CN110886224A - Supporting device for bridge construction and using method thereof - Google Patents
Supporting device for bridge construction and using method thereof Download PDFInfo
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- CN110886224A CN110886224A CN201911193123.0A CN201911193123A CN110886224A CN 110886224 A CN110886224 A CN 110886224A CN 201911193123 A CN201911193123 A CN 201911193123A CN 110886224 A CN110886224 A CN 110886224A
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- hoop
- support
- pier
- bridge construction
- supporting device
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of bridge construction, in particular to a supporting device for bridge construction and a using method thereof. The supporting device for bridge construction comprises a hoop and a supporting component; staple bolt detachably installs on the pier, and the supporting component includes first support piece, and the first end butt of first support piece is on the staple bolt, and the second end butt of first support piece is on the forming die of bent cap. According to the supporting device for bridge construction, the anchor ear is detachably connected to the bridge pier, and the forming die of the bent cap is supported through the matching of the first supporting piece and the anchor ear, so that the process of erecting the supporting device during bent cap construction in the prior art is simplified, and the construction efficiency is greatly improved. In addition, through connecting staple bolt detachably on the pier, when needs are under construction to the bent cap, can install the staple bolt on the pier, can dismantle at any time after the construction is accomplished, saved the repair process of later stage to the pier.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to a supporting device for bridge construction and a using method thereof.
Background
In the prior art, the construction method of the pier capping beam is generally a bracket method and a through bar method.
The support method is to treat the foundation after the pouring of the pier is finished, and after the bearing capacity of the foundation meets the requirement, a bowl buckle type support or a disc buckle type support is erected to serve as a support system of the bent cap. The method is more traditional and accords with the construction sequence of bridge construction from bottom to top. The foundation bearing capacity meets the requirements and the support is reasonably erected, so that the safety factor is high. However, in the construction by the support method, the steps of foundation treatment, support erection, support dismantling and the like all need to take a long time, so that the construction period is prolonged, and the requirements of flow construction cannot be met. And the labor required for setting up the support is more, and the support renting or purchasing cost is higher.
The through-bar method is characterized in that holes are reserved on the pier during construction of the pier, solid round steel penetrates into the holes to serve as a bearing anchoring device of a capping beam bottom template, and the method is applied to construction of high piers and deep water bridges. However, in the bar-penetrating method, holes need to be reserved before the bridge pier is lifted, and the holes need to be repaired in the later period.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a supporting device for bridge construction and a using method thereof, and aims to solve the problems that the process of erecting the supporting device during bridge construction is complex and the construction efficiency is low in the prior art.
(II) technical scheme
In order to solve the technical problem, the invention provides a supporting device for bridge construction, which comprises a hoop and a supporting component; the hoop is detachably mounted on the bridge pier, the supporting component comprises a first supporting piece, the first end of the first supporting piece is abutted to the hoop, and the second end of the first supporting piece is abutted to the forming die of the cover beam.
Further, the support assembly further comprises a jacking mechanism, and the jacking mechanism is arranged between the hoop and the first support piece.
Furthermore, the hoop comprises at least two hoop sections, and the two adjacent hoop sections are connected through a fastener.
Furthermore, a connecting section which protrudes along the radial direction of the hoop section is arranged at the connecting position of each hoop section.
Furthermore, a reinforcing rib is arranged between the connecting section and the outer peripheral surface of the hoop section.
Further, still include anti-skidding piece, anti-skidding piece is arranged in between staple bolt segmentation and the pier.
Furthermore, the inner side surface of the hoop section is also provided with an anti-skid bulge.
Further, the support assembly further comprises a second support piece, the second support piece is erected between the first support piece and the forming die, and the second support piece and the first support piece are arranged in a staggered mode.
According to another aspect of the present invention, an embodiment of the present invention provides a method for using the supporting device for bridge construction, including the following steps: installing the hoop on the bridge pier, abutting the first end of the first support piece against the hoop, and abutting the second end of the first support piece against a forming die of the bent cap; and casting the cover beam on the forming die.
Further, the supporting device for bridge construction comprises a jacking mechanism and an anti-skid piece, and the using method further comprises the following steps: placing the anti-skid piece between the hoop and the bridge pier; and placing the jacking mechanism between the hoop and the first support piece.
(III) advantageous effects
According to the supporting device for bridge construction, the anchor ear is detachably connected to the bridge pier, and the forming die of the bent cap is supported through the matching of the first supporting piece and the anchor ear, so that the process of erecting the supporting device during bent cap construction in the prior art is simplified, and the construction efficiency is greatly improved. In addition, through connecting staple bolt detachably on the pier, when needs are under construction to the bent cap, can install the staple bolt on the pier, can dismantle at any time after the construction is accomplished, saved the repair process of later stage to the pier. In addition, the supporting device for bridge construction has the advantages of simple structure, low cost, high implementability, strong universality and the like.
Drawings
Fig. 1 is a schematic front view of a supporting device for bridge construction according to an embodiment of the present invention;
fig. 2 is a schematic side view of a supporting device for bridge construction according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the hoop according to the embodiment of the present invention.
The reference numbers illustrate:
100. a bridge pier; 102. a first support member; 104. a capping beam; 106. forming a mold; 108. a jacking mechanism; 110. the hoop is segmented; 112. a connecting section; 114. reinforcing ribs; 116. a second support member.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, the present invention provides a supporting device for bridge construction, including a hoop and a supporting component; the hoop is detachably mounted on the pier 100, and the support assembly includes a first support 102, a first end of the first support 102 abuts against the hoop, and a second end of the first support 102 abuts against a forming mold 106 of the capping beam 104.
According to the supporting device for bridge construction, the hoops are detachably connected to the piers 100, and the forming die 106 of the bent cap 104 is supported through the matching of the first supporting piece 102 and the hoops, so that the process of erecting the supporting device during the construction of the bent cap 104 in the prior art is simplified, and the construction efficiency is greatly improved. In addition, through with staple bolt detachably connect on pier 100, when needs are under construction to bent cap 104, can install the staple bolt on pier 100, can dismantle at any time after the construction is accomplished, saved the repair process of later stage to pier 100. In addition, the supporting device for bridge construction has the advantages of simple structure, low cost, high implementability, strong universality and the like.
Specifically, the hoop is detachably connected to the pier 100, that is, the hoop may be installed on the pier 100 when the capping beam 104 needs to be constructed, and the hoop may be detached at any time after the construction is completed.
By providing the anchor ear, the anchor ear can be used as a supporting device, and the support of the forming mold 106 of the cover beam 104 can be realized. Thus, the step of erecting a bracket or forming a hole in the pier 100 in the prior art is omitted, and the process of constructing the capping beam 104 is simplified.
In this embodiment, the hoop and the forming mold 106 of the cover beam 104 are supported by the first support member 102. Specifically, the first supporting member 102 in this embodiment may be an i-beam, which has the purpose of high structural strength and convenient material selection. In the present embodiment, the end faces of the two ends of the i-beam are respectively abutted against the anchor ear and the forming die 106 of the cover beam 104.
Further, in the preferred embodiment, the support set assembly further includes a jacking mechanism 108, the jacking mechanism 108 being interposed between the hoop and the first support 102.
As shown in fig. 1 and 2, the jacking mechanism 108 in this embodiment may be a jack, a base of the jack abuts against an upper top surface of the hoop, and a pillar of the jack abuts against a lower surface of the i-steel. The height of the forming template of the cover beam 104 can be controlled by arranging the jack, and the supporting device for bridge construction has good universality.
As shown in fig. 3, further, the anchor ear includes at least two anchor ear segments 110, and two adjacent anchor ear segments 110 are connected by a fastener. By providing the anchor ear to be detachably both-end anchor ear sections 110, it is easier to install the anchor ear to the pier 100. Moreover, since the pier 100 is generally thicker, the size of the anchor ear is correspondingly increased, and the anchor ear is arranged in a detachable structure, so that the production, the manufacture and the transportation can be facilitated.
Further, in order to ensure the connection strength between the hoop sections 110, a connection section 112 protruding in the radial direction of the hoop section 110 is provided at the connection position of each hoop section 110.
Referring to fig. 3, the connecting section 112 is disposed at the connecting position of the hoop section 110 to facilitate connection of connecting members such as bolts, and the connecting section 112 can improve the structural strength of the hoop to some extent. A plurality of through holes may be formed in the connecting section 112, and then a connecting member such as a bolt is used to pass through the through holes to connect the two adjacent hoop sections 110.
Preferably, the through holes are in a multi-row and multi-column form, so that the connection strength between two adjacent hoop sections 110 can be improved by connecting the two adjacent hoop sections 110 through bolts.
Still further, a reinforcing rib 114 is further disposed between the connecting section 112 and the outer circumferential surface of the hoop section 110. By arranging the reinforcing ribs 114, the structural strength of the anchor ear can be further improved, and the connection stability between the connecting section 112 and the outer peripheral surface of the anchor ear segment 110 is correspondingly improved.
In this embodiment, the hoop section 110 may be made of a metal material, for example, a steel plate is directly bent to form the main structure of the hoop section 110, and then the reinforcement is connected to the main structure of the hoop section 110 by welding or the like.
Still further, the supporting device for bridge construction further comprises an anti-slip member, and the anti-slip member is arranged between the hoop segment 110 and the pier 100.
Since the section of the pier 100 cannot be perfectly circular, the non-circularity of each pier 100 is different, and the non-circularity varies greatly even in different sections of the same pier 100. Therefore, in order to adapt to pier bodies with various out-of-roundness, the anti-skidding device is arranged. Through setting up the anti-skidding piece can improve the frictional force between staple bolt and the pier 100 and compensate the clearance between staple bolt and the pier 100 to a certain extent. For example, the anti-slip members may be made of rubber or the like. Wherein, the height that can be than the staple bolt of antiskid is slightly big, can realize skid-proof effect like this better.
In addition, since the anchor ear is provided on the pier 100 as a supporting means, in order to further increase the frictional force between the anchor ear and the pier 100, an anti-slip protrusion is further provided on the inner side surface of the anchor ear segment 110. For example, the anti-slip protrusions may be a protrusion structure formed on the inner side of the hoop section 110. The anti-slip protrusions may be arranged at equal intervals or randomly, so long as the friction between the anchor ear and the pier 100 can be improved.
Referring to fig. 1 and fig. 2, the supporting assembly further includes a second supporting member 116, the second supporting member 116 is erected between the first supporting member 102 and the forming mold 106, and the second supporting member 116 and the first supporting member 102 are disposed in a staggered manner.
In this way, stable support of the forming die 106 of the bent cap 104 can be achieved by further disposing the forming die 106 of the bent cap 104 on the upper surface of the channel steel.
According to another aspect of the invention, an embodiment of the invention provides a use method of the supporting device for bridge construction.
The use method of the supporting device for bridge construction provided by the invention can realize the following technical effects by using the supporting device for bridge construction as described above: the anchor ear is detachably connected to the pier 100, and the forming die 106 of the bent cap 104 is supported by the first support member 102 and the anchor ear, so that the process of erecting a support device during construction of the bent cap 104 in the prior art is simplified, and the construction efficiency is greatly improved. In addition, through with staple bolt detachably connect on pier 100, when needs are under construction to bent cap 104, can install the staple bolt on pier 100, can dismantle at any time after the construction is accomplished, saved the repair process of later stage to pier 100. In addition, the supporting device for bridge construction has the advantages of simple structure, low cost, high implementability, strong universality and the like.
The use method of the supporting device for bridge construction provided by the invention comprises the following steps:
after the construction of the pier 100 is completed, the exact position of the lower edge of the hoop on the pier 100 is calculated back according to the designed elevation of the bent cap 104, and the hoop is marked so as to be accurately positioned;
in order to facilitate the installation of the forming die 106 of the capping beam 104, when the concrete of the pier 100 is poured, the concrete elevation of the top of the pier 100 is controlled to be 5 cm higher than the designed elevation;
after the concrete of the pier 100 reaches over 75% of the design strength, chiseling the top of the pier 100, chiseling cement mortar and a loose layer at the top, chiseling the top to fresh concrete, and blowing the fresh concrete by using an air compressor; at the moment, the elevation is controlled to be about 3 cm higher than the design elevation so as to be convenient for installing the forming die 106 of the cover beam 104;
at this time, the hoop section 110 is transported to a construction site, the anti-skid member is fixed to the pier 100 in the marked position in a bonding mode or the like, and then the hoop is installed on the pier 100;
after the hoop is fixed, the base of the jacking mechanism 108 is placed on the upper surface of the hoop, the pillars of the jacking mechanism 108 extend out by the same length, and then the pillars of the jacking mechanism 108 are stably connected with the first supporting piece 102;
after the first supporting member 102 is placed stably, a plurality of second supporting members 116 are laid on the first supporting member 102 in a manner perpendicular to the first supporting member, wherein the second supporting members 116 can be laid at intervals of 0.3 m;
after the second supporting member 116 is laid, 10 × 10 square timbers are laid on the second supporting member 116, the first and the last timbers are placed at positions close to the pier 100, and the scaffold boards of the scaffold are used as operation platforms;
at this time, the molding die 106 of the bent cap 104 is set on the square lumber.
In addition, in order to ensure that the supporting device for bridge construction can meet the self weight of the supporting capping beam 104 and various construction loads, the supporting device for bridge construction needs to be pre-loaded with loads so as to test whether the supporting device for bridge construction can meet various loads of the capping beam 104 construction, eliminate the inelastic deformation of the supporting device for bridge construction, detect the settlement amount of the supporting device for bridge construction and ensure the absolute safety of the capping beam 104 construction;
the loading process is carried out by four stages, and the sinking amount of the hoop and the deflection of the I-steel are measured and observed by a level gauge respectively. The specific loading process is as follows:
the first loading is 60 percent of the total weight, and 70.2 tons of the total weight are loaded; and pausing for 3-5 hours to observe the deflection of the I-steel and the sinking amount of the hoop.
The second loading is carried out until the weight is 80 percent of the total weight and 93.6 tons; and pausing for 3-5 hours to observe the deflection of the I-steel and the sinking amount of the hoop.
The third loading is carried out until the total weight is 100 percent and 117 tons; and pausing for 3-5 hours to observe the deflection of the I-steel and the sinking amount of the hoop.
Fourth loading to 120% of total weight, 140 tons; after the stacking is finished, settlement observation is carried out, the time interval of every two observation times in the initial loading stage is controlled to be about 2 hours, after settlement is stable, the observation time is adjusted to be 3 times every day, and the observation time is adjusted to be respectively used in the morning, the evening and the morning (settlement is stable, which means that the accumulated settlement amount is not more than 3 millimeters within 1 day), and the observation time is carried out again after unloading;
uninterrupted observation 72 hours after loading: the I-steel and the hoop are gradually increased along with the load, the I-steel winding degree is in a rising trend along with the increase of the load, and the I-steel winding degree is stable along with the end of the loading;
the anchor ear has no obvious change of settlement along with the increase of load and time and tends to be in a stable state. Unloading can be carried out only when the sedimentation amount is less than 3 mm, and unloading is carried out reversely according to the stacking sequence, namely, the unloading is carried out layer by layer from the upper layer to the lower layer.
In summary, the supporting device for bridge construction and the using method thereof provided by the embodiments of the present invention have the following technical effects:
according to the supporting device for bridge construction, the hoops are detachably connected to the piers 100, and the forming die 106 of the bent cap 104 is supported through the matching of the first supporting piece 102 and the hoops, so that the process of erecting the supporting device during the construction of the bent cap 104 in the prior art is simplified, and the construction efficiency is greatly improved. In addition, through with staple bolt detachably connect on pier 100, when needs are under construction to bent cap 104, can install the staple bolt on pier 100, can dismantle at any time after the construction is accomplished, saved the repair process of later stage to pier 100. In addition, the supporting device for bridge construction has the advantages of simple structure, low cost, high implementability, strong universality and the like.
The height of the forming template of the cover beam 104 can be controlled by arranging the jack, and the supporting device for bridge construction has good universality.
By providing the anchor ear to be detachably both-end anchor ear sections 110, it is easier to install the anchor ear to the pier 100. Moreover, since the pier 100 is generally thicker, the size of the anchor ear is correspondingly increased, and the anchor ear is arranged in a detachable structure, so that the production, the manufacture and the transportation can be facilitated.
By arranging the reinforcing ribs 114, the structural strength of the anchor ear can be further improved, and the connection stability between the connecting section 112 and the outer peripheral surface of the anchor ear segment 110 is correspondingly improved.
Through setting up the anti-skidding piece can improve the frictional force between staple bolt and the pier 100 and compensate the clearance between staple bolt and the pier 100 to a certain extent. For example, the anti-slip members may be made of rubber or the like. Wherein, the height that can be than the staple bolt of antiskid is slightly big, can realize skid-proof effect like this better.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The supporting device for bridge construction is characterized by comprising a hoop and a supporting assembly;
the hoop is detachably mounted on a pier (100), the support assembly comprises a first support piece (102), a first end of the first support piece (102) abuts against the hoop, and a second end of the first support piece (102) abuts against a forming die (106) of the cover beam (104).
2. The support device for bridge construction according to claim 1, wherein the support set assembly further comprises a jacking mechanism (108), the jacking mechanism (108) being interposed between the hoop and the first support member (102).
3. The supporting device for bridge construction as claimed in claim 1, wherein the anchor ear comprises at least two anchor ear segments (110), and two adjacent anchor ear segments (110) are connected by a fastener.
4. The supporting device for bridge construction according to claim 3, wherein a connection section (112) protruding in a radial direction of the anchor ear section (110) is provided at a connection position of each anchor ear section (110).
5. The support device for bridge construction according to claim 4, wherein a reinforcing rib (114) is further provided between the connecting section (112) and the outer circumferential surface of the hoop section (110).
6. The support device for bridge construction according to claim 3, further comprising an anti-slip member interposed between the hoop section (110) and the pier (100).
7. The supporting device for bridge construction as claimed in claim 3, wherein the inner side of the hoop section (110) is further provided with an anti-slip protrusion.
8. The support device for bridge construction according to claim 1, wherein the support assembly further comprises a second support member (116), the second support member (116) is spanned between the first support member (102) and the forming die (106), and the second support member (116) is staggered from the first support member (102).
9. A method of using the support device for bridge construction according to any one of claims 1 to 8, comprising the steps of:
installing the hoop on the pier (100), abutting a first end of the first support (102) on the hoop, and abutting a second end of the first support (102) on a forming die (106) of a cover beam (104);
-casting the lid beam (104) on the forming mould (106).
10. The use method according to claim 9, wherein the supporting device for bridge construction comprises a jacking mechanism (108) and a skid-proof piece, and the use method further comprises the following steps:
placing the anti-slip piece between the hoop and the bridge pier (100); placing the jacking mechanism (108) between the hoop and the first support (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911193123.0A CN110886224A (en) | 2019-11-28 | 2019-11-28 | Supporting device for bridge construction and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911193123.0A CN110886224A (en) | 2019-11-28 | 2019-11-28 | Supporting device for bridge construction and using method thereof |
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| Publication Number | Publication Date |
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| CN110886224A true CN110886224A (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911193123.0A Pending CN110886224A (en) | 2019-11-28 | 2019-11-28 | Supporting device for bridge construction and using method thereof |
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| CN (1) | CN110886224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113005919A (en) * | 2021-04-23 | 2021-06-22 | 浙江数智交院科技股份有限公司 | Pier construction device and pier construction method |
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| DE102008044918A1 (en) * | 2008-03-29 | 2009-12-10 | Spankern Gmbh | Coupling sleeve for cleansing coupled anchor for strand clamping method with connection for inserting in engineering work, e.g. bridge and tower, has standard force-locked construction for connecting two sheathed tendons |
| CN202416183U (en) * | 2011-12-23 | 2012-09-05 | 中铁十九局集团第五工程有限公司 | Bent cap collar-clamp type cast support |
| CN205604088U (en) * | 2016-05-12 | 2016-09-28 | 中铁十局集团第二工程有限公司 | But bent cap quick adjustment support |
| CN109404380A (en) * | 2018-10-10 | 2019-03-01 | 林丹 | The big load anchor ear device of cylinder |
| CN208899341U (en) * | 2018-09-12 | 2019-05-24 | 中交路桥建设有限公司 | A kind of light-duty anchor ear for cylinder pier Coping Construction |
| CN209384109U (en) * | 2018-11-22 | 2019-09-13 | 中建七局安装工程有限公司 | Elevated bridge construction anchor ear operating platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008044918A1 (en) * | 2008-03-29 | 2009-12-10 | Spankern Gmbh | Coupling sleeve for cleansing coupled anchor for strand clamping method with connection for inserting in engineering work, e.g. bridge and tower, has standard force-locked construction for connecting two sheathed tendons |
| CN202416183U (en) * | 2011-12-23 | 2012-09-05 | 中铁十九局集团第五工程有限公司 | Bent cap collar-clamp type cast support |
| CN205604088U (en) * | 2016-05-12 | 2016-09-28 | 中铁十局集团第二工程有限公司 | But bent cap quick adjustment support |
| CN208899341U (en) * | 2018-09-12 | 2019-05-24 | 中交路桥建设有限公司 | A kind of light-duty anchor ear for cylinder pier Coping Construction |
| CN109404380A (en) * | 2018-10-10 | 2019-03-01 | 林丹 | The big load anchor ear device of cylinder |
| CN209384109U (en) * | 2018-11-22 | 2019-09-13 | 中建七局安装工程有限公司 | Elevated bridge construction anchor ear operating platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113005919A (en) * | 2021-04-23 | 2021-06-22 | 浙江数智交院科技股份有限公司 | Pier construction device and pier construction method |
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Application publication date: 20200317 |