CN111877169A - Construction method for erecting land heavy end cross beam without support and large crane - Google Patents
Construction method for erecting land heavy end cross beam without support and large crane Download PDFInfo
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- CN111877169A CN111877169A CN202010714617.5A CN202010714617A CN111877169A CN 111877169 A CN111877169 A CN 111877169A CN 202010714617 A CN202010714617 A CN 202010714617A CN 111877169 A CN111877169 A CN 111877169A
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- end beam
- beam segment
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- anchoring
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a construction method for erecting a land heavy end beam without a support and a large crane, which comprises the steps of manufacturing the end beam in sections and transporting; an anchoring hanger system is arranged on site; and hoisting the left side end beam segment and anchoring by using a bridge deck crane, hoisting the right side end beam segment and anchoring, hoisting the middle end beam segment and welding the middle end beam segment and the left and right segments into a whole, and finishing the erection of the end beam. The erection method can finish the erection of the heavy end beam of the high pier under the condition that no pier-side support is arranged and no ground large-scale crane is matched, and has the advantages that the pier-side support and the ground large-scale crane are not required to be invested to save a temporary steel structure and mechanical equipment, the engineering progress is fast, the construction difficulty is small, the cost investment is small, and the method is more green and environment-friendly.
Description
Technical Field
The invention relates to a bridge construction method, in particular to a construction method for erecting a pier top heavy end beam without arranging a pier-side support and a ground large crane in a matching manner under a land high pier environment.
Background
With the rapid development of economy in China and the progress of bridge technology, the number of large-span bridges constructed on the river and lake surfaces in China is increased, and particularly, the cable-stayed bridge is widely applied because of attractive appearance and economy. The superposed beam cable-stayed bridge has less steel consumption and gradually becomes the mainstream of the upper structure of the cable-stayed bridge.
The side pier end cross beam is used as an important fulcrum of the bridge, plays a role in maintaining the structural stability of the full-bridge ballast weight, and is heavy in structural weight. The traditional construction method comprises the following steps: firstly, a floor support is erected and hoisted in sections, and the support is detached after being welded as a whole. The method needs to put in a pier-side bracket and push related equipment in advance, and the cost investment is high; secondly, the whole is processed in a factory, and a large crane is adopted to carry out integral hoisting and erection. The method has high requirement on the field, and generally needs large tonnage of hoisting equipment and high cost. Therefore, a new construction method which saves the investment of the bracket and the equipment is needed to be researched.
Disclosure of Invention
The invention aims to provide a construction method for erecting a land heavy end beam without a support and a large crane, so as to save the investment of temporary steel structures and mechanical equipment.
The object of the invention is achieved in that:
a construction method for erecting a land heavy end beam without a support and a large crane is characterized by comprising the following steps: the method comprises the following specific steps:
A. the end beam is processed in a factory in three sections, the weight of each section is controlled within the hoisting performance of the bridge deck crane, and the end beam is transported to a construction site after the end beam is finished; welding lifting lugs and reserved anchoring holes in a factory in advance on the end cross beam; installing a temporary anchoring hanger system on site;
B. hoisting the left-side end beam segment by using a bridge deck crane, adjusting the position of the left-side end beam segment, anchoring the left-side end beam segment on a left-side hanger system, and releasing a hook of the bridge deck crane; constructing the side high-strength bolt to enable the left side end cross beam segment and the left longitudinal beam to be connected into a whole;
C. lifting the right side end cross beam segment by using a bridge deck crane, anchoring the right side end cross beam segment to a right side hanger system after adjusting the position of the right side end cross beam segment, and releasing a hook of the bridge deck crane; constructing the side high-strength bolt to enable the right side end cross beam segment and the right longitudinal beam to be connected into a whole;
D. hoisting the middle end beam segment by using a bridge deck crane to enable the middle end beam segment to be butted with the left side end beam segment and the right side end beam segment, and welding the three segments into a whole after the line type is adjusted; and (5) detecting and coating the welding line, and erecting the end beam.
Under the condition that no pier-side support is arranged and no ground large-scale crane is matched, the method firstly manufactures and transports the end cross beam in sections; an anchoring hanger system is arranged on site; and hoisting the left side end beam segment and anchoring by using a bridge deck crane, hoisting the right side end beam segment and anchoring, hoisting the middle end beam segment and welding the middle end beam segment and the left and right segments into a whole, thereby completing erection of the high-pier heavy-duty end beam. Therefore, the method has the advantages of saving the investment of temporary steel structures and mechanical equipment without investing pier-side supports and large ground cranes, along with quick project progress, small construction difficulty, low cost investment and greenness and environmental protection.
Drawings
FIG. 1 is a schematic elevational layout of the present invention;
FIG. 2 is a schematic cross-sectional layout of the present invention;
FIG. 3 is a schematic view of the construction step A of the present invention;
FIG. 4 is a schematic view of the construction step B of the present invention;
FIG. 5 is a schematic view of the construction step C of the present invention;
FIG. 6 is a schematic view of the construction step D of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
A construction method for erecting a land heavy end beam without a support and a large crane comprises the following specific steps:
A. the length of the end beam 1 is 33.08m, the weight is 140t, the end beam is divided into three sections to be processed in a factory, the weight of each section is controlled within the lifting weight performance of the bridge deck crane, and the end beam 1 is transported to a No. 6 pier of a construction site after the end beam is completed. The ground elevation +2.000m and the beam surface elevation 52.630 m. A lifting lug and a reserved anchoring hole are welded on the end beam 1 in a factory in advance; installing a temporary anchoring hanger system 2 on site;
B. hoisting the left-side end beam segment 3 by using a bridge deck crane, adjusting the position of the left-side end beam segment 3, anchoring the left-side end beam segment 3 on the left-side hanger system 6 by using anchoring steel bars 10, and releasing the hook of the bridge deck crane; constructing the side high-strength bolt to connect the left side end cross beam section 3 and the left longitudinal beam 8 into a whole;
C. lifting the right side end beam section 4 by using a bridge deck crane, anchoring the right side end beam section 4 on a right side hanger system 7 by using anchoring steel bars 10 after adjusting the position of the right side end beam section 4, and releasing a hook of the bridge deck crane; constructing the side high-strength bolt to connect the right side end cross beam section 4 and the right longitudinal beam 9 into a whole;
D. hoisting the middle end beam segment 5 by using a bridge deck crane to enable the middle end beam segment 5 to be in butt joint with the left side end beam segment 3 and the right side end beam segment 4, and welding the three segments into a whole after the line type is adjusted; and (5) detecting and coating the welding line, and erecting the end beam.
Claims (1)
1. A construction method for erecting a land heavy end beam without a support and a large crane is characterized by comprising the following steps: the method comprises the following specific steps:
A. the end beam is processed in a factory in three sections, the weight of each section is controlled within the hoisting performance of the bridge deck crane, and the end beam is transported to a construction site after the end beam is finished; welding lifting lugs and reserved anchoring holes in a factory in advance on the end cross beam; installing a temporary anchoring hanger system on site;
B. hoisting the left-side end beam segment by using a bridge deck crane, adjusting the position of the left-side end beam segment, anchoring the left-side end beam segment on a left-side hanger system, and releasing a hook of the bridge deck crane; constructing the side high-strength bolt to enable the left side end cross beam segment and the left longitudinal beam to be connected into a whole;
C. lifting the right side end cross beam segment by using a bridge deck crane, anchoring the right side end cross beam segment to a right side hanger system after adjusting the position of the right side end cross beam segment, and releasing a hook of the bridge deck crane; constructing the side high-strength bolt to enable the right side end cross beam segment and the right longitudinal beam to be connected into a whole;
D. hoisting the middle end beam segment by using a bridge deck crane to enable the middle end beam segment to be butted with the left side end beam segment and the right side end beam segment, and welding the three segments into a whole after the line type is adjusted; and (5) detecting and coating the welding line, and erecting the end beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010714617.5A CN111877169A (en) | 2020-07-23 | 2020-07-23 | Construction method for erecting land heavy end cross beam without support and large crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010714617.5A CN111877169A (en) | 2020-07-23 | 2020-07-23 | Construction method for erecting land heavy end cross beam without support and large crane |
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|---|---|
| CN111877169A true CN111877169A (en) | 2020-11-03 |
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| CN202010714617.5A Pending CN111877169A (en) | 2020-07-23 | 2020-07-23 | Construction method for erecting land heavy end cross beam without support and large crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717958A (en) * | 2022-04-09 | 2022-07-08 | 中铁上海工程局集团第五工程有限公司 | Method for installing large specially-made Bailey beam |
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| JPH05106210A (en) * | 1991-10-16 | 1993-04-27 | P S Co Ltd | Erecting method for concrete skew bridge |
| CN102505639A (en) * | 2011-11-23 | 2012-06-20 | 中铁大桥局集团第二工程有限公司 | Method for constructing 0 and 1 sections of beam body of cable-stayed bridge with no bracket |
| CN103835238A (en) * | 2014-02-21 | 2014-06-04 | 中铁大桥局股份有限公司 | High-pier cable-stayed bridge zero-number block non-bracket construction method and structure in construction process |
| CN105088970A (en) * | 2015-09-09 | 2015-11-25 | 上海城建市政工程（集团）有限公司 | Construction method of corrugated steel web PC box girder cable-stayed bridge |
| CN205329551U (en) * | 2015-12-15 | 2016-06-22 | 中交一公局第三工程有限公司 | Support arrangement for construction of cable support tower crossbeam |
| CN108149560A (en) * | 2017-12-25 | 2018-06-12 | 中交路桥华南工程有限公司 | Overlap girder segment and its on-site consolidation method |
| CN108221634A (en) * | 2018-03-16 | 2018-06-29 | 中交高新科技产业发展有限公司 | The Wavelike steel webplate I-shaped composite beam bridge of maximum assembling |
| CN109972517A (en) * | 2017-12-27 | 2019-07-05 | 中交第二航务工程局有限公司 | A kind of construction method of steel reinforced concrete bondbeam cable-stayed bridge main-beam |
| CN110965475A (en) * | 2019-12-13 | 2020-04-07 | 中铁大桥局第七工程有限公司 | Installation method of steel frame beam segment with main cross beam in span and steel frame beam |
-
2020
- 2020-07-23 CN CN202010714617.5A patent/CN111877169A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05106210A (en) * | 1991-10-16 | 1993-04-27 | P S Co Ltd | Erecting method for concrete skew bridge |
| CN102505639A (en) * | 2011-11-23 | 2012-06-20 | 中铁大桥局集团第二工程有限公司 | Method for constructing 0 and 1 sections of beam body of cable-stayed bridge with no bracket |
| CN103835238A (en) * | 2014-02-21 | 2014-06-04 | 中铁大桥局股份有限公司 | High-pier cable-stayed bridge zero-number block non-bracket construction method and structure in construction process |
| CN105088970A (en) * | 2015-09-09 | 2015-11-25 | 上海城建市政工程（集团）有限公司 | Construction method of corrugated steel web PC box girder cable-stayed bridge |
| CN205329551U (en) * | 2015-12-15 | 2016-06-22 | 中交一公局第三工程有限公司 | Support arrangement for construction of cable support tower crossbeam |
| CN108149560A (en) * | 2017-12-25 | 2018-06-12 | 中交路桥华南工程有限公司 | Overlap girder segment and its on-site consolidation method |
| CN109972517A (en) * | 2017-12-27 | 2019-07-05 | 中交第二航务工程局有限公司 | A kind of construction method of steel reinforced concrete bondbeam cable-stayed bridge main-beam |
| CN108221634A (en) * | 2018-03-16 | 2018-06-29 | 中交高新科技产业发展有限公司 | The Wavelike steel webplate I-shaped composite beam bridge of maximum assembling |
| CN110965475A (en) * | 2019-12-13 | 2020-04-07 | 中铁大桥局第七工程有限公司 | Installation method of steel frame beam segment with main cross beam in span and steel frame beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717958A (en) * | 2022-04-09 | 2022-07-08 | 中铁上海工程局集团第五工程有限公司 | Method for installing large specially-made Bailey beam |
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