CN111088755A - Bridge construction method - Google Patents
Bridge construction method Download PDFInfo
- Publication number
- CN111088755A CN111088755A CN201911251728.0A CN201911251728A CN111088755A CN 111088755 A CN111088755 A CN 111088755A CN 201911251728 A CN201911251728 A CN 201911251728A CN 111088755 A CN111088755 A CN 111088755A
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- China
- Prior art keywords
- bottom die
- longitudinal beam
- segment
- construction method
- bridge construction
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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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- 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
- E01D21/10—Cantilevered erection
Abstract
The invention discloses a bridge construction method, which comprises the following steps: s1, arranging a second bottom die on the second section, and enabling a second bottom die longitudinal beam to extend out of one side of the second section; s2, arranging a first bottom die on the first section, enabling a first bottom die longitudinal beam to extend out of one end, opposite to the second section, of the first section, wherein the extending part of the second bottom die longitudinal beam is fixed on the first section through the hanging basket and a hanging strip arranged on the hanging basket; s3, arranging a lap joint part between the first bottom die longitudinal beam and the second bottom die longitudinal beam, and welding the lap joint part with the first bottom die longitudinal beam and the second bottom die longitudinal beam; s4, arranging an inner mold and an outer mold for pouring concrete on the lap joint part, and pouring the concrete to form a closure section; by applying the bridge construction method, the construction time can be effectively saved.
Description
Technical Field
The invention relates to the field of building construction, in particular to a bridge construction method.
Background
With the continuous development of bridge construction technology, large-span continuous beam reinforced concrete bridges are widely applied, and the construction of the side span cast-in-place section influences the construction quality and the engineering progress of the whole bridge.
In the process of closing a large bridge segment, the common method is that hanging baskets are arranged on two sides of a closing segment after a hanging basket is removed, then pre-pressing is carried out on the segment, and then closing is carried out.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a bridge construction method which can effectively save the construction time for installing hanging baskets.
A bridge construction method according to an aspect of the present invention includes: s1, arranging a second bottom die on the second section, and enabling a second bottom die longitudinal beam to extend out of one side of the second section; s2, arranging a first bottom die on the first section, enabling a first bottom die longitudinal beam to extend out of one end, opposite to the second section, of the first section, wherein the extending part of the second bottom die longitudinal beam is fixed on the first section through the hanging basket and a hanging strip arranged on the hanging basket; s3, arranging a lap joint part between the first bottom die longitudinal beam and the second bottom die longitudinal beam, and welding the lap joint part with the first bottom die longitudinal beam and the second bottom die longitudinal beam; and S4, arranging an inner die and an outer die for pouring concrete on the lap joint part, and pouring the concrete to form a closure section.
Further, the second bottom die is a cast-in-place support bottom die.
Further, the length a of the second bottom die longitudinal beam extending out of the second segment is 0.9m, and the length b of the first bottom die longitudinal beam extending out of the first segment is 0.6 m.
Further, the lap joint includes a steel beam made of I25I-steel.
Further, step S3 includes providing battens with a distance of 15cm on the overlapping portion, wherein the battens have a specification of 12cm by 12 cm.
Further, step S3 includes removing the two outermost straps on both sides of the second bottom mold extension.
Further, step S1 includes: and a hanging basket is arranged on the first section, a hanging strip is arranged on the hanging basket, and the part of the second bottom die longitudinal beam extending out of one side of the second section is fixed through the hanging strip.
Further, the length a of the second bottom die longitudinal beam extending out of the second segment is 0.9m, and the length b of the first bottom die longitudinal beam extending out of the first segment is 0.9 m.
Further, step S3 includes removing the two outermost straps on both sides of the second bottom mold extension.
Further, step S4 includes: at least 3 longitudinal beams are welded between the first bottom die longitudinal beam and the first section, and/or at least 3 longitudinal beams are directly welded between the second bottom die longitudinal beam and the second section.
By applying the bridge construction method, when the bridge is folded, the hanging basket does not need to be detached, but the first bottom die longitudinal beam is fixed on the hanging belt directly by arranging the hanging belt on the hanging basket; in the folding process, additional time is not needed for installing the hanging basket, the quality of the hanging basket is not needed to be verified through a pre-pressing experiment in the folding process because the installation quality of the hanging basket is verified when the sections are poured, and the construction time is further saved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a bridge construction method according to an embodiment of the present invention;
FIG. 2 is a schematic view of another bridge construction method according to an embodiment of the present invention;
the figures contain the following reference numerals:
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, a bridge construction method includes: s1, arranging a second bottom die on the second segment 200, so that the second bottom die longitudinal beam 210 extends out of one side of the second segment 200; s2, arranging a first bottom die on the first section 100, so that the first bottom die longitudinal beam 110 extends out of one end of the first section 100 relative to the second section 200, wherein the extended part of the second bottom die longitudinal beam 210 is fixed on the first section 100 through the hanging basket 600 and the hanging strip 610 arranged on the hanging basket 600; s3, providing a bridging portion 400 between the first bottom mold longitudinal beam 110 and the second bottom mold longitudinal beam 210, and welding the bridging portion 400 to both the first bottom mold longitudinal beam 110 and the second bottom mold longitudinal beam 210. And S4, arranging an inner die and an outer die for pouring concrete on the lap joint part 400, and pouring the concrete to form the closure segment 500.
By applying the bridge construction method of the embodiment, when the bridge is folded, the hanging basket 600 does not need to be detached, and the first bottom die longitudinal beam 110 is fixed on the hanging basket 610 by directly arranging the hanging strip 610 on the hanging basket 600; in the folding process, additional time is not needed for installing the hanging basket, the quality of the hanging basket 600 is not needed to be verified through a pre-pressing experiment in the folding process because the installation quality of the hanging basket 600 is verified when the sections are poured, and the construction time is further saved.
In order to meet the construction requirement of side span closure, the second bottom die is a cast-in-place support bottom die, wherein the second bottom die longitudinal beam 210 is arranged above the cast-in-place support 300.
Specifically, in order to facilitate welding of the first bottom die longitudinal beam 110 and the second bottom die longitudinal beam 210 and ensure that the welding strength meets the requirement, the length a of the second bottom die longitudinal beam 210 extending out of the second segment 200 is 0.9m, and the length b of the first bottom die longitudinal beam 110 extending out of the first segment 100 is 0.6 m.
Specifically, the lap joint 400 includes steel beams made of I25I-steel.
Wherein, 2I 25I-steel can be set up to the overlap joint portion 400 side, and 4I 25I-steel can be set up to overlap joint portion 400 bottom surface.
In order to better enable the overlapping part 400 to bear the concrete poured in the closure segment 500, the step S3 includes that battens with the interval of 15cm are arranged on the overlapping part 400, and the specification of the battens is 12cm by 12 cm; before pouring, the pouring mold is arranged above the battens.
In general, in order to ensure the stable running of the first bottom mold longitudinal beam 110, a plurality of hanging straps 610 are arranged on the hanging basket 600, and during construction, the hanging straps 610 closest to both sides of the folding section 500 influence the movement of the concrete outer mold, so that the two hanging straps 610 at both outermost sides of the second bottom mold extension are required to be removed in step S3.
As shown in fig. 2, in order to meet the requirement of mid-span closure construction, step S1 includes: a hanging basket 600 is arranged on the first segment 100, a hanging belt 610 is arranged on the hanging basket 600, and the part of the second bottom die longitudinal beam 210 extending out of one side of the second segment 200 is fixed through the hanging belt 610; at this time, two bottom mold longitudinal beams to be welded are fixed by the hanging baskets 600 and the hanging straps 610 at two sides.
The length a of the second bottom die longitudinal beam 210 extending out of the second segment 200 is 0.9m, and the length b of the first bottom die longitudinal beam 110 extending out of the first segment 100 is 0.9 m.
Similarly, step S3 includes removing the two outermost straps 610 on either side of the second bottom mold extension.
In order to ensure the stability of the bottom mold longitudinal beam of the hanging basket 600, the step S4 includes: at least 3 stringers are welded between the first bottom die stringer 110 and the first segment 100, and/or at least 3 stringers are welded directly between the second bottom die stringer 210 and the second segment 200.
In the present embodiment, the labels S1, S2, etc. for each step should be understood to have a limiting effect on the order of the steps.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A bridge construction method is characterized by comprising the following steps:
s1, arranging a second bottom die on the second section (200) so that a second bottom die longitudinal beam (210) extends out of one side of the second section (200);
s2, arranging a first bottom die on the first segment (100) so that a first bottom die longitudinal beam (110) extends out of one end of the first segment (100) relative to the second segment (200), wherein the extending part of the second bottom die longitudinal beam (210) is fixed on the first segment (100) through a hanging basket (600) and a hanging strip (610) arranged on the hanging basket (600);
s3, set up bridging portion (400) between first die block longeron (110) and second die block longeron (210), bridging portion (400) with first die block longeron (110) with second die block longeron (210) all welds.
And S4, arranging an inner die and an outer die for pouring concrete on the lap joint part (400), and pouring the concrete to form a closure section (500).
2. The bridge construction method according to claim 1, wherein the second bottom die is a cast-in-place support bottom die.
3. The bridge construction method according to claim 2, wherein the length a of the second bottom die longitudinal beam (210) extending out of the second segment (200) is 0.9m, and the length b of the first bottom die longitudinal beam (110) extending out of the first segment (100) is 0.6 m.
4. The bridge construction method according to claim 2, wherein the lap joint part (400) comprises a steel beam made of I25I-steel.
5. The bridge construction method according to claim 2, wherein the step S3 includes providing battens having a pitch of 15cm on the overlapping part (400), the battens having a size of 12cm x 12 cm.
6. The bridge construction method according to claim 2, wherein the step S3 includes removing two outermost hanging straps (610) on both sides of the second bottom mold extension.
7. The bridge construction method according to claim 1, wherein the step S1 includes: a hanging basket (600) is arranged on the first segment (100), a hanging belt (610) is arranged on the hanging basket (600), and the part of the second bottom die longitudinal beam (210) extending out of one side of the second segment (200) is fixed through the hanging belt (610).
8. The bridge construction method according to claim 7, wherein the length a of the second bottom die longitudinal beam (210) extending out of the second segment (200) is 0.9m, and the length b of the first bottom die longitudinal beam (110) extending out of the first segment (100) is 0.9 m.
9. The bridge construction method according to claim 7, wherein the step S3 includes removing two outermost hanging straps (610) on both sides of the second bottom mold extension.
10. The bridge construction method according to claim 7, wherein the step S4 includes: at least 3 stringers are welded between the first bottom die stringer (110) and the first segment (100), and/or at least 3 stringers are welded directly to the second bottom die stringer (210) and the second segment (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911251728.0A CN111088755A (en) | 2019-12-09 | 2019-12-09 | Bridge construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911251728.0A CN111088755A (en) | 2019-12-09 | 2019-12-09 | Bridge construction method |
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| CN111088755A true CN111088755A (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911251728.0A Pending CN111088755A (en) | 2019-12-09 | 2019-12-09 | Bridge construction method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63284304A (en) * | 1987-05-15 | 1988-11-21 | 大成建設株式会社 | Execution of bridge central closure part in cantilevered type construction method |
| JP2000045230A (en) * | 1998-07-30 | 2000-02-15 | Taisei Corp | Closing method for closing part in pc bridge cantilever overhang erection work |
| CN201526011U (en) * | 2009-07-14 | 2010-07-14 | 四川路桥桥梁工程有限责任公司 | Assembly type non-bracket casting side span cast-in-situ section and closure section in continuous rigid structure |
| CN105088969A (en) * | 2015-09-09 | 2015-11-25 | 上海城建市政工程（集团）有限公司 | Closure method for multi-tower single-cable-plane cable-stayed bridge |
| CN106522102A (en) * | 2016-11-22 | 2017-03-22 | 中交公局海威工程建设有限公司 | Side span construction support, rigid frame bridge side span and rigid frame bridge |
| CN207998792U (en) * | 2017-12-14 | 2018-10-23 | 中交一公局海威工程建设有限公司 | A kind of Hanging Basket rack mounting structure |
| CN109736206A (en) * | 2019-01-28 | 2019-05-10 | 宁波交通工程建设集团有限公司 | Wavelike steel webplate continuous bridge end bay closes up cast-in-place support structure and construction method |
-
2019
- 2019-12-09 CN CN201911251728.0A patent/CN111088755A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63284304A (en) * | 1987-05-15 | 1988-11-21 | 大成建設株式会社 | Execution of bridge central closure part in cantilevered type construction method |
| JP2000045230A (en) * | 1998-07-30 | 2000-02-15 | Taisei Corp | Closing method for closing part in pc bridge cantilever overhang erection work |
| CN201526011U (en) * | 2009-07-14 | 2010-07-14 | 四川路桥桥梁工程有限责任公司 | Assembly type non-bracket casting side span cast-in-situ section and closure section in continuous rigid structure |
| CN105088969A (en) * | 2015-09-09 | 2015-11-25 | 上海城建市政工程（集团）有限公司 | Closure method for multi-tower single-cable-plane cable-stayed bridge |
| CN106522102A (en) * | 2016-11-22 | 2017-03-22 | 中交公局海威工程建设有限公司 | Side span construction support, rigid frame bridge side span and rigid frame bridge |
| CN207998792U (en) * | 2017-12-14 | 2018-10-23 | 中交一公局海威工程建设有限公司 | A kind of Hanging Basket rack mounting structure |
| CN109736206A (en) * | 2019-01-28 | 2019-05-10 | 宁波交通工程建设集团有限公司 | Wavelike steel webplate continuous bridge end bay closes up cast-in-place support structure and construction method |
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Application publication date: 20200501 |
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