A steam curing method for hydraulic climbing formwork construction

Abstract

The present invention provides a steam curing method for hydraulic climbing formwork construction, comprising the following steps: installing a hydraulic platform tarpaulin, installing a main platform tarpaulin, installing a hanging platform tarpaulin, installing a water collection trough, installing a formwork corner tarpaulin, installing a formwork seam connection tarpaulin, installing a cover plate, horizontally tightening the tarpaulin, arranging a fog generator, and performing first-stage curing, second-stage curing, and third-stage curing. This method utilizes a fully enclosed wrapping and steam circulation curing method, ensuring that the tower column concrete remains fully covered with fog particles and avoiding quality risks that may arise from improper curing.

Description

Technical Field

[0001] The invention relates to the technical field of concrete steam curing, in particular to a steam curing method for hydraulic climbing formwork construction. Background Art

[0002] Currently, many large bridges, both domestically and internationally, are gradually developing taller towers and longer spans. The use of steam curing in tower hydraulic climbing formwork construction can effectively improve the quality, stability, and controllability of concrete curing. Currently, mainstream pier and tower construction mostly uses curing with formwork or film wrapping, which offers low reliability and poor quality assurance. Furthermore, these methods are significantly affected by weather and the environment, making it difficult to effectively and reliably cure finished concrete in harsh climates. Summary of the Invention

[0003] In view of the above-mentioned prior art, the present invention proposes a steam curing method for hydraulic climbing formwork construction to improve the efficiency and quality of steam curing in hydraulic climbing formwork construction.

[0004] The present invention provides a steam curing method for hydraulic climbing formwork construction, comprising the following steps:

[0005] S1. Install the hydraulic platform tarpaulin: Install the hydraulic platform tarpaulin on the hydraulic platform along the pier body;

[0006] S2. Install the main platform tarpaulin: Install the main platform tarpaulin on the main platform along the pier body;

[0007] S3. Install the tarpaulin on the hanging platform: Install the tarpaulin on the hanging platform along the pier body;

[0008] S4. Install the water collection tank: Arrange the water collection tank under the hanging platform according to the on-site maintenance requirements;

[0009] S5. Install the template corner tarpaulin: Install the template corner tarpaulin at the corner of the template;

[0010] S6. Install the template seam connecting tarpaulin: Install the template seam connecting tarpaulin at the gap of the template;

[0011] S7. Install the cover plate: install the cover plate on the upper end of the template before removing the template;

[0012] S8. Horizontally tighten the tarpaulin: Fix a number of vertical steel pipes in the hydraulic platform and the hanging platform, and tighten the hydraulic platform tarpaulin and the hanging platform tarpaulin horizontally through the vertical steel pipes and Velcro;

[0013] S9. Arrange fog machines: Arrange fog machines on both the top platform and the hydraulic platform;

[0014] S10, first stage curing: From the completion of concrete pouring to the start of demoulding, a first enclosed space is formed by the formwork, cover plate, and tarpaulins. A fog machine is turned on to generate hot mist particles. The mist is evenly delivered to all parts of the first enclosed space through an outlet pipe for the first stage of curing with molds. Condensed water from the mist in the first enclosed space is collected in a water collection tank and recycled.

[0015] S11, Second Stage Curing: From the stage when demoulding is completed to the stage when the formwork frame is lifted, a second enclosed space is formed by the formwork, cover plate, formwork corner tarpaulin, formwork seam connecting tarpaulin and main platform tarpaulin. The fog machine is turned on to produce hot mist particles, and the mist is evenly transported to all parts of the second enclosed space through the exhaust pipe for the second stage curing. The condensed water of the mist in the second enclosed space is collected in the water collection tank and recycled.

[0016] S12. Third stage maintenance: After the formwork frame is lifted, a third enclosed space is formed by the hydraulic platform tarpaulin and the hanging platform tarpaulin. The fog machine is turned on to produce hot fog particles, and the fog is evenly transported to various parts of the third enclosed space through the exhaust pipe to complete the third stage of maintenance. The condensed water of the fog in the third enclosed space is collected through the water collection tank for recycling.

[0017] Preferably, each tarpaulin is a three-layer stitched structure, with the outer two layers being tarpaulin and the middle layer being fiberglass. Both the tarpaulin and fiberglass are carefully selected fire-resistant and high-temperature resistant materials, ensuring that they will not spontaneously combust at low temperatures, but will automatically extinguish after annealing if ignited at high temperatures.

[0018] Preferably, the cover plate is made of polypropylene (PP) plate, which is light in weight, high temperature resistant and wear resistant.

[0019] The fog machine adopts an ultrasonic plasma fog machine. Compared with the traditional fog machine (high-pressure nozzle), the diameter of the fog droplets produced by the ultrasonic fog machine is smaller, reaching the micron level, which can achieve the effect of being in it without feeling it.

[0020] Preferably, in S1, both sides of the hydraulic platform tarpaulin are clamped on the climbing formwork tripod uprights through buckles, the top of the hydraulic platform tarpaulin is clamped on the supporting square tube through buckles, and the supporting square tube is fixed to the springboard of the main platform by bolts.

[0021] Preferably, in S2, the main platform tarpaulin is fixed to the lower end of the template by self-tapping screws.

[0022] Preferably, in S3, both sides of the hanging platform tarpaulin are clamped on the guide rails through buckles, and the top of the hanging platform tarpaulin is connected to the bottom of the hydraulic platform tarpaulin.

[0023] Preferably, in S4, the fixed steel plate is installed on the springboard by self-tapping screws, a connecting steel pipe is welded at the bottom of the water collecting tank, the connecting steel pipe is connected to the fixed steel plate by bolts, the position of the water collecting tank is adjusted and the bolts are tightened, a water-absorbing sponge is installed on the top of the water collecting tank, and a drain pipe is installed at the bottom of the water collecting tank.

[0024] Preferably, in S5, one side of the template corner tarpaulin is installed on the wooden beam web by self-tapping screws, and the other side is clamped on the corner template reinforcement plate by clips.

[0025] Preferably, in S6, the top of the template seam connected to the tarpaulin is clamped on the back rib by a buckle, and the two sides of the template seam connected to the tarpaulin are respectively installed on the wooden beam with self-tapping screws.

[0026] Preferably, in S7, the cover plate is clamped on the stirrups by snaps.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention proposes a steam curing method for hydraulic climbing formwork construction. The entire curing process can be divided into three stages: from the completion of concrete pouring to demoulding, from the completion of demoulding to the lifting of the formwork frame, and after the lifting of the frame. The total curing time is the interval time from the completion of concrete pouring to the lifting of the formwork and the frame. During the entire period, the tower column concrete can be continuously cured stably and controllably; and after the steam curing device is installed and sealed, the fog machine is turned on by a switch to produce hot mist particles, and the mist is evenly transported to various places in the tarpaulin enclosed space through the exhaust pipe to cure the tower column concrete surface. Finally, the condensed water of the mist in the tarpaulin enclosed space is collected by the water collection tank for recycling, thereby eliminating the local inadequacies that may exist in traditional curing methods such as manual sprinkling and film covering.

[0029] 2. This invention utilizes a fully enclosed wrapping and steam circulation curing method, ensuring that the tower column concrete remains completely covered by mist particles, avoiding quality risks that could arise from improper curing. This also eliminates the low recycling rates of water resources, tarpaulins, and plastic film, significantly reducing construction costs. Furthermore, this method addresses the issue of low temperatures in high-altitude cold regions. Micron-sized mist particles circulate within the fully enclosed space, ensuring that the tower column concrete curing conditions are unaffected by the external climate.

[0030] 3. The present invention fully considers the needs of fogging and curing, improves the quality and stability of concrete curing, and also has relatively flexible controllability and stability, reduces construction costs, saves construction time, and further improves the quality and appearance of concrete construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front view of an embodiment of the present invention.

[0032] Figure 2 2 is a top view of an embodiment of the present invention.

[0033] Figure 3 、 4 All of them are schematic diagrams of local structures of embodiments of the present invention.

[0034] In the figure, 1. Hydraulic platform; 2. Main platform; 3. Formwork; 4. Hanging platform; 5. Water collecting trough; 6. Fixed steel plate; 7. Connecting steel pipe; 8. Water-absorbing sponge; 9. Drain pipe; 10. Formwork corner tarpaulin; 11. Formwork seam connecting tarpaulin; 12. Cover plate; 13. Top platform; 14. Fog machine; 15. Web of wooden beam; 16. Angle form reinforcement plate. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations. Example

[0036] A steam curing method for hydraulic climbing formwork construction, such as Figure 1-4 As shown, the following steps are included:

[0037] S1. Installing the hydraulic platform tarpaulin: Install the hydraulic platform tarpaulin on the hydraulic platform 1 along the pier body; both sides of the hydraulic platform tarpaulin are clamped on the vertical poles of the climbing formwork tripod through buckles, and the top of the hydraulic platform tarpaulin is clamped on the supporting square tube through buckles, and the supporting square tube is fixed to the springboard of the main platform 2 through bolts.

[0038] S2. Installing the main platform tarpaulin: Install the main platform tarpaulin on the main platform 2 along the pier body; the main platform tarpaulin is fixed to the lower end of the formwork 3 by self-tapping screws.

[0039] S3. Install the hanging platform tarpaulin: install the hanging platform tarpaulin on the hanging platform 4 along the pier body; both sides of the hanging platform tarpaulin are clamped on the guide rails through buckles, and the top of the hanging platform tarpaulin is connected to the bottom of the hydraulic platform tarpaulin through bolted square tubes.

[0040] S4. Install the water collection tank: Arrange the water collection tank 5 below the hanging platform according to the on-site maintenance requirements; Figure 3As shown, the fixed steel plate 6 is installed on the springboard of the frame through self-tapping screws, the connecting steel pipe 7 is welded to the bottom of the water collecting tank 5, the connecting steel pipe 7 is connected to the fixed steel plate 6 through bolts, the position of the water collecting tank 5 is adjusted and the bolts are tightened, a water-absorbing sponge 8 is installed on the top of the water collecting tank 5, and a drainage pipe 9 is installed at the bottom of the water collecting tank 5; the water collecting tank 5 collects the water condensed by the water mist during the mist-making process, and the drainage pipe 9 is used to discharge the water to the inside of the pier body through the tie rod hole, so as to avoid watermarks on the external pier body, which affects the appearance quality of the concrete. At the same time, the condensed water can be recycled, which effectively reduces the waste of water resources.

[0041] S5. Install the template corner tarpaulin: Figure 2 As shown, the template corner tarpaulin 10 is installed at the corner of the template 3; Figure 4 As shown, one side of the template corner tarpaulin 10 is mounted on the wooden beam web 15 by self-tapping screws, and the other side is clamped on the corner form rib 16 by clips;

[0042] S6. Install the template seam to connect the tarpaulin: Figure 2 As shown, a template seam-connected tarpaulin 11 is installed at the gap of the template 3; the top of the template seam-connected tarpaulin 11 is clamped on the back rib by a buckle, and both sides of the template seam-connected tarpaulin 11 are respectively installed on the wooden beams with self-tapping screws; to prevent the template seam-connected tarpaulin 11 from collapsing in the middle, steel bars can be used to thread the tarpaulin buckles to restrain it;

[0043] S7, Install the cover: Figure 1 As shown, before demoulding, the cover plate 12 is installed on the upper end of the template 3, and the cover plate 12 is clamped on the stirrup by a buckle. Before closing the mold, the cover plate 12 is removed for the next installation;

[0044] S8. Horizontally tighten the tarpaulin: In the hydraulic platform 1 and the hanging platform 4, a vertical steel pipe is fixed between each two frames. Adhesive Velcro is installed on both the hydraulic platform tarpaulin and the hanging platform tarpaulin. The paired Velcro is used to bypass the vertical steel pipe to tighten the hydraulic platform tarpaulin and the hanging platform tarpaulin horizontally.

[0045] S9. Arrange fog machines: Arrange fog machines 14 on both the top platform 13 and the hydraulic platform 1, with 6 fog machines evenly distributed on each floor (do not place them on the cutting surface of the platform to avoid movement later). After the arrangement is completed, place the humidity sensor in a suitable position inside the tarpaulin;

[0046] S10, first stage curing: From the completion of concrete pouring to the start of demoulding, a first enclosed space is formed by the formwork 3, the cover plate 12, and the tarpaulins. The fog machine 14 is turned on to produce hot mist particles. The mist is evenly transported to all parts of the first enclosed space through the outlet pipe for the first stage of mold curing. The condensed water of the mist in the first enclosed space is collected in the water collection tank 5 for recycling.

[0047] S11, second stage curing: During the period from demoulding completion to the completion of the formwork frame lifting, a second enclosed space is formed by the formwork 3, cover plate 12, formwork corner tarpaulin 10, formwork seam connection tarpaulin 11, and main platform tarpaulin. The fog machine 14 is turned on to produce hot mist particles, and the mist is evenly transported to all parts of the second enclosed space through the outlet pipe for the second stage curing. The condensed water of the mist in the second enclosed space is collected by the water collection tank 5 for recycling.

[0048] S12, third stage maintenance: After the formwork frame is lifted, a third closed space is formed by the hydraulic platform tarpaulin and the hanging platform tarpaulin, the fog machine 14 is turned on to produce hot mist particles, and the mist is evenly transported to various parts of the third closed space through the exhaust pipe to complete the third stage of maintenance. The condensed water of the mist in the third closed space is collected by the water collection tank 5 for recycling.

[0049] Among them, each tarpaulin is a three-layer sewn structure, the outer two layers are tarpaulins, and the middle layer is a glass fiber layer; the cover plate 12 is made of polypropylene PP board; the fog machine 14 is an ultrasonic plasma fog machine.

[0050] This embodiment utilizes a fully enclosed wrapping and steam circulation curing method, ensuring that the tower column concrete remains completely covered with mist particles, avoiding quality risks that could arise from improper curing. This also eliminates the issues of low recycling rates for water resources, tarpaulins, and plastic film, significantly reducing construction costs. Furthermore, the low temperatures found in high-altitude and cold regions are addressed by circulating micron-sized mist particles within the fully enclosed space, ensuring that the tower column concrete curing conditions are unaffected by the external climate.

[0051] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure made using the contents of the present invention's description and drawings, directly or indirectly applied to other related technical fields, shall also fall within the patent protection scope of the present invention.

Claims

1. A steam curing method for hydraulic climbing formwork construction, characterized in that: The steps include: S1. Install the hydraulic platform tarpaulin: Install the hydraulic platform tarpaulin on the hydraulic platform along the pier body; S2. Install the main platform tarpaulin: Install the main platform tarpaulin on the main platform along the pier body; S3. Install the tarpaulin on the hanging platform: Install the tarpaulin on the hanging platform along the pier body; S4. Install the water collection tank: Arrange the water collection tank under the hanging platform according to the on-site maintenance requirements; S5. Install the template corner tarpaulin: Install the template corner tarpaulin at the corner of the template; S6. Install the template seam connecting tarpaulin: Install the template seam connecting tarpaulin at the gap of the template; S7. Install the cover plate: install the cover plate on the upper end of the template before removing the template; S8. Horizontally tighten the tarpaulin: Fix a number of vertical steel pipes in the hydraulic platform and the hanging platform, and tighten the hydraulic platform tarpaulin and the hanging platform tarpaulin horizontally through the vertical steel pipes and Velcro; S9. Arrange fog machines: Arrange fog machines on both the top platform and the hydraulic platform; S10, first stage curing: From the completion of concrete pouring to the start of demoulding, a first enclosed space is formed by the formwork, cover plate, and tarpaulins. A fog machine is turned on to generate hot mist particles. The mist is evenly delivered to the entire first enclosed space through an outlet pipe for the first stage of in-form curing. Condensed water from the mist in the first enclosed space is collected in a water collection tank and recycled. S11, Second Stage Curing: From the stage when demoulding is completed to the stage when the formwork frame is lifted, a second enclosed space is formed by the formwork, cover plate, formwork corner tarpaulin, formwork seam connecting tarpaulin and main platform tarpaulin. The fog machine is turned on to produce hot mist particles, and the mist is evenly transported to all parts of the second enclosed space through the exhaust pipe for the second stage curing. The condensed water of the mist in the second enclosed space is collected in the water collection tank and recycled. S12. Third stage maintenance: After the formwork frame is lifted, a third enclosed space is formed by the hydraulic platform tarpaulin and the hanging platform tarpaulin. The fog machine is turned on to produce hot fog particles, and the fog is evenly transported to various parts of the third enclosed space through the exhaust pipe to complete the third stage of maintenance. The condensed water of the fog in the third enclosed space is collected through the water collection tank for recycling.

2. The steam curing method for hydraulic climbing formwork construction according to claim 1, characterized in that: Each tarpaulin is a three-layer stitched structure, with the outer two layers being tarpaulin and the middle layer being a fiberglass layer.

3. The steam curing method for hydraulic climbing formwork construction according to claim 1 or 2, characterized in that: The cover plate is made of polypropylene PP plate; the fog machine is made of ultrasonic plasma fog machine.

4. The steam curing method for hydraulic climbing formwork construction according to claim 1 or 2, characterized in that: In S1, both sides of the hydraulic platform tarpaulin are clamped on the climbing formwork tripod poles through buckles, and the top of the hydraulic platform tarpaulin is clamped on the supporting square tube through buckles, and the supporting square tube is fixed to the springboard of the main platform through bolts.

5. The steam curing method for hydraulic climbing formwork construction according to claim 1 or 2, characterized in that: In S2, the main platform tarpaulin is fixed to the lower end of the template by self-tapping screws.

6. The steam curing method for hydraulic climbing formwork construction according to claim 1 or 2, characterized in that: In S3, both sides of the hanging platform tarpaulin are clamped on the guide rails through buckles, and the top of the hanging platform tarpaulin is connected to the bottom of the hydraulic platform tarpaulin.

7. The steam curing method for hydraulic climbing formwork construction according to claim 1 or 2, characterized in that: In S4, the fixed steel plate is installed on the springboard of the frame by self-tapping screws, a connecting steel pipe is welded to the bottom of the water collection tank, the connecting steel pipe and the fixed steel plate are connected by bolts, the position of the water collection tank is adjusted and the bolts are tightened, a water-absorbing sponge is installed on the top of the water collection tank, and a drain pipe is installed at the bottom of the water collection tank.

8. The steam curing method for hydraulic climbing formwork construction according to claim 1 or 2, characterized in that: In S5, one side of the template corner tarpaulin is installed on the wooden beam web by self-tapping screws, and the other side is clamped on the corner template reinforcement plate by clips.

9. The steam curing method for hydraulic climbing formwork construction according to claim 1 or 2, characterized in that: In S6, the top of the template seam connected to the tarpaulin is clamped on the back rib by a buckle, and both sides of the template seam connected to the tarpaulin are respectively installed on the wooden beams by self-tapping screws.

10. The steam curing method for hydraulic climbing formwork construction according to claim 1 or 2, characterized in that: In S7, the cover plate is clamped on the stirrups by buckles.

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