CN114277823B - Bottom sleeve box - Google Patents
Bottom sleeve box Download PDFInfo
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- CN114277823B CN114277823B CN202111642809.0A CN202111642809A CN114277823B CN 114277823 B CN114277823 B CN 114277823B CN 202111642809 A CN202111642809 A CN 202111642809A CN 114277823 B CN114277823 B CN 114277823B
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- plate
- box
- bottom plate
- plates
- stiffening ribs
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- 238000007789 sealing Methods 0.000 claims abstract description 50
- 230000008093 supporting effect Effects 0.000 claims description 79
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000010276 construction Methods 0.000 abstract description 28
- 210000003205 muscle Anatomy 0.000 abstract description 10
- 230000002093 peripheral effect Effects 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 239000003351 stiffener Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a bottom-covered box, which is characterized by comprising a box bottom plate, box side plates and a bottom-sealing concrete layer, wherein the box side plates are provided with a plurality of box bottom plates and are jointly enclosed to form a frame-shaped structure, the bottom-sealing concrete is laid above the box bottom plate, one side of the box bottom plate, which is far away from the bottom-sealing concrete layer, is provided with stiffening ribs, one side of the box bottom plate, which is close to the bottom-sealing concrete layer, is provided with anchor bars, and the anchor bars penetrate through the box bottom plate and are connected with the stiffening ribs, and are anchored in the bottom-sealing concrete layer. Set up the anchor muscle on the pouring jacket bottom plate, the anchor muscle is connected with the stiffening rib, and the anchor muscle anchor is in the back cover concrete layer, and after the main joist was demolishd, the connection structure that utilizes anchor muscle and back cover concrete layer carries the pouring jacket bottom plate and hangs, promotes the joint strength of pouring jacket bottom plate and back cover concrete layer, prevents the landing of pouring jacket curb plate, has improved cushion cap construction safety.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a bottom sleeve box.
Background
The construction of the underwater high-pile cap generally adopts a bottom-covered box scheme, after the installation of the box, the bottom-sealing concrete is poured, a closed structure is formed, a lifting system is dismantled, the box is converted and supported to the joint of the bottom-sealing concrete and the pile foundation, water is pumped in the box, an operation dry environment is provided for the construction of the cap, and the cap is constructed after the steel pile casing and the pile foundation above the bottom-sealing concrete are removed.
The bottom-containing box is generally composed of a bottom plate, side plates, a lifting system and an inner supporting system. Before the concrete placement of back cover, carry the suspension system and hang the bottom plate main joist through carrying, the curb plate is placed in the bottom plate top, and whole cover box supports on the steel protects a section of thick bamboo. After the bottom sealing concrete pouring is completed, the lifting system is required to be dismantled, after the main keel of the bottom plate is dismantled and recycled, only the residual panel and the small stiffening rib structure of the bottom plate are small in rigidity and large in deformation, the supporting capacity of the side plate is weak, after the pouring jacket pumps water, the side plate only provides weak support by means of the binding force between the side plate and the bottom sealing concrete and the bottom plate, the side plate is easy to separate from the bottom sealing concrete under the action of dead weight and side water pressure, the pouring jacket leaks water, the later plugging is very difficult, and the construction risk is high.
Disclosure of Invention
The invention aims to provide a bottom sleeve box capable of preventing a sleeve box side plate from being separated from bottom sealing concrete and ensuring construction safety of a sleeve box bearing platform.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a there is end case, includes case bottom plate, case curb plate and back cover concrete layer, the case curb plate is equipped with the polylith and encloses jointly and form frame structure, back cover concrete shop in the top of case bottom plate, one side that the back cover concrete layer was kept away from to the case bottom plate is equipped with the stiffening rib, one side that the case bottom plate is close to the back cover concrete layer is equipped with the anchor muscle, the anchor muscle passes the case bottom plate and is connected with the stiffening rib, just the anchor muscle anchors in the back cover concrete layer.
Further set up: the box bottom plate comprises a plurality of supporting bottom plates which are arranged in parallel at intervals, at least one avoidance hole through which the steel protective cylinder can pass is formed in each supporting bottom plate, and the stiffening ribs are arranged on the supporting bottom plates and extend along the length direction of the supporting bottom plates.
Further set up: the support bottom plate has offered at least two along its length direction interval dodge the hole, the support bottom plate includes two tip backup pads and at least one middle part backup pad, two the tip backup pad corresponds respectively and sets up in the both ends of support bottom plate and be used for supporting the cover case curb plate, the middle part backup pad sets up between two tip backup pads, semicircular dodge the breach has all been seted up to the one end that tip backup pad and middle part backup pad are close to each other and forms jointly dodge the hole.
Further set up: the stiffening ribs comprise first stiffening ribs and second stiffening ribs, the first stiffening ribs are arranged on the end supporting plates, the second stiffening ribs are arranged on the middle supporting plates, and the anchor bars are arranged on the end supporting plates and penetrate through the end supporting plates to be connected with the first stiffening ribs.
Further set up: the end support plate is provided with a plurality of first stiffening ribs at intervals along the width direction of the support bottom plate, the support bottom plate further comprises anti-cantilever rods, the anti-cantilever rods are arranged on the plurality of first stiffening ribs in a crossing mode and are vertically connected with the plurality of first stiffening ribs, and the anti-cantilever rods are located on one side, far away from the back cover concrete layer, of the side plate of the box.
Further set up: the opposite end backup pad of one end of middle part backup pad is kept away from to first stiffening rib outwards stretches out, the anti-ram is connected in the one end that middle part backup pad was kept away from to first stiffening rib and is located one side that first stiffening rib is close to the end backup pad.
Further set up: the first stiffening ribs extend to the avoidance holes, and the lengths of the first stiffening ribs gradually decrease from two sides of the end supporting plate to the middle.
Further set up: the middle support plate is provided with a plurality of second stiffening ribs at intervals along the width direction of the support bottom plate, the support bottom plate further comprises auxiliary rods, the auxiliary rods are arranged on the plurality of second stiffening ribs in a crossing mode and are vertically connected with the plurality of second stiffening ribs, and the auxiliary rods are connected to one side, far away from the middle support plate, of the second stiffening ribs.
Further set up: the inner clamping plate and the outer clamping plate are respectively connected with the bottom plate of the box, and are respectively arranged on the inner side and the outer side of the side plate of the box and respectively abutted with the side plate of the box.
Further set up: the inner clamping plate is anchored in the back cover concrete layer
Compared with the prior art, the scheme of the invention has the following advantages:
1. in the bottom-covered box, the anchor bars are arranged on the bottom plate of the box and connected with the stiffening ribs, the anchor bars are anchored in the bottom-sealing concrete layer, and after the main joist is removed, the bottom plate of the box is lifted by utilizing the connection structure of the anchor bars and the bottom-sealing concrete layer, so that the connection strength of the bottom plate of the box and the bottom-sealing concrete layer is improved, the side plates of the box are prevented from sliding off, and the construction safety of a bearing platform is improved.
2. In the bottom-covered box, the box bottom plate consists of a plurality of supporting bottom plates, each supporting bottom plate consists of the end supporting plates and the middle supporting plate, and the supporting bottom plates are arranged at intervals, so that the supporting strength of the box side plates can be met, the use of steel materials of the box bottom plate can be reduced, the recycling rate can be improved, and the construction cost can be reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a construction system for a bottom-box construction in accordance with one embodiment of the present invention;
FIG. 2 is a schematic view of the installation of the bottom plate of the boot and the supporting keel assembly according to an embodiment of the invention;
FIG. 3 is a schematic diagram showing the splicing of the support base plate and the auxiliary plate according to an embodiment of the present invention;
FIG. 4 is a top view of an end support plate in one embodiment of the invention;
FIG. 5 is a side view of an end support plate in one embodiment of the invention;
FIG. 6 is a top view of a middle support plate in one embodiment of the invention;
FIG. 7 is a side view of a middle support plate in one embodiment of the invention;
FIG. 8 is an enlarged schematic view of FIG. 1 at A;
FIG. 9 is a top view of a bottomless case in one embodiment of the invention;
fig. 10 is a schematic diagram of an installation method of a bottom-box construction system in an embodiment of the invention.
In the figure, 1, a bottom sleeve box; 11. a bottom plate of the box; 111. anchor bars; 112. a support base plate; 1121. avoidance holes; 1122. an end support plate; 1123. a middle support plate; 1124. a first stiffener; 1125. a second stiffener; 1126. an anti-cantilever rod; 1127. an auxiliary lever; 12. a sleeve side plate; 13. a back cover concrete layer; 14. an inner clamping plate; 15. an outer clamping plate; 16. peripheral wailing; 17. a pull rod; 18. an inner support; 2. lifting device; 21. a jack; 22. lifting the shoulder pole beam; 23. a boom; 3. a support keel device; 4. an auxiliary plate; 5. and (5) a steel casing.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1 to 10, the invention provides a construction system of a bottom-containing box, which comprises a bottom-containing box 1, a lifting device 2 and a supporting keel device 3, wherein the bottom-containing box 1 comprises a box bottom plate 11 and a box side plate 12, the lifting device 2 is used for being installed at the top of a steel casing 5 and lifting the supporting keel device 3, the supporting keel device 3 is used for being connected with the steel casing 5 and supporting the box bottom plate 11, the box side plate 12 is provided with a plurality of pieces and jointly encloses to form a frame-shaped structure, a bottom-sealing concrete layer 13 is paved above the box bottom plate 11, a stiffening rib is arranged on one side, far away from the bottom-sealing concrete layer 13, of the box bottom plate 11, an anchor bar 111 is arranged on one side, close to the bottom-sealing concrete layer 13, of the box bottom plate 11, the anchor bar 111 penetrates through the box bottom plate 11 and is connected with the stiffening rib, and the anchor bar 111 is anchored in the bottom-sealing concrete layer 13.
Through setting up the anchor muscle 111 in the pouring jacket bottom plate 11, anchor muscle 111 is connected with the stiffening rib, with anchor muscle 111 anchor in the bottom sealing concrete layer 13, improves the joint strength of pouring jacket bottom plate 11 and bottom sealing concrete layer 13 to promote the supporting strength of pouring jacket bottom plate 11 to pouring jacket curb plate 12, prevent the phenomenon that pouring jacket curb plate 12 landing takes place to leak, improve cushion cap construction safety.
In this embodiment, the bottom plate 11 of the box comprises a plurality of support bottom plates 112 arranged in parallel at intervals, each support bottom plate 112 is provided with at least one avoidance hole 1121 through which the steel casing 5 can pass, and the stiffening ribs are arranged on the support bottom plates 112 and extend along the length direction of the support bottom plates 112. In this embodiment, the supporting base plate 112 is provided with 3 blocks, and each supporting base plate 112 is correspondingly sleeved on the periphery of two steel casings 5.
In this embodiment, an auxiliary plate 4 is disposed between two adjacent support bottom plates 112, and the auxiliary plate 4 is used for temporarily splicing with the support bottom plates 112 and providing temporary support for the side plates 12 of the box. Preferably, the auxiliary plates 4 are provided with 4, and the auxiliary plates 4 are alternately arranged with the support base 112. The length of the auxiliary plate 4 is the same as that of the supporting bottom plate 112, and before pouring the back cover concrete, the auxiliary plate 4 is assembled with the supporting bottom plate 112, so that the bottom of the sleeve box is closed, the pouring of the back cover concrete is facilitated, after the pouring is finished, the auxiliary plate 4 can be removed and recycled, and the auxiliary plate is supported only by the supporting bottom plate 112, so that the steel consumption of the sleeve box bottom plate 11 is reduced, and the construction cost is reduced.
Further, the supporting base plate 112 is provided with at least two avoidance holes 1121 at intervals along the length direction thereof, the supporting base plate 112 includes two end supporting plates 1122 and at least one middle supporting plate 1123, the two end supporting plates 1122 are respectively and correspondingly arranged at two ends of the supporting base plate 112 and are used for supporting the box side plate 12, the middle supporting plate 1123 is arranged between the two end supporting plates 1122, and one ends of the end supporting plates 1122 and the middle supporting plate 1123, which are close to each other, are provided with semicircular avoidance notches and jointly form the avoidance holes 1121.
By dividing the supporting bottom plate 112 into the end supporting plates 1122 and the middle supporting plate 1123, the area of the steel plate is reduced, the steel plate can be assembled underwater, the construction difficulty is low, the bonding compactness of the supporting bottom plate 112 and the steel casing 5 can be ensured, and the casting molding of the bottom sealing concrete layer 13 is facilitated.
In this embodiment, two end support plates 1122 are provided and are respectively disposed at two end positions of the support base 112, one middle support plate 1123 is provided, and in other embodiments, two or more middle support plates 1123 may be provided, and the number of middle support plates 1123 depends on the number of steel casings 5 in each column. In the present embodiment, the end support plates 1122 have a shorter length in the longitudinal direction, the middle support plate 1123 has a longer length in the longitudinal direction, the end support plates 1122 are used to support the box side plates 12, and the middle support plate 1123 does not provide support to the box side plates 12.
Further, the stiffening ribs include a first stiffening rib 1124 and a second stiffening rib 1125, the first stiffening rib 1124 is disposed on the end support plate 1122, the second stiffening rib 1125 is disposed on the middle support plate 1123, and the anchor rib 111 is disposed on the end support plate 1122 and connected with the first stiffening rib 1124 through the end support plate 1122. In this embodiment, the first stiffener 1124 and the second stiffener 1125 each extend along the length of the support base 112.
Preferably, a plurality of the first stiffening ribs 1124 are provided on the end support plate 1122 at intervals along the width direction of the support base 112, a plurality of the second stiffening ribs 1125 are provided on the middle support plate 1123 at intervals along the width direction of the support base 112, and the first stiffening ribs 1124 and the second stiffening ribs 1125 are located on the same straight line.
Through setting up first stiffening rib 1124 and second stiffening rib 1125, improved the structural strength of supporting baseplate 112, make supporting baseplate 112 be difficult for taking place to warp to can provide better supporting effect for the pouring jacket curb plate 12, can better keep laminating with bottom sealing concrete layer 13 moreover, guarantee the leakproofness of pouring jacket bottom plate 11, avoid appearing the phenomenon that leaks.
Further, the support base 112 further includes an anti-cantilever rod 1126, where the anti-cantilever rod 1126 spans over the plurality of first stiffening ribs 1124 and is perpendicularly connected to the plurality of first stiffening ribs 1124, and preferably, the anti-cantilever rod 1126 is welded to the first stiffening ribs 1124. The anti-cantilever rod 1126 is located at a side of the box side plate 12 away from the back cover concrete layer 13. Preferably, the end of the first stiffener 1124 remote from the central support plate 1123 extends outwardly relative to the end support plate 1122, and the anti-cantilever rod 1126 is connected to the end of the first stiffener 1124 remote from the central support plate 1123 and is located on the side of the first stiffener 1124 adjacent to the end support plate 1122.
By providing the anti-cantilever rod 1126, the anti-cantilever rod 1126 is connected with the plurality of first stiffening ribs 1124, so that the plurality of first stiffening ribs 1124 are connected to form a whole, and the overall structural strength of the end supporting plate 1122 is further improved.
Further, the support base 112 further includes an auxiliary rod 1127, the auxiliary rod 1127 is straddled on the plurality of second stiffening ribs 1125 and is perpendicularly connected to the plurality of second stiffening ribs 1125, and the auxiliary rod 1127 is connected to a side of the second stiffening ribs 1125 away from the middle support plate 1123. Preferably, the auxiliary rod 1127 is welded to the second stiffener 1125. By providing the auxiliary rods 1127, the auxiliary rods 1127 connect the plurality of second stiffening ribs 1125 to form a whole, further improving the overall structural strength of the middle support plate 1123.
Further, one ends of the first stiffening ribs 1124 extend to the avoidance holes 1121, and two ends of the second stiffening ribs 1125 extend to the two avoidance holes 1121 respectively, in this embodiment, the lengths of the first stiffening ribs 1124 gradually decrease from two sides of the end support plate 1122 to the middle, and the lengths of the second stiffening ribs 1125 gradually decrease from two sides of the middle support plate 1123 to the middle.
In this embodiment, the end of the anchor bar 111 far away from the stiffening rib is in a hook shape, preferably is bent at 90 °, and the end of the anchor bar 111 is set to a bent structure, so that the anchoring effect of the anchor bar and the bottom sealing concrete layer 13 is improved, and the box bottom plate 11 is not easy to separate from the bottom sealing concrete layer 13.
Further, the bottom sleeve 1 further comprises an inner clamping plate 14 and an outer clamping plate 15, the inner clamping plate 14 and the outer clamping plate 15 are respectively connected with the sleeve bottom plate 11, and the inner clamping plate 14 and the outer clamping plate 15 are respectively arranged on the inner side and the outer side of the side plate and respectively abutted with the sleeve side plate 12. The inner clamping plate 14 and the outer clamping plate 15 are respectively welded with the bottom plate 11 of the box. In this embodiment, the two end portions of the bottom of the box are arc-shaped, the middle portion is rectangular, and when the construction of the back cover concrete is completed, the auxiliary plates 4 below the arc-shaped portions of the two ends of the box are removed. Thus, in this embodiment, the inner and outer clamping plates 14, 15 are only straight sections on either side of the sleeve. Further, the inner clamping plate 14 is anchored in the back cover concrete layer 13. The inner and outer clamp plates 14, 15 are attached to end support plates 1122.
Through set up interior cardboard 14 and outer cardboard 15 in the inside and outside both sides of case curb plate 12, interior cardboard 14 and outer cardboard 15 are spacing to the case curb plate 12 jointly, outer cardboard 15 can prevent moreover that the bottom of case curb plate 12 from taking place to warp outward, avoid producing the clearance between case curb plate 12 and the back cover concrete layer 13 and leading to leaking, and interior cardboard 14 can anchor in the back cover concrete layer 13, utilize interior cardboard 14 to carry out the hoist to case bottom plate 11, promote the joint strength of case bottom plate 11 and back cover concrete layer 13, prevent that the separation from taking place for case bottom plate 11 and case curb plate 12, promote the security of cushion cap construction.
Further, the bottom case 1 further includes a peripheral side member 16, the peripheral jail is straddled on the outer surfaces of the case side plates 12 and is fixedly connected with the case side plates 12, the peripheral jail is provided with a pull rod 17 in a penetrating manner, the case side plates 12 are provided with through holes through which the pull rod 17 can penetrate, and the pull rod 17 penetrates through the through holes to connect and fix the peripheral side member 16 with the case side plates 12.
Preferably, the height of the periphery jail is lower than the top surface of the back cover concrete layer 13, and the tie rod 17 passes through the box side plate 12 and is anchored in the back cover concrete layer 13. One end of the pull rod 17 far away from the back cover concrete layer 13 is provided with an anchor nut, the anchor nut is in threaded connection with the pull rod 17, and the anchor nut is abutted against one side of the periphery jail far away from the box sleeve side plate 12 and is used for tightly pressing and attaching the box sleeve side plate 12 and the back cover concrete layer 13. Preferably, a water stop pad is arranged at the perforation, and the pull rod 17 is in sealing connection with the water stop pad.
Through the outside surface mounting peripheral wall 16 at the case curb plate 12, peripheral wall 16 strides on locating a plurality of case curb plates 12, connects a plurality of case curb plates 12 to form wholly, has promoted the connection reliability of case curb plate 12, prevents that case curb plate 12 from taking place to warp or landing, has improved the overall structure stability of having a bottom case 1. In addition, the outer peripheral wall 16 penetrates into the inner side of the box side plate 12 through the pull rod 17, the pull rod 17 is anchored in the back cover concrete, looseness of the pull rod 17 is not easy to occur, and structural stability of the outer peripheral wall 16 is ensured. And the anchor nut at the end part of the pull rod 17 can be abutted against the outer wall of the periphery jail, so that the sleeve side plate 12 and the back cover concrete layer 13 are tightly attached, the connection tightness of the sleeve side plate 12 and the back cover concrete layer 13 is improved, and the phenomenon that the sleeve side plate 12 slides down is prevented. The water stop pad structure is arranged to seal the perforation position, so that the waterproof sealing performance of the sleeve box is improved.
Further, the outer side surface of the box side plate 12 is provided with a support bracket (not shown) provided below the outer periphery jail and for supporting the outer periphery jail. Through setting up the support bracket, utilize the support bracket to support to the peripheral wail 16, reduce the atress of pull rod 17, avoid pull rod 17 atress too big emergence deformation and make peripheral wail 16 drop, further promote the structural stability of peripheral wail 16.
Further, the supporting keel device 3 comprises a plurality of main keels which are arranged in parallel, the stiffening ribs are mutually perpendicular to the main keels, and the stiffening ribs are erected above the main keels. In this embodiment, during the construction process, the bottom plate 11 of the box is not welded to the main joist, and is only supported on the main joist, and after the pouring of the bottom sealing concrete layer 13 is completed, the main joist needs to be removed and recovered, and the auxiliary plate 4 is also removed and recovered.
Further, the lifting device 2 comprises a jack 21, a lifting shoulder pole beam 22 and a hanging rod 23, wherein the jack 21 is used for being installed at the top of the steel pile casing 5, the lifting shoulder pole beam 22 is installed on the jack 21, and the hanging rod 23 is connected with the lifting shoulder pole beam 22 and used for lifting the supporting keel device 3. Before pouring the back cover concrete layer 13, the suspender 23 is required to be connected with the main keel, and the main keel is lifted by the suspender 23, so that the construction safety in the process of pouring the back cover concrete layer 13 is ensured.
Further, the bottom casing 1 further includes an inner support 18, where the inner support 18 is connected between two casing side plates 12 disposed opposite to each other, and provides an inner support for the casing side plates 12, so as to prevent the casing side plates 12 from toppling inwards.
The invention also provides a construction method of the bottom sleeve box 1, which comprises the following steps:
building a supporting keel device 3 on the steel casing 5;
a sleeve bottom plate 11 and a sleeve side plate 12 are sequentially arranged on the supporting keel device 3;
lifting the supporting keel device 3 by means of the lifting device 2;
pouring a bottom sealing concrete layer 13 on the box bottom plate 11 and anchoring anchor bars 111 connected to the box bottom plate 11 in the bottom sealing concrete layer 13;
and removing the supporting keel device 3 and the lifting device 2 after draining the water in the sleeve box, and cutting off the steel casing 5 above the bottom sealing concrete layer 13.
Through anchor 111 anchor in bottom sealing concrete layer 13 when pouring bottom sealing concrete layer 13, after pouring, promote the joint strength of cover box bottom plate 11 and bottom sealing concrete layer 13, prevent the landing of cover box curb plate 12, improved the construction safety of cushion cap.
Further, after the last installation of the box bottom plate 11 and the box side plate 12 on the supporting keel device 3, the following steps are included:
an inner support 18 is mounted inside the sleeve.
Further, before the step of lifting the supporting keel device 3 by means of the lifting device 2, the method further comprises the following steps:
and a lifting device 2 is arranged at the top of the steel casing 5.
Preferably, the jack 21 in the lifting device 2 is mounted on top of the steel casing 5, the lifting shoulder pole beam 22 is mounted on the jack 21, the boom 23 is mounted on the lifting shoulder pole beam 22 and the boom 23 is allowed to drop, and the boom 23 is used for connection with the supporting keel device 3.
Further, when the sleeve bottom plate 11 and the sleeve side plate 12 are sequentially installed on the supporting keel device 3, the method comprises the following steps:
the end support plates 1122 and the middle support plates 1123 in the box bottom plate 11 are spliced around the steel casing 5 to form the support bottom plates 112, and the auxiliary plates 4 are installed between the adjacent two support bottom plates 112.
Further provided is that after the step of removing the supporting keel device 3 and the lifting device 2 after the water in the sleeve box is drained, the method further comprises the following steps:
the auxiliary plate 4 is separated from the back cover concrete layer 13 and recovered.
In this embodiment, the auxiliary plate 4 and the supporting base plate 112 are not welded, but are only spliced, and after the pouring of the bottom sealing concrete layer 13 is completed, the auxiliary plate 4 is removed and recycled.
Further provided, prior to the step of splicing the end support plates 1122 in the box floor 11 with the middle support plates 1123 around the steel casing 5 to form the support floor 112, is a prefabricated end support plate 1122 comprising the steps of:
a plurality of first stiffening ribs 1124 are welded to the back surface of the end support plate 1122 such that the ends of the first stiffening ribs 1124 extend along the ends of the end support plate 1122, anti-cantilever rods 1126 are welded to the extending ends of the plurality of first stiffening ribs 1124, and anchor bars 111 are perforated in the end support plate 1122 and are inserted therein such that the anchor bars 111 are welded to the first stiffening ribs 1124.
Further provided, prior to the step of splicing the end support plates 1122 and the middle support plates 1123 in the box floor 11 around the steel casing 5 to form the support floor 112, is a prefabricated middle support plate 1123 comprising the steps of:
a plurality of second stiffening ribs 1125 are welded to the back surface of the middle support plate 1123, and auxiliary rods 1127 are welded to the side of the plurality of second stiffening ribs 1125 remote from the middle support plate 1123.
Further, in the step of sequentially installing the box bottom plate 11 and the box side plate 12 on the supporting keel device 3, the method comprises the following steps:
the supporting bottom plate 112 is supported on the supporting keel device 3 at intervals, the supporting bottom plate 112 and the supporting keel device 3 are used for installing the box side plate 12 on the box bottom plate 11, the inner clamping plate 14 and the outer clamping plate 15 are respectively and correspondingly installed on the inner side and the outer side of the bottom of the box side plate 12, and the inner clamping plate 14, the outer clamping plate 15 and the box bottom plate 11 are welded and fixed.
Further, after the step of sequentially installing the box bottom plate 11 and the box side plate 12 on the supporting keel device 3, the method further comprises the steps of:
an outer wall 16 is installed on the outer side wall of the bottom plate 11 of the box at a position lower than the height of the bottom sealing concrete layer 13, and the outer wall 16 is penetrated through the outer wall by a pull rod 17 and then penetrates into the inner side of the side plate 12 of the box.
Further, after the step of pouring the back cover concrete layer 13 on the box bottom plate 11, the method further comprises the following steps:
the anchor nut is mounted on the pull rod 17 such that the anchor nut abuts against the outer sidewall of the periphery jail 16.
The sleeve side plate 12 is tightly attached to the bottom sealing concrete layer 13 by means of the anchoring nuts and is abutted against the outer side wall of the periphery jail, and the bonding effect is better.
Further, before the step of installing the peripheral ridge 16 at a position lower than the height of the back cover concrete layer 13 on the outer side wall of the bottom plate 11 of the box, the method further comprises the steps of:
support brackets are mounted below the peripheral side rail 16 mounting locations on the outer side walls of the side box panels 12.
Further provided, after the step of penetrating inside the side panels 12 of the suitcase after the enclosing by means of the tie rod 17, is included the following steps: a water stop pad is installed at the perforated position of the sleeve side plate 12 where the pull rod 17 is installed.
In summary, the scheme of the invention has the following advantages:
1. according to the bottom-covered box construction system, the anchor bars are arranged in the box bottom plate and connected with the stiffening ribs, the anchor bars are anchored in the bottom-sealing concrete layer, and the connection strength of the box bottom plate and the bottom-sealing concrete layer is improved, so that the supporting strength of the box bottom plate to the box side plate is improved, the phenomenon of water leakage caused by sliding of the box side plate is prevented, and the construction safety of the bearing platform is improved.
2. In the bottom-covered box construction system, the auxiliary plates are arranged between the two adjacent supporting bottom plates and spliced with the supporting bottom plates, so that the bottom of the box is in a sealing structure, the pouring of the bottom-sealing concrete layer is facilitated, and after the pouring of the bottom-sealing concrete layer is completed, the auxiliary plates can be removed and recycled, the consumption of steel is reduced, and the construction cost is reduced.
3. In the construction system of the bottom-covered box, the inner clamping plates and the outer clamping plates are respectively arranged on the inner side and the outer side of the box side plate, the inner clamping plates and the outer clamping plates play a role in limiting the box side plate together, gaps between the box side plate and the bottom sealing concrete layer caused by tilting deformation of the bottom of the box side plate can be prevented, the tightness between the box side plate and the bottom sealing concrete layer is improved, in addition, the inner clamping plates are anchored in the bottom sealing concrete layer, and the inner clamping plates are connected with the box bottom plate, so that the connection stability of the box bottom plate and the bottom sealing concrete layer can be improved, and the phenomenon of water leakage between the box side plate and the box bottom plate caused by separation of the box side plate and the box bottom plate can be prevented.
4. In the bottom-covered box construction system, the outer wall of the box side plate is provided with the outer periphery, and the outer periphery jail is fixed on the outer wall of the box side plate by virtue of the pull rod and the anchor nut, so that the box side plate is tightly attached to the bottom-sealing concrete layer, the bonding effect is higher, the box side plate is prevented from being separated from the bottom-sealing concrete layer, and the construction safety of a bearing platform is improved.
The foregoing is only a partial embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (4)
1. The utility model provides a there is end case, includes case bottom plate, case curb plate and back cover concrete layer, the case curb plate is equipped with the polylith and encloses jointly and form frame structure, the back cover concrete shop in the top of case bottom plate, characterized by: the box bottom plate is provided with stiffening ribs on one side far away from the back cover concrete layer, one side of the box bottom plate, close to the back cover concrete layer, is provided with anchor bars, each anchor bar penetrates through the box bottom plate and is connected with each stiffening rib, each anchor bar is anchored in the back cover concrete layer, the box bottom plate comprises a plurality of support bottom plates which are arranged in parallel at intervals, each stiffening rib is arranged on each support bottom plate and extends along the length direction of each support bottom plate, each support bottom plate comprises two end support plates and at least one middle support plate, the two end support plates are respectively and correspondingly arranged at two ends of the support bottom plate and are used for supporting the box side plates, the middle support plates are arranged between the two end support plates, one ends, close to each other, of the end support plates and the middle support plates are respectively provided with semicircular avoidance notches and jointly form avoidance holes for a steel protection drum to penetrate through, an auxiliary plate is arranged between the adjacent two support bottom plates and is used for temporarily splicing with the support bottom plates and providing temporary support for the box side plates, and after the back cover concrete is poured, the auxiliary plates are separated from the back cover concrete layer and supported by the support bottom plates;
the stiffening ribs comprise first stiffening ribs and second stiffening ribs, the first stiffening ribs are arranged on the end supporting plates, the second stiffening ribs are arranged on the middle supporting plates, the anchor bars are arranged on the end supporting plates and penetrate through the end supporting plates to be connected with the first stiffening ribs, a plurality of first stiffening ribs are arranged on the end supporting plates at intervals along the width direction of the supporting bottom plate, the supporting bottom plate further comprises anti-cantilever rods, the anti-cantilever rods are arranged on the plurality of first stiffening ribs in a crossing mode and are vertically connected with the plurality of first stiffening ribs, and the anti-cantilever rods are located on one side, far away from the bottom sealing concrete layer, of the side plate of the box;
the inner clamping plate and the outer clamping plate are respectively connected with the bottom plate of the box, the inner clamping plate and the outer clamping plate are respectively arranged on the inner side and the outer side of the side plate of the box and respectively abutted to the side plate of the box, and the inner clamping plate is anchored in the bottom sealing concrete layer.
2. The bottomed casing case according to claim 1, wherein: the opposite end backup pad of one end of middle part backup pad is kept away from to first stiffening rib outwards stretches out, the anti-ram is connected in the one end that middle part backup pad was kept away from to first stiffening rib and is located one side that first stiffening rib is close to the end backup pad.
3. A bottomless case as set forth in claim 2, wherein: the first stiffening ribs extend to the avoidance holes, and the lengths of the first stiffening ribs gradually decrease from two sides of the end supporting plate to the middle.
4. A bottomless case as set forth in claim 2, wherein: the middle support plate is provided with a plurality of second stiffening ribs at intervals along the width direction of the support bottom plate, the support bottom plate further comprises auxiliary rods, the auxiliary rods are arranged on the plurality of second stiffening ribs in a crossing mode and are vertically connected with the plurality of second stiffening ribs, and the auxiliary rods are connected to one side, far away from the middle support plate, of the second stiffening ribs.
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| CN202111642809.0A CN114277823B (en) | 2021-12-29 | 2021-12-29 | Bottom sleeve box |
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| CN202111642809.0A CN114277823B (en) | 2021-12-29 | 2021-12-29 | Bottom sleeve box |
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| CN114277823B true CN114277823B (en) | 2024-03-26 |
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| CN216664196U (en) * | 2021-12-29 | 2022-06-03 | 中交路桥华南工程有限公司 | Double-clamping-plate type bottom-containing jacket box |
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2021
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| JPH0841893A (en) * | 1994-08-03 | 1996-02-13 | Mitsubishi Heavy Ind Ltd | Manufacture of caisson bottom slab section and bottom slab section structure of caisson |
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| CN114277823A (en) | 2022-04-05 |
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