CN117166376B - Lightweight construction method for side span cast-in-situ frame body of high mountain gorge Gu Ou continuous beam - Google Patents
Lightweight construction method for side span cast-in-situ frame body of high mountain gorge Gu Ou continuous beam Download PDFInfo
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- CN117166376B CN117166376B CN202311447138.1A CN202311447138A CN117166376B CN 117166376 B CN117166376 B CN 117166376B CN 202311447138 A CN202311447138 A CN 202311447138A CN 117166376 B CN117166376 B CN 117166376B
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- 238000010276 construction Methods 0.000 title claims abstract description 75
- 238000011065 in-situ storage Methods 0.000 title claims description 21
- 239000004576 sand Substances 0.000 claims abstract description 80
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 239000004567 concrete Substances 0.000 claims description 17
- 238000005266 casting Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000012669 compression test Methods 0.000 claims description 2
- 238000009415 formwork Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000004540 pour-on Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The application discloses mountain canyon district continuous beam side span cast-in-place support body lightweight construction method relates to the technical field of bridge construction, including abutment and the bridge section of having pour formation, install the basket of hanging on the bridge section, include following construction steps: s1: a plurality of sand frame bottom molds are arranged above the bridge abutment, sand filled in the sand frame bottom molds can be discharged, and the height of the discharged sand frame bottom molds is reduced; s2: a supporting system is paved between the bridge abutment and the hanging basket, and two ends of the supporting system are respectively overlapped above the hanging basket and the sand frame bottom die; s3: building a template on a support system, and pouring a formed side span section; s4: lowering the support system, removing the template and withdrawing the support system. The application provides a bridge side span formwork pouring construction method applied to a Gao Shanxia valley area.
Description
Technical Field
The application relates to the technical field of bridge construction, in particular to a lightweight construction method for a side span cast-in-situ frame body of a high mountain gorge Gu Ou continuous beam.
Background
The prestressed concrete continuous beam bridge is widely applied to bridge construction of mountainous areas, canyons and other terrains. In order to stabilize internal stress of the bridge, the side spans at two ends of the bridge are generally constructed by adopting a cast-in-situ method, the side spans extend from the poured part, and the free ends of the side spans are fixed on the bridge pier. Because the side span cast-in-situ section is large in section, an independent supporting system is required to be erected, a temporary full framing and a steel pipe support are erected from the ground by the traditional construction process to serve as a construction platform, but in a canyon area, because the distance from the bottom of the canyon to the side span construction area is not constant, and the canyon area is uneven, the safety and stability problems of a construction scheme of erecting a supporting frame from the ground are difficult to ensure, and the erection cost is also greatly improved.
The prior art is provided with the triangular bracket fixedly arranged on the side wall of the top of the pier, so that the triangular bracket is erected as a template, on the one hand, the construction danger coefficient of the triangular bracket is high when the triangular bracket is fixed on the side wall of the pier, on the other hand, the triangular bracket is fixed, a steel member for fixing the triangular bracket is required to be pre-buried in the pier when the pier is poured, the position of the triangular bracket is easy to deviate from the pre-buried position of the steel member in the later stage, the triangular bracket is difficult to fix, and the actual construction operation is not easy to realize.
Disclosure of Invention
In order to solve the problem that when the bridge side span cast-in-situ construction is carried out in the mountain canyon area, the template is difficult to erect, the application provides a lightweight construction method for the side span cast-in-situ frame body of the continuous beam in the mountain canyon area.
The application provides a lightweight construction method for a continuous beam side span cast-in-situ frame body in a mountain canyon region, which adopts the following technical scheme:
the lightweight construction method of the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam comprises a bridge abutment and a poured bridge section, wherein a hanging basket is arranged on the bridge section, and the lightweight construction method comprises the following construction steps:
s1: arranging a plurality of sand frame bottom molds above the bridge abutment, wherein sand filled in the sand frame bottom molds can be discharged, and the height of the sand frame bottom molds is reduced after the sand filled sand is discharged;
s2: a supporting system is paved between the bridge abutment and the hanging basket, and two ends of the supporting system are respectively lapped above the hanging basket and the sand frame bottom die;
s3: building a template on a support system, and pouring a formed side span section;
s4: lowering the support system, removing the template and withdrawing the support system.
By adopting the technical scheme, the construction method for casting the side span section in situ is lighter, compared with the traditional formwork support platform erection, the construction method provided by the application only needs to place a sand frame bottom die on an abutment, borrow the existing basket hanging structure, and lay a support system between the sand frame bottom die and the existing basket hanging structure, so that the construction of the side span section formwork erection platform can be realized;
in addition, the construction method overcomes the problem that the support system is difficult to disassemble after the pouring of the side span is completed, two ends of the support system are respectively lapped on the sand frame bottom die and the hanging basket, so that the support system can descend, the height of the support system is reduced after the pouring of the side span is completed, the support system can be pulled out from the bottom of the side span, the construction method is convenient and quick, components are not damaged in the construction process, all the components can be repeatedly recycled, and the construction method has better economic benefit.
Optionally, the sand frame bottom die comprises an upper cylinder and a lower cylinder, wherein the outer diameter of the upper cylinder is smaller than the inner diameter of the lower cylinder;
the upper cylinder is reversely buckled in the lower cylinder, and the side wall of the lower cylinder is provided with a sand discharging hole capable of being opened and closed.
By adopting the technical scheme, sand is filled in the lower cylinder, the upper cylinder is reversely buckled in the lower cylinder, and the sand frame bottom die can stably support the support system through the support of the sand filling; when the height of the supporting system needs to be lowered, the sand discharging holes are opened, sand filled in the sand frame bottom die is discharged, and the upper cylinder moves downwards at the moment, namely, the height of the sand frame bottom die is lowered, so that the supporting system is lowered, and the supporting system can be pulled out from between the side span section and the bridge abutment.
Optionally, the hanging basket comprises a bottom front cross beam, and the height of the bottom front cross beam can be adjusted;
the support system comprises a plurality of longitudinal beams paved at intervals and a cross beam paved above the longitudinal beams, the cross beams are perpendicular to the longitudinal beams and are respectively overlapped above a bottom front cross beam and a sand frame bottom die, and the templates are built above the plurality of cross beams.
By adopting the technical scheme, the two ends of the longitudinal beam are respectively lapped on the bottom front cross beam and the sand frame bottom die, and the height of the supporting system can be adjusted only by adjusting the heights of the bottom front cross beam and the sand frame bottom die;
the side span section that many longerons overlap joint were pour on end front cross beam and abutment, can stable support top, lay the crossbeam and can set up for side span section template and provide the working face.
Optionally, a plurality of vertical suspenders are pinned on the bottom front cross beam, and a jack for adjusting the elevation of the bottom front cross beam is arranged on the suspenders.
By adopting the technical scheme, the plurality of suspenders can stably connect the whole system of the bottom front cross beam and the hanging basket, so that the bottom front cross beam can bear the pressure transferred by the supporting system and the side span; the jack can be used for adjusting the height of the bottom front cross beam.
Optionally, in the step S4, the side mold of the side span is removed first, and then the sand filling in the bottom mold of the sand frame is removed sequentially according to the sequence of the bottom mold of the side span, the cross beam and the longitudinal beam.
Through adopting above-mentioned technical scheme, after the side span pouring is accomplished, when carrying out side span die block, side form and support system and demolish, demolish according to above-mentioned order can be safer, swift.
Optionally, in step S2, a height adjustment and pre-compression test are performed on the bottom front beam before laying the support system.
By adopting the technical scheme, the pre-pressing test is carried out before the support system is paved, so that the inelastic deformation of the bottom front cross beam is reduced, and the support system is tightly attached to the bottom front cross beam in the whole construction process; the height of the bottom front cross beam is adjusted, so that the top elevation of the bottom front cross beam and the top elevation of the sand frame bottom die are at the same horizontal height, and the laying levelness of the supporting system is improved.
Optionally, when the bridge abutment before the step S1 is poured, embedding a bridge support in the bridge abutment;
in the step S3, when pouring the side span, the embedded part arranged at the top of the bridge support is poured into the side span.
Through adopting above-mentioned technical scheme, bridge support is used for connecting side span section and abutment, when pouring side span section, is pour the built-in fitting in side span section for bridge support and abutment, side span section joint strength are better.
Optionally, when pouring the side span concrete in the step S3, pouring side span bottom plate concrete first, then symmetrically pouring side span web concrete in a layered manner, and finally pouring side span top plate concrete;
the roof casting follows the sequence of casting from both sides to the center.
By adopting the technical scheme, when the side span section concrete is poured, the side span section concrete is poured from bottom to top, and when the web plate pouring is performed, the situation that two sides are asymmetric when the concrete is poured is reduced; when the top plate is poured, pouring is conducted from two sides to the middle, so that the top plate concrete is combined with the web plate concrete first, and the top plate and the web plate are combined better.
Optionally, when the template is built in the step S3, side templates on two sides of the side span are synchronously and symmetrically built.
Through adopting above-mentioned technical scheme, because the crossbeam is set up perpendicularly on the longeron, the template of setting up limit span both sides symmetrically for support when setting up limit span template, the application of force that can be more balanced in the crossbeam reduces the unbalanced atress of crossbeam both sides, takes place the condition of turning on one's side and takes place.
Optionally, in the step S3, when binding the steel bars in the side span section, firstly binding the steel bars at the bottom layer of the bottom plate, then binding the web stirrups with the steel bars at the bottom layer of the bottom plate in a scattered manner, installing web horizontal bars and web connecting bars, and welding the bottoms of the web stirrups with the steel bars at the bottom layer of the bottom plate after the web steel bars form an integral framework; binding the top layer steel bars of the bottom plate, firmly welding the connecting bars of the upper layer steel bars and the lower layer steel bars of the bottom plate, and finally installing the top plate steel bars.
Through adopting above-mentioned technical scheme, bottom plate reinforcing bar layering ligature to after bottom plate bottom reinforcing bar ligature is accomplished, the ligature web reinforcing bar, ligature bottom plate top layer reinforcing bar again, according to the convenient construction of above-mentioned order on the one hand, on the other hand makes the reinforcing bar in bottom plate, web and the roof can connect more firmly, can form more firm whole.
In summary, the present application includes at least one of the following beneficial effects:
1. the application provides a construction method of a lightweight side span beam construction platform, which is more convenient and quicker to install and dismantle a support system and is not influenced by terrain factors, and the construction difficulty is low compared with the traditional construction method;
2. after the construction method is finished, the supporting system and the sand frame bottom film are not damaged, and can be recovered and reused for many times, so that the construction economic benefit is better;
3. the sand frame bottom die is arranged to serve as a support of the longitudinal beam on the bridge abutment side, and firstly, the sand frame bottom die can bear a large weight above the sand frame bottom die, meanwhile, the sand discharge is convenient, the height of the sand frame bottom die is reduced, the requirements in the construction process of the application can be met, and the sand frame bottom die is simple in structure and convenient to operate;
4. the one end of longeron utilizes current basket equipment to support, can the current equipment in rational utilization scene, and hangs the basket and can provide stable support for supporting system and side span section for this application construction method construction convenience just can provide stable working face for side span section construction.
Drawings
Fig. 1 is a schematic view of a construction effect after a stringer is laid in an embodiment of the present application;
FIG. 2 is a schematic diagram of an exploded construction of a sand frame bottom mold according to an embodiment of the present application;
FIG. 3 is a schematic view of the construction effect after laying the cross beam according to the embodiment of the present application;
fig. 4 is a schematic view of the construction effect of setting up a formwork on a support system according to the embodiment of the present application.
Reference numerals illustrate: 1. a bridge abutment; 2. a bridge section; 21. hanging basket; 211. a bottom front cross member; 212. a boom; 213. a jack; 3. a region to be constructed; 4. a sand frame bottom die; 41. a cylinder is arranged; 42. a lower cylinder; 421. a sand discharge hole; 43. an expansion plate; 5. a longitudinal beam; 6. a cross beam; 7. bridge supports.
Description of the embodiments
The present application is described in further detail below in conjunction with figures 1-4.
According to the lightweight construction method for the side span cast-in-place frame body of the continuous beam in the mountain canyon area, disclosed by the embodiment of the application, referring to fig. 1, the lightweight construction method comprises the steps of constructing a bridge abutment 1 and constructing a bridge section 2, wherein the side span section of a cast-in-place bridge on the bridge abutment 1 is connected with the bridge section 2 which is constructed completely. Specifically, the space between the end of the bridge section 2 and the bridge abutment 1 is the area 3 to be constructed, the side span spans the area 3 to be constructed, one end of the side span spans the area 3 to be constructed, the side span spans are connected with the bridge section 2, and the other end of the side span spans the area to be constructed are supported on the bridge abutment 1.
The lightweight construction method of the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam comprises the following construction steps, referring to fig. 1 and 2, firstly, a plurality of sand frame bottom molds 4 are placed on the surface of an abutment 1, each sand frame bottom mold 4 comprises an upper cylinder 41 and a lower cylinder 42, the upper cylinder 41 and the lower cylinder 42 have the same structural form, and the outer diameter of the upper cylinder 41 is smaller than the inner diameter of the lower cylinder 42. When the sand frame bottom die 4 is used, sand is filled into the lower cylinder 42 and compacted, the upper cylinder 41 is reversely buckled in the lower cylinder 42, the upper cylinder 41 is pressed until the bottom wall of the upper cylinder 41 is pressed with the sand, and at the moment, the sand frame bottom die 4 is arranged. The side wall of the lower cylinder 42 is provided with a sand discharge hole 421 near the bottom plate, and the sand discharge hole 421 can be plugged by a wood plug or a screw cap, and meanwhile, sand in the sand frame bottom die 4 can be discharged.
Referring to fig. 1, a hanging basket 21 is installed on a bridge segment 2, and the hanging basket 21 is a prior art in bridge construction, and is widely applied to bridge construction, and will not be described in detail herein. The hanging basket 21 comprises a bottom front beam 211, the bottom front beam 211 is positioned below a bottom plate, a plurality of vertical hanging rods 212 are connected to the bottom front beam 211 in a pin joint mode, the hanging rods 212 are fixed with the part, above the top plate of the bridge section 2, of the hanging basket 21, and the bearing capacity of the bottom front beam 211 can be enhanced through the hanging rods 212. The top end of each boom 212 is provided with a jack 213, and the height of the bottom front beam 211 can be adjusted by the jack 213.
Referring to fig. 1, before the subsequent construction step is performed, the bottom front beam 211 is pre-pressed, a load is applied to the bottom front beam 211, each level of load is repeatedly loaded and unloaded, the deformation value of the bottom front beam 211 under each level of load is measured, the deformation rebound value is measured after unloading, after the pre-pressing is completed, the data are arranged, the load and deformation curve are drawn, and the data are used as the basis for adjusting the elevation of the bottom front beam 211 during construction. The height of the sand frame bottom die 4 can be adjusted by adjusting the sand filling amount in the sand frame bottom die 4, the top surface of the bottom front cross beam 211 and the top surfaces of the sand frame bottom dies 4 are positioned on the same horizontal height through adjustment, and the load deformation amount of the bottom front cross beam 211 needs to be considered according to the deformation curve when the elevation of the bottom front cross beam 211 is adjusted.
Referring to fig. 1 and 2, after the adjustment of the sand frame bottom die 4 and the bottom front beam 211 is completed, a supporting system is laid in the to-be-constructed area 3, specifically, the supporting system comprises a plurality of longitudinal beams 5, two ends of each longitudinal beam 5 are respectively overlapped above the sand frame bottom die 4 and the bottom front beam 211, a plurality of longitudinal beams 5 are arranged at intervals in parallel, and the intervals between the adjacent longitudinal beams 5 are determined according to structural design. To improve the stability of the sand frame bottom mold 4 supporting the stringers 5, the bottom walls of the upper and lower drums 41, 42 are uniformly formed with square expansion plates 43.
Referring to fig. 3, after the longitudinal beam 5 is laid, if the construction working surface of the side span can be satisfied, the side span template is erected on the longitudinal beam 5; after the longitudinal beams 5 are paved, the construction operation surface of the side span cannot be met, and then the transverse beams 6 can be continuously paved on the longitudinal beams 5, and the transverse beams 6 are paved perpendicular to the length direction of the longitudinal beams 5. The support system provides an operation surface for the construction of the upper cast-in-situ side span, and the support system has simple and quick construction process and low construction difficulty.
Referring to fig. 4, after the support system is laid, a pouring formwork of the side span section and a frame body for supporting the formwork are erected on the support system. If the cross beam 6 is paved, when the side dies of webs at two sides of the side span are erected, two ends of the side dies are required to be symmetrically erected, so that unbalanced stress at two ends of the cross beam 6 is reduced, side turning of the cross beam 6 occurs, and construction safety is improved.
Referring to fig. 4, when pouring the bridge abutment 1, a bridge support 7 is usually embedded in the bridge abutment 1, the bridge support 7 is used for connecting the bridge abutment 1 and the side span, and an embedded part for being embedded in the side span is also arranged at the top end of the bridge support 7. When the bottom die of the side span is erected, the embedded part at the top end of the bridge support 7 needs to pass through the bottom die and be positioned in the area to be poured of the side span.
After the template is erected, carrying out steel bar binding of the side span section, and binding the steel bars according to the following sequence: binding bottom layer steel bars of the bottom plate of the side span section, then binding web stirrups with the bottom layer steel bars of the bottom plate in a scattered manner, installing web horizontal bars and web connecting bars, and welding the bottom of the web stirrups with the bottom layer steel bars of the bottom plate after the web steel bars form an integral framework; binding the top layer steel bars of the bottom plate, firmly welding the connecting bars of the upper layer steel bars and the lower layer steel bars of the bottom plate, and finally installing binding the top plate steel bars.
After the binding of the reinforcing steel bars is completed, concrete pouring of the side span is carried out, during pouring, concrete of bottom plates of the side span is poured first, then concrete of webs at two sides of the side span is poured in a symmetrical layered mode, finally concrete pouring of a top plate is carried out, and the top plate is poured from two sides to the center during pouring.
Referring to fig. 4, after the side span is cast into shape, the form and support system are removed. Firstly, the side forms of the side spans and the frame body for supporting the side forms are all dismantled, then the elevation of the bottom front cross beam 211 is lowered by using the jack 213, meanwhile, sand filled in the sand frame bottom die 4 is discharged through the sand discharge hole 421, so that the height of the sand frame bottom die 4 is lowered, at the moment, the bottom dies of the side spans and the supporting system are not abutted, constructors can dismantle and withdraw the bottom dies of the side spans in sequence, then the cross beam 6 and the longitudinal beam 5 are withdrawn from the bottoms of the side spans in sequence, and finally the sand frame bottom die 4 is removed until the construction of the side spans is completed.
The implementation principle of the lightweight construction method for the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam is as follows: utilize hanging basket 21 and place the sand frame die block 4 on abutment 1 and support longeron 5, provide the construction operation face for the straddling construction through spaning longeron 5 of waiting construction area 3, compare in traditional from the ground upwards set up the floor support frame, perhaps at abutment 1 lateral wall fixed triangular support frame, this application construction method is more convenient, simple, and the construction degree of difficulty is low, and is applicable to the straddling construction in high gorge valley region.
In addition, the heights of the sand frame bottom die 4 and the bottom front cross beam 211 can be lowered, after the side span casting is completed, sand filling of the sand frame bottom die 4 can be discharged, and the elevation of the bottom front cross beam 211 can be adjusted by the jack 213, so that the elevation of two ends of the longitudinal beam 5 can be adjusted, a space exists between a supporting system and the bottom wall of the side span, and further the dismantling of the supporting system, the bottom die and the sand frame bottom die 4 can be realized, all components are not damaged, the sand frame bottom die can be used for many times in a turnover mode, and the dismantling is convenient and quick, and has small potential safety hazards.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. A lightweight construction method for a side span cast-in-situ frame body of a high mountain gorge Gu Ou continuous beam is characterized by comprising the following steps: the bridge comprises a bridge abutment (1) and a poured bridge section (2), wherein a hanging basket (21) is arranged on the bridge section (2), and the bridge comprises the following construction steps:
s1: a plurality of sand frame bottom molds (4) are arranged above the bridge abutment (1), sand filled in the sand frame bottom molds (4) can be discharged, and the height of the sand frame bottom molds (4) is reduced after the sand filled sand is discharged;
s2: a supporting system is paved between the bridge abutment (1) and the hanging basket (21), and two ends of the supporting system are respectively overlapped above the hanging basket (21) and the sand frame bottom die (4);
s3: building a template on a support system, and pouring a formed side span section;
s4: lowering the support system, removing the template and extracting the support system;
the sand frame bottom die (4) comprises an upper cylinder (41) and a lower cylinder (42), and the outer diameter of the upper cylinder (41) is smaller than the inner diameter of the lower cylinder (42);
the upper cylinder (41) is reversely buckled in the lower cylinder (42), and a sand discharging hole (421) capable of being opened and closed is formed in the side wall of the lower cylinder (42);
the hanging basket (21) comprises a bottom front cross beam (211), and the height of the bottom front cross beam (211) can be adjusted;
the bottom front beam (211) is connected with a plurality of vertical suspenders (212) in a pin joint mode, and a jack (213) for adjusting the elevation of the bottom front beam (211) is arranged on each suspender (212).
2. The lightweight construction method for the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam, which is characterized by comprising the following steps of: the support system comprises a plurality of longitudinal beams (5) paved at intervals and a cross beam (6) paved above the longitudinal beams (5), the cross beam (6) is perpendicular to the longitudinal beams (5) to be placed, two ends of the longitudinal beams (5) are respectively lapped above a bottom front cross beam (211) and a sand frame bottom die (4), and the template is built above the plurality of cross beams (6).
3. The lightweight construction method for the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam, which is characterized by comprising the following steps of: in the step S4, firstly removing the side mold of the side span, and then removing the sand filled in the sand frame bottom mold (4) according to the sequence of the side span bottom mold, the cross beam (6) and the longitudinal beam (5).
4. The lightweight construction method for the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam, which is characterized by comprising the following steps of: in step S2, the bottom front beam (211) is subjected to height adjustment and pre-compression test before laying the support system.
5. The lightweight construction method for the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam, which is characterized by comprising the following steps of: when pouring the bridge abutment (1) before the step S1, embedding a bridge support (7) in the bridge abutment (1);
in the step S3, when pouring the side span, the embedded part arranged at the top of the bridge support (7) is poured in the side span.
6. The lightweight construction method for the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam, which is characterized by comprising the following steps of: when the side span concrete is poured in the step S3, firstly pouring side span bottom plate concrete, then symmetrically and hierarchically pouring side span web concrete, and finally pouring side span top plate concrete;
the roof casting follows the sequence of casting from both sides to the center.
7. The lightweight construction method for the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam, which is characterized by comprising the following steps of: and (3) synchronously and symmetrically erecting side dies at two sides of the side span when the template is built in the step S3.
8. The lightweight construction method for the side span cast-in-situ frame body of the high mountain gorge Gu Ou continuous beam, which is characterized by comprising the following steps of: in the S3 step, when binding the steel bars in the side span section, firstly binding the steel bars at the bottom layer of the bottom plate, then binding the web stirrups with the steel bars at the bottom layer of the bottom plate in a scattered manner, installing web horizontal bars and web connecting bars, and welding the bottoms of the web stirrups with the steel bars at the bottom layer of the bottom plate after the web steel bars form an integral framework; binding the top layer steel bars of the bottom plate, firmly welding the connecting bars of the upper layer steel bars and the lower layer steel bars of the bottom plate, and finally installing the top plate steel bars.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005171638A (en) * | 2003-12-11 | 2005-06-30 | Oriental Construction Co Ltd | Displacement adjusting method in overhanging installing construction method for concrete girder |
| JP2009235687A (en) * | 2008-03-26 | 2009-10-15 | Ps Mitsubishi Construction Co Ltd | Form supporting device for constructing pc (prestressed concrete) bridge overhang |
| CN101906879A (en) * | 2010-07-08 | 2010-12-08 | 中建钢构有限公司 | Sand box device and method for unloading steel structure bracket |
| CN102493362A (en) * | 2011-11-24 | 2012-06-13 | 中铁二十三局集团有限公司 | Construction method for midspan closure segment of longspan continuous rigid frame bridge |
| CN103556578A (en) * | 2013-10-14 | 2014-02-05 | 中铁十九局集团有限公司 | Straight-line section and side span closure section casting mold system for continuous beam and erection method for casting mold system |
| CN109944170A (en) * | 2019-05-06 | 2019-06-28 | 重庆建工市政交通工程有限责任公司 | Continuous beam with high-pier end bay Cast-in-Situ Segment and closure section integrated construction system and construction method |
| CN112195792A (en) * | 2020-10-26 | 2021-01-08 | 广东省水利水电第三工程局有限公司 | Sand box device for cast-in-place beam construction and cast-in-place beam construction method |
| CN113512944A (en) * | 2021-04-13 | 2021-10-19 | 中交二公局东萌工程有限公司 | Rigid frame bridge side span construction method using bracket and hanging basket |
| CN115637657A (en) * | 2022-09-30 | 2023-01-24 | 中国建筑第七工程局有限公司 | Construction method for side-span cast-in-place section and side-span closure section of suspension casting continuous beam by using hanging basket construction |
-
2023
- 2023-11-02 CN CN202311447138.1A patent/CN117166376B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005171638A (en) * | 2003-12-11 | 2005-06-30 | Oriental Construction Co Ltd | Displacement adjusting method in overhanging installing construction method for concrete girder |
| JP2009235687A (en) * | 2008-03-26 | 2009-10-15 | Ps Mitsubishi Construction Co Ltd | Form supporting device for constructing pc (prestressed concrete) bridge overhang |
| CN101906879A (en) * | 2010-07-08 | 2010-12-08 | 中建钢构有限公司 | Sand box device and method for unloading steel structure bracket |
| CN102493362A (en) * | 2011-11-24 | 2012-06-13 | 中铁二十三局集团有限公司 | Construction method for midspan closure segment of longspan continuous rigid frame bridge |
| CN103556578A (en) * | 2013-10-14 | 2014-02-05 | 中铁十九局集团有限公司 | Straight-line section and side span closure section casting mold system for continuous beam and erection method for casting mold system |
| CN109944170A (en) * | 2019-05-06 | 2019-06-28 | 重庆建工市政交通工程有限责任公司 | Continuous beam with high-pier end bay Cast-in-Situ Segment and closure section integrated construction system and construction method |
| CN112195792A (en) * | 2020-10-26 | 2021-01-08 | 广东省水利水电第三工程局有限公司 | Sand box device for cast-in-place beam construction and cast-in-place beam construction method |
| CN113512944A (en) * | 2021-04-13 | 2021-10-19 | 中交二公局东萌工程有限公司 | Rigid frame bridge side span construction method using bracket and hanging basket |
| CN115637657A (en) * | 2022-09-30 | 2023-01-24 | 中国建筑第七工程局有限公司 | Construction method for side-span cast-in-place section and side-span closure section of suspension casting continuous beam by using hanging basket construction |
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