CN111305442B - Anti-floating device for high-strength thin-wall hollow pipe of cast-in-situ floor slab and construction method - Google Patents
Anti-floating device for high-strength thin-wall hollow pipe of cast-in-situ floor slab and construction method Download PDFInfo
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- CN111305442B CN111305442B CN202010277213.4A CN202010277213A CN111305442B CN 111305442 B CN111305442 B CN 111305442B CN 202010277213 A CN202010277213 A CN 202010277213A CN 111305442 B CN111305442 B CN 111305442B
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- 238000007667 floating Methods 0.000 title claims abstract description 54
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 238000001125 extrusion Methods 0.000 claims description 35
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/48—Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device and a construction method, wherein the device comprises a template, a steel backing plate, a U-shaped plate and lower positioning steel bars; the template is fixedly connected with a steel backing plate through screws, connecting grooves are symmetrically formed in the steel backing plate, connecting blocks are clamped in the connecting grooves, and the connecting blocks are symmetrically welded at two ends of the U-shaped plate; the U-shaped plate is internally provided with the U-shaped ring clamping groove, and the inner side of the U-shaped ring clamping groove is provided with the first arc-shaped groove; the fixing device provided by the invention is simpler and more convenient for construction and fixation, has good firmness, improves the working efficiency and improves the construction quality.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device and a construction method.
Background
In the existing cast-in-situ high-strength thin-wall hollow pipe floor structure, because the high-strength thin-wall hollow pipe is hollow and has light weight and is easy to roll, the pipe position is deviated, the size of the concrete between the pipe and the pipe cannot be ensured when the floor concrete is poured, the stress characteristic of the floor is changed, and the pipe is easy to float up due to the buoyancy effect and the quality defect of the displacement of the reinforcing steel bars at the upper part of the local floor is easy to cause the floating up of the hollow pipe; most of the iron wires penetrate through the templates and are fixed with the battens, so that floating and displacement of the high-strength thin-wall hollow pipes are prevented, and the hollow pipes are easy to float and displace due to the fact that buoyancy is large and the iron wires are connected in a flexible mode; particularly, after the construction of the concrete floor is finished, the floating data of the hollow pipe cannot actually measure the real quantity, and the influence of the bottom floating value on the structure is unknown, so that the hidden danger of the structure is important; therefore, the invention provides a cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device and a construction method thereof, which are used for solving the problems.
Disclosure of Invention
The invention aims to provide a cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device and a construction method thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: a cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device comprises a template, a steel backing plate, a U-shaped plate and lower positioning steel bars;
The template is fixedly connected with a steel backing plate through screws, connecting grooves are symmetrically formed in the steel backing plate, connecting blocks are clamped in the connecting grooves, and the connecting blocks are symmetrically welded at two ends of the U-shaped plate;
A U-shaped ring clamping groove is formed in the U-shaped plate, a first arc-shaped groove is formed in the inner side of the U-shaped ring clamping groove, a convex chute is symmetrically formed on the U-shaped plate, an inlet groove is formed at one end of the convex chute, and a convex sliding block is arranged on the convex chute in a sliding connection mode;
The convex sliding block is integrally formed on the first sliding block and the second sliding block;
a first square groove is formed in the first sliding block, a second square groove is formed in one end of the first square groove, a first inserting piece is inserted into the first square groove, a second inserting piece is inserted into the second square groove, the second inserting piece is integrally formed at one end of the first inserting piece, the first inserting piece is integrally and symmetrically connected with the same end of the second inserting piece, a first reset spring is integrally formed at the other end of the first reset spring and is connected with the first square groove, and a pull buckle is welded at the other end of the first inserting piece;
A third square groove is formed in the second sliding block, a fourth square groove is formed in one end of the third square groove, a third inserting piece is inserted into the third square groove, a fourth inserting piece is inserted into the fourth square groove, the fourth inserting piece is integrally formed at one end of the third inserting piece, the third inserting piece is integrally and symmetrically connected with the same end of the fourth inserting piece, a second reset spring is integrally formed at the other end of the second reset spring and is connected with the third square groove, a pull buckle is welded at the other end of the third inserting piece, a fifth square groove is formed at the other end of the fourth inserting piece, a second arc-shaped groove is formed in the side wall of the fourth inserting piece, and the second inserting piece is inserted into the fifth square groove;
A first round groove is formed in one side of the first sliding block, a threaded column is inserted into the first round groove, the threaded column penetrates through the fixed block, and the fixed block is integrally formed on the U-shaped plate;
fixing devices are symmetrically arranged on the steel backing plate.
Preferably, the fixing device comprises a first inserting block, a second inserting block, a third reset spring, a first fixing groove, a first extrusion spring, a first extrusion block, a second fixing groove, a second extrusion spring, a second extrusion block, a fastening screw, a convex block, a third inserting block, a fourth reset spring and a second round groove, wherein the first inserting groove and one end of the first inserting groove are symmetrically arranged in the steel backing plate, the second inserting groove is arranged at one end of the first inserting groove in an inserting way, the second inserting block is arranged at one end of the second inserting groove in an inserting way, the first inserting block is integrally connected with the second inserting block at the same end of the second inserting block in an integrally formed way, the third reset spring and the other end of the third extrusion spring are integrally connected in the first inserting groove, the second inserting block is connected with the first fixing groove in an inserting way, the first inserting groove is integrally formed in an integrally symmetrical way, the first extruding spring and the other end of the first inserting groove are symmetrically connected with the first extruding spring, the first extruding block is arranged at the other end of the first extruding groove in an integrally formed way, the second inserting groove is fixedly connected with the second inserting block is arranged at one side of the second inserting groove in the second inserting groove, the second inserting groove is integrally formed in the second inserting groove is fixedly connected with the second inserting groove, the second inserting block is fixedly connected with the second inserting groove is arranged at one side of the first inserting groove, the first inserting groove is fixedly connected with the first inserting groove is fixedly arranged at one side of the second inserting groove, and the second inserting groove is fixedly connected with the first inserting groove is fixedly arranged at one side through the first inserting groove through side, and the first inserting groove is fixedly arranged at one side through one side, and one side is fixedly connected with one side, and fixedly connected with one side pressing side, and arranging side pressing bolt is fixedly and, the steel backing plate is provided with the lug at notch avris integrated into one piece of first slot, be provided with third slot in the lug, the one end of third slot is provided with the fourth slot to peg graft in the third slot and be provided with third inserted bar, peg graft in the fourth slot and be provided with the fourth inserted bar, fourth inserted bar integrated into one piece sets up the one end at the third inserted bar, the third inserted bar be provided with fourth reset spring with fourth inserted bar same end integrated into one piece connection, fourth reset spring other end integrated into one piece connection sets up in the third slot, one side of fourth inserted bar is provided with the second circular slot.
Preferably, the number of the connection blocks is the same as the number of the connection grooves, and the thickness of the connection blocks is equal to the depth of the connection grooves.
Preferably, the first fixing groove corresponds to the second inserting block in setting position, sets are the same, the cross section of the notch of the first fixing groove is the same as that of the second inserting block, namely the lengths of the cross section of the notch of the first fixing groove and the cross section of the second inserting block are equal, the widths of the notch of the first fixing groove and the cross section of the second inserting block are equal, and the length of the second inserting block is larger than that of the second inserting groove.
Preferably, the fourth insert block corresponds to the second fixing groove in the setting position, the number of the setting groups is the same, and the area of the cross section of the fourth insert block is equal to the area of the cross section of the notch of the second fixing groove, that is, the length and the width of the cross section are equal, and the length of the fourth insert block is greater than the length of the fourth insert groove.
Preferably, the diameter of the second circular groove is equal to the major diameter of the fastening screw thread.
A construction method of a cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device comprises the following steps:
s1, fixing an anti-floating base steel backing plate, marking the position of the pre-embedded steel backing plate, penetrating out through steel backing plate holes by using steel nails with the diameter of 4mm, and fixing the steel backing plate on a template to prevent the steel backing plate from deviating;
s2: after the floor bottom ribs are bound, anti-floating positioning ribs are placed according to the positions of the hollow pipes, and the positioning ribs are placed on the floor bottom ribs and supported by triangular stirrups;
S3: one end of the U-shaped plate presses the lower row of positioning steel bars, and the other end of the U-shaped plate is fixed with the anti-floating base through a fixing device 22;
s4: then placing a high-strength thin-wall hollow pipe, then placing an upper anti-floating rib, and fixing the upper anti-floating rib and a lower positioning steel bar through interaction of a first sliding block, a second sliding block and a threaded column;
s5: welding a sleeve on the upper anti-floating rib for fixation, plugging the end part of the sleeve, and pouring floor slab concrete;
S6: the 50cm line of the actual measurement structure of the level gauge is erected and compared with the anti-floating detection device, so that the floating position of the thin-wall hollow pipe can be corrected in time, and the specification and design requirements are met;
S7: after the concrete floor is poured, the 50cm line of the actual measurement structure of the erection level gauge is compared with the anti-floating detection device, and floating data of the thin-wall hollow pipe are collected in time.
Compared with the prior art, the invention has the beneficial effects that:
1. By adopting the anti-floating device and the construction method, the problems of floating and shifting of the high-strength thin-wall pipe and acquisition of floating data of the high-strength thin-wall pipe are solved, the construction quality of the floor slab is ensured, and the working economic benefit is ensured;
2. The fixing device provided by the invention is simpler and more convenient for construction and fixation, has good firmness, improves the working efficiency and improves the construction quality.
Drawings
FIG. 1 is a schematic diagram of the left side of the structure of the present invention;
FIG. 2 is a right side schematic view of the structure of the present invention;
FIG. 3 is an exploded left side schematic view of the connection structure of the present invention;
FIG. 4 is an exploded right side schematic view of the connection structure of the present invention;
FIG. 5 is an enlarged schematic view of a portion of the connection structure of FIG. 4 in accordance with the present invention;
FIG. 6 is a partial cross-sectional view of the internal connection structure of the fastening device of the present invention;
FIG. 7 is a top view, partially in section, of the first slider and second slider internal connection structure of the present invention;
fig. 8 is a partially cut-away bottom view of the first slider, second slider internal connection structure of the present invention.
In the figure: form 1, steel tie plate 2, U-shaped plate 3, lower alignment bar 4, connecting slot 5, connecting block 6, U-shaped ring clamping slot 7, first arc-shaped groove 8, male runner 9, male runner 10, first runner 11, second runner 12, first tab 13, second tab 14, first return spring 15, third tab 16, fourth tab 17, second return spring 18, second arc-shaped groove 19, first circular groove 20, threaded post 21, securing device 22, first insert 2201, second insert 2202, third return spring 2203, first securing slot 2204, first compression spring 2205, first compression block 2206, second securing slot 2207, second compression spring 2208, second compression block 2209, fastening screw 2210, bump 2211, third insert 2212, fourth insert 2213, fourth return spring 2214, second circular groove 2215.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. Embodiments of the present invention are intended to be within the scope of the present invention as defined by the appended claims.
Referring to fig. 1 to 8, the present invention provides a technical solution: a cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device comprises a template 1, a steel backing plate 2, a U-shaped plate 3 and a lower positioning steel bar 4;
The template 1 is fixedly connected with a steel backing plate 2 through screws, the steel backing plate 2 is symmetrically provided with connecting grooves 5, the connecting grooves 5 are clamped with connecting blocks 6, and the connecting blocks 6 are symmetrically welded at two ends of the U-shaped plate 3;
The U-shaped plate 3 is provided with a U-shaped ring clamping groove 7, a first arc-shaped groove 8,U is formed in the inner side of the U-shaped ring clamping groove 7, a convex chute 9 is symmetrically formed on the U-shaped plate 3, one end of the convex chute 9 is provided with an inlet groove, and the convex chute 9 is provided with a convex sliding block 10 in a sliding connection manner;
The convex sliding block 10 is integrally formed on the first sliding block 11 and the second sliding block 12;
A first square groove is formed in the first sliding block 11, a second square groove is formed in one end of the first square groove, a first inserting sheet 13 is inserted into the first square groove, a second inserting sheet 14 is inserted into the second square groove, the second inserting sheet 14 is integrally formed at one end of the first inserting sheet 13, the first inserting sheet 13 is integrally and symmetrically connected with the same end of the second inserting sheet 14 and provided with a first reset spring 15, the other end of the first reset spring 15 is integrally and fixedly connected with the first square groove, and a pull buckle is welded at the other end of the first inserting sheet 13;
A third square groove is formed in the second sliding block 12, a fourth square groove is formed in one end of the third square groove, a third inserting sheet 16 is inserted in the third square groove, a fourth inserting sheet 17 is inserted in the fourth square groove, the fourth inserting sheet 17 is integrally formed at one end of the third inserting sheet 16, the third inserting sheet 16 is integrally and symmetrically connected with the same end of the fourth inserting sheet 17 and provided with a second reset spring 18, the other end of the second reset spring 18 is integrally formed and connected with the third square groove, a pull buckle is welded at the other end of the third inserting sheet 16, a fifth square groove is formed at the other end of the fourth inserting sheet 17, a second arc-shaped groove 19 is formed in the side wall of the fourth inserting sheet, and the fifth square groove is inserted with a second inserting sheet 14;
A first round groove 20 is formed in one side of the first sliding block 11, a threaded column 21 is inserted into the first round groove 20, the threaded column 21 penetrates through a fixed block, and the fixed block is integrally formed on the U-shaped plate 3;
The steel backing plate 2 is symmetrically provided with fixing devices 22.
Further, the fixing device 22 comprises a first insert 2201, a second insert 2202, a third return spring 2203, a first fixing groove 2204, a first compression spring 2205, a first compression block 2206, a second fixing groove 2207, a second compression spring 2208, a second compression block 2209, a fastening screw 2210, a bump 2211, a third insert 2212, a fourth insert 2213, a fourth return spring 2214 and a second round groove 2215, wherein a first slot is symmetrically arranged in the steel backing plate 2, one end of the first slot is provided with a second slot, a first insert 2201 is inserted in the first slot, a second insert 2202 is inserted in the second slot, the second insert 2202 is integrally formed at one end of the first insert 2201, the first insert 2201 is integrally formed and connected with the third return spring 2203 at the same end as the second insert, the other end of the third return spring 2203 is integrally formed and connected with the first insert 2202, the second insert 2202 is connected with the first fixing groove 2204 in an inserted manner, the first placing groove 2204 is provided with a first placing groove, the first placing groove is internally and symmetrically connected with a first extrusion spring 2205 in an integrated manner, the other end of the first extrusion spring 2205 is integrally connected with a first extrusion block 2206, the first extrusion block 2206 is provided with a first slope, the first extrusion block 2206 is slidably connected with the first placing groove, one side of the first insert 2201 is provided with a second fixing groove 2207, the second fixing groove 2207 is internally provided with a second placing groove, the second placing groove is internally and integrally connected with a second extrusion spring 2208, the other end of the second extrusion spring 2208 is integrally connected with a second extrusion block 2209, the second extrusion block 2209 is slidably connected with a second slope, one end of the second extrusion block 2209 is provided with a second slope, and the side of the second fixing groove 2207 is provided with a threaded hole in a penetrating manner, the threaded hole threaded connection is provided with fastening screw 2210, steel backing plate 2 is provided with lug 2211 in the notch avris integrated into one piece of first slot, be provided with the third slot in lug 2211, the one end of third slot is provided with the fourth slot, and peg graft in the third slot and be provided with third inserted bar 2212, peg graft in the fourth slot and be provided with fourth inserted bar 2213, fourth inserted bar 2213 integrated into one piece sets up the one end at third inserted bar 2212, third inserted bar 2212 is provided with fourth reset spring 2214 in the same one end integrated into one piece connection with fourth inserted bar 2213, fourth reset spring 2214 other end integrated into one piece connection sets up in the third slot, one side of fourth inserted bar 2213 is provided with second circular slot 2215.
Further, the number of sets of the connection blocks 6 is the same as that of the connection grooves 5, and the thickness of the connection blocks 6 is equal to the depth of the connection grooves 5.
Further, the first fixing groove 2204 corresponds to the second insert 2202 in the arrangement position and has the same number of arrangement groups, and the cross-sectional shape of the notch of the first fixing groove 2204 is the same as the cross-sectional shape of the second insert 2202, that is, the lengths of the cross-sectional shapes of the two are equal and the widths are equal, and the length of the second insert 2202 is greater than the length of the second insert.
Further, the fourth insert 2213 corresponds to the second fixing groove 2207 in the setting position and has the same setting group number, and the area of the cross section of the fourth insert 2213 is equal to the area of the cross section of the notch of the second fixing groove 2207, that is, the lengths and the widths of the cross section shapes of the two are equal, and the length of the fourth insert 2213 is greater than the length of the fourth slot.
Further, the diameter of the second circular groove 2215 is equal to the larger diameter of the thread of the fastening screw 2210.
A construction method of a cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device comprises the following steps of:
S1, fixing an anti-floating base steel backing plate 2, marking the position of the pre-buried steel backing plate 2, penetrating out through holes of the steel backing plate 2 by steel nails with the diameter of 4mm, and fixing the steel backing plate on a template 1 to prevent the steel backing plate 2 from deviating;
s2: after the floor bottom ribs are bound, anti-floating positioning ribs are placed according to the positions of the hollow pipes, and the positioning ribs are placed on the floor bottom ribs and supported by triangular stirrups;
S3: one end of the U-shaped plate 3 presses the lower row of positioning steel bars 4, and the other end of the U-shaped plate is fixed with the anti-floating base through a fixing device 22;
s4: then a high-strength thin-wall hollow pipe is placed, then an upper anti-floating rib is placed, the lower-position positioning steel bar 4 is fixed through interaction of the first sliding block 11, the second sliding block 12 and the threaded column 21, and the second inserting sheet 14 and the fourth inserting sheet 17 are made to extrude the lower-position positioning steel bar 4 through screwing of the threaded column 21, so that the lower-position positioning steel bar 4 is fixed in the U-shaped annular clamping groove 7 in the U-shaped plate 3;
s5: welding a sleeve on the upper anti-floating rib for fixation, plugging the end part of the sleeve, and pouring floor slab concrete;
S6: the 50cm line of the actual measurement structure of the level gauge is erected and compared with the anti-floating detection device, so that the floating position of the thin-wall hollow pipe can be corrected in time, and the specification and design requirements are met;
S7: after the concrete floor is poured, the 50cm line of the actual measurement structure of the erection level gauge is compared with the anti-floating detection device, and floating data of the thin-wall hollow pipe are collected in time.
For the fixing device 22 provided by the invention, the quick installation and fixation of the U-shaped plate 3 and the steel backing plate 2 can be realized, so that convenience is brought to workers, the construction efficiency is improved, firstly, the connecting block 6 is inserted into the connecting groove 5, then the first insert 2201 is pushed, the second insert 2202 is driven to be inserted into the first fixing groove 2204, when the second insert 2202 enters into the first fixing groove 2204, the second insert 2204 can extrude the first extrusion block 2206, the first extrusion spring 2206 is in an extrusion state, the connection block 6 and the connecting groove 5 are further enabled to be more stable, when the second fixing groove 2207 on the first insert 2201 reaches the position of the fourth insert 2213, the third insert 2212 is pushed to further push the fourth insert 2213 to enter into the second fixing groove 2207, the fourth insert 2213 can extrude the second extrusion block 2209, the second extrusion spring 2208 is in an extrusion state, the second insert 2204 is in a compression state, the connection block 6 and the connection block 2213 and the second insert 2213 can be fastened to the position of the fourth insert 2202, the screw can be fastened to the round plate 2213, the fastening efficiency can be realized, and the screw can be fastened to the round plate 2202, and the screw can be fastened to the position of the fourth insert 2202, and the screw can be fastened to the round plate 2202.
The actual function is as follows:
1. By adopting the anti-floating device and the construction method, the problems of floating and shifting of the high-strength thin-wall pipe and acquisition of floating data of the high-strength thin-wall pipe are solved, the construction quality of the floor slab is ensured, and the working economic benefit is ensured;
2. The fixing device provided by the invention is simpler and more convenient for construction and fixation, has good firmness, improves the working efficiency and improves the construction quality.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A cast-in-situ floor high-strength thin-wall hollow pipe anti-floating device is characterized in that: comprises a template (1), a steel backing plate (2), a U-shaped plate (3) and a lower positioning steel bar (4);
The template (1) is fixedly connected with a steel backing plate (2) through screws, connecting grooves (5) are symmetrically formed in the steel backing plate (2), connecting blocks (6) are arranged in a clamping mode in the connecting grooves (5), and the connecting blocks (6) are symmetrically welded at two ends of the U-shaped plate (3);
A U-shaped ring clamping groove (7) is formed in the U-shaped plate (3), a first arc-shaped groove (8) is formed in the inner side of the U-shaped ring clamping groove (7), a convex sliding groove (9) is symmetrically formed in the U-shaped plate (3), an inlet groove is formed in one end of the convex sliding groove (9), and a convex sliding block (10) is arranged in sliding connection with the convex sliding groove (9);
The convex sliding block (10) is integrally formed and arranged on the first sliding block (11) and the second sliding block (12);
A first square groove is formed in the first sliding block (11), a second square groove is formed in one end of the first square groove, a first inserting sheet (13) is inserted into the first square groove, a second inserting sheet (14) is inserted into the second square groove, the second inserting sheet (14) is integrally formed at one end of the first inserting sheet (13), the first inserting sheet (13) is integrally and symmetrically connected with the same end of the second inserting sheet (14) to form a first reset spring (15), the other end of the first reset spring (15) is integrally and fixedly connected with the first square groove, and a pull buckle is welded at the other end of the first inserting sheet (13);
A third square groove is formed in the second sliding block (12), a fourth square groove is formed in one end of the third square groove, a third inserting sheet (16) is inserted into the third square groove, a fourth inserting sheet (17) is inserted into the fourth square groove, the fourth inserting sheet (17) is integrally formed at one end of the third inserting sheet (16), the third inserting sheet (16) is integrally and symmetrically connected with the same end of the fourth inserting sheet (17) and provided with a second reset spring (18), the other end of the second reset spring (18) is integrally and fixedly connected with the third square groove, a pull buckle is welded at the other end of the third inserting sheet (16), a fifth square groove is formed at the other end of the fourth inserting sheet (17), a second arc-shaped groove (19) is formed in the side wall of the fourth inserting sheet, and the fifth square groove is inserted with the second inserting sheet (14);
a first round groove (20) is formed in one side of the first sliding block (11), a threaded column (21) is inserted into the first round groove (20), the threaded column (21) is arranged in a fixed block in a penetrating mode, and the fixed block is integrally formed on the U-shaped plate (3);
Fixing devices (22) are symmetrically arranged on the steel backing plate (2); the fixing device (22) comprises a first insert block (2201), a second insert block (2202), a third reset spring (2203), a first fixing groove (2204), a first extrusion spring (2205), a first extrusion block (2206), a second fixing groove (2207), a second extrusion spring (2208), a second extrusion block (2209), a fastening screw (2210), a bump (2211), a third insert block (2212), a fourth insert block (2213), a fourth reset spring (2214) and a second circular groove (2215), wherein the steel backing plate (2) is symmetrically provided with a first slot, One end of the first slot is provided with a second slot, a first insert block (2201) is arranged in the first slot in an inserted mode, a second insert block (2202) is arranged in the second slot in an inserted mode, the second insert block (2202) is integrally formed at one end of the first insert block (2201), the first insert block (2201) is integrally formed with the same end of the second insert block (2202) in a connected mode, a third reset spring (2203) and the other end of the third reset spring (2203) are integrally formed in a connected mode, the second insert block (2202) is connected with a first fixing groove (2204) in an inserted mode, and a first placing groove, a second placing groove and a third placing groove are formed in the first fixing groove (2204), The first placing groove is internally and symmetrically provided with a first extrusion spring (2205) and a first extrusion block (2206) in an integrated forming way, the other end of the first extrusion spring (2205) is provided with a first slope, the first extrusion block (2206) is slidably connected with the first extrusion block (2206) and is arranged in the first placing groove, one side of the first inserting block (2201) is provided with a second fixing groove (2207), the second fixing groove (2207) is internally provided with a second placing groove, the second placing groove is internally and integrally connected with a second extrusion spring (2208), the other end of the second extrusion spring (2208) is integrally connected with a second extrusion block (2209), the second extrusion block (2209) is arranged in the second placing groove in a sliding way, one end of the second extrusion block (2209) is provided with a second slope, the side of the second fixing groove (2207) is provided with a threaded hole in a penetrating way, the threaded hole is provided with a fastening screw (2210) in a threaded way, the steel base plate (2) is integrally formed at the side of the notch of the first groove and provided with a bump (2211), one end of the bump (2211) provided with a third groove and one end of the third groove is provided with a fourth groove, the third groove is provided with a third insert block (2212) in an inserting way, the fourth groove is provided with a fourth insert block (2213) in an inserting way, the fourth insert block (2213) is integrally formed at one end of the third insert block (2212), the third insert block (2212) is integrally formed at the same end of the fourth insert block (2213) and connected with a fourth reset spring (2214), the other end of the fourth reset spring (2214) is integrally formed and connected with a third slot, and a second round slot (2215) is formed at one side of the fourth insert block (2213); the number of the groups of the connecting blocks (6) is the same as that of the connecting grooves (5), and the thickness of the connecting blocks (6) is equal to the depth of the connecting grooves (5).
2. The cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device according to claim 1, wherein: the first fixing groove (2204) corresponds to the second inserting block (2202) in arrangement position, the number of arrangement groups is the same, the cross section of the notch of the first fixing groove (2204) is the same as that of the second inserting block (2202), namely the lengths of the cross section of the notch of the first fixing groove and the cross section of the second inserting block are equal, the widths of the notch of the first fixing groove and the cross section of the second inserting block are equal, and the length of the second inserting block (2202) is larger than that of the second inserting groove.
3. The cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device according to claim 1, wherein: the fourth insert block (2213) is corresponding to the second fixing groove (2207) in the setting position, the setting groups are the same, the area of the cross section of the fourth insert block (2213) is equal to the area of the cross section of the notch of the second fixing groove (2207), namely the length of the cross section of the fourth insert block (2213) is equal to the length of the notch of the second fixing groove, the width of the cross section of the fourth insert block is equal to the length of the fourth insert groove, and the length of the fourth insert block (2213) is larger than the length of the fourth insert groove.
4. The cast-in-situ floor slab high-strength thin-wall hollow pipe anti-floating device according to claim 1, wherein: the diameter of the second round groove (2215) is equal to the large diameter of the thread of the fastening screw (2210).
5. A method of constructing a cast-in-situ floor slab high strength thin wall hollow pipe anti-floating device as claimed in any one of claims 1 to 4, comprising the steps of:
S1, fixing an anti-floating base steel backing plate (2), marking the position of the pre-buried steel backing plate (2), penetrating out through holes of the steel backing plate (2) by steel nails with the diameter of 4mm, and fixing the steel backing plate on a template (1) to prevent the steel backing plate (2) from deviating;
s2: after the floor bottom ribs are bound, anti-floating positioning ribs are placed according to the positions of the hollow pipes, and the positioning ribs are placed on the floor bottom ribs and supported by triangular stirrups;
s3: one end of the U-shaped plate (3) presses the lower row of positioning steel bars (4), and the other end of the U-shaped plate is fixed with the anti-floating base through a fixing device (22);
S4: then a high-strength thin-wall hollow pipe is placed, then an upper anti-floating rib is placed, and the upper anti-floating rib and the lower positioning steel bar (4) are fixed through interaction of a first sliding block (11), a second sliding block (12) and a threaded column (21);
s5: welding a sleeve on the upper anti-floating rib for fixation, plugging the end part of the sleeve, and pouring floor slab concrete;
S6: the 50cm line of the actual measurement structure of the level gauge is erected and compared with the anti-floating detection device, so that the floating position of the thin-wall hollow pipe can be corrected in time, and the specification and design requirements are met;
S7: after the concrete floor is poured, the 50cm line of the actual measurement structure of the erection level gauge is compared with the anti-floating detection device, and floating data of the thin-wall hollow pipe are collected in time.
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| CN202010277213.4A CN111305442B (en) | 2020-04-10 | 2020-04-10 | Anti-floating device for high-strength thin-wall hollow pipe of cast-in-situ floor slab and construction method |
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| CN212026790U (en) * | 2020-04-10 | 2020-11-27 | 中建八局第二建设有限公司 | Anti device that floats of cast-in-place floor high-strength thin wall hollow tube |
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| CN100575632C (en) * | 2008-03-25 | 2009-12-30 | 新蒲建设集团有限公司 | The job practices of cast-in-situ hollow building roof |
| CN101487320A (en) * | 2009-02-06 | 2009-07-22 | 北京首钢建设集团有限公司 | Thin-wall hollow pipe anti-floating construction method for cast-in-situ concrete hollow floor slab |
| CN103806656A (en) * | 2012-11-06 | 2014-05-21 | 南通卓强建设工程有限公司 | Construction method of cast-in-place concrete flat slab built-in thin-wall hollow box body |
| CN206815407U (en) * | 2017-06-22 | 2017-12-29 | 青岛海川建设集团有限公司 | A kind of anti-corrosion type mud geology steel sleeve pore-forming anti-float anchor rod |
| US10378231B1 (en) * | 2017-11-22 | 2019-08-13 | United Staging & Rigging, LLC | Ballasted attachment for temporary truss structures |
| CN109930591B (en) * | 2019-02-25 | 2020-11-27 | 安徽省公路桥梁工程有限公司 | Underground continuous wall and construction method thereof |
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