CN214143312U - Tension-compression combined supporting system for capping hollow pier - Google Patents
Tension-compression combined supporting system for capping hollow pier Download PDFInfo
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- CN214143312U CN214143312U CN202022426893.XU CN202022426893U CN214143312U CN 214143312 U CN214143312 U CN 214143312U CN 202022426893 U CN202022426893 U CN 202022426893U CN 214143312 U CN214143312 U CN 214143312U
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Abstract
The utility model discloses a draw and press combination support system for hollow pier capping, including simple support formula carry draw frame girder steel bearing system, draw and press combination formula strong support system, draw and press template system, spacing system, fine setting system, crack control system and leak protection thick liquid system, utilize the utility model discloses a construction method when carrying out hollow pier or hollow tower capping, can avoid the manhole to reserve, greatly reduced the quantity of reserving in the hole, main bearing member draws template system for facing forever and combines, increases the security of structure, reduces the construction seam and sets up shaped steel reinforcing connection in pier top seam; the tension-compression combined type strong support system is an auxiliary stress system, the using amount of profile steel is reduced, the tensile stress possibly generated on the side wall concrete by the bracket is avoided, the aerial operation is reduced through integral prefabrication and hoisting, and the construction safety is ensured to the maximum extent.
Description
Technical Field
The utility model relates to a bridge construction technical field specifically is a draw pressure to combine support system for hollow mound capping.
Background
With the development of bridge technology in China, the application of thin-wall hollow piers in bridge pier columns is more and more extensive. But the inherent problems of repeated parting of the pier top in the thin-wall hollow pier construction, the danger of high-altitude durable operation, the influence of the reserved manhole on the structural performance in the use process and the like can not be solved thoroughly all the time. The existing traditional construction method and design are not good at the problems.
Disclosure of Invention
In order to overcome the technical defect that there are many times parting of mound top, lasting operation in high altitude in the hollow mound construction of thin wall among the prior art, the utility model provides a draw and press combination support system for hollow mound capping has solved above-mentioned technical problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose, a draw pressure to combine support system for hollow mound capping, carry the frame girder steel system of bearing, draw pressure combined type strong support system, carry and draw template system, spacing system, trimming system, crack control system and leak protection thick liquid system including the simple support formula.
The simply-supported lifting frame steel beam bearing system comprises side wall frame supporting I-shaped steel and upper layer double-spliced channel steel, wherein the upper layer double-spliced channel steel is erected above the side wall frame supporting I-shaped steel on the left side and the right side and is firmly welded.
The tension-compression combined type strong support system comprises oblique support I-beams, lower layer I-beams and upper layer I-beams, wherein the lower layer I-beams are of an integral structure at the positions of the non-reserved holes, the reserved holes are of a disconnected structure, the upper layer I-beams are welded at the tops of the disconnected positions, and the lower layer I-beams and the side wall frame support I-beams are welded together through the oblique support I-beams.
Carry and draw template system including lower floor's double-pin channel-section steel, to drawing the screw rod, the flitch, bamboo offset plate and steel backing plate, the upper end pad of lower floor's double-pin channel-section steel is equipped with the flitch, the lower extreme is provided with the steel backing plate, the upper end of flitch is provided with the bamboo offset plate, to drawing the screw rod to pass lower floor's double-pin channel-section steel in proper order, the flitch, bamboo offset plate and upper double-pin channel-section steel, both ends are locked through the nut, the nut is equipped with the steel backing plate with the contact position pad of lower floor's double-pin channel-section steel and upper double-pin channel-section steel, adjust to drawing the screw rod nut position and set up degree of encircleing in advance, it is provided with waterproof ring to drawing the screw rod.
The limiting system comprises a fine adjustment bolt, a limiting steel plate and an I-shaped steel flange plate clamping sleeve, the I-shaped steel flange plate clamping sleeve is installed at the flange of the I-shaped steel through the fine adjustment bolt, the position is set to punch before the I-shaped steel is embedded, and the limiting steel plate is vertically welded with the I-shaped steel flange plate clamping sleeve.
The fine setting system sets up on the diagonal bracing I-steel and to drawing the screw rod, can eliminate through the fine setting bolt and draw the high deviation of pressing the strong support system of convolution, and set up the degree of arching in advance of upper double-pin channel-section steel, including bolt tip steel backing plate and fine setting bolt, the fine setting bolt is installed on the I-steel, and bolt tip steel backing plate is filled up and is established at the fine setting bolt, through adjusting the screw in length of fine setting bolt on the I-steel, can finely tune about the position of bolt tip steel backing plate, can eliminate the deviation on the pre-buried I-steel direction of height in the work progress.
The anti-cracking system comprises a steel bar anti-cracking net and anti-pulling profile steel, wherein the steel bar anti-cracking net is arranged at the top of the tension-compression combined type strong support system, and the anti-pulling profile steel is used for reinforcing the steel bar anti-cracking net.
The slurry leakage prevention system comprises a thin steel sheet, an oblique tensile rib, a concrete clamping groove and a double faced adhesive tape, the concrete clamping groove is formed when the side wall is poured, the oblique tensile rib is embedded to serve as a notch reinforcing rib, and the double faced adhesive tape is adhered to the contact position of the thin steel sheet and the bamboo plywood and the position of the concrete clamping groove.
The side wall framework supporting I-shaped steel has the length not less than 1m and is positioned in a range from the inner side 1/2 to the inner side 1/3.
The pulling and pressing combined supporting system for capping the hollow pier is characterized in that the thin steel sheet on the bamboo plywood is provided with an inverted U-shaped groove which is used as a template sinking buffer groove.
The H-shaped steel flange plate is clamped in 1/2 with the overhanging size larger than the length of the lower H-shaped steel flange plate, and the H-shaped steel flange plate can be outwards overhung when the size of the upper H-shaped steel is larger than that of the lower H-shaped steel.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can reach following beneficial effect:
1. the utility model relates to a draw and press combination support system for hollow mound capping, thin wall hollow mound capping one-step whole is pour, practice thrift the time limit for a project, reduce the construction joint, thoroughly solve the structure because of the harmful effects of construction joint, the main atress is for carrying and drawing template system, draw and press the convolution structure and only be supplementary atress, the lateral wall structure overall process is drawn the power less, prevent to the utmost that the lateral wall of having pour from producing the crack, and strengthen connecting between the pier stud construction joint through a part of bearing structure, improve structural performance, main atress supports and remains the capping structure bottom after pouring, form and face the mode of combining forever, strengthen bottom rigidity greatly, reducible structure reinforcing bar quantity;
2. the utility model discloses when concrete construction, with the prefabricated equipment in thin wall hollow mound top pull-up template ground, integral hoisting to mound top installation reduces the high altitude construction degree of difficulty, has reduced the whole time of construction, with risk source reasonable control, the safety of being under construction is guaranteed to the at utmost.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
FIG. 1 is a schematic cross-sectional view of a non-reserved hole of a tension-compression combined supporting system for capping a hollow pier according to the present invention;
FIG. 2 is a schematic cross-sectional view of a pre-formed hole of a tension-compression combined supporting system for capping a hollow pier according to the present invention;
FIG. 3 is a schematic structural view of the simply supported lifting frame steel beam carrying system of the present invention;
FIG. 4 is a schematic structural view of the tension-compression combined strong support system of the present invention at a reserved hole;
FIG. 5 is a schematic structural view of the tension-compression combined strong support system of the present invention at an unreserved hole;
fig. 6 is a schematic structural view of the template lifting system according to the present invention;
fig. 7 is a schematic structural view of the limiting system of the present invention;
fig. 8 is a schematic structural view of the fine adjustment system of the present invention;
fig. 9 is a schematic structural view of the anti-cracking system of the present invention;
FIG. 10 is a schematic structural view of a slurry leakage prevention system according to the present invention;
in the figure: 1-side wall frame supporting I-steel, 2-diagonal supporting I-steel, 3-lower layer I-steel, 4-upper layer I-steel, 5-lower layer double-spliced channel steel, 6-upper layer double-spliced channel steel, 7-split screw rods, 8-batten, 9-bamboo plywood, 10-steel backing plates, 11-fine tuning bolts, 12-limiting steel plates, 13-I-steel flange plate clamping sleeves, 14-bolt end steel backing plates, 15-steel bar anti-cracking nets, 16-tensile section steel, 17-thin steel plates, 18-diagonal tensile steel bars, 19-concrete clamping grooves and 20-double faced adhesive tapes.
Detailed Description
As shown in figure 1 and figure 2, do the utility model relates to a draw and press the section sketch map that combines non-preformed hole department of support system and preformed hole department for hollow mound capping, draw and press the strong support system of combined, draw template system, spacing system, trimming system, crack control system and the leak protection thick liquid system of drawing frame girder steel bearing system, drawing including the simple supporting.
As shown in figure 3, do a brief formula is carried and is drawn frame girder steel bearing system's structural schematic diagram, including lateral wall frame support I-steel 1 and upper double pin channel-section steel 6, upper double pin channel-section steel 6 erects the lateral wall frame support I-steel 1 top at left and right both sides to the welded fastening, lateral wall frame support I-steel 1's length is not less than 1m, position apart from inboard 1/2 to 1/3 within range.
The tension-compression combined type strong support system comprises an oblique support I-steel 2, a lower layer I-steel 3 and an upper layer I-steel 4, wherein the lower layer I-steel 3 is of an integral structure at a non-reserved hole, as shown in figure 4, the reserved hole is of a broken structure, the upper layer I-steel 4 is welded at the top of the broken position, as shown in figure 5, the lower layer I-steel 3 and a side wall frame support I-steel 1 are welded together through the oblique support I-steel 2.
As shown in fig. 6, do carry the structure schematic diagram of drawing template system, including lower floor's double pin channel-section steel 5, split screw 7, flitch 8, bamboo plywood 9 and steel backing plate 10, lower floor's double pin channel-section steel 5's upper end pad is equipped with flitch 8, the lower extreme is provided with steel backing plate 10, flitch 8's upper end is provided with bamboo plywood 9, pass lower floor's double pin channel-section steel 5 in proper order to split screw 7, flitch 8, bamboo plywood 9 and upper strata double pin channel-section steel 6, both ends are locked through the nut, the nut is equipped with steel backing plate 10 with lower floor's double pin channel-section steel 5 and upper strata double pin channel-section steel 6's contact position pad, adjust the setting of split screw 7 nut degree of hunch in advance, be provided with waterproof ring to split screw 7.
As shown in fig. 7, do spacing system's structural schematic diagram, including fine setting bolt 11, spacing steel sheet 12 and I-steel flange board cutting ferrule 13, I-steel flange board cutting ferrule 13 passes through fine setting bolt 11 and installs in the edge of a wing department of I-steel to set for the position before the I-steel is pre-buried and punch, spacing steel sheet 12 and I-steel flange board cutting ferrule 13 vertical welding together, I-steel flange board cutting ferrule 13 can outwards be encorbelmented when 4 sizes of upper I-steel are 3 big than lower floor's I-steel, the size of encorbelmenting is greater than lower floor's I-steel, 1/2 of 3 flange board length.
As shown in fig. 8, do trimming system's schematic structure, trimming system sets up on diagonal bracing I-steel 2 and counter-pull screw rod 7, can eliminate through fine setting bolt 11 and draw the high deviation of pressing the binding form strong support system to set up the degree of arching in advance of upper double-pin channel-section steel 6, including bolt tip steel backing plate 14 and fine setting bolt 11, fine setting bolt 11 is installed on the I-steel, and 14 pads of bolt tip steel backing plate are established at fine setting bolt 11, through adjusting the screw in length of fine setting bolt 11 on the I-steel, finely tune from top to bottom the position of bolt tip steel backing plate 14, can eliminate the deviation in the pre-buried I-steel direction of height in the work progress.
As shown in fig. 9, do anti cracking system's schematic structure diagram, including reinforcing bar anti cracking net 15 and resistance to plucking shaped steel 16, reinforcing bar anti cracking net 15 sets up at the top setting of drawing and pressing the strong support system of convolution to utilize resistance to plucking shaped steel 16 to carry out reinforcement treatment to reinforcing bar anti cracking net 15.
As shown in fig. 10, for the structure schematic diagram of the slurry leakage prevention system, including sheet steel 17, slant tensile rib 18, concrete draw-in groove 19 and double faced adhesive tape 20, set up concrete draw-in groove 19 when the side wall is pour to pre-buried slant tensile rib 18 is as the notch strengthening rib, and sheet steel 17 is pasted with double faced adhesive tape 20 with bamboo plywood 9's contact position and concrete draw-in groove 19 position.
When the tension-compression combined supporting system is used for specific construction, the construction of the thin-wall hollow pier top is mainly completed through the following steps:
the method comprises the following steps: when the side wall of the thin-wall hollow pier is constructed, a pier top tension-compression combined type strong support system is installed and embedded, a thin-wall hollow anti-cracking system is additionally arranged, the exposed part of the embedded front tension-compression combined type strong support system is limited by a limiting system, a fine adjustment system is installed, the middle of profile steel at the position of a reserved hole is cut off, and a thin steel sheet 17 of a slurry leakage prevention system is installed;
step two: after the side wall meets the stripping condition, an operator removes and transports the internal support and the template through a preformed hole of the tension-compression combined type strong support system;
step three: mounting the I-steel through a preformed hole of the tension-compression combined type strong support system;
step four: i-shaped steel distribution beams are arranged on the upper part of the tension-compression combined type strong support system, and the elevation deviation generated in the construction process is adjusted through a fine adjustment system;
step five: assembling a lifting template system and an upper double-spliced channel steel 6 on the ground, integrally hoisting the lifting template system and the upper double-spliced channel steel 6 of the beam to the pier top and installing, and adjusting the position of a screw cap on a split screw 7 to set pre-camber;
step six: reliably connecting a thin steel sheet 17 of a slurry leakage prevention system pre-embedded at the chamfer of the thin-wall hollow pier with a bamboo plywood 9 through a double faced adhesive tape 20 and a nail;
step seven: the thin-wall hollow pier top is integrally cast at one time.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (4)
1. A tension-compression combined supporting system for capping a hollow pier is characterized by comprising a simply supported lifting frame steel beam bearing system, a tension-compression combined strong supporting system, a lifting template system, a limiting system, a fine adjustment system, an anti-cracking system and a slurry leakage preventing system;
the simply-supported lifting frame steel beam bearing system comprises side wall frame supporting I-shaped steel (1) and upper layer double-spliced channel steel (6), wherein the upper layer double-spliced channel steel (6) is erected above the side wall frame supporting I-shaped steel (1) on the left side and the right side and is firmly welded;
draw and press combination formula strong support system and include diagonal bracing I-steel (2), lower floor's I-steel (3) and upper I-steel (4), lower floor's I-steel (3) are overall structure in non-preformed hole department, are the disconnection structure in preformed hole department to the top welding at disconnection position has upper I-steel (4), lower floor's I-steel (3) support I-steel (1) through diagonal bracing I-steel (2) welding with lateral wall frame and are in the same place
The lifting template system comprises a lower-layer double-spliced channel steel (5), a counter-pulling screw rod (7), a batten (8), a bamboo rubber plate (9) and a steel base plate (10), wherein the upper end of the lower-layer double-spliced channel steel (5) is padded with the batten (8), the lower end of the lower-layer double-spliced channel steel is provided with the steel base plate (10), the upper end of the batten (8) is provided with the bamboo rubber plate (9), the counter-pulling screw rod (7) sequentially penetrates through the lower-layer double-spliced channel steel (5), the batten (8), the bamboo rubber plate (9) and the upper-layer double-spliced channel steel (6), two ends of the counter-pulling screw rod are locked through nuts, the steel base plate (10) is padded at the contact position of the nut, the nut position of the counter-pulling screw rod (7) is adjusted to set a pre-camber, and the counter-pulling screw rod (7) is provided with a waterproof ring;
the limiting system comprises a fine adjustment bolt (11), a limiting steel plate (12) and an I-steel flange plate clamping sleeve (13), the I-steel flange plate clamping sleeve (13) is installed at the flange of the I-steel through the fine adjustment bolt (11), holes are formed in the set position before the I-steel is embedded, and the limiting steel plate (12) and the I-steel flange plate clamping sleeve (13) are vertically welded together;
the fine adjustment system is arranged on the inclined support I-shaped steel (2) and the counter-pull screw (7), the height deviation of a tension-compression combined type strong support system can be eliminated through fine adjustment bolts (11), the pre-camber of the upper-layer double-spliced channel steel (6) is arranged, the fine adjustment system comprises bolt end steel base plates (14) and fine adjustment bolts (11), the fine adjustment bolts (11) are installed on the I-shaped steel, the bolt end steel base plates are arranged on the fine adjustment bolts (11) in a cushioning mode, the positions of the bolt end steel base plates (14) are finely adjusted up and down through adjusting the screwing length of the fine adjustment bolts (11) on the I-shaped steel, and the deviation in the height direction of pre-buried I-shaped steel in the construction process can be eliminated;
the anti-cracking system comprises a steel bar anti-cracking net (15) and anti-pulling section steel (16), wherein the steel bar anti-cracking net (15) is arranged at the top of the tension-compression combined strong support system, and the anti-pulling section steel (16) is used for reinforcing the steel bar anti-cracking net (15);
the slurry leakage prevention system comprises a thin steel sheet (17), oblique tensile ribs (18), concrete clamping grooves (19) and double faced adhesive tapes (20), wherein the concrete clamping grooves (19) are formed when the side wall is poured, the oblique tensile ribs (18) are embedded in advance and serve as notch reinforcing ribs, and the double faced adhesive tapes (20) are adhered to the contact positions of the thin steel sheet (17) and the bamboo plywood (9) and the positions of the concrete clamping grooves (19).
2. The tension-compression combined supporting system for capping the hollow pier is characterized in that the length of the side wall frame supporting I-shaped steel (1) is not less than 1m, and the position is within the range from 1/2 to 1/3 from the inner side.
3. The tension-compression combined supporting system for capping the hollow pier is characterized in that the thin steel sheets (17) on the bamboo plywood (9) are provided with inverted U-shaped grooves which are used as template sinking buffer grooves.
4. The tension-compression combined supporting system for capping the hollow pier as claimed in claim 1, wherein the I-steel flange plate clamping sleeve (13) can overhang outwards when the size of the upper layer I-steel (4) is larger than that of the lower layer I-steel (3), and the overhanging size is larger than 1/2 of the length of the flange plate of the lower layer I-steel (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022426893.XU CN214143312U (en) | 2020-10-28 | 2020-10-28 | Tension-compression combined supporting system for capping hollow pier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022426893.XU CN214143312U (en) | 2020-10-28 | 2020-10-28 | Tension-compression combined supporting system for capping hollow pier |
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| CN214143312U true CN214143312U (en) | 2021-09-07 |
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