CN111501570A - Automatic adjusting and supporting die frame for small-span arch bridge - Google Patents
Automatic adjusting and supporting die frame for small-span arch bridge Download PDFInfo
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- CN111501570A CN111501570A CN202010380219.4A CN202010380219A CN111501570A CN 111501570 A CN111501570 A CN 111501570A CN 202010380219 A CN202010380219 A CN 202010380219A CN 111501570 A CN111501570 A CN 111501570A
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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
- E01D4/00—Arch-type bridges
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Abstract
An automatic adjusting and supporting formwork for a small-span arch bridge. The full framing method is a common construction method in bridge and culvert engineering, and the conventional full framing construction arch bridge arch ring has the problems of multiple turnover times, long turnover time and great waste of manpower, materials and time. The utility model provides an automatic support die carrier of adjusting of small-span arch bridge which constitutes and includes: the hydraulic support device comprises trolley gantries (1) and an upper mould frame (2), wherein a bottom cross beam (3), a middle cross beam (4) and a top cross beam (5) are perpendicularly welded between the trolley gantries, the upper mould frame is installed above the top cross beam, a hydraulic support device (6) is welded on the bottom cross beam through a flange plate, the hydraulic support device controls the hydraulic support device to vertically adjust the upper mould frame through a hydraulic pipe and a hydraulic control console (7), a group of walking wheels (8) are connected onto a cross beam below the trolley gantries, and a gantry support beam (9) is welded between the upper cross beam and the lower cross beam of the trolley gantries. The invention is applied to the field of bridge and culvert construction.
Description
Technical Field
The invention relates to an automatic adjusting support die frame for a small-span arch bridge.
Background
With the rapid development of railway and highway traffic infrastructure construction, the full framing method is a common construction method in bridge and culvert engineering, generally adopts a construction method of scaffolds which are densely arranged at certain intervals and play a supporting role, and a large number of template supports are needed during construction. And pouring bridge body concrete on the support, and removing the template and the support after the concrete reaches the strength. The support method has the greatest advantages that large hoisting equipment is not needed, and the support template for construction has large consumption and long construction period. The conventional arch bridge arch ring constructed by the full framing has the problems of multiple turnover times, long turnover time and large waste of manpower, materials and time. The invention mainly solves the problem of long construction period of the conventional construction method, greatly saves the use amount of the template, saves the manual work and improves the appearance quality of the arch ring.
Disclosure of Invention
The invention aims to provide an automatic adjusting and supporting formwork for a small-span arch bridge.
The above purpose is realized by the following technical scheme:
the utility model provides an automatic support die carrier of adjusting of small-span arch bridge which constitutes and includes: platform truck portal and last die holder, the platform truck portal between the vertical welding have bottom crossbeam, middle part crossbeam and top crossbeam, last die holder install the top crossbeam the bottom crossbeam on weld through the ring flange and have hydraulic support equipment, hydraulic support equipment utilize hydraulic pressure pipe and hydraulic control platform control hydraulic support equipment to adjust from top to bottom the last die holder, the below crossbeam of platform truck portal on be connected with a set of walking wheel, two upper and lower crossbeams of platform truck portal between the welding have a portal supporting beam, and portal supporting beam on install the spacing wheel of side direction, the middle part crossbeam with the top crossbeam between install and draw a supporting beam to one side, draw the one end that supports to one side with the vertical beam welded fastening of platform truck portal, the other end with bottom crossbeam welded fastening.
The automatic die carrier of strutting of adjusting of little stride footpath arched bridge, last die carrier constitute by left circular arc template, right circular arc template, template supporting component and template hydraulic equipment, the hookup location department of left circular arc template and right circular arc template rotate through articulated and be connected, template supporting component respectively with the inboard cambered surface of left circular arc template and carry out welded fastening between the inboard cambered surface of right circular arc template, template supporting component on the left circular arc template and the template supporting component on the right circular arc template between connect through template hydraulic equipment, template hydraulic equipment utilize hydraulic pressure pipe and upper portion hydraulic control platform control upper portion hydraulic pressure to carry out opening and closure of going up the die carrier template.
The automatic adjustment of little span arched bridge strut die carrier, left circular arc template with the inboard arch ring of right circular arc template in install the attached vibrator, pass through bolt fixed connection between two adjacent last die carriers template strut subassembly on the welding have the spacing bolt of template.
The automatic adjustment support die carrier of small-span arch bridge, the bottom crossbeam on install hydraulic control platform, upper portion hydraulic control platform and air switch, just hydraulic control platform pass through the hydraulic pressure pipe and be connected with hydraulic support equipment, upper portion hydraulic control platform pass through the hydraulic pressure pipe and be connected with template hydraulic equipment.
The automatic adjustment of little span arched bridge strut die carrier, left circular arc template with the tip of right circular arc template be connected with the side form through bolt assembly, the side form be connected with the external mold through bolt assembly, the external mold covers left circular arc template with the arcwall face of right circular arc template.
The construction method for automatically adjusting the supporting formwork of the small-span arch bridge comprises the following steps:
(1) firstly, installing portal frames of a trolley of a bottom walking device, then sequentially installing cross beams and inclined supports among the portal frames, installing an electric hydraulic jack device on the bottom cross beam, connecting and fixing the electric hydraulic jack device with a trolley mould frame by using bolts, installing lateral limiting wheels on two sides of the trolley, and flexibly adjusting the positions of the lateral limiting wheels by using the bolts;
(2) placing an upper die carrier on the top of the trolley in place, wherein the die carrier parts are connected by bolts, so that the disassembly is convenient, the construction is accelerated, and the installation is carried out in sequence;
(3) after the hoisting is finished, the crane is hoisted to the channel of the arch bridge platform body, the main beam of the trolley is aligned with the central axis of the arch bridge platform body and longitudinally travels to a designed position, the limiting wheels at two sides are fixed, and the mould frame is sequentially installed at the top of the trolley in place;
(4) the method comprises the following steps of firstly adjusting the height of the lower part by using an electric hydraulic jack, adjusting the opening angle of an upper template after adjusting the adaptive height, carrying out bottom reinforcement treatment after adjusting the corresponding angle, reinforcing the bottom end of a formwork by using a screw jack, ensuring the stress of the bottom end, installing side molds and end templates of the formwork, binding reinforcing steel bars at the positions of an arch ring and an arch support, and then pouring the concrete of the arch support C30;
(5) after initial setting, the arc templates on the two sides of the formwork can be installed, after the installation, the formwork top templates can be sequentially installed in place, and after the installation, the pouring of the arch ring C40 concrete can be started;
(6) after the health maintenance is completed, the top formwork and the end formwork are disassembled in sequence, before the elevation of the trolley is reduced, the top formwork is contracted by using a transverse electric adjusting device, the top formwork is separated from concrete, then the elevation of the trolley can be reduced and the trolley can walk forwards, the second section of the arch support and the second section of the arch ring are poured, the rear part of the formwork is in lap joint (10 centimeters) with the arch ring, the phenomenon that the arch ring is staggered is prevented, then the formwork assembling, the steel bar binding and the concrete pouring work can be sequentially carried out. And after the arch support and the arch ring are poured, sequentially pouring the arch protection and the retaining wall.
The invention has the following beneficial effects:
1. the invention adopts the automatic adjustment supporting die frame of the small-span arch bridge, can save the template bracket, save the labor input, and effectively control the target of the phenomenon of wrong platform of the arch ring, accelerate the construction progress and ensure the engineering quality. The method mainly solves the problem of long construction period of the conventional construction method, greatly saves the use amount of the template, saves manual work, and improves the appearance quality of the arch ring.
2. The invention can automatically adjust the support of the template, can automatically adjust the height of the bracket and the opening angle of the template, greatly saves the electric support precision and speed compared with manual work, simultaneously can ensure the structural size and the appearance quality of the arch ring, shortens the one-day time of the original support template to 2 hours, does not have the process of dismantling the full support, greatly saves the cost and the construction period, and simultaneously saves the number of the templates. The attached vibrator is arranged on the arch ring template, so that the concrete can be uniformly vibrated, and the quality of the concrete is improved.
3. The specific working operation process of the invention comprises three components:
a first part:
the die carrier is formed by splicing two parts, and the lower part of the die carrier is a cuboid die carrier and consists of a bottom cross beam, a middle cross beam, a top cross beam, a support beam and a diagonal support beam in a welding mode. The upper part is an arc template and is internally provided with a support. The bottom of the lower cuboid die carrier is provided with walking wheels which are welded together with a bottom cross beam to provide walking power for the movement of the whole die carrier, the die carrier is integrally moved by an electric winch (the bottom walking wheels are 90-degree phase change wheels, and the die carrier can move transversely), four corners of the bottom of the die carrier are provided with hydraulic supporting equipment which is welded with the bottom cross beam through flange plates, and the die carrier is adjusted up and down by utilizing hydraulic pipes and a hydraulic control console to control the hydraulic equipment. The upper part of the device consists of an arc template and supports, an upper hydraulic device is connected with the supports at two sides, and the upper hydraulic device is controlled by a hydraulic pipe and an upper hydraulic control console to open and close the template. The upper template is directly placed on the lower die carrier without connection, and the position of the upper template is limited by the template limit bolt. The upper template inner film, the outer mold and the side mold are connected by bolts. And the bottom screw jack is directly installed after the template is fixed, so that the whole framework is reinforced.
A second part:
the formwork is researched and developed aiming at the longer erection and dismantling period of the original full framing method, and can be constructed in the whole construction period by one-time assembly and dismantling without dismantling and erecting every time, so that the construction period is greatly shortened, and meanwhile, the manual use is greatly reduced. Compared with the traditional full-framing support, the movable formwork has the main characteristics that the movable formwork is movable, and the movable formwork can be moved to avoid dismantling and assembling, so that the construction period can be shortened.
And a third part:
(1) when the formwork is used, the height of the lower portion is adjusted, the opening angle of the upper formwork is adjusted after the height is adjusted to the adaptive height, bottom reinforcement processing is carried out after the corresponding angle is adjusted, the bottom of the formwork is reinforced by using a screw jack, the bottom stress is guaranteed, finally, the side formwork and the top formwork are installed by using a crane, and concrete pouring is carried out after the installation is finished.
(2) After concrete pouring is finished, formwork removal is carried out after the strength of concrete reaches more than 40%, a crane is used for removing the top formwork and the side formwork, then a screw jack at the bottom of the formwork is withdrawn, a hydraulic bottom jack is lowered by 2-3cm, the lower portion of the formwork is separated from the upper portion of the formwork by 2-3cm, a reserved space is closed for an upper formwork, an upper formwork is contracted to be closed by an upper hydraulic device, the upper formwork is slightly contracted to be separated from the concrete and fall on the lower formwork, and at the moment, the formwork is greatly lowered, and the upper formwork is greatly contracted.
(3) After the die carrier and the die plate are shrunk, the die carrier is integrally pulled by an external winch to move forwards. And after the arch ring with one hole is finished, the die carrier is integrally moved out of the arch hole, and the die carrier is pulled from the side surface to move the side of the die carrier into the corresponding position of the next hole.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the connection of the gantry and the beam of the trolley.
Fig. 3 is a schematic structural view of the gantry of the trolley.
FIG. 4 is a schematic connection diagram of the left arc formwork and the right arc formwork.
Fig. 5 is a schematic view of the installation structure of fig. 1 and the arch bridge platform body.
Fig. 6 is a schematic structural view of the installation of the side mold and the end mold in fig. 5.
Fig. 7 is a schematic structural view of the reinforcing steel bar binding arch ring in fig. 6.
Fig. 8 is a schematic view showing the construction of fig. 7 when the side mold and the outer mold are assembled.
Fig. 9 is a top view of fig. 8.
In the figure: 1. the device comprises a trolley portal, 2 parts of an upper mould frame, 3 parts of a bottom crossbeam, 4 parts of a middle crossbeam, 5 parts of a top crossbeam, 6 parts of hydraulic support equipment, 7 parts of a hydraulic control platform, 8 parts of walking wheels, 9 parts of a portal support beam, 10 parts of lateral limiting wheels, 11 parts of a diagonal support beam, 12 parts of an upper hydraulic control platform, 13 parts of an air switch, 14 parts of a side mould, 15 parts of an outer mould, 16 parts of an arch bridge platform body, 17 parts of a mould frame side mould, 18 parts of an end mould plate, 19 parts of a reinforcement arch ring, 20 parts of a pouring gate, 2-1 parts of a left circular arc mould plate, 2-2 parts of a right circular arc mould plate, 2-3 parts of a mould support component, 2-4 parts of mould.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
the utility model provides an automatic support die carrier of adjusting of small-span arch bridge which constitutes and includes: a bottom beam 3, a middle beam 4 and a top beam 5 are vertically welded between the trolley door frames 1 and the upper mould frame 2, the upper die frame is arranged above the top cross beam, the bottom cross beam is welded with a hydraulic support device 6 through a flange plate, the hydraulic supporting equipment utilizes a hydraulic pipe and a hydraulic control platform 7 to control the hydraulic supporting equipment to adjust the upper die frame up and down, a group of walking wheels 8 are connected on a cross beam below the trolley portal frame, a portal frame supporting beam 9 is welded between the upper cross beam and the lower cross beam of the trolley portal frame, and a lateral limiting wheel 10 is arranged on the gantry supporting beam, a diagonal supporting beam 11 is arranged between the middle cross beam and the top cross beam, one end of the diagonal support is welded and fixed with the vertical beam of the trolley portal frame, and the other end of the diagonal support is welded and fixed with the bottom cross beam.
Example 2:
the automatic adjusting and supporting die frame for the small-span arch bridge in the embodiment 1 is characterized in that the upper die frame is composed of a left arc template 2-1, a right arc template 2-2, a template supporting component 2-3 and a die plate hydraulic device 2-4, the connecting positions of the left arc template and the right arc template are connected in a hinged and rotating mode, the template supporting component is respectively welded and fixed with the inner arc surface of the left arc template and the inner arc surface of the right arc template, the template supporting component on the left arc template is connected with the template supporting component on the right arc template through the die plate hydraulic device, and the die plate hydraulic device controls upper hydraulic pressure to open and close the upper die frame template through a hydraulic pipe and an upper hydraulic control console 12.
Example 3:
according to embodiment 1 or 2, the automatic adjusting and supporting die carrier of the small-span arch bridge is characterized in that the attached vibrators are installed in inner arch rings of the left arc template and the right arc template, two adjacent upper die carriers are fixedly connected through bolts, and the die carrier rod assemblies are provided with die carrier limiting bolts.
Example 4:
according to the automatic adjusting and supporting die frame of the small-span arch bridge in the embodiment 1, 2 or 3, the bottom cross beam is provided with the hydraulic control platform, the upper hydraulic control platform and the air switch 13, the hydraulic control platform is connected with the hydraulic supporting equipment through the hydraulic pipe, and the upper hydraulic control platform is connected with the template hydraulic equipment through the hydraulic pipe.
Example 5:
according to embodiment 1 or 2 or 3 or 4, the automatic adjustment supporting die frame for the small-span arch bridge is characterized in that the end parts of the left arc template and the right arc template are connected with a side die 14 through bolt assemblies, the side die is connected with an outer die 15 through bolt assemblies, and the outer die covers the arc surfaces of the left arc template and the right arc template.
Example 6:
the bottom travelling wheel mainly supports the die carrier to travel, and the wheel is a 90-degree rotatable wheel; the bottom hydraulic support mainly adjusts the height of the die carrier up and down to ensure the support and removal of the die; the bottom hydraulic support control console controls the adjustment of the bottom hydraulic support; the diagonal support beams ensure that the side surfaces and the front surface of the die carrier are supported in a diagonal manner and ensure that the die carrier does not deform; the top template hydraulic control console mainly adjusts the opening and closing of the top template; the supporting equipment (screw jack) plays a role of hard support for the whole die frame, so that the integral stability of the die frame is ensured; the air switch mainly controls the power switch of the whole die set, so that the power utilization safety is ensured; the attached vibrator is used for vibrating an inner film of an arch ring, so that the appearance quality is improved. The template limit bolt is used for limiting the opening and closing angles of the template.
Example 7:
a construction method for automatically adjusting a supporting formwork of a small-span arch bridge according to any one of embodiments 1 to 6, comprising the steps of:
(1) the method comprises the steps of firstly installing the gantry of the trolley of the bottom walking device, then sequentially installing the cross beam and the inclined support between the gantries, installing the electric hydraulic jack device on the bottom cross beam, connecting and fixing the bottom cross beam with the trolley mould frame through bolts, installing lateral limiting wheels on two sides of the trolley, and flexibly adjusting the positions of the lateral limiting wheels through the bolts.
(2) The upper die frame is placed at the top of the trolley in place, the die frame parts are connected through bolts, disassembly is convenient, construction is accelerated, and installation is performed in sequence.
(3) After the hoisting of the crane is finished, the crane is hoisted to the channel of the arch bridge platform body, the main beam of the trolley is aligned with the central axis of the arch bridge platform body and longitudinally travels to the designed position, the limiting wheels at two sides are fixed, and the die frame is sequentially installed at the top of the trolley in place.
(4) The method comprises the steps of firstly adjusting the height of the lower part by using an electric hydraulic jack, adjusting the opening angle of an upper template after adjusting the adaptive height, carrying out bottom reinforcement treatment after adjusting the corresponding angle, reinforcing the bottom end of a formwork by using a screw jack, ensuring the stress of the bottom end, installing a formwork side mold 17 and an end template 18, binding the arch ring by using the steel bars at the position of the arch ring and the arch support, and then pouring the concrete of the arch support C30.
(5) After initial setting, the arc templates on the two sides of the formwork can be installed, after the installation, formwork top templates can be sequentially installed in place, and after the installation, the pouring of the arch ring C40 concrete can be started.
(6) After the health maintenance is completed, the top formwork and the end formwork are disassembled in sequence, before the elevation of the trolley is reduced, the top formwork is contracted by using a transverse electric adjusting device, the top formwork is separated from concrete, then the elevation of the trolley can be reduced and the trolley can walk forwards, the second section of the arch support and the second section of the arch ring are poured, the rear part of the formwork is in lap joint (10 centimeters) with the arch ring, the phenomenon that the arch ring is staggered is prevented, then the formwork assembling, the steel bar binding and the concrete pouring work can be sequentially carried out. And after the arch support and the arch ring are poured, sequentially pouring the arch protection and the retaining wall.
Claims (6)
1. The utility model provides an automatic support die carrier of adjusting of small-span arch bridge which constitutes and includes: platform truck portal and last mold carrier, characterized by:
the platform truck portal between perpendicular welding have bottom crossbeam, middle part crossbeam and top crossbeam, last die carrier install the top crossbeam's top, the bottom crossbeam on have hydraulic pressure support equipment through flange welding, hydraulic pressure support equipment utilize hydraulic pressure pipe and hydraulic control platform control hydraulic pressure support equipment to adjust from top to bottom going on to last die carrier, the below crossbeam of platform truck portal on be connected with a set of walking wheel, two upper and lower crossbeams of platform truck portal between weld and have a portal supporting beam, and portal supporting beam on install the spacing wheel of side direction, the middle part crossbeam with the top crossbeam between install and draw a supporting beam to one side, draw the one end that supports to one side with the platform truck portal erect roof beam welded fastening, the other end with bottom crossbeam welded fastening.
2. The automatic adjusting and supporting formwork for the small-span arch bridge according to claim 1, wherein: the upper die frame comprises a left circular arc template, a right circular arc template, a template supporting component and template hydraulic equipment, the connecting positions of the left circular arc template and the right circular arc template are connected in a rotating mode through hinges, the template supporting component is respectively welded and fixed with the inner side arc surface of the left circular arc template and the inner side arc surface of the right circular arc template, the template supporting component on the left circular arc template and the template supporting component on the right circular arc template are connected through the template hydraulic equipment, and the template hydraulic equipment controls upper hydraulic pressure to open and close the upper die frame template by utilizing a hydraulic pipe and an upper hydraulic control console.
3. The automatic adjusting and supporting formwork for the small-span arch bridge according to claim 2, wherein: the left circular arc template and the right circular arc template are internally provided with an attached vibrator, two adjacent upper die frames are fixedly connected through bolts, and the template support rod assembly is welded with a template limit bolt.
4. The automatic adjusting and supporting formwork for the small-span arch bridge according to claim 3, wherein: the bottom cross beam is provided with a hydraulic control platform, an upper hydraulic control platform and an air switch, the hydraulic control platform is connected with the hydraulic supporting equipment through a hydraulic pipe, and the upper hydraulic control platform is connected with the template hydraulic equipment through a hydraulic pipe.
5. The automatic adjusting and supporting formwork for the small-span arch bridge according to claim 4, wherein: the end parts of the left arc template and the right arc template are connected with side dies through bolt assemblies, the side dies are connected with outer dies through bolt assemblies, and the outer dies cover the arc surfaces of the left arc template and the right arc template.
6. A construction method for automatically adjusting a supporting formwork of a small-span arch bridge according to any one of claims 1 to 5, which is characterized in that: the method comprises the following steps:
(1) firstly, installing portal frames of a trolley of a bottom walking device, then sequentially installing cross beams and inclined supports among the portal frames, installing an electric hydraulic jack device on the bottom cross beam, connecting and fixing the electric hydraulic jack device with a trolley mould frame by using bolts, installing lateral limiting wheels on two sides of the trolley, and flexibly adjusting the positions of the lateral limiting wheels by using the bolts;
(2) placing an upper die carrier on the top of the trolley in place, wherein the die carrier parts are connected by bolts, so that the disassembly is convenient, the construction is accelerated, and the installation is carried out in sequence;
(3) after the hoisting is finished, the crane is hoisted to the channel of the arch bridge platform body, the main beam of the trolley is aligned with the central axis of the arch bridge platform body and longitudinally travels to a designed position, the limiting wheels at two sides are fixed, and the mould frame is sequentially installed at the top of the trolley in place;
(4) the method comprises the following steps of firstly adjusting the height of the lower part by using an electric hydraulic jack, adjusting the opening angle of an upper template after adjusting the adaptive height, carrying out bottom reinforcement treatment after adjusting the corresponding angle, reinforcing the bottom end of a formwork by using a screw jack, ensuring the stress of the bottom end, installing side molds and end templates of the formwork, binding reinforcing steel bars at the positions of an arch ring and an arch support, and then pouring the concrete of the arch support C30;
(5) after initial setting, the arc templates on the two sides of the formwork can be installed, after the installation, the formwork top templates can be sequentially installed in place, and after the installation, the pouring of the arch ring C40 concrete can be started;
(6) after the health maintenance is completed, the top formwork and the end formwork are sequentially disassembled, before the height of the trolley is reduced, the top formwork is contracted by using a transverse electric adjusting device, the top formwork is separated from concrete, then the height of the trolley can be reduced and the trolley can walk forwards, the second sections of the arch support and the arch ring are poured, the rear portion of the formwork is in lap joint (10 centimeters) with the arch ring, the phenomenon that the arch ring is staggered is prevented, then the formwork assembly can be sequentially carried out, the steel bar binding and the concrete pouring work are carried out, after the pouring of the arch support and the arch ring is completed, the arch protection and the wall blocking pouring are sequentially carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010380219.4A CN111501570A (en) | 2020-05-08 | 2020-05-08 | Automatic adjusting and supporting die frame for small-span arch bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010380219.4A CN111501570A (en) | 2020-05-08 | 2020-05-08 | Automatic adjusting and supporting die frame for small-span arch bridge |
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| CN111501570A true CN111501570A (en) | 2020-08-07 |
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| CN202010380219.4A Pending CN111501570A (en) | 2020-05-08 | 2020-05-08 | Automatic adjusting and supporting die frame for small-span arch bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945572A (en) * | 2020-08-18 | 2020-11-17 | 中交二航局第二工程有限公司 | Multi-connected arch bridge erecting machine and multi-connected arch bridge erecting method |
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| CN110593136A (en) * | 2019-10-23 | 2019-12-20 | 中铁七局集团有限公司 | Arch ring walking type formwork trolley of deck arch bridge and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09217321A (en) * | 1996-02-09 | 1997-08-19 | Okabe Co Ltd | Arch concrete work execution method |
| CN201738250U (en) * | 2010-08-21 | 2011-02-09 | 中铁六局集团有限公司 | Arch culvert and arch ring steel die trolley |
| CN102322028A (en) * | 2011-07-20 | 2012-01-18 | 中铁四局集团第一工程有限公司 | Semi-automatic arch culvert construction template |
| CN202577169U (en) * | 2012-05-16 | 2012-12-05 | 中铁十局集团第二工程有限公司 | Integral mobile arch ring steel die frame for reinforced concrete arch culvert |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945572A (en) * | 2020-08-18 | 2020-11-17 | 中交二航局第二工程有限公司 | Multi-connected arch bridge erecting machine and multi-connected arch bridge erecting method |
| CN111945572B (en) * | 2020-08-18 | 2022-02-25 | 中交二航局第二工程有限公司 | Multi-connected arch bridge erecting machine and multi-connected arch bridge erecting method |
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Application publication date: 20200807 |