culvert 300 External formwork device including a front and rear finish plate member 104 to form a front and rear surface of the; And an outer support frame 400 having a ramen structure installed at predetermined intervals to support the outer side wall formwork member 30 of the outer formwork device, wherein the horizontal support frame is positioned across the upper side of the outer sidewall formwork member 30. 401, a vertical support frame 402 positioned vertically at predetermined intervals on both sides of the sidewall formwork member 30, and the vertical support frame 402 so that the external support frame 400 is movable back and forth. It is installed at the lower end of the driving device 403 is guided along the rail 404 and is driven between the vertical support frame 402 and the outer side wall formwork member 30, the outer side wall formwork member 30 by expansion and contraction ) Is provided with an outer support frame (400) including an expansion means (410) for advancing into a culvert concrete pouring state or retreating to a demold state; The lower sidewall formwork member 30 of the outer formwork device is detachably coupled at its lower end to an insert means 311 provided in the side surface of the bottom slab 310 of the culvert 300 already installed; The reinforcing beam 33 is installed in the longitudinal direction, and is fixed to the upper and lower ends of the outer side wall formwork member 30 in a tense state across the reinforcing beam 33 to the inside of the outer side wall formwork member 30. A horizontal reinforcing structure configured to include a steel wire 36 for applying a lateral force to reinforce the lateral pressure applied to the outer side of the outer side wall formwork member 30 by concrete placing during culvert production, the outer side wall formwork As a steam-promoting curing continuous construction method of the culvert using a movable steel formwork for culvert is further provided on the outer wall of the member 30, Constructing a bottom slab (310) with the insert means (311) disposed at a predetermined position inside the side surface; Fastening the lower end of the outer side wall formwork member 30 to the insert means 311 of the bottom slab 310, the installation is completed, the outer support frame 400 is installed, the outer support frame 400 and the outer side wall formwork After coupling the upper end of the member 30 to install the outer sidewall formwork member 30 vertically on both sides of the bottom slab 310, the outer sidewall formwork member 30 and the front and rear surface finisher member 104 are coupled. To complete the installation of the external formwork; Installing an internal formwork device for forming an inner surface of the culvert 300 into the inner side of the reinforcing bar after disposing the culvert reinforcing bar; Constructing a culvert 300 by placing concrete in a space between the external formwork and the internal formwork; Covering the curing cover to cover the entire upper slab of the external formwork and the culvert and then supplying steam to the steam supply pipe 50 of the external sidewall formwork member 30 to promote curing of the culvert 300 by steam; When curing of the culvert 300 is completed, release the coupling of the outer formwork device, the culvert of the culvert, characterized in that for moving the outer formwork and the outer support frame 400 for the construction of the culvert 300 between the neighboring land Continuous steam curing curing method. The method according to claim 6 or 7, The movable steel formwork for fabricating the culvert is an internal formwork device 60 that forms an inner surface of the culvert 300 by being spaced apart from the external formwork by a predetermined distance, and faces the inner concrete surface of the sidewall of the culvert 300. The upper side slab plate 66 and the upper slab plate member 64 facing the lower surface of the upper slab concrete of the culvert 300 is stretched to move the side plate member 66 to the left and right the upper slab plate Extension means (70, 71) that can expand and contract the internal formwork device (60) by moving the member 64 up and down, and a drive device (62) to move back and forth, the concrete placing for culvert construction At the time, the expansion means (70, 71) is extended to make the side wall plate member 66 and the upper slab plate member 64 in an extended state, and when the culling is completed, the expansion means (70, 71) is contracted The side wall plate member 66 and the upper slab At the same time as the plate member 64 is in a contracted state and the drive device 62 becomes a driveable state, when the culling construction between one section is completed, the base 80 can move for culling construction between neighboring grounds, and Further comprising an internal formwork device 60 comprising a lifting device 84 for lifting the base 80 up and down; After installing the external formwork and completing the reinforcement reinforcement, the internal formwork 60 is installed inside the reinforcement reinforcement, and the expansion means 70 and 71 of the internal formwork 60 are installed. E) and raise the elevating device (84) of the base (80) to expand the sidewall plate member (66) and the upper slab plate member (64) to make the internal formwork device (60) in an expanded state; After placing concrete in the space between the external formwork device and the internal formwork device 60 to cure the culvert 300, the expansion means 70 and 71 of the internal formwork device 60 are contracted. The lifting device 84 of the base 80 is lowered to contract the side wall plate member 66 and the upper slab plate member 64 while driving the drive device 62 of the base 80. By making the inner formwork device 60 in a contracted state, the inner formwork device 60 is moved together with the outer formwork device for the construction of the culvert 300 between neighboring grounds. Promoting curing continuous construction method.