CN106812121B - Mold stripping and closing device for self-climbing cantilever template - Google Patents
Mold stripping and closing device for self-climbing cantilever template Download PDFInfo
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- CN106812121B CN106812121B CN201710170992.6A CN201710170992A CN106812121B CN 106812121 B CN106812121 B CN 106812121B CN 201710170992 A CN201710170992 A CN 201710170992A CN 106812121 B CN106812121 B CN 106812121B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/08—Wall dams
- E02B7/12—Arch dams
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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Abstract
The invention provides a mold stripping and closing device for a self-climbing cantilever template, which is characterized in that: the plurality of stress tripods and the template device are arranged along the construction bin surface, and the stress tripods are fixedly connected with the cross beam through a plurality of tripod connecting beams; the top movable mounting that the crossbeam was connected to the tripod has the pole that hangs, and each hangs the one end and the anchor awl connecting plate fixed connection that the pole is close to the template, and one side that the anchor awl connecting plate is close to the template is equipped with the "U" shape connecting hole that falls that is used for connecting the anchor awl, and the other end that each hangs the pole is connected the crossbeam through trimming screw and tripod and is connected, adjusts the distance between connecting hole and the anchor awl through trimming screw. Through adopting adjustable structure that hangs the pole, cooperation fine setting screw rod can adjust whole template device and the position that hangs the support body, and convenient regulation hangs the position of pole end, and then can adjust the position that hangs the pole connecting plate to convenient and anchor awl are connected, thereby adapt to the complicated curved surface shape of arch dam.
Description
Technical Field
The invention relates to an arch dam construction template system, in particular to a mold stripping and closing device for a self-climbing cantilever template.
Background
For a long time, the formworks for pouring the arch dam concrete are all crane lifting type common dam formworks, and the formwork system can meet the requirement of arch dam concrete construction in a common construction environment. However, once the arch dam is in a long-term strong wind environment or the hoisting means is insufficient, the construction safety and the construction efficiency of the common dam template greatly affect the concrete construction operation of the arch dam. The automatic climbing dam template technology can well solve the problems of the common dam template. However, the automatic climbing formwork technology requires that the formwork panel surface is separated from the concrete surface by a certain distance (about 300 mm) in the climbing process so as to facilitate the climbing guide rail to climb to the position first and then integrally climb the formwork and the platform. The structural characteristics of the arch dam determine that the structure of the arch dam has large change of the front-back inclination angle from bottom to top, as shown in fig. 5, the die assembly and the die release of the template in the concrete construction process are all finished on a plane with a large inclination angle, and the conventional structure of the existing dam template only needs to be configured, so that the die assembly and die release requirements in the automatic climbing dam template construction process cannot be met.
Chinese patent document CN 102345381 a describes a hydraulic creeping formwork system and a creeping formwork construction method thereof, which are characterized in that: the climbing system is composed of 4 machine positions and climbing devices attached to the surface of a wall body, the machine positions are arranged on the lateral sides of a transverse bridge, templates, template moving supports, working platforms, hydraulic power devices, hydraulic platforms and modification platforms are arranged on the machine positions from top to bottom, the longitudinal bridge lateral sides are not provided with the machine positions and are only provided with the templates, the template moving supports and the working platforms, people passing channels connected with the climbing face hydraulic platforms, and the templates and the working platforms on the longitudinal bridge lateral sides are driven by the 4 machine positions on the transverse bridge to climb together during climbing. However, the structure of the invention is mostly used for columns, piers or wall-clamping structures with small thickness, the overall strength of the creeping formwork is not high, and the surrounding of the creeping formwork is required to be provided with bent frames for reinforcement. Chinese patent document CN 103635643B also has the same problem, and needs to be fixed by using multiple wall-through tie rods.
For the construction of the arch dam, the bent frames are difficult to arrange for fixation, a fixing structure of the pull rod cannot be adopted, the requirement on the whole formwork climbing system is very high only by fixing the anchor bars and the anchor cones, the surface of the arch dam is not a plane, the inclination angle is large, and the components of the frame body need to be finely adjusted in the construction process. This also puts higher demands on the design of the entire creeper form.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a demolding and demolding mold clamping device for a self-climbing cantilever template, which can meet the mold clamping and demolding operation requirements of a template device in the self-climbing template concrete construction process, can finely adjust a frame body member of the whole template to adapt to the optimal scheme of a complex curved surface structure of an arch dam, can reduce the stress of the demolding device during demolding, and ensures the reliable demolding. The anchor bars and the anchor cones are convenient to embed and install, and the whole climbing formwork device can be conveniently and reliably fixed.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a withdraw from mould MOLD CLAMPING APPARATUS for climbing cantilever template certainly, characterized by: the plurality of stress tripods and the template device are arranged along the construction cabin surface, and the stress tripods are fixedly connected with each other through a plurality of tripod connecting beams;
the top movable mounting that the crossbeam was connected to the tripod has the suspension arm, and the one end that each suspension arm is close to the template is connected with anchor awl connecting plate fixed connection, and one side that the anchor awl connecting plate is close to the template is equipped with the connecting hole of "U" shape that falls that is used for connecting the anchor awl, and the other end of each suspension arm is connected with the crossbeam is connected through fine setting screw and tripod, adjusts the distance between connecting hole and the anchor awl through fine setting screw.
In the preferred scheme, hang the pole and adopt two I-steel or channel-section steel welding back to form, be equipped with the clearance between two I-steel or the channel-section steel, a plurality of clamp plates and tripod are connected crossbeam fixed connection to push down the border that hangs the pole, make to hang the pole and slide along the top of atress tripod.
In the preferred scheme, a suspension rod connecting plate is fixedly arranged on a tripod connecting beam, and a fine tuning screw penetrates through the suspension rod connecting plate to be fixedly connected with a suspension rod.
In the preferred scheme, locking nuts are further arranged on the fine adjustment screw rods and located on two sides of the suspension rod connecting plate.
In a preferred scheme, the bottom of the template device is connected with a connecting module, the connecting module is connected with one end of a sliding rod piece, the other end of the sliding rod piece is connected with one end of a template adjustable shaft rod, and the other end of the template adjustable shaft rod is connected with the back of the template device;
the sliding rod piece is also fixedly connected with the suspension rod through a hydraulic cylinder.
In the preferred scheme, the stress tripod is connected with a hydraulic climbing frame system.
In a preferred scheme, the connecting module is provided with a horizontally arranged long circular groove, and the bottom of the template device is in sliding connection with the long circular groove through a sliding pin;
the bottom of the template device is also connected with a demoulding pull rod, the demoulding pull rod and the connecting module are provided with a first wedge-shaped groove and a second wedge-shaped groove, and the wedge-shaped plate is inserted into the first wedge-shaped groove to enable the template device to move forwards; or the wedge plate is inserted into the second wedge groove to move the template device backwards.
In a preferred scheme, the connecting module is slidably positioned in the gap of the hanging rod and is provided with a limiting device, so that the connecting module can only slide along the hanging rod;
the limiting devices are slotted plates for hooking two wings at the top of the I-shaped steel or the channel steel so as to limit the connecting module not to be separated from the suspension rod.
In a preferable scheme, the bottom of the connecting module is provided with a plurality of connecting module pin holes, the suspension rod is correspondingly provided with a plurality of suspension rod pin holes, the connecting module pin holes are connected with the suspension rod pin holes through pins, and the number of the suspension rod pin holes is more than that of the connecting module pin holes.
In a preferred scheme, the connecting module and the sliding rod piece are provided with rollers, and the rollers roll along the upper surface of the suspension rod.
According to the demolding and die assembling device for the self-climbing cantilever template, the position of the whole template device and a suspension frame body can be adjusted by adopting the structure of the adjustable suspension rod and matching with the fine adjustment screw rod, the position of the end head of the suspension rod can be conveniently adjusted, and further the position of a suspension rod connecting plate can be adjusted to be conveniently connected with an anchor cone, so that the complex curved surface shape of an arch dam can be adapted. The demoulding pull rod and the wedge-shaped plate are arranged, so that the template can be conveniently separated from the concrete surface, and the concrete surface is prevented from being damaged. The adjustable shaft lever of the template can further separate the template from the concrete surface. The structure of the hydraulic cylinder and the sliding rod piece can integrally retreat the template device by about 400mm, so that the self-climbing and fixing operation of the hydraulic climbing frame system is facilitated.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic top view of the mold stripping and clamping apparatus of the present invention.
Fig. 2 is a view from direction B of fig. 1.
Fig. 3 is a schematic structural view of the present invention in use.
Fig. 4 is a schematic structural view of the present invention in use.
Fig. 5 is a schematic view of the cross-sectional layout of the arch dam during the pouring process of the arch dam according to the present invention.
Fig. 6 is a schematic view of the horizontal cross-section arrangement of the arch dam during the pouring process of the arch dam according to the present invention.
FIG. 7 is an enlarged partial view of a connection module according to the present invention.
Fig. 8 is a schematic top view of a connection module of the present invention.
FIG. 9 is a schematic view showing the structure of the mold stripping and clamping apparatus of the present invention.
Fig. 10 is a partially enlarged schematic view of C in fig. 1.
FIG. 11 is a schematic view of the construction steps of the present invention.
In the figure: climbing formwork 1, formwork device 10, formwork 101, transverse wailing 102, truss type longitudinal wailing 103, formwork adjustable shaft rod 104, connecting module 105, long circular groove 1051, roller 1052, connecting module pin hole 1053, sliding pin 1054, wedge plate 1055, connecting module shoe 1056, second wedge groove 1057, first wedge groove 1058, demoulding pull rod 1059, platform leveling pull rod 106, stress tripod 107, suspension rod 108, suspension rod pin hole 1081, suspension rod connecting plate 1082, hydraulic cylinder 109, fine adjustment screw 110, tripod connecting cross beam 111, pressing plate 112, sliding rod 113, anchor cone connecting plate 114, fourth platform 11, triangular support 12, first platform 13, second platform 14, hydraulic climbing system 15, hanging shoe 151, climbing hydraulic cylinder 152, climbing frame guide rail 153, bearing anchor cone 16, climbing anchor cone 17, wind-resistant pull rod 18, third platform 19 and dam body 2.
Detailed Description
In the demolding and clamping device for the self-climbing cantilever formwork, as shown in figures 1-11, a plurality of stress tripods 107 and a formwork device 10 are arranged along a construction cabin surface, as shown in figure 6, and in a preferred scheme, the stress tripods 107 are connected with a hydraulic climbing frame system 15. The stress tripod 107 is composed of a cross bar, a vertical bar and a diagonal bar which are fixedly connected, the cross bar is located at the top, as shown in fig. 3 and 4, a hydraulic climbing system 15 connected with the stress tripod 107 is provided in the hydraulic climbing system 15, a plurality of hanging shoes for connecting with anchor cones, H-shaped climbing guide rails and climbing hydraulic cylinders 152 are provided in the hydraulic climbing system 15, and the climbing system is a prior art, for example, the climbing system described in chinese patent document CN 102345381 a.
As shown in fig. 1, the stressed tripods 107 are fixedly connected with each other through a plurality of tripod connecting beams 111;
as shown in fig. 2 to 4, the top of the tripod connecting beam 111 is movably provided with suspension rods 108, one end of each suspension rod 108 close to the formwork 101 is fixedly connected with an anchor cone connecting plate 114, one side of the anchor cone connecting plate 114 close to the formwork 101 is provided with an inverted U-shaped connecting hole for connecting an anchor cone, the inverted U-shaped connecting hole is fixedly connected with a bearing anchor cone 16 through a bolt during suspension, and the inverted U-shaped connecting hole is provided with a splayed opening for adapting to installation errors. The other end of each suspension rod 108 is connected to a tripod connecting beam 111 by a fine adjustment screw 110, and the distance between the connecting hole and the anchor cone is adjusted by the fine adjustment screw 110. By the structure, the whole template and the whole support can avoid climbing of the hydraulic climbing frame system 15, and the complex curved surface of the arch dam body can be conveniently adapted. Different from the prior art, the self-climbing cantilever template is a cantilever supporting structure, and is not a counter-pulling fixing structure in the prior art, so that higher requirements on self-climbing, reliable suspension fixing and anti-sliding template correction of the template are provided.
In a preferred scheme, as shown in fig. 2, the suspension rod 108 is formed by welding two i-shaped steels or channel steels back to back, a gap is formed between the two i-shaped steels or channel steels, and a plurality of pressing plates 112 are fixedly connected with a tripod connecting beam 111 and press the edge of the suspension rod 108, so that the suspension rod 108 slides along the top of the stressed tripod 107 in a front-back sliding direction. In this example, as shown in fig. 3, the front direction means a direction approaching the die plate device 10, and corresponds to the left direction in the drawing. With the structure, the position of the suspension rod 108 and the template device 10 thereon can be conveniently adjusted by adjusting the fine adjustment screw 110.
In a preferred embodiment, as shown in fig. 10, a suspension rod coupling plate 1082 is fixedly disposed on the tripod connecting beam 111, and the fine adjustment screw 110 penetrates through the suspension rod coupling plate 1082 and is fixedly connected with the suspension rod 108.
In a preferred scheme, locking nuts are further arranged on the fine adjustment screw 110 on two sides of the suspension rod connecting plate 1082. With this arrangement, the fine adjustment screw 110 can be adjusted by rotating the lock nut on either side.
Preferably, as shown in fig. 3 and 4, in the template device, a plurality of transverse wails 102 are arranged on the back surface of a template 101, the transverse wails 102 are connected with truss-like longitudinal wails 103, in this example, the bottom of the template device 10 is located at the bottom of the truss-like longitudinal wails 103, the back of the template device 10 is located at the back of the truss-like longitudinal wails 103, and the horizontal section of the truss-like longitudinal wails 103 is triangular.
The bottom of the template device 10 is connected with a connecting module 105, the connecting module 105 is connected with one end of a sliding rod 113, the other end of the sliding rod 113 is connected with one end of a template adjustable shaft rod 104, and the other end of the template adjustable shaft rod 104 is connected with the back of the template device 10;
the slide rod 113 is also fixedly connected to the suspension rod 108 by means of a hydraulic cylinder 109. With this configuration, the die plate device 10 can be rotated in a bottom circle by adjusting the length of the die plate adjustable shaft 104, and the die plate device 10 can be slid back and forth by adjusting the length of the hydraulic cylinder 109.
In a preferred embodiment, as shown in fig. 3, 4 and 7, the connecting module 105 is provided with a horizontally arranged long circular groove 1051, and the bottom of the template device 10 is slidably connected with the long circular groove 1051 through a sliding pin 1054;
the bottom of the formwork device 10 is also connected with a demoulding pull rod 1059, the demoulding pull rod 1059 and the connecting mould 105 are provided with a first wedge-shaped groove 1058 and a second wedge-shaped groove 1057, and the wedge-shaped plate 1055 is inserted into the first wedge-shaped groove 1058 or the second wedge-shaped groove 1057 so as to enable the formwork device 10 to move back and forth. With the structure, when demolding is performed, the bottom of the truss-type longitudinal wailing 103 is firstly retreated within the stroke range of the long circular groove 1051 by a certain distance, for example, 3cm, so that the lower end of the formwork 101 is separated from the concrete surface, and when the subsequent process of shortening the formwork adjustable shaft rod 104, the lower end of the formwork 101 cannot damage the concrete surface and is also easy to separate.
In a preferred embodiment, the connection module 105 is slidably located in the gap of the hanging rod 108 and is provided with a limiting device, so that the connection module 105 can only slide along the hanging rod 108;
the limiting device is a slotted plate which hooks two wings at the top of the I-shaped steel or the channel steel so as to limit the connecting module 105 from being separated from the suspension rod 108. With this structure, the connection module 105 is limited during the sliding process, thereby preventing the overturn of the formwork.
In a preferred embodiment, the bottom of the connection module 105 is provided with a plurality of connection module pin holes 1053, the suspension bar 108 is correspondingly provided with a plurality of suspension bar pin holes 1081, the connection module pin holes 1053 are connected with the suspension bar pin holes 1081 through pins, and the number of the suspension bar pin holes 1081 is greater than the number of the connection module pin holes 1053. With this structure, the connecting module 105 is used for connecting and disconnecting with the suspension bar 108, and can be securely fixed with the suspension bar 108 at both the sliding start position and the sliding end position of the connecting module 105.
In a preferred embodiment, the connecting module 105 and the sliding bar member 113 are provided with rollers 1052, and the rollers 1052 roll along the upper surface of the hanging bar 108. With this structure, the resistance to movement of the entire template device 10 is reduced.
In a preferred scheme, the bottom supporting leg of the stress tripod 107 is an adjustable structure, in this example, a structure which is adjusted by matching a plurality of pin holes at different positions with pins is adopted, so that the angle of each triangle of the stress tripod 107 is changed correspondingly according to the dam body 2;
the supporting legs connected with the bottom of the triangular support 12 also adopt an adjustable structure. By the structure, the stress and climbing requirements of the template are better met.
In a preferred scheme, as shown in fig. 3 and 4, a plurality of platforms for construction are further arranged, and the platforms adopt a connection structure capable of being leveled. As shown in fig. 3, a first platform 13, a second platform 14, a third platform 19 and a fourth platform 11 are sequentially arranged from top to bottom, each platform is provided with an adjustable support structure, for example, a structure of a platform leveling pull rod 106, the platform leveling pull rod 106 is in a structure of a double screw and a threaded sleeve, and the length of the whole platform leveling pull rod 106 is adjusted by rotating the threaded sleeve, so that each platform is kept horizontal, construction of constructors on a horizontal plane is facilitated, related construction equipment is also facilitated to be placed, and safety of constructors is ensured.
A wind-resistant pull rod 18 is further arranged, and the wind-resistant pull rod 18 fixedly connects the template device 10 and the stress tripod 107 with the bearing anchor cone 16. With this structure, the safety is further improved.
By adopting the demolding process, the invention is shown in figures 1-4 and 11:
when the concrete pouring is completed and the strength specified for demolding is reached, demolding may be started. The specific operation flow is as follows:
1. inserting the wedge-shaped plate 1055 on the connecting module 105 into the second wedge-shaped groove 1057, knocking the wedge-shaped plate 1055, and enabling the bottom of the template 101 to be 10-20 mm away from the concrete surface;
2. rotating the adjustable shaft lever 104 of the template, wherein the upper opening of the template is 10-20 mm away from the concrete surface;
3. removing the connection pin between the connection module 105 and the suspension bar 108;
4. starting a power supply of a central pump station of the hydraulic cylinders 109, wherein about 20 hydraulic cylinders 109 on the whole warehouse surface can be grouped or simultaneously extended, and the sliding rod members 113 are extended backwards, so that the whole formwork device 10 moves backwards for a distance of about 30-40 cm along the direction vertical to the concrete surface;
5. the pins between the connection module 105 and the suspension bar 108 are mounted in place;
6. according to the actual situation of curve change in the height direction of the arch dam, whether the fine adjustment screw 110 needs to be adjusted or not is determined, so that the whole suspension rod 108 moves backwards by 10-20 mm.
Thus, the whole demolding process is completed.
The mold closing process is shown in figures 1-4 and 11:
the mold closing process is basically the reverse operation of the mold stripping process, and the specific operation process is as follows:
1. if the fine tuning screw 110 is adjusted during the demolding, the fine tuning screw needs to be rotated reversely until the suspension rod 108 can be fixed on the pre-embedded anchoring point, such as the bearing anchor cone 16;
2. removing the pins between the connection module 105 and the suspension bar 108;
3. and starting the central pump station of the hydraulic cylinders 109, wherein about 20 hydraulic cylinders 109 on the whole bin surface can be grouped or simultaneously contracted, pulling the sliding rod piece 113, and closing the power supply of the central pump station after the whole template device 10 moves for a certain distance in the direction vertical to the concrete surface.
4. The pins between the connection module 105 and the suspension bar 108 are mounted in place;
5. inserting a wedge-shaped plate 1055 on the connecting module 105 into a first wedge-shaped groove 1058, knocking the wedge-shaped plate 1055 to enable the bottom of the template to be tightly propped against the concrete surface;
6. the template adjustable shaft 104 is rotated to adjust the template verticality.
Thus, the whole mold closing process is completed.
With the overall construction method of the invention, as shown in fig. 11:
according to the design parting, pour the block composition by a plurality of on the arch dam plane, high successive layer pour rise, single pouring piece, the equal erection template of upper and lower reaches face and both sides horizontal joint face of pouring the piece earlier promptly, later pour a piece both sides horizontal joint face and need not the erection template, its concrete step is:
referring to fig. 11, step one: the method comprises the following steps of installing a first-layer template by adopting an upper template system of a large steel template or a self-elevating cantilever template, embedding a first-layer bearing anchor cone and a first-layer climbing anchor cone, and pouring first-layer concrete after the procedures in a bin are finished.
Step two: the first-layer template is dismantled, the first-layer bearing anchor cone and the connecting bolt are used as suspension points, the template system of the self-elevating cantilever template is adopted, and the hydraulic climbing frame system 15 and the platform system are not included because the height of the poured concrete cannot meet the requirement. And installing a second-layer template, embedding a second-layer bearing anchor cone and a second-layer climbing anchor cone, and pouring second-layer concrete after the working procedure in the bin is finished.
Step three: the second layer of template is lifted to a third layer to be poured by using a second layer of bearing anchor cone 16 and connecting bolts as suspension points, a hydraulic climbing frame system 15 is installed, a construction platform system is installed, such as a first platform 13, a second platform 14, a third platform 19 and a fourth platform 11, suspension boots are respectively installed at the first layer of climbing anchor cone and the second layer of climbing anchor cone, climbing frame guide rails 153 sequentially penetrate into the second layer of suspension boots, the first layer of suspension boots, the climbing frame guide rails 153 are connected with an SKE50 climbing device in a matching mode from top to bottom, the third layer of bearing anchor cone and the third layer of climbing anchor cone are buried, and the third layer of concrete is poured after the procedure in a bin is completed.
Step four: and (4) withdrawing the formwork system of the hydraulic self-elevating cantilever formwork on the third pouring layer.
1. And taking out the connecting bolt matched with the third layer bearing anchor cone and the third layer climbing anchor cone on the back surface of the template panel, wherein the link is to remove the constraint of the template panel and the anchor cone pre-embedded in the concrete.
2. And (4) removing the seam splicing plate between the two templates on the upstream and downstream surfaces. The joint plates are characterized in that the arch dam is usually designed to be a hyperbolic arch dam, the curvatures of a dam body in the vertical and horizontal directions are constantly changed, the size of a vertical gap between an upstream face template and a downstream face template is increased and then reduced along with the rising of the dam body, and a V-shaped gap and an inverted V-shaped gap can be formed between the template units; the splicing plates are arranged between the template units for convenient construction, and the width of the splicing plates can be adjusted according to the change requirement.
3. The bottom opening of the template is separated from the concrete surface in the step of demoulding; the adjustable shaft lever 104 of the template is adjusted to make the whole template device 10 separate from the concrete surface by 10-20 mm. The truss type longitudinal wailing 103 improves the strength and rigidity of the template and ensures the quality and precision of a concrete pouring body with a pouring height of 4.5m, so that the flatness of the guide rail after the guide rail is in place is ensured, and the climbing formwork can climb smoothly as a whole.
4. The hydraulic circuit of the hydraulic cylinder 109 is installed so that the whole formwork apparatus 10 is detached from the concrete surface by about 400mm, and the pin connecting the module and the suspension rod 108 is restored.
5. And a connecting bolt and a hanging boot at the third layer climbing anchor cone of the upper opening of the template are installed.
6. And a hydraulic oil circuit of the hydraulic climbing frame system 15 is installed, and the climbing frame guide rail 153 climbs to the hanging shoe of the third-layer climbing anchor cone 17. The climbing frame rail 153 climbs into place in preparation for the step five template climbing.
7. The wind-resistant tie-rods 18 of the formwork are removed. The wind-resistant pull rod is used for increasing the stability of the template in a strong wind environment, and the constraint of the template is relieved by removing the wind-resistant pull rod.
8. The adjustable legs of the triangular support 12 are retracted away from the concrete surface.
9. And (4) removing the first-layer bearing anchor cone and the connecting bolt of the concrete surface corresponding to the fourth platform 11, and the first-layer climbing anchor cone and the connecting bolt. The anchoring piece can be used in the upper bin position in a turnover mode, and the phenomenon that the work load is increased due to the fact that the later dam body is poured to the top and then is detached is avoided.
Step five: and the third pouring layer is used for climbing the whole body of the mold stripping and closing device and the frame body of the self-climbing cantilever template to the fourth pouring layer to be poured.
1. Starting a hydraulic climbing frame system 15, and climbing 150mm from the whole of the mold stripping and closing device of the climbing cantilever template to remove the connecting bolt of the second layer bearing anchor cone; and adjusting the fine adjustment screw 110 to enable the suspension rod 108 and the template device to integrally move backwards by 10-20 mm. Therefore, the gap between the front end of the suspension rod 108 and the concrete is increased, and smooth climbing of the template is ensured.
2. And starting the hydraulic climbing frame system 15, and climbing the whole die stripping and closing device of the self-climbing cantilever template to a position 150mm above the third layer of bearing anchor cone to install a connecting bolt.
3. And adjusting the fine adjustment screw rod 110, and integrally moving the suspension rod 108 and the template device 10 forward by 10-20 mm to enable the distance between the front end of the suspension rod 108 and the concrete surface to be 10-20 mm.
4. And starting the hydraulic climbing frame system 15, and enabling the die withdrawing and die assembling device of the self-climbing cantilever template and the whole frame body to fall down, so that the hook at the front end of the suspension rod 108 is clamped on the screw rod of the connecting bolt of the third layer bearing anchor cone.
Step six: and the to-be-poured layer is used for template die assembly and operation platform leveling of the die withdrawing and die assembling device of the self-climbing cantilever template.
1. The diagonal platform leveling braces 106 of each platform are adjusted to level the platform.
2. And extending the adjustable supporting legs of the lower support of the formwork to enable the adjustable supporting legs to be tightly attached to the concrete surface.
3. And installing a connecting bolt of a second layer of bearing anchor cone and a template wind-resistant pull rod.
4. And finishing the mold closing process.
Template adjustable shaft 104 is adjusted to position the template panel at the design edge line position.
5. And a fourth layer of bearing anchor cone and connecting bolt and a fourth layer of climbing anchor cone and connecting bolt are arranged at the upper opening of the mounting template.
6. And a seam splicing plate between the two templates on the upper and lower surfaces is installed.
Step seven: and after the work of the spare bin in the bin is finished and the check is accepted, pouring a fourth layer of concrete.
Step eight: and repeating the fourth step to the seventh step to finish the concrete pouring of the fifth layer, and repeating the steps until the arch dam is poured to the designed height.
The maximum pouring height of the template 101 is 4.5m, and the width of a single standard template is 3 m; the upper and lower surfaces of the arch dam are composed of a plurality of templates, and seam splicing plates are arranged among the templates to adapt to the change of the body-shaped curved surface of the arch dam; the arch dam transverse seam surface consists of a plurality of templates. The semicircular key groove template is fixed on the panel of the transverse seam surface template, so that the requirement of the transverse seam surface structure of the arch dam is met.
The single template is provided with 2 stress tripods 107, and the middle parts of the 2 stress tripods 107 are provided with the hydraulic climbing system 15. The structure system solves the problems that the template is not required to be reinforced by the tie bars, and reduces the work load and the manual work load of the tie bars; secondly, the problem of climbing the cantilever template is solved. The stress tripod 107 and the climbing frame system form independent systems respectively, exert respective functions, are tightly matched without mutual interference, and form an integral structure through the formwork body and each layer of operating platform.
In the fourth step, a power supply of a central pump station of the hydraulic cylinders 109 is started, all the hydraulic cylinders 109 on the whole cabin surface can act in groups or simultaneously, and single-block, single-side or four-side template panels and truss-type longitudinal wails 103 can be separated from the concrete surface or move towards the cabin interior.
The climbing of the climbing rail 153 includes an extending movement (idle stroke) of the climbing cylinder 152 and a retracting movement (working stroke) of the hydraulic cylinder 109. At the moment, the whole climbing frame system is anchored on the concrete wall surface by using a hanging shoe, and the control handles of the upper lifting device and the lower lifting device are arranged at the position of an upper guide rail; the climbing frame guide rail 153 is engaged and fixed in position with the upper lifting device of the hydraulic climbing frame system 15, and the climbing frame hydraulic cylinder 152 drives the lower lifting device to extend downwards until the lower lifting device is embedded into the square groove of the climbing frame guide rail 153; the lower lifting device is meshed with the climbing frame guide rail 153 and fixed in place, the climbing frame hydraulic cylinder 152 drives the lower lifting device to contract upwards until the upper lifting device is automatically meshed with the climbing frame guide rail 153 again and fixed in place, and at the moment, the upper lifting device drives the climbing frame guide rail 153 to climb upwards; alternating actions are performed until the guide rail is climbed into place.
When the stress tripod 107 and the template device 10 climb, the whole climbing guide rail 153 is initially fixed on the concrete wall surface by the hanging shoes 151 and the anchor cones, and the control handles of the upper lifting device and the lower lifting device are arranged at the position of the lower climbing frame; the lower lifting device is meshed and fixed with the guide rail, the climbing frame hydraulic cylinder 152 drives the upper lifting device to extend upwards to drive the whole climbing frame system and the template to move upwards until the upper lifting device is meshed with the climbing frame guide rail 153 automatically again and fixed in place; the whole climbing system is fixed on a climbing guide rail 153 by the upper lifting device, and the climbing hydraulic cylinder 152 drives the lower lifting device to contract upwards for a vacant stroke until the lower lifting device is automatically meshed and fixed with the climbing hydraulic cylinder 152; the actions are alternated until the template and the stress tripod 107 are integrally climbed into position.
The operation method of the whole falling of the template and the stress tripod 107 is the reverse operation of climbing.
In the fifth step, the hydraulic frame climbing system 15 can be started in groups or at the same time, so that a single template and a frame body can climb, a single transverse seam surface or a single template and frame body on the upstream and downstream surfaces can climb, and the templates and the frame body on the four surfaces of the warehouse can climb integrally and synchronously. The templates on four sides of the bin space can be climbed quickly and integrally, only 8-10 hours are needed, the whole construction process is safe and reliable, and external environmental factors such as the influence of strong wind on the construction progress are reduced.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (6)
1. The utility model provides a withdraw from mould MOLD CLAMPING APPARATUS for climbing cantilever template certainly, characterized by: the stress tripods (107) and the template device (10) are arranged along the construction cabin surface of the dam body (2), and the stress tripods (107) are fixedly connected through a plurality of tripod connecting beams (111);
the top of the tripod connecting beam (111) is movably provided with suspension rods (108), one end of each suspension rod (108), which is close to the template (101), is fixedly connected with an anchor cone connecting plate (114), one side of each anchor cone connecting plate (114), which is close to the template (101), is provided with an inverted U-shaped connecting hole for connecting an anchor cone, the other end of each suspension rod (108) is connected with the tripod connecting beam (111) through a fine adjustment screw (110), and the distance between the connecting hole and the anchor cone is adjusted through the fine adjustment screw (110);
the suspension rod (108) is formed by welding two I-shaped steels or channel steels back to back, a gap is formed between the two I-shaped steels or channel steels, and a plurality of pressing plates (112) are fixedly connected with a tripod connecting beam (111) and press the edge of the suspension rod (108) so that the suspension rod (108) slides along the top of the stress tripod (107);
a suspension rod connecting plate (1082) is fixedly arranged on the tripod connecting beam (111), and a fine tuning screw (110) penetrates through the suspension rod connecting plate (1082) to be fixedly connected with the suspension rod (108);
locking nuts are further arranged on the fine adjustment screw rod (110) and located on two sides of the suspension rod connecting plate (1082);
the bottom of the template device (10) is connected with the connecting module (105), the connecting module (105) is connected with one end of the sliding rod piece (113), the other end of the sliding rod piece (113) is connected with one end of the template adjustable shaft rod (104), and the other end of the template adjustable shaft rod (104) is connected with the back of the template device (10);
the sliding rod (113) is also fixedly connected with the suspension rod (108) through a hydraulic cylinder (109).
2. The demolding mold clamping device for the self-climbing cantilever mold plate as claimed in claim 1, wherein: the stress tripod (107) is connected with the hydraulic climbing frame system (15).
3. The demolding mold clamping device for the self-climbing cantilever mold plate as claimed in claim 2, wherein: the connecting module (105) is provided with a horizontally arranged long circular groove (1051), and the bottom of the template device (10) is connected with the long circular groove (1051) in a sliding way through a sliding pin (1054);
the bottom of the template device (10) is also connected with a demoulding pull rod (1059), the demoulding pull rod (1059) and the connecting module (105) are provided with a first wedge-shaped groove (1058) and a second wedge-shaped groove (1057), and the wedge-shaped plate (1055) is inserted into the first wedge-shaped groove (1058) to enable the template device (10) to move forwards; or the wedge plate (1055) is inserted into the second wedge groove (1057) to move the template device (10) backward.
4. The demolding mold clamping device for the self-climbing cantilever mold plate as claimed in claim 2, wherein: the connecting module (105) is slidably arranged in the gap of the hanging rod (108) and is provided with a limiting device, so that the connecting module (105) can only slide along the hanging rod (108);
the limiting device is a slotted plate which hooks two wings at the top of the I-shaped steel or the channel steel so as to limit the connecting module (105) from being separated from the suspension rod (108).
5. The demolding and clamping device for the self-climbing cantilever formwork as claimed in claim 2, wherein: the bottom of the connecting module (105) is provided with a plurality of connecting module pin holes (1053), the suspension rod (108) is correspondingly provided with a plurality of suspension rod pin holes (1081), the connecting module pin holes (1053) are connected with the suspension rod pin holes (1081) through pins, and the number of the suspension rod pin holes (1081) is more than that of the connecting module pin holes (1053).
6. The demolding and clamping device for the self-climbing cantilever formwork as claimed in claim 2, wherein: the connecting module (105) and the sliding rod piece (113) are provided with rollers (1052), and the rollers (1052) roll along the upper surface of the suspension rod (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710170992.6A CN106812121B (en) | 2017-03-21 | 2017-03-21 | Mold stripping and closing device for self-climbing cantilever template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710170992.6A CN106812121B (en) | 2017-03-21 | 2017-03-21 | Mold stripping and closing device for self-climbing cantilever template |
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| Publication Number | Publication Date |
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| CN106812121A CN106812121A (en) | 2017-06-09 |
| CN106812121B true CN106812121B (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710170992.6A Active CN106812121B (en) | 2017-03-21 | 2017-03-21 | Mold stripping and closing device for self-climbing cantilever template |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812120B (en) * | 2017-03-21 | 2022-09-02 | 中国葛洲坝集团三峡建设工程有限公司 | Hydraulic self-lifting truss type cantilever heavy arch dam template system |
| CN112709194A (en) * | 2020-12-28 | 2021-04-27 | 云南建投第二水利水电建设有限公司 | Hydraulic sliding formwork construction complete equipment for gate pier and construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH476191A (en) * | 1967-08-12 | 1969-07-31 | Luchterhand Schalungen Kommand | Climbing formwork and procedures for its operation during concreting |
| CN2929056Y (en) * | 2005-05-25 | 2007-08-01 | 北京卓良模板有限公司 | Hydraulic driving automatic climbing formwork |
| CN201826525U (en) * | 2010-07-27 | 2011-05-11 | 南京道广建筑模板有限公司 | Climbing shuttering system device for buildings |
| CN202247894U (en) * | 2011-09-05 | 2012-05-30 | 葛洲坝集团第二工程有限公司 | Double-strut cantilever template |
| CN204475342U (en) * | 2014-12-30 | 2015-07-15 | 南京道广建筑模板有限公司 | Pile structure concrete in mass plate device |
| CN205742991U (en) * | 2016-05-02 | 2016-11-30 | 北京星河人施工技术有限责任公司 | A kind of truss-like hydraulic pressure integral steel platform jumping formwork |
| CN206607554U (en) * | 2017-03-21 | 2017-11-03 | 中国葛洲坝集团三峡建设工程有限公司 | Mould mold closing mechanism is moved back for the cantilever form that climbs certainly |
-
2017
- 2017-03-21 CN CN201710170992.6A patent/CN106812121B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH476191A (en) * | 1967-08-12 | 1969-07-31 | Luchterhand Schalungen Kommand | Climbing formwork and procedures for its operation during concreting |
| CN2929056Y (en) * | 2005-05-25 | 2007-08-01 | 北京卓良模板有限公司 | Hydraulic driving automatic climbing formwork |
| CN201826525U (en) * | 2010-07-27 | 2011-05-11 | 南京道广建筑模板有限公司 | Climbing shuttering system device for buildings |
| CN202247894U (en) * | 2011-09-05 | 2012-05-30 | 葛洲坝集团第二工程有限公司 | Double-strut cantilever template |
| CN204475342U (en) * | 2014-12-30 | 2015-07-15 | 南京道广建筑模板有限公司 | Pile structure concrete in mass plate device |
| CN205742991U (en) * | 2016-05-02 | 2016-11-30 | 北京星河人施工技术有限责任公司 | A kind of truss-like hydraulic pressure integral steel platform jumping formwork |
| CN206607554U (en) * | 2017-03-21 | 2017-11-03 | 中国葛洲坝集团三峡建设工程有限公司 | Mould mold closing mechanism is moved back for the cantilever form that climbs certainly |
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| CN106812121A (en) | 2017-06-09 |
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