CN215715336U - Underground continuous wall steel reinforcement cage - Google Patents
Underground continuous wall steel reinforcement cage Download PDFInfo
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- CN215715336U CN215715336U CN202120098000.5U CN202120098000U CN215715336U CN 215715336 U CN215715336 U CN 215715336U CN 202120098000 U CN202120098000 U CN 202120098000U CN 215715336 U CN215715336 U CN 215715336U
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Abstract
The utility model discloses an underground continuous wall reinforcement cage which comprises a lower layer of reinforcement and an upper layer of reinforcement, wherein a plurality of vertical truss reinforcements and transverse truss reinforcements are arranged between the lower layer of reinforcement and the upper layer of reinforcement, guide pipe mounting holes are reserved, and positioning cushion blocks and reinforcing shear tie bars are respectively arranged on the outer side surfaces of the upper layer of reinforcement and the lower layer of reinforcement. The transverse truss ribs and the vertical truss ribs designed in the utility model can effectively improve the mechanical properties of the reinforcement cage, such as bending resistance, torsion resistance and the like, and ensure the stability of the reinforcement cage in the hoisting process.
Description
Technical Field
The utility model belongs to the technical field of underground continuous walls, and particularly relates to an underground continuous wall reinforcement cage.
Background
With the acceleration of urban rail transit and urban construction pace, the infrastructure construction of urban subways, high-speed rails, underground stations, underground squares and the like is more and more, and the underground continuous wall serving as an enclosure structure is widely developed and applied in the supporting process of foundation pit engineering. The underground continuous wall is made up through such technological steps as digging or punching a slot with a certain width and depth along the periphery of underground building or structure, protecting wall with slurry, arranging reinforcing cage with a certain rigidity in the slot, pouring underwater concrete with guide tube, sectional construction, and connecting by special method.
The steel reinforcement cage structure that uses at present mostly is a style of calligraphy steel reinforcement cage structure, mainly adopts horizontal muscle and main muscle welding to form, but the rigidity of the steel reinforcement cage of this kind of structure is limited, and warp and scatter at the hoist and mount in-process easily, and the fruit is very serious afterwards, needs a novel steel reinforcement cage urgently.
Disclosure of Invention
Aiming at the technical problems, the utility model provides an underground continuous wall reinforcement cage.
The technical scheme adopted by the utility model is as follows:
a reinforcement cage for an underground continuous wall,
including lower floor's muscle and upper rib, set up many pin longitudinal truss muscle and transverse truss muscle between lower floor's muscle and the upper rib to reserve the pipe mounting hole, the lateral surface of upper rib and lower floor's muscle still is provided with the positioning pad respectively and strengthens the scissors lacing wire.
Preferably, the reinforcement cage is of a one-shaped structure, and in the one-shaped structure, the upper-layer ribs and the lower-layer ribs have the same structure and respectively comprise horizontal ribs and main ribs welded with the horizontal ribs; the steel reinforcement cage comprises a plurality of transverse truss ribs, wherein the transverse truss ribs are arranged at intervals of 4m in the depth direction of the steel reinforcement cage, each transverse truss rib comprises two connecting ribs arranged on the inner sides of an upper rib and a lower rib, and two rows of first truss units which are symmetrically distributed are arranged between the upper connecting rib and the lower connecting rib; a plurality of longitudinal truss ribs are arranged at intervals of 1.8m along the width direction of the steel reinforcement cage, and each longitudinal truss rib comprises first truss units which are arranged on main ribs on the upper-layer rib and the lower-layer rib and connected in sequence; the positioning cushion blocks are arranged on the outer sides of the main ribs on the upper-layer ribs and the lower-layer ribs and are provided with three positioning cushion blocks along the depth direction of the steel reinforcement cage.
Preferably, the end parts of the horizontal ribs on the upper-layer ribs and the lower-layer ribs are welded with I-shaped steel, and anti-streaming iron sheets are arranged on the upper side and the lower side of the I-shaped steel.
Preferably, the reinforcement cage is of an L-shaped structure, in the L-shaped structure, the upper-layer ribs and the lower-layer ribs have the same structure and respectively comprise horizontal ribs and main ribs welded with the horizontal ribs, one ends of the horizontal ribs on the lower-layer ribs and the upper-layer ribs are provided with longitudinally extending inner-layer ribs and outer-layer ribs, and a plurality of longitudinal truss ribs and transverse truss ribs are also arranged between the outer-layer ribs and the inner-layer ribs; the inner-layer ribs and the outer-layer ribs respectively comprise a plurality of longitudinal ribs and main ribs welded with the longitudinal ribs, and the lower end parts of the longitudinal ribs on the inner-layer ribs and the outer-layer ribs are welded with the horizontal ribs on the lower-layer ribs and the upper-layer ribs by adopting bent angles of 10 d; measure ribs are arranged between the horizontal ribs on the lower layer ribs and the longitudinal ribs on the outer layer ribs, and two end parts of the measure ribs are welded with the horizontal ribs and the longitudinal ribs at single-side bent angles of 10 d.
Preferably, a plurality of transverse truss ribs are arranged at intervals of 4m in the depth direction of the steel reinforcement cage, each transverse truss rib comprises two connecting ribs arranged on the inner sides of the upper-layer rib and the lower-layer rib and on the inner sides of the inner-layer rib and the outer-layer rib, and two rows of first truss units which are symmetrically distributed with each other are arranged between the upper connecting rib and the lower connecting rib; a plurality of longitudinal truss ribs are arranged at intervals of 1.8m along the width direction of the steel reinforcement cage, and each longitudinal truss rib comprises first truss units which are sequentially connected with the main ribs on the upper-layer rib and the lower-layer rib, the inner-layer rib and the outer-layer rib; the positioning cushion blocks are arranged on the main reinforcements on the upper layer reinforcement and the lower layer reinforcement, the main reinforcements on the inner layer reinforcement and the outer layer reinforcement, and three positioning cushion blocks are arranged along the depth direction of the reinforcement cage; and reinforcing shear lacing wires are also arranged on the outer sides of the inner layer ribs and the outer layer ribs.
Preferably, the other ends of the horizontal ribs on the upper layer of ribs and the lower layer of ribs are provided with I-shaped steel, and the upper side and the lower side of the I-shaped steel are provided with anti-streaming iron sheets.
Preferably, I-shaped steel is arranged at the end parts of the longitudinal ribs on the inner layer rib and the outer layer rib, and anti-streaming iron sheets are arranged on the upper side and the lower side of the I-shaped steel.
Preferably, the end parts of the longitudinal ribs on the inner layer rib and the outer layer rib are provided with sealing ribs.
Compared with the prior art, the utility model has the beneficial effects that: (1) the transverse truss ribs and the vertical truss ribs designed in the utility model can effectively improve the mechanical properties of the reinforcement cage, such as bending resistance, torsion resistance and the like, and ensure the stability of the reinforcement cage in the hoisting process. (2) According to the utility model, three positioning cushion blocks are respectively arranged on the outer side surfaces of the upper-layer rib and the lower-layer rib and are arranged according to the vertical interval of 4m, so that the thickness of the protective layer of the reinforcement cage is ensured. (3) The reinforcement cage comprises a linear structure and an L-shaped structure, wherein in the L-shaped structure, the end part of a longitudinal rib and a horizontal rib are welded by adopting a bent angle 10d, and a measure rib is additionally arranged between the longitudinal rib and the horizontal rib, so that the connection stability between the horizontal rib and the longitudinal rib is ensured. (4) According to the utility model, the two L-shaped structures can be spliced into the Z-shaped steel reinforcement cage, so that the requirements of different groove sections are met, the whole steel reinforcement cage structure is uniformly stressed and has a good supporting effect and good bending resistance and torsion resistance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a top view of a framework of an underground continuous wall reinforcement cage of the present invention;
fig. 2 is a schematic view of the longitudinal truss ribs of examples 1-3;
FIG. 3 is a partial view of FIG. 2;
FIG. 4 is a front view of the leading reinforcement cage of each slot segment of example 1;
FIG. 5 is a front view of the remainder of the reinforcement cage of example 1;
FIG. 6 is a schematic view of the transverse truss ribs of examples 1-3;
fig. 7 is a schematic view of the engagement between reinforcement cages of adjacent channel sections in examples 1-3;
FIG. 8 is a front view of the reinforcement cage of embodiment 2;
fig. 9 is an installation schematic view of the embedded steel bar connector in embodiment 2;
FIG. 10 is a sectional view of the reinforcement cage according to example 3;
fig. 11 is an installation diagram of the embedded steel bar connector in embodiment 3.
Wherein, 1-upper layer of ribs; 2-lower layer of ribs; 3-main reinforcement; 4-horizontal ribs; 5-longitudinal truss ribs; 6-transverse truss ribs; 7-a conduit mounting hole; 8, positioning a cushion block; 9-strengthening the lacing wire of the scissors; 10-a first truss unit; 11-a second truss unit; 12-anti-turbulent iron sheet; 13-inner layer ribs; 14-outer layer ribs; 15-longitudinal ribs; 16-i-section steel; 17-orifice horizontal stiffener; 18-hoisting reinforcing steel bars; 19-measure ribs; 20-connecting ribs; 21-sealing rib.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The utility model particularly provides a one-shaped steel reinforcement cage, which comprises a lower-layer rib 2 and an upper-layer rib 1, wherein the upper-layer rib 1 and the lower-layer rib 2 have the same structure and respectively comprise a horizontal rib 4 and a main rib 3 welded with the horizontal rib 4, a plurality of vertical truss ribs 5 and transverse truss ribs 6 are arranged between the lower-layer rib 2 and the upper-layer rib 1, and a guide pipe mounting hole 7 is reserved.
As shown in fig. 2, 3 and 6, a plurality of transverse truss ribs 6 are arranged at intervals of 4m along the depth direction of the steel reinforcement cage, each transverse truss rib 6 comprises two connecting ribs 20 arranged on the inner sides of an upper rib 1 and a lower rib 2, and the connecting ribs 20 are arranged in parallel with the horizontal ribs 4; two rows of first truss units 10 which are symmetrically distributed are arranged between the upper connecting rib 20 and the lower connecting rib 20; and a plurality of longitudinal truss ribs 5 are arranged at intervals of 1.8m in the width direction of the steel reinforcement cage, and each longitudinal truss rib 5 comprises first truss units 10 which are arranged on the main ribs 3 on the upper-layer rib 1 and the lower-layer rib 2 and are connected in sequence.
As shown in fig. 1, the head end and the tail end of the reinforcement cage are respectively provided with an orifice horizontal reinforcing rib 17, and three orifice horizontal reinforcing ribs are tightly arranged to prevent the port of the reinforcement cage from shrinking and deforming in the hoisting process; secondly, the main reinforcement 3 that the head goes out has hoisting reinforcing bar 18 along its axial welding, as hoisting point, conveniently lifts by crane.
In order to ensure the thickness of a protective layer of the steel bar, three positioning cushion blocks 8 are respectively arranged on two sides of the upper layer rib 1 and the lower layer rib 2 of the steel bar cage, and the cushion blocks are arranged at a vertical interval of 4 m. And two sides of the upper layer rib 1 and the lower layer rib 2 of the reinforcement cage are respectively provided with three reinforcing shear tie bars 9.
The welding of the reinforcing steel bars and embedded parts of the reinforcement cage adopts electric welding, except that nodes at the joints of main structures are all welded, other joints can be welded at intervals of 50 percent, the main vertical reinforcing steel bars at the excavation side above the excavation bottom surface of the foundation pit must be welded (double-sided welding is carried out for 5d, d is a smaller diameter) or butt-welded, and the other joints adopt 45d lap joint. Two concrete pouring guide pipe channel openings are reserved in each channel with the groove section larger than 4m, the distance between the two guide pipes is 2-3 m, the distance between the guide pipes is 1-1.5 m from two sides, the specific positions are shown in figures 4 and 5, and each guide pipe opening is provided with 5 phi 16 guide ribs with the whole length, so that the guide pipes can be conveniently arranged up and down during concrete pouring.
As shown in fig. 4 and 5, i-beams 16 are welded at both ends of the upper and lower horizontal bars 4 of the first section of the reinforcement cage, and 0.5 × 900mm anti-flow iron sheets 12 are arranged at the upper and lower sides of the i-beams 16, and are spot-welded with the flange of the short edge of the joint. I-shaped steel 16 is welded at one end of the upper and lower horizontal ribs 4 of the rest reinforcement cage, 0.5 x 900mm anti-streaming iron sheet 12 is arranged at the upper and lower sides of the I-shaped steel, and the other end is in a closed shape and is matched and connected with the I-shaped steel 16 of the previous section of reinforcement cage, as shown in fig. 6.
Manufacturing a steel reinforcement cage:
two reinforcing cage processing racks and reinforcing steel bar processing equipment are specially erected on site, and are compactly arranged in and around the reinforcing cage processing racks. The processing platform is to ensure that the platform surface is horizontal, four corners are right-angled, marks are made at four corner points, so that the steel bars can be accurately positioned and are horizontally and vertically arranged according to the standard of the steel bar cage when the steel bar cage is processed, and the distance between the steel bars meets the requirements of the specification and the design. The steel reinforcement cage truss is manufactured before construction of the steel reinforcement cage, four truss ribs are generally adopted, three truss ribs are adopted for the steel reinforcement cage with the width smaller than 4m, the distance is not larger than 1500mm, and the truss is processed on a special die so as to ensure that each truss unit is straight and the height of the truss is consistent and ensure the thickness of the steel reinforcement cage. The truss is made of main reinforcements of the reinforcement cage and welded in butt welding mode to form a through long reinforcement with the same diameter. The steel reinforcement cage lays lower floor's horizontal distribution muscle 4 earlier on the platform and puts the main muscle 3 of lower floor again, and after lower floor's muscle 2 was laid, lays horizontal truss muscle 6 and vertical truss muscle 5 and upper muscle 1 according to the design position again. In order to ensure the thickness of a protective layer of the steel bar, three positioning cushion blocks 8 are respectively arranged on the inner side and the outer side of the steel bar cage, and the cushion blocks are arranged at a vertical interval of 4 m. Then the I-steel 16 and the reinforcing shear tie bar 9 are sequentially installed.
When the steel bar connectors are installed, each layer of connector on the inner side surface of a foundation pit is fixed on one steel bar of 18 or phi 20, the central elevation of the connector is the same as the steel bar elevation of a designed structural slab when the connector is installed corresponding to the top of a steel bar cage, and the number, specification and central elevation of the connectors on each layer of slab are ensured to be consistent with the design; after the processing of the steel reinforcement cage is finished, the cover of the steel reinforcement connector is screwed, and when the steel reinforcement cage is placed into a groove, whether the cover is completely covered or not is checked again, and if the cover is not covered or not, the cover is immediately supplemented and screwed. Each connector can be used during structure construction.
The elevation of the top of the steel reinforcement cage is tracked and measured when the steel reinforcement cage is placed, and after the steel reinforcement cage is placed in place, the elevation of the pre-buried connector is ensured to be correct by adjusting the cushion blocks in time according to actual conditions.
Example 2
The embodiment provides an L-shaped steel reinforcement cage, as shown in fig. 1, 2, 3, 4, 6, 7, and 8, the steel reinforcement cage includes a lower layer rib 2 and an upper layer rib 1, the upper layer rib 1 and the lower layer rib 2 have the same structure, and both include a horizontal rib 4 and a main rib 3 welded to the horizontal rib 4, one end of the horizontal rib 4 on the lower layer rib 2 and the upper layer rib 1 is provided with an inner layer rib 13 and an outer layer rib 14, the inner layer rib 13 and the outer layer rib 14 both include a plurality of longitudinal ribs 15 and a main rib 3 welded to the longitudinal ribs 15, and a plurality of longitudinal truss ribs 5 and transverse truss ribs 6 are also arranged between the outer layer rib 14 and the inner layer rib 13; the lower end parts of the longitudinal ribs 15 on the inner layer ribs 13 and the outer layer ribs 14 are welded with the horizontal ribs 4 on the lower layer ribs 2 and the upper layer ribs 1 by adopting bent angles 10 d; and a measure rib 19 is arranged between the horizontal rib 4 on the lower layer rib 2 and the longitudinal rib 15 on the outer layer rib 14, and two end parts of the measure rib 19 are welded with the horizontal rib 4 and the longitudinal rib 15 through a single-side bent angle 10 d.
In this embodiment, a plurality of vertical truss ribs 5 and transverse truss ribs 6 are arranged between the lower-layer rib 2 and the upper-layer rib 1, a plurality of vertical truss ribs 5 and transverse truss ribs 6 are also arranged between the outer-layer rib 14 and the inner-layer rib 13, a plurality of transverse truss ribs 6 are arranged at intervals of 4m along the depth direction of the steel reinforcement cage, each transverse truss rib 6 comprises two connecting ribs 20 arranged at the inner sides of the upper-layer rib 1 and the lower-layer rib 2 and the inner sides of the inner-layer rib 13 and the outer-layer rib 14, and the connecting ribs 20 are arranged in parallel with the horizontal ribs 4; two rows of first truss units 10 which are symmetrically distributed are arranged between the upper connecting rib 20 and the lower connecting rib 20; a plurality of longitudinal truss ribs 5 are arranged at intervals of 1.8m in the width direction of the steel reinforcement cage, and each longitudinal truss rib 5 comprises first truss units 11 which are sequentially connected with the upper layer rib 1 and the lower layer rib 2 on the main rib 3, the inner layer rib 13 and the main rib 3 on the outer layer rib 14.
The outer sides of the main reinforcements 3 on the upper-layer reinforcements 1 and the lower-layer reinforcements 2, the outer sides of the main reinforcements 3 on the inner-layer reinforcements 13 and the outer-layer reinforcements 14 are provided with three positioning cushion blocks 8 along the depth direction of the steel reinforcement cage; the outer sides of the upper layer rib 1, the lower layer rib 2, the inner layer rib 13 and the outer layer rib 14 are all provided with three reinforcing shear tie bars 9.
I-shaped steel 16 is arranged at the other end of the horizontal rib 4 on the upper layer rib 1 and the lower layer rib 2, and anti-streaming iron sheets 12 are arranged on the upper side and the lower side of the I-shaped steel 16. I-shaped steel 16 is arranged at the end parts of the longitudinal ribs 15 on the inner layer ribs 13 and the outer layer ribs 14, and anti-streaming iron sheets 12 are arranged on the upper side and the lower side of the I-shaped steel 16.
The manufacturing process refers to the manufacturing process of the I-shaped reinforcement cage in the first embodiment.
Fig. 9 is a plan view of the installation of the steel bar connectors in the L-shaped steel bar cage (the dotted line part in the figure shows the distribution of the steel bar connectors).
Example 3
The embodiment specifically provides a "Z" -shaped reinforcement cage, as shown in fig. 10, which is composed of two "L" -shaped reinforcement cages, wherein the sealing ribs arranged at the end portions of the longitudinal ribs on the inner layer rib 13 and the outer layer rib 14 on one "L" -shaped reinforcement cage are of a concave conical surface structure; the sealing ribs arranged at the end parts of the longitudinal ribs on the inner layer rib 13 and the outer layer rib 14 on the other L-shaped reinforcement cage are of an outer convex conical surface structure; after being divided into two L-shaped steel bar cages, the two L-shaped steel bar cages are connected through a sealing rib to form a Z-shaped steel bar cage.
Fig. 11 is a plan view of the installation of the steel bar connectors in the L-shaped steel bar cage (the dotted line part in the figure shows the distribution of the steel bar connectors).
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalents of the above embodiments according to the technical spirit of the present invention are within the protection scope of the technical solution of the present invention.
Claims (5)
1. A reinforcement cage for an underground continuous wall is characterized by comprising a lower layer of ribs and an upper layer of ribs, wherein a plurality of longitudinal truss ribs and transverse truss ribs are arranged between the lower layer of ribs and the upper layer of ribs, guide pipe mounting holes are reserved, and positioning cushion blocks and reinforcing shear tie bars are respectively arranged on the outer side surfaces of the upper layer of ribs and the lower layer of ribs;
the steel reinforcement cage is of an L-shaped structure, the upper-layer ribs and the lower-layer ribs are of the same structure and respectively comprise horizontal ribs and main ribs welded with the horizontal ribs, one ends of the horizontal ribs on the lower-layer ribs and the upper-layer ribs are provided with longitudinally extending inner-layer ribs and outer-layer ribs, and a plurality of longitudinal truss ribs and transverse truss ribs are also arranged between the outer-layer ribs and the inner-layer ribs; the inner-layer ribs and the outer-layer ribs respectively comprise a plurality of longitudinal ribs and main ribs welded with the longitudinal ribs, and the lower end parts of the longitudinal ribs on the inner-layer ribs and the outer-layer ribs are welded with the horizontal ribs on the lower-layer ribs and the upper-layer ribs by adopting bent angles of 10 d; measure ribs are arranged between the horizontal ribs on the lower layer ribs and the longitudinal ribs on the outer layer ribs, and two end parts of the measure ribs are welded with the horizontal ribs and the longitudinal ribs at single-side bent angles of 10 d.
2. The underground continuous wall steel reinforcement cage according to claim 1, wherein a plurality of transverse truss ribs are arranged at intervals of 4m along the depth direction of the steel reinforcement cage, each transverse truss rib comprises two connecting ribs arranged on the inner sides of an upper rib and a lower rib and on the inner sides of the inner rib and the outer rib, and two rows of first truss units are symmetrically distributed between the upper connecting rib and the lower connecting rib; a plurality of longitudinal truss ribs are arranged at intervals of 1.8m along the width direction of the steel reinforcement cage, and each longitudinal truss rib comprises first truss units which are sequentially connected with the main ribs on the upper-layer rib and the lower-layer rib, the inner-layer rib and the outer-layer rib; the positioning cushion blocks are arranged on the main reinforcements on the upper layer reinforcement and the lower layer reinforcement, the main reinforcements on the inner layer reinforcement and the outer layer reinforcement, and three positioning cushion blocks are arranged along the depth direction of the reinforcement cage; and reinforcing shear lacing wires are also arranged on the outer sides of the inner layer ribs and the outer layer ribs.
3. The reinforcement cage for the underground continuous wall as claimed in claim 1, wherein the other ends of the horizontal ribs on the upper and lower ribs are provided with i-beams, and anti-winding iron sheets are arranged on the upper and lower sides of the i-beams.
4. The reinforcement cage for the underground continuous wall as claimed in claim 3, wherein the end portions of the longitudinal ribs on the inner layer ribs and the outer layer ribs are provided with I-shaped steel, and anti-streaming iron sheets are arranged on the upper and lower sides of the I-shaped steel.
5. The reinforcement cage for underground continuous walls according to claim 3, wherein the ends of the longitudinal ribs on the inner layer ribs and the outer layer ribs are provided with sealing ribs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120098000.5U CN215715336U (en) | 2021-01-14 | 2021-01-14 | Underground continuous wall steel reinforcement cage |
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| CN202120098000.5U CN215715336U (en) | 2021-01-14 | 2021-01-14 | Underground continuous wall steel reinforcement cage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173676A1 (en) * | 2022-03-17 | 2023-09-21 | 中交三航局第三工程有限公司 | Space truss support platform, system and method for super-deep slurry wall |
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2021
- 2021-01-14 CN CN202120098000.5U patent/CN215715336U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173676A1 (en) * | 2022-03-17 | 2023-09-21 | 中交三航局第三工程有限公司 | Space truss support platform, system and method for super-deep slurry wall |
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