Cast-in-place curb single-side vibrating steel formwork

Abstract

The utility model discloses a cast-in-place curb single-side vibrating steel formwork which comprises a along-stone formwork and a transverse-stone formwork, the along-stone formwork comprises an L-side formwork and an opposite-side formwork, the top of an L-side keel is transversely connected with the top of an opposite-side keel in a pulling mode, and the transverse-stone formwork blocks the front end and the rear end of the along-stone formwork. The L-side panel comprises an L-side upper vertical plate, a flat plate and an L-side lower vertical plate, the bottom end of the L-side upper vertical plate and the inner end of the flat plate form an integrally-formed arc-shaped chamfer, the flat plate is divided into a group of flat partition plates by the L-side vertical partition keel, single-side vibration preformed holes are correspondingly formed in the flat partition plates, and sealing structures capable of opening and closing the single-side vibration preformed holes are arranged on the flat partition plates. According to the utility model, the steel template is adopted for manufacturing, the concrete of the curb is fully vibrated in two stages through the single-side vibration preformed hole by taking the arc-shaped chamfer position as a boundary, and bubbles in the surface of the concrete can be fully extruded out from the single-side vibration preformed hole and the top of the side template in stages, so that the pouring quality of the curb is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of steel formwork, and in particular, it is a single-sided vibratory steel formwork for cast-in-place curb stones. Background Technology

[0002] Currently, curb stones are generally prefabricated reinforced concrete blocks that are delivered to the site for installation. However, in the field of bridge construction, in order to ensure the strength of the curb stones, the reinforcing bars of the curb stones need to be lapped and tied together with the reinforcing bars of the entire bridge deck. The curb stone concrete is then poured on site after the bridge deck concrete is poured.

[0003] L-shaped curb stones have an L-shaped side, resembling both a vertical and a horizontal plane, with a relatively small chamfered corner formed by the connection of the two sides. Using ordinary wooden formwork not only fails to guarantee the quality of the chamfered corner but also results in material waste due to the inability to reuse the formwork multiple times. Furthermore, after the concrete on the L-shaped side is poured, a flat section forms. The concrete pouring inlet is typically located at the top of the formwork system, and a vibrator is inserted through this inlet for compaction. However, during the pouring of the flat section, the vertically inserted vibrator cannot adequately agitate the concrete, causing it to accumulate naturally. This prevents the release of air bubbles through vibration, resulting in numerous air bubbles remaining inside, on the surface, and at the chamfered corner of the flat section after formwork removal, thus compromising the overall quality of the concrete construction.

[0004] Therefore, a single-sided vibratory steel formwork for cast-in-place curb stones is needed to improve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a single-sided vibratory steel formwork for cast-in-place curb stones, which solves the technical problems of existing wooden formwork that cannot guarantee the chamfering quality and cannot be reused multiple times, resulting in material waste; and solves the technical problem that the concrete flat part formed on one side of the L-shaped surface cannot release air bubbles through vibration, resulting in a large number of air bubbles inside or on the surface of this part of the concrete, and thus the construction quality cannot be guaranteed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A single-sided vibratory steel formwork for cast-in-place curbstone includes side molds enclosing the four sides of the curbstone. Each side mold comprises a longitudinal mold and a transverse mold. The longitudinal mold is arranged along the length of the curbstone on both the left and right sides, including an L-shaped side mold and an opposite side mold. The L-shaped side mold includes an L-shaped side panel and an L-shaped side rib, and the opposite side mold includes an opposite side panel and an opposite side rib. The tops of the L-shaped side ribs are laterally connected to the tops of the opposite side ribs. The transverse mold seals the front and rear ends of the longitudinal mold.

[0008] The L-side panel consists of an upper vertical plate, a flat plate, and a lower vertical plate from top to bottom. The bottom end of the upper vertical plate and the inner end of the flat plate are integrally formed with an arc-shaped chamfer. The L-side keel includes vertical dividing keels spaced along the outer surface of the L-side panel in the direction of the stone. The flat plate is divided by the vertical dividing keels to form a set of flat partitions. The flat partitions have corresponding single-sided vibration pre-reserved holes and a sealing structure that allows the single-sided vibration pre-reserved holes to be opened and closed.

[0009] The single-sided vibration pre-reserved hole is centrally located on the flat partition plate, which forms two longitudinal stone partitions and two transverse stone partitions. The sealing structure includes snap-fit ​​grooves and sliding sealing plates. Two snap-fit ​​grooves are symmetrically arranged laterally with their openings facing inwards. The two snap-fit ​​grooves are respectively fixedly connected to the two transverse stone partitions. The two transverse ends of the sliding sealing plate are respectively inserted into the openings of the snap-fit ​​grooves on both sides. The sliding sealing plate slides along the snap-fit ​​grooves to open and close the single-sided vibration pre-reserved hole.

[0010] The snap-fit ​​sliding groove is made of steel with a C-shaped cross-section and includes a base plate, side plates, and a top plate. The base plate is fixed to the horizontal partition plate. There is an adaptation groove on the bottom of each of the two horizontal sides of the sliding sealing plate. The adaptation groove is adapted to the thickness of the base plate. The bottom surface of the sliding sealing plate is flush with the bottom surface of the base plate. A handle is provided in the center of the top surface of the sliding sealing plate.

[0011] The L-side keel also includes the L-side horizontal cross keel that connects the L-side vertical dividing keels horizontally. The L-side horizontal cross keel includes the L-side top keel fixedly connected at the top, the L-side bottom keel fixedly connected at the bottom, and the L-side back keel fixedly connected between non-flat positions.

[0012] The opposite keel includes opposite vertical dividing keels that correspond one-to-one with the left and right sides of the L-side vertical dividing keel, and also includes opposite horizontal cross keels that connect the opposite vertical dividing keels horizontally. The opposite horizontal cross keel includes opposite top keel fixedly connected between the top ends, opposite bottom keel fixedly connected between the bottom ends, and opposite back keel.

[0013] The L-side top keel and the opposite side top keel are detachably connected by a top tie structure. The top tie structure includes tie angle steel plates arranged symmetrically on the left and right sides, with at least two sets arranged along the stone direction. The tie angle steel plates include horizontal and vertical limbs. The horizontal limbs on both sides are fixedly connected to the L-side top keel and the opposite side top keel, respectively. The vertical limbs on both sides are provided with tie holes. The structure also includes a horizontal bolt tie rod that runs horizontally through the tie holes on both sides. The horizontal bolt tie rod is detachably connected to the vertical limb by a nut.

[0014] The L-shaped bottom keel and the opposite bottom keel are placed on the top surface of the bridge deck structure. The L-shaped bottom keel and the opposite bottom keel are detachably connected to the bridge deck structure through bottom fixing structures. The number of bottom fixing structures is the same as that of the flat diaphragm and they are set one by one. The bottom fixing structure includes anchoring holes opened on the L-shaped bottom keel and the opposite bottom keel, and also includes anchors that are vertically inserted into the bridge deck structure through the anchoring holes.

[0015] The vertical dividing keels at the front and rear ends of the L-side panel are called L-side end keels. The L-side end keels have L-side flange holes. Adjacent L-side end keels are detachably connected by flange connectors that pass through the L-side flange holes. The vertical dividing keels at the front and rear ends of the opposite side panel are called opposite side end keels. The opposite side end keels have opposite side flange holes. Adjacent opposite side end keels are detachably connected by flange connectors that pass through the opposite side flange holes.

[0016] The inclination angle of the flat plate is 0-15 degrees, and the transverse formwork is made of steel or wood.

[0017] The opposite panel, from top to bottom, includes an upper vertical plate, an outer sloping plate, and a lower vertical plate.

[0018] Compared with the prior art, this utility model has the following features and beneficial effects:

[0019] This invention solves the problems of ordinary wooden formwork failing to guarantee the quality of chamfering construction and the inability to use vibrators to release air bubbles from concrete on the sides of flat surfaces, thus affecting the quality of pouring.

[0020] This invention eliminates the need for wooden formwork by using steel formwork, allowing for multiple reuses and reducing formwork waste. Furthermore, the formwork at the curved chamfered corner is integrally machined into an arc shape according to the curbstone's dimensions, and a single-sided vibration pre-reserved hole is designed on the flat side of the L-shaped side formwork. Through this hole, with the curved chamfered corner as the boundary, the curbstone concrete is fully vibrated in two stages, allowing air bubbles on the concrete surface to be fully squeezed out through the single-sided vibration pre-reserved hole and the top of the side formwork in each stage.

[0021] In this invention, the single-sided vibration pre-reserved hole is provided with an openable and closable sealing structure, which can close the single-sided vibration pre-reserved hole after the first stage of vibration is completed, thereby ensuring the pouring quality of the curbstone.

[0022] The top tie structure and bottom fixing structure of this utility model are both integrated with the side mold design. They can be connected by horizontal bolts, tie rods and anchors respectively, resulting in a stable structure. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model and the location of the pre-reserved hole for single-sided vibration.

[0025] Figure 2 yes Figure 1 A schematic diagram of the cross-section of the pre-reserved hole for single-sided vibration after the sealing structure has been covered.

[0026] Figure 3 yes Figure 2 A magnified view of a portion of the pre-reserved hole for single-sided vibration compaction.

[0027] Figure 4 yes Figure 3 A schematic diagram of the central sealing structure.

[0028] Figure label:

[0029] 1 - Curbstone;

[0030] 2-L side mold, 21-L side panel, 211-L upper side vertical plate, 212-L lower side vertical plate, 213-arc chamfer, 214-flat partition plate, 22-L side vertical partition keel, 221-L side flange hole, 23-L side top keel, 24-L side bottom keel, 25-L side back rib keel;

[0031] 3 - Opposite side mold, 31 - Opposite side panel, 311 - Opposite side upper vertical plate, 312 - Outer inclined plate, 313 - Opposite side lower vertical plate, 32 - Opposite side vertical partition keel, 321 - Opposite side flange hole, 33 - Opposite side top keel, 34 - Opposite side bottom keel, 35 - Opposite side back rib keel;

[0032] 4 - Horizontal stone template; 5 - Single-sided vibratory compaction pre-reserved hole;

[0033] 6 - Sealing structure, 61 - Snap-on groove, 611 - Base plate, 612 - Side plate, 613 - Top plate, 62 - Sliding sealing plate, 621 - Adaptive groove, 63 - Handle;

[0034] 7 - Top tie structure, 71 - Tie angle steel plate, 711 - Horizontal leg, 712 - Vertical leg, 713 - Tie hole, 72 - Horizontal bolt tie rod, 73 - Nut;

[0035] 8 - Bottom fixing structure, 81 - Anchor hole, 82 - Anchor;

[0036] 9 - Bridge deck structure. Detailed Implementation

[0037] See the examples. Figure 1-4As shown, a single-sided vibratory steel formwork for cast-in-place curbstone includes side molds enclosing the four sides of the curbstone 1. The side molds include a longitudinal template and a transverse template 4. The longitudinal template is set along the left and right sides, including an L-shaped side mold 2 and an opposite side mold 3. The L-shaped side mold 2 includes an L-shaped side panel 21 and an L-shaped side joist. The opposite side mold 3 includes an opposite side panel 31 and an opposite side joist. The top of the L-shaped side joist is horizontally connected to the top of the opposite side joist. The transverse template 4 is sealed at the front and rear ends of the longitudinal template.

[0038] The L-side panel 21 includes, from top to bottom, an upper vertical plate 211, a flat plate, and a lower vertical plate 212. The bottom end of the upper vertical plate 211 and the inner end of the flat plate form an integrally formed arc-shaped chamfer 213. The L-side keel includes L-side vertical dividing keels 22 that are spaced along the outer surface of the L-side panel 21 in the direction of the stone. The flat plate is divided by the L-side vertical dividing keels 22 to form a set of flat partitions 214. The flat partitions 214 have corresponding single-sided vibration pre-reserved holes 5 and a sealing structure 6 that can be opened and closed for the single-sided vibration pre-reserved holes 5.

[0039] In this embodiment, the inclination angle of the flat plate is 0-15 degrees, and the horizontal template 4 is a steel template or a wooden template. The opposite side panel 31 includes, from top to bottom, an opposite upper vertical plate 311, an outer inclined plate 312, and an opposite lower vertical plate 313.

[0040] In this embodiment, the single-sided vibration pre-reserved hole 5 is rectangular and centrally located on the flat partition plate 214. The flat partition plate 214 forms two stone-direction partitions and two stone-direction partitions. The sealing structure 6 includes a snap-fit ​​groove 61 and a sliding sealing plate 62. The snap-fit ​​groove 61 is symmetrically arranged in the transverse direction with its opening facing inward. The two snap-fit ​​grooves 61 are respectively fixedly connected to the two stone-direction partitions. The two transverse ends of the sliding sealing plate 62 are respectively inserted into the openings of the snap-fit ​​grooves 61 on both sides. The sliding sealing plate 62 slides along the snap-fit ​​groove 61 to open and close the single-sided vibration pre-reserved hole 5.

[0041] The snap-fit ​​groove 61 is made of steel and has a C-shaped cross-section. It includes a base plate 611, a side plate 612, and a top plate 613. The base plate 611 is fixed to the horizontal partition. The sliding sealing plate 62 is rectangular and has an adaptation groove 621 on each of its horizontal bottom sides. The adaptation groove 621 is adapted to the thickness of the base plate 611. The bottom surface of the sliding sealing plate 62 is flush with the bottom surface of the base plate 611. A handle 63 is provided in the center of the top surface of the sliding sealing plate 62.

[0042] In this embodiment, the L-side keel also includes an L-side horizontal cross keel that horizontally connects the L-side vertical dividing keels 22. The L-side horizontal cross keel includes an L-side top keel 23 fixedly connected to the top end, an L-side bottom keel 24 fixedly connected to the bottom end, and an L-side back keel 25 fixedly connected to the non-flat position.

[0043] The opposite keel includes opposite vertical partition keels 32 that correspond one-to-one with the left and right sides of the vertical partition keel 22 on the L side, and also includes opposite horizontal cross keels that connect the opposite vertical partition keels horizontally. The opposite horizontal cross keel includes opposite top keel 33 fixedly connected between the top ends, opposite bottom keel 34 fixedly connected between the bottom ends, and opposite back keel 35.

[0044] In this embodiment, the L-side top keel 23 and the opposite-side top keel 33 are detachably connected by a top tie structure 7. The top tie structure includes tie angle steel plates 71 arranged symmetrically on the left and right sides, with at least two sets arranged along the stone direction. The tie angle steel plates 71 include horizontal limbs 711 and vertical limbs 712. The horizontal limbs 711 on both sides are fixedly connected to the L-side top keel 23 and the opposite-side top keel 33, respectively. The vertical limbs 712 on both sides are provided with tie holes 713. The structure also includes a transverse bolt tie rod 72 that runs horizontally through the tie holes 713 on both sides. The transverse bolt tie rod 72 is detachably connected to the vertical limbs 712 by a nut 73.

[0045] In this embodiment, the L-side bottom keel 24 and the opposite side bottom keel 34 are placed on the top surface of the bridge deck structure. The L-side bottom keel 24 and the opposite side bottom keel 34 are detachably connected to the bridge deck structure 9 through bottom fixing structures 8. The number of bottom fixing structures 8 is the same as that of the flat partitions 214, and they are arranged one-to-one. The bottom fixing structure 8 includes anchoring holes 81 opened on the L-side bottom keel 24 and the opposite side bottom keel 34, and also includes anchors 82 that are vertically inserted into the bridge deck structure 9 through the anchoring holes 81. The anchors 82 can be expansion bolts.

[0046] In this embodiment, the vertical dividing keel 22 provided at the front and rear ends of the L side panel 21 is the L side end keel. The L side end keel has an L side flange hole 221. Adjacent L side end keels are detachably connected by a flange connector that passes through the L side flange hole 221. The vertical dividing keel 32 provided at the front and rear ends of the opposite side panel is the opposite side end keel. The opposite side end keel has an opposite side flange hole 321. Adjacent opposite side end keels are detachably connected by a flange connector that passes through the opposite side flange hole 321. After connection, the side mold is extended to ensure the casting of a longer curb stone size.

[0047] The construction process of this utility model is as follows:

[0048] Step 1: Design the dimensions of each part of the side mold according to the shape of the curbstone 1, and prefabricate them in the factory;

[0049] Step 2: Place the L-side bottom keel 24 and the opposite side bottom keel 34 on the top surface of the bridge deck structure, and then detachably connect the L-side bottom keel 24 and the opposite side bottom keel 34 to the bridge deck structure 9 through the bottom fixing structure 8 to fix the bottom of the L-side mold 2 and the opposite side mold 3.

[0050] Step 3: Pass both ends of the transverse bolt tie rod 72 through the tie holes 713 on the two vertical limbs 712 respectively and anchor them with nuts for detachable connection, thereby fixing the top of the L-side mold 2 and the opposite side mold 3;

[0051] Step 4: Install the transverse stone template 4 to form the side formwork.

[0052] Step 5: Slide the sliding sealing plate 62 along the snap-fit ​​groove 61 to open the single-sided vibration pre-reserved hole 5;

[0053] Step 6: Pour the first stage of concrete for the curbstone 1 up to the bottom of the curved chamfer 213. Then, use a vibrator to fully vibrate the concrete in the pre-reserved holes 5 on one side to ensure that the air bubbles on the concrete surface can be fully squeezed out. Then, smooth it manually.

[0054] Step 7: Pull the handle 63 to slide the sliding sealing plate 62 along the snap-fit ​​groove 61 to close the single-sided vibration reserved hole 5;

[0055] Step 8: Pour the second stage of concrete for curbstone 1, and then use a vibrator to fully vibrate the concrete at the top opening of the side formwork to ensure that air bubbles can be fully squeezed out from the concrete surface, and then smooth it manually.

Claims

1. A single-sided vibratory steel formwork for cast-in-place curb stones, characterized in that: The side formwork includes a side mold enclosing the four sides of the curbstone (1). The side mold includes a stone-direction mold and a transverse stone-direction mold (4). The stone-direction mold is set along the length of the left and right sides, including an L-shaped side mold (2) and an opposite side mold (3). The L-shaped side mold (2) includes an L-shaped side panel (21) and an L-shaped side joist. The opposite side mold (3) includes an opposite side panel (31) and an opposite side joist. The top of the L-shaped side joist is horizontally connected to the top of the opposite side joist. The transverse stone-direction mold (4) is sealed at the front and rear ends of the stone-direction mold. The L-side panel (21) includes, from top to bottom, an upper vertical plate (211), a flat plate, and a lower vertical plate (212). The bottom end of the upper vertical plate (211) and the inner end of the flat plate are integrally formed arc-shaped chamfers (213). The L-side keel includes L-side vertical dividing keels (22) that are spaced along the outer surface of the L-side panel (21) in the direction of the stone. The flat plate is divided by the L-side vertical dividing keel (22) to form a set of flat partitions (214). The flat partitions (214) have corresponding single-sided vibration pre-reserved holes (5). The flat partitions (214) are provided with a sealing structure (6) that can be opened and closed for the single-sided vibration pre-reserved holes (5).

2. The single-sided vibratory steel formwork for cast-in-place curb stones according to claim 1, characterized in that: The single-sided vibration pre-reserved hole (5) is centrally located on the flat partition plate (214). The flat partition plate (214) forms two stone-direction partition plates and two stone-direction partition plates. The sealing structure (6) includes a snap-fit ​​groove (61) and a sliding sealing plate (62). The snap-fit ​​groove (61) is symmetrically arranged in the transverse direction with its opening facing inward. The two snap-fit ​​grooves (61) are respectively fixedly connected to the two stone-direction partition plates. The transverse ends of the sliding sealing plate (62) are respectively inserted into the openings of the two snap-fit ​​grooves (61). The sliding sealing plate (62) slides along the snap-fit ​​groove (61) to form the opening and closing of the single-sided vibration pre-reserved hole (5).

3. The cast-in-place curbstone single-sided vibratory steel formwork according to claim 2, characterized in that: The snap-fit ​​groove (61) is made of steel and has a C-shaped cross-section. It includes a bottom plate (611), a side plate (612), and a top plate (613). The bottom plate (611) is fixed on the horizontal partition. The bottom of the horizontal sides of the sliding sealing plate (62) is provided with an adaptation groove (621). The adaptation groove (621) is adapted to the thickness of the bottom plate (611). The bottom surface of the sliding sealing plate (62) is flush with the bottom surface of the bottom plate (611). The top surface of the sliding sealing plate (62) is provided with a handle (63) in the center.

4. The single-sided vibratory steel formwork for cast-in-place curb stones according to claim 1, characterized in that: The L-side keel also includes the L-side horizontal cross keel that connects the L-side vertical dividing keels (22) horizontally. The L-side horizontal cross keel includes the L-side top keel (23) fixedly connected between the top ends, the L-side bottom keel (24) fixedly connected between the bottom ends, and the L-side back keel (25) fixedly connected between the non-flat positions.

5. The single-sided vibratory steel formwork for cast-in-place curb stones according to claim 4, characterized in that: The opposite keel includes the opposite vertical partition keel (32) which corresponds one-to-one with the left and right of the L-side vertical partition keel (22), and also includes the opposite horizontal keel that connects the opposite vertical partition keels. The opposite horizontal keel includes the opposite top keel (33) fixedly connected between the top ends, the opposite bottom keel (34) fixedly connected between the bottom ends, and the opposite back keel (35).

6. The single-sided vibratory steel formwork for cast-in-place curbstone as described in claim 5, characterized in that: The L-side top keel (23) and the opposite side top keel (33) are detachably connected by a top tie structure (7). The top tie structure includes tie angle steel plates (71) arranged symmetrically on the left and right sides, with at least two sets arranged along the stone direction. The tie angle steel plates (71) include horizontal limbs (711) and vertical limbs (712). The horizontal limbs (711) on both sides are fixedly connected to the L-side top keel (23) and the opposite side top keel (33) respectively. The vertical limbs (712) on both sides are provided with tie holes (713). The structure also includes a horizontal bolt tie rod (72) that runs horizontally between the tie holes (713) on both sides. The horizontal bolt tie rod (72) is detachably connected to the vertical limb (712) by a nut (73).

7. The cast-in-place curbstone single-sided vibratory steel formwork according to claim 5, characterized in that: The L-side bottom keel (24) and the opposite side bottom keel (34) are placed on the top surface of the bridge deck structure. The L-side bottom keel (24) and the opposite side bottom keel (34) are detachably connected to the bridge deck structure (9) through the bottom fixing structure (8). The number of bottom fixing structures (8) is the same as that of the flat diaphragm (214) and they are set one by one. The bottom fixing structure (8) includes anchor holes (81) opened on the L-side bottom keel (24) and the opposite side bottom keel (34), and also includes anchors (82) that are vertically inserted into the bridge deck structure (9) through the anchor holes (81).

8. The single-sided vibratory steel formwork for cast-in-place curbstone as described in claim 5, characterized in that: The vertical dividing keel (22) provided at the front and rear ends of the L side panel (21) is the L side end keel. The L side end keel has an L side flange hole (221). Adjacent L side end keels are detachably connected by a flange connector that passes through the L side flange hole (221). The vertical dividing keel (32) provided at the front and rear ends of the opposite side panel is the opposite side end keel. The opposite side end keel has an opposite side flange hole (321). Adjacent opposite side end keels are detachably connected by a flange connector that passes through the opposite side flange hole (321).

9. The single-sided vibratory steel formwork for cast-in-place curb stones according to claim 1, characterized in that: The inclination angle of the flat plate is 0-15 degrees, and the transverse stone template (4) is a steel template or a wooden template.

10. The cast-in-place curbstone single-sided vibratory steel formwork according to any one of claims 1-9, characterized in that: The opposite panel (31) includes, from top to bottom, an opposite upper vertical plate (311), an outer inclined plate (312), and an opposite lower vertical plate (313).

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