Construction method of secondary structure pouring and vibrating integrated device

Abstract

The invention discloses a construction method of a secondary structure pouring and vibrating integrated device, which comprises the following construction steps: step 1, binding reinforcing steel bars to form a reinforcing steel bar component of a secondary structure, arranging a secondary structure template and a shaping assembly on the outer side of the reinforcing steel bar component, and forming a concrete pouring cavity; secondly, a pouring guide pipe is installed; thirdly, a slurry overflow pipe is installed; fourthly, concrete is poured; fifthly, vacuumizing is conducted, the grout overflow pipe is covered with a sealing cover, air in a concrete cavity which is not poured is pumped out through a compression film of the shaping assembly, and concrete is continuously poured and vibrated; sixthly, the compression state of the compression film is kept, remaining air in the concrete cavity continues to be pumped out through a vacuumizing component of the grout overflow pipe, concrete continues to be poured, and pouring is stopped until the pouring pressure reaches the designed pouring pressure; and 7, the sealing cover of the grout overflow pipe is removed, concrete is continuously poured, the grout overflow pipe is gradually pulled out, and pouring is finished when the concrete flows out of the grout overflow pipe.

Description

Technical Field

[0001] The invention relates to the technical field of building structure concrete construction, and in particular to a construction method of a secondary structure casting and vibrating integrated device. Background Art

[0002] Secondary structure pouring is a crucial component of construction projects, primarily involving the concrete construction of non-load-bearing walls (such as structural columns and lintels), partitions, stairways, and infill walls. In recent years, advancements in construction technology and improvements in industry standards have led to improvements in the quality and efficiency of secondary structure construction. However, some prominent issues remain: 1. Hollowing, honeycombing, and roughening caused by insecure formwork, insufficient vibration, and inadequate curing are serious problems, with honeycombing occurring at a rate of 15% to 20%, making exposed rebar particularly prominent in areas with dense reinforcement. 2. Improper treatment of the connection points between the secondary structure and the primary structure (such as structural columns and lintels) impacts overall seismic performance. Existing secondary structures (such as the tops of structural columns) have inadequate concrete pouring, creating rainwater infiltration channels. Excessive verticality (>8mm) in secondary structures leads to uneven finishes in later installations. 3. Regarding efficiency, secondary structure construction is primarily manual, with a low degree of mechanization. Furthermore, due to disconnections between design and construction, operator errors, and material issues, rework rates are high, extending construction timelines, reducing efficiency, and increasing costs.

[0003] The main reasons for the appearance problems, leakage risks, and localized insufficient bearing capacity caused by concrete quality defects in secondary structures are: 1. Secondary structure components (such as structural columns) are typically small and tall, making it difficult to insert vibrators into the base of the columns, resulting in incomplete vibration of the concrete at the base; 2. The opening of the concrete formwork at the top of the secondary structure is designed to be located in the upper position, or holes are opened in the upper concrete formwork to allow for the placement of concrete conduits, which cannot be sealed during top pouring. This results in an incomplete pour or damage to the integrity of the top concrete, affecting the integrity of the structure. Therefore, solving the problems of difficult vibration in narrow spaces and incomplete top concrete pouring is a key issue that needs to be addressed in secondary structure pouring. Summary of the Invention

[0004] At least one of the purposes of the present invention is to provide a construction method for a secondary structure casting and vibration integrated device in order to overcome the problems existing in the above-mentioned prior art, which can not only solve the problem of difficult vibration in a narrow space, but also solve the problem of loose concrete casting on the top, thereby improving the overall construction quality.

[0005] In order to achieve the above objectives, the technical solutions adopted by the present invention include the following aspects.

[0006] A construction method for a secondary structure casting and vibrating integrated device includes a secondary structure formwork for arrangement outside the bottom of the secondary structure, and a shaping assembly arranged on top of the secondary structure formwork. A casting conduit for casting the secondary structure is arranged on the upper portion of the secondary structure formwork, and an overflow pipe is arranged on the shaping assembly. Two secondary structure formworks and two shaping assemblies are arranged on opposite sides of the steel reinforcement member of the secondary structure and between the bottom surface and the top beam plate. When the secondary structure is cast using the secondary structure casting and vibrating integrated device, the following construction steps are included: Step 1: Tie the steel bars to form a steel bar component of the secondary structure, and arrange a secondary structure formwork for pouring the secondary structure main structure and a shaping component for pouring the top part of the secondary structure on the outside of the steel bar component. The secondary structure formwork and the shaping component are sealed and spliced ​​together, so that the bottom surface, the top beam plate, the secondary structure formwork, the shaping component and the masonry wall on the outside of the steel bar component form a concrete pouring cavity. The shaping component includes a shaping formwork and a compression membrane sealed and coated on the shaping formwork. The shaping formwork is equipped with a grouting pipe. Step 2: Install the pouring conduit, pass the end of the pouring conduit equipped with the vibrator through the pouring port of the secondary structure formwork, and extend it to the bottom of the concrete pouring cavity; Step 3: Install the overflow pipe. Pass the overflow pipe equipped with a sealing cover and a vacuum component at one end through the overflow port and install it on the shaping component. Let one end of the overflow pipe extend into the concrete pouring cavity and the other end communicate with the outside. Step 4: pouring concrete, using a concrete pump to pour concrete into the concrete pouring cavity through the pouring conduit, starting from the bottom, and vibrating with a vibrator while pouring, until the secondary structure concrete exceeds the height of the pouring conduit on the secondary structure formwork and then stops pouring; Step 5: Vacuum, close the sealing cover on the overflow pipe, and extract the air in the unpoured concrete cavity through the compression membrane of the shaping component, and continue pouring and vibrating the concrete; Step 6: Keep the compression film in the compressed state, continue to extract the remaining air in the concrete cavity through the vacuum component of the overflow pipe, and continue pouring concrete until the pouring pressure reaches the designed pouring pressure and then stop pouring; Step 7: Remove the sealing cover of the overflow pipe, continue pouring concrete, and gradually pull out the overflow pipe. The pouring is completed when the concrete flows out of the overflow pipe.

[0007] Preferably, in step one, two pieces of the secondary structure formwork are vertically installed on the bottom surface, with both ends of the two secondary structure formwork extending to the outside of the masonry wall, and are tied and fixed to the outside of the steel member of the secondary structure through multiple vertically arranged side-by-side tie assemblies. During the installation of the secondary structure formwork, a spacer is simultaneously installed between the secondary structure formwork and the steel member.

[0008] Preferably, in the step 1, during the process of installing the shaping component between the secondary structure formwork and the top beam plate, the compression membrane of the shaping component is sealed and arranged around the outer side of the shaping formwork, and the inner side of the shaping formwork is the side close to the steel bar member; the shaping formwork includes a shaping portion and a connecting portion, and an L-shaped groove is provided at the bottom of the shaping portion; When installing the shaping component, the following steps are included: Step a1: Installing a second sealing gasket on the top of the secondary structure template on one side; Step a2: Installing the compression membrane on the position on the second sealing gasket for laying; Step a3: Installing the shaping template on this side so that the bottom of the shaping template seals and presses the compression membrane on the top of the secondary structure template, and at the same time, the top of the shaping template is attached to the lower side of the top beam plate; Step a4: Installing the shaping template on the other side in the same way.

[0009] Preferably, in the step one, a compression cavity is formed when the compression membrane of the shaping component is arranged on the outside of the shaping template, an exhaust port is provided on the compression membrane, an exhaust hole corresponding to the exhaust port is provided on the shaping template, and a vacuum component is pre-equipped at the exhaust port.

[0010] Preferably, in the step one, a sealing gasket is installed at the gap between the pressing part of the compression membrane and the top beam plate, and a sealing tape is installed at the connection between the shaping component and the secondary structure template. During installation, the shaping template on one side is first bonded to the inner side of the secondary structure template using sealing tape, and then the shaping template on this side is placed on the lower side of the top beam plate. Before the shaping template on the other side is installed and attached to the lower side of the top beam plate, the sealing tape on the other side is installed. Finally, the fixing component is installed at the connection between the shaping component and the secondary structure template, and is located on the outside of the secondary structure template.

[0011] Preferably, in the step 2, the vibrator is fixedly installed on the first end of the casting conduit by a stainless steel clamp in advance, and a plurality of elastic gaskets are installed on the outside of the vibrator, so that the plurality of elastic gaskets are arranged circumferentially along the outer wall of the casting conduit; a casting port is opened in advance on the secondary structure template, the first end of the casting conduit is passed through the casting port and extended into the bottom of the concrete casting cavity, and the second end of the casting conduit is extended into the concrete delivery pump.

[0012] Preferably, in step three, the overflow pipe includes overflow pipe one and overflow pipe two, and overflow port one and overflow port two are pre-opened on the shaping component, overflow port two is close to the top of the shaping component and located above overflow port one, the first end of overflow pipe one is passed through overflow port one and extended into the concrete pouring cavity, so that the second end of overflow pipe one is higher than the first end and close to the top of the shaping component; overflow pipe two is horizontally installed at overflow port two, so that the first end of overflow pipe two is passed through overflow port two and extended into the concrete cavity.

[0013] Preferably, in step five, the sealing cover 1 is closed so that the overflow pipe 1 is threadedly connected to the sealing cover 1 and maintains good sealing, the sealing cover 2 is closed so that the overflow pipe 2 is threadedly connected to the sealing cover 2 and maintains good sealing, the vacuum component on the compression film is opened, and the air in the uncast concrete pouring cavity is discharged through the vacuum component, so that the compression film shrinks and fills the gaps between the shaping component and the secondary structure template, and between the shaping component and the top beam plate.

[0014] Preferably, in step six, the vacuum pumping component is closed to keep the compression film in a compressed state, the sealing cover 1 on the overflow pipe 1 and the sealing cover 2 on the overflow pipe 2 are kept closed, and the air in the concrete pouring cavity is continued to be extracted from the overflow pipe 1 and the overflow pipe 2 to further tighten the compression film, and after completion, the overflow pipe 1 and the overflow pipe 2 are sealed again by the sealing cover 1 and the sealing cover 2 respectively.

[0015] Preferably, in step seven, the secondary structure concrete is continued to be poured. When the secondary structure concrete is poured to the top beam and squeezed into the overflow pipe 1 and the overflow pipe 2, the sealing cover 1 and the sealing cover 2 are opened. When the concrete is squeezed into the overflow pipe 1 and the overflow pipe 2 and overflows, the overflow pipe 1 and the overflow pipe 2 are slowly pulled out. The pouring is completed when the concrete flows out of the second end of the overflow pipe 1 and the second end of the overflow pipe 2.

[0016] In summary, due to the adoption of the above technical solution, the present invention has at least the following beneficial effects: 1. The construction method of the integrated secondary structure pouring and vibrating device can solve the problem of difficult vibration in narrow spaces. The vibrator of the device is set at one end of the pouring conduit extending into the concrete pouring cavity of the secondary structure. It can be extended into the bottom of the secondary structure to be poured along with the pouring conduit, and vibrate and compact the concrete at the bottom of the secondary structure; 2. The construction method of the integrated device for pouring and vibrating the secondary structure can also solve the problem of loose concrete pouring on the top. The shaping component on the top of the device connects the top beam and the secondary structure shaping template. The shaping component adopts a construction method with a compression membrane. At the same time, during the pouring process, the pouring conduit is arranged below the top of the secondary structure. A vibrator is arranged at the end of the pouring conduit to vibrate while pouring. In addition, an overflow pipe is provided on the top of the secondary structure to make the top of the secondary structure in a closed state during pouring. By vacuuming the compression membrane and vacuuming the end of the overflow pipe, the air in the area to be poured is further extracted, so that the concrete pouring cavity can be fully filled with concrete, thereby avoiding loose concrete pouring on the top of the secondary structure, achieving pouring continuity, ensuring structural integrity, and improving the overall construction quality. 3. By setting up overflow pipe 1 and overflow pipe 2, and there is a height difference between overflow pipe 1 and overflow pipe 2, and vacuuming and pouring are completed in stages through overflow pipe 1 and overflow pipe 2, it can fully ensure that the concrete on the top of the secondary structure is completely sealed, the pouring is dense, the integrity of the top concrete is ensured, and the integrity of the structure is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a secondary structure casting and vibrating integrated device according to an exemplary embodiment of the present invention.

[0018] Figure 2 This is a structural schematic diagram of the integrated secondary structure casting and vibration device from another perspective.

[0019] Figure 3 It is a structural diagram of the finalized component.

[0020] Figure 4 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0021] Figure 5 yes Figure 1 Enlarged schematic diagram of point B in the middle.

[0022] Figure 6 yes Figure 1 Enlarged schematic diagram of point C in the middle.

[0023] Figure 7 It is a construction flow chart of the secondary structure casting and vibrating integrated device according to an exemplary embodiment of the present invention.

[0024] Markings in the figure: 1-secondary structure formwork, 2-forming assembly, 21-forming formwork, 211-forming part, 212-connecting part, 22-compression membrane, 221-pressing part, 3-casting duct, 4-overflow pipe, 41-overflow pipe one, 41-overflow pipe two, 5-bottom surface, 6-reinforcement member, 7-tie assembly, 71-tie rod, 72-tie rod connector, 8-top beam, 9-concrete pouring cavity, 10-pad, 11-compression cavity, 12-sealing gasket one, 13-sealing gasket two, 14-sealing tape, 15-elastic gasket, 16-fixing assembly, 161-clamping plate, 162-connecting cross bar, 163-connecting longitudinal bar, 164-adjusting lock, 17-concrete pump, 18-vibrator, 19-masonry wall. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments to make the purpose, technical solutions and advantages of the present invention more clearly understood. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. Example 1

[0027] This embodiment shows the structure of the secondary structure casting and vibrating integrated device. Figure 1 and Figure 2 Taking a structural column with a square cross section as an example, the structural column is a masonry structural column, and the two sides of the structural column are masonry walls 19 constructed in advance. The secondary structure pouring and vibrating integrated device includes a secondary structure template 1, a shaping component 2, a pouring conduit 3 and an overflow pipe 4. For ease of understanding, the number of secondary structure templates 1 and shaping components 2 is set to two. The front and rear sides of the structural column ( Figure 2A secondary structure template 1 is set on each outer side of the secondary structure template 1 (the secondary structure template 1 referred to here may be composed of multiple templates in the actual construction process), and a fixed component 2 is set on the upper part of the secondary structure template 1. The two secondary structure templates 1 and the two fixed components 2 are set between the masonry walls 19 on both sides. In the secondary structure to be poured, a steel bar member 6 is arranged. The secondary structure is also located between the bottom surface 5 and the top beam 8 of the building structure. The two secondary structure templates 1 and the two fixed components 2 are set between the masonry walls 19 on both sides. The forming component 2, the bottom surface 5, the top beam 8 and the masonry walls 19 on both sides of the secondary structure together form a rectangular concrete pouring cavity 9. The forming component 2 is located on the top of the secondary structure template 1. One end of the pouring conduit 3 passes through the secondary structure template 1 and extends into the concrete pouring cavity 9, and pours from the bottom upward, vibrating while pouring, and at the same time lifting the pouring conduit 3 upward. One end of the overflow pipe 4 passes through the forming template (21) of the forming component 2 and extends into the concrete pouring cavity 9, and the other end leads to the external environment space.

[0028] The secondary structure formwork 1 adopts conventional formwork such as wooden formwork, steel formwork or aluminum formwork, and two pieces of the secondary structure formwork 1 are vertically arranged on the bottom surface 5, and the two ends of the two secondary structure formworks 1 extend to the outside of the masonry wall 19 (the width of the two ends of the secondary structure formwork covering the masonry wall is at least 50 mm), and the two pieces of the secondary structure formwork 1 and the masonry wall 19 form a rectangular parallelepiped with an upper opening, and the two pieces of the secondary structure formwork 1 are fixed by a tie assembly 7, and a plurality of the tie assemblies 7 are arranged along the length direction of the secondary structure formwork 1. The number of the tie assemblies 7 is determined according to the length and cross-sectional area of ​​the secondary structure (the amount of concrete poured), and the tie assembly 7 adopts the template tie rod commonly used in the concrete pouring process, including a tie rod and a tie rod connector, and the tie rod includes a tie horizontal rod and a tie vertical rod, and the tie horizontal rod and the tie vertical rod are connected by a tie rod connector, and a pair of tie rods are horizontally opened on the masonry wall 19 on both sides of the structural column. Corresponding wall holes are provided, and multiple groups of wall holes are provided along the height direction of the masonry wall 19 (two wall holes at the same horizontal height are one group). The number of tie assemblies 7 corresponds to the number and position of the wall holes on the masonry wall 19. The two tie longitudinal rods respectively pass through the corresponding wall holes on the masonry wall 19 on both sides of the structural column (double rows of tie longitudinal rods can also be provided), and both ends of the tie longitudinal rods extend out of the masonry wall 19. The two tie transverse rods are respectively clamped on the outside of the two secondary structure formworks 1, and the two ends of the tie transverse rod are respectively connected to the end in the same direction of the two tie longitudinal rods through tie rod connectors (double rows of tie transverse rods can also be provided); multiple pads 10 are provided between the inner side of the secondary structure formwork 1 (the side close to the steel bar component 6) and the outer side of the steel bar component 6. The pads 10 are used to prevent the steel bar component 6 from deforming and moving to form a partition when the secondary structure concrete is poured, so as to avoid the problem of exposed steel bars.

[0029] like Figure 1-Figure 3 As shown, the shaping component 2 includes a shaping template 21 and a compression membrane 22. The shaping component 2 is customized. The size of the shaping template 21 is customized according to the size of the secondary structure, and the hardness of the shaping template 21 meets the concrete pouring and molding of the secondary structure. The shaping template 21 preferably adopts a plastic template with a certain elasticity. The shaping template 21 is integrally formed and adopts a plate structure or a structure in which the cross-section is an overall right-angled L-shaped structure. An exhaust hole (not shown in the figure) can be selectively opened on the shaping template 21. The exhaust hole diameter (φ≤8mm) is small; the compression membrane 22 is surrounded by the shaping template 21, and the air in the concrete pouring cavity 9 is discharged through the compression membrane 22. The connection between the compression membrane 22 and the shaping template 21 maintains good sealing, so that vacuum can be drawn through the compression membrane 22. The compression membrane 22 and the shaping template 21 form a compression cavity 11. Since there is a gap between the shaping template 21 and the top beam plate 8 When the height of the concrete in the concrete pouring cavity 9 exceeds the height of the secondary structure formwork 1, the air in the compression cavity 11 is extracted, and the compression membrane 22 is pressed against the shaping formwork 21, and a vacuum is formed in the concrete pouring cavity 9. The compression membrane 22 is customized according to the shaping formwork 21, and an air extraction port (not shown in the figure) is opened on the compression membrane 22, and a vacuum extraction component is set at the air extraction port. When the vacuum is drawn through the air extraction port, the air in the concrete pouring cavity 9 is discharged through the gap or the exhaust through-hole on the shaping formwork 21. The vacuum extraction component is used to extract the air in the concrete pouring cavity 9. Before vacuuming, the overflow pipe 4 is sealed and closed by the sealing cover and is in a closed state. After the compression membrane 22 is pressed against the shaping formwork 21, the concrete pouring cavity 9 continues to be poured, and then the air is continued to be extracted through the vacuum extraction component on the overflow pipe 4, and the concrete pouring continues, thereby ensuring that the concrete in the later stage of the secondary structure pouring is dense.

[0030] The shaping template 21 adopts an L-shaped structure or a rectangular structure. When the L-shaped structure is adopted, it includes a shaping portion 211 and a connecting portion 212. The cross section of the shaping portion 211 is rectangular. The right side of the shaping portion 211 ( Figure 3 Left and right direction) is the inner side of the shaping template 21, the left side of the shaping portion 211 ( Figure 3 The bottom of the shaping portion 211 is provided with an L-shaped groove, which is formed by the outer side of the shaping portion 211 (from the left side to the right side) being concave (or formed by the outer side of the bottom of the shaping portion 211 being concave toward the top), and the cross section of the L-shaped groove is a right-angled L-shape, and the opening of the L-shaped groove faces left ( Figure 3 Left and right directions), the bottom of the shaping portion 211 is the bottom of the shaping template 21, and the L-shaped groove is used to install the clamping plate 161.

[0031] The cross section of the connecting portion 212 is a right-angled trapezoid. The connecting portion 212 includes a connecting surface 2121 that fits the top beam plate 8 and an inclined surface 2122 on the opposite side of the connecting surface 2121. It also includes a first plane 2123 and a second plane 2124 that are parallel to each other. The first plane 2123 and the second plane 2124 are respectively located on both sides of the connecting surface 2121. The length of the first plane 2123 is smaller than the length of the second plane 2124. The outside of the first plane 2123 is arranged with a pressing portion 221 of the compression film 22. The pressing portion 221 is arranged on the top beam plate 8. The second plane 2124 is integrally connected to the left side of the shaping portion 211. The shaped portion 211 is connected to the left side of the upper portion of the shaped portion 211, and the portion of the left side of the shaped portion 211 that is not connected to the connecting portion 212 is the outer side of the shaped portion 211; when the connecting portion 212 is connected to the shaped portion 211, the connecting surface 2121 of the connecting portion 212 is flush with the top of the shaped portion 211, and together constitutes the top of the shaped template 21, and is installed on the top beam 8, the first plane 2123 and the inclined surface 2122 of the connecting portion 212, and the outer side of the shaped portion 211 together constitute the outer side of the shaped template 21; the exhaust through hole on the shaped template 21 can be selectively opened in the shaped portion 211, and is located below the connecting portion 212 ( Figure 3 Up and down direction), and is located above the L-shaped groove at the bottom of the shaping portion 211 ( Figure 3 up and down direction).

[0032] refer to Figure 3 The compression film 22 is arranged on the outside of the shaping template 21 (the compression film 22 can also be set outside the shaping template 21. When set, the compression film 22 is located on the outside of the shaping template 21 and an air extraction port is opened. The compression film 22 is located on the inside of the shaping template 21 and an opening is left, so that the compression cavity 11 formed by the compression film 22 and the shaping template 21 is connected to the concrete pouring cavity 9. In order to ensure the vacuum effect, the air extraction port is preferably corresponding to the exhaust through hole on the shaping template; or the compression film is set outside the shaping template and connected to the inside of the shaping template, and is opened at the shaping template. An unsealed area is formed on the inner side of the template. At this time, the exhaust hole is opened in the unsealed area). The compression membrane 22 is arranged on the outside of the shaping template 21, including a pressing portion 221 arranged on the outside of the first plane 2123 of the connecting portion 212, and a portion extending in sequence on the first plane 2123, the inclined surface 2122, the outside of the shaping portion 211, the L-shaped groove and the joint between the shaping template 21 and the secondary structure template 1. The pressing portion 221 is sealed and installed on the top beam plate 8, and is also sealed and installed at the joint between the shaping template 21 and the secondary structure template 1.

[0033] The shaping component 2 is arranged on the top of the secondary structure template 1. As one of the preferred embodiments, with reference to 4, the top of the shaping template 21 of the shaping component 2 is fitted with the top beam 8, and the compression membrane 22 also includes a pressing portion 221 arranged on the outside of the connecting portion 212 of the shaping template 21. The pressing portion 221 is used to fit on the top beam 8. In order to ensure the sealing of the compression cavity 11 formed between the compression membrane 22 and the shaping template 21, a sealing gasket 12 is also provided at the pressing portion 221. The sealing gasket 12 is used to make the pressing portion 221 of the compression membrane 22 and the top beam 8 close to each other. The top beam 8 is tightly sealed, and the compression membrane 22 can completely seal the concrete casting cavity 9 from the outside, thereby ensuring the vacuum effect. The sealing gasket 12 can use a sealing strip. After the compression membrane 22 is pressed on the sealing gasket 12, a clamping strip is arranged on the outside to fix it. During subsequent vacuuming, when the pressure in the inner concrete casting cavity 9 is reduced (until vacuum), the flexible compression membrane 22 can automatically shrink and stick to the top beam 8 and the shaping template 21. Similarly, at the joint part between the compression membrane 22 and the masonry walls on both sides, a sealing gasket 12 and a pressure strip are also provided for sealing; refer to Figure 5 A sealing gasket 13 is provided between the compression membrane 22 at the bottom of the shaping template 21 of the shaping component 2 and the top of the secondary structure template 1. The sealing gasket 13 is used to seal the shaping component 2 and the secondary structure template 1, so that when the vacuum is drawn through the compression cavity 11, the concrete pouring cavity 9 is a closed cavity, thereby ensuring that the secondary structure concrete is poured densely.

[0034] The inner side of the connection between the shaping component 2 and the secondary structure template 1 is also provided with a sealing tape 14 (refer to Figure 5 ), the shaping portion 211 is flush with the inner casting surface of the secondary structure formwork 1, and the sealing tape 14 is simultaneously connected to the shaping portion 211 and the inner casting surface of the secondary structure formwork 1 in a fitting manner. By providing the sealing tape 14, the shaping component 2 and the secondary structure formwork 1 are sealed and spliced, ensuring that the secondary structure concrete poured after vacuuming is dense and free of bubbles.

[0035] The connection between the shaping component 2 and the secondary structure template 1 is also provided with a fixing component 16 (refer to Figure 5), the fixing component 16 is used to tighten the fixed component 2 and the secondary structure template 1, the fixing component 16 includes a clamping plate 161, a connecting cross bar 162, an adjusting lock buckle 164 and a connecting longitudinal bar 163, the clamping plate 161 is arranged on the outside of the intersection of the shaping template 21 and the secondary structure template 1, the upper part of the clamping plate 161 is arranged at the L-shaped groove of the shaping template 21, and the lower part of the clamping plate 161 is arranged on the outside of the secondary structure template 1, the top of the clamping plate 161 is in contact with a right angle side of the L-shaped groove, and the inner side of the clamping plate 161 is in contact with the other right angle side of the L-shaped groove (when the compression film is arranged outside the shaping template or on the outside of the shaping template, the top of the clamping plate is pressed tightly against the compression film at a right angle side of the L-shaped groove, and the inner side of the clamping plate is in contact with the compression film at the other right angle side of the L-shaped groove) a through hole is opened on the clamping plate 161, and the through hole is along the The length direction is opened. As one of the preferred embodiments, the length of the clamping plate 161 is not less than the width of the secondary structure template 1; the length of the connecting longitudinal rod 163 is greater than the width of the secondary structure template 1, and the connecting cross bar 162 passes through the through hole of the clamping plate 161. The connecting cross bar 162 can be a screw or a steel pipe. The masonry wall 19 on both sides of the secondary structure is horizontally provided with two corresponding through-wall holes. The two connecting cross bars 162 respectively pass through the corresponding through-wall holes 2 on the masonry wall 19 on both sides of the structural column (a double row of connecting longitudinal bars can also be provided), and after passing through the through hole of the clamping plate 161, the connecting cross bar 162 is connected to the connecting longitudinal rod 163 by adjusting the lock buckle 164, so that the connecting longitudinal rod 163 is pressed and fixed on the clamping plate 161. Both ends of the connecting longitudinal rod extend out of the masonry wall 19, and the two ends of the connecting cross bar are respectively in the same direction as the two connecting longitudinal rods 163 ( Figure 2 One end of the connecting rod (in the left and right directions) is connected via an adjustable lock 164, which is used to tighten the connecting crossbar 162 and securely connect the clamping plate 161 to the secondary structure formwork 1 and the shaping assembly 2 under the action of the connecting longitudinal rod 163. The aforementioned tie assembly 7 and the fixing fixture 16 can adopt the same structure. The tie rods include a tie crossbar and a tie longitudinal rod. The tie longitudinal rod is equivalent to the connecting crossbar 172 and is used to pass through the masonry wall 19. The tie crossbar is equivalent to the connecting longitudinal rod 173 and is used to clamp and fix the secondary structure formwork 1. The tie rod connector uses an adjustable lock 164 to connect and fix the tie crossbar and tie longitudinal rod.

[0036] The secondary structure formwork 1 is provided with a pouring port (not shown in the figure), and the distance between the pouring port and the top beam plate 8 is preferably 50 to 80 cm. The first end of the pouring conduit 3 passes through the pouring port and extends into the concrete pouring cavity 9. When pouring concrete, pour from the bottom, vibrate while pouring, and lift the pouring conduit 3 upwards. The second end of the pouring conduit 3 is connected to the concrete delivery pump 17 (refer to Figure 1 ), concrete pump 17 uses low power to pump concrete; Figure 6 A vibrator 18 is provided at the first end of the casting conduit 3. The vibrator 18 is a waterproof and explosion-proof vibrator. The vibrator 18 is fixed to the first end of the casting conduit 3 by a stainless steel clamp. A plurality of elastic gaskets 15 are provided on the outside of the vibrator 18. The plurality of elastic gaskets 15 are arranged circumferentially along the outer wall of the casting conduit 3. The elastic gaskets 15 are used to prevent the vibrator 18 from colliding with the steel member 6 and being damaged when working.

[0037] The overflow pipe 4 includes an overflow pipe 1 41 and an overflow pipe 2 42 (refer to Figure 1 ), the shaping component 2 is provided with an overflow port 1 and an overflow port 2 (not shown in the figure) for installing the overflow pipe 1 41 and the overflow pipe 2 42 respectively, the overflow port 2 is close to the top of the shaping component 2 and is located above the overflow port 1; the first end of the overflow pipe 1 41 passes through the overflow port 1 and extends into the concrete pouring cavity 9, the first end of the overflow pipe 1 41 is located below the overflow port 1, the second end of the overflow pipe 1 41 is located above the overflow port 1 and close to the top of the shaping template 21 of the shaping component 2, the first end and the second end of the overflow pipe 1 41 are opposite to each other, and the second end of the overflow pipe 1 41 is also equipped with a sealing cover 1 (not shown in the figure) for sealing the overflow pipe 1 (41), through the shaping component When the compression film 22 of 2 is vacuumed, the sealing cover 1 is closed, so that the overflow pipe 1 41 is threadedly connected to the sealing cover 1 and maintains good sealing performance; the overflow pipe 2 42 is horizontally arranged at the overflow port 2, the first end of the overflow pipe 2 42 passes through the overflow port 2 and extends into the concrete pouring cavity 9, the second end of the overflow pipe 2 42 extends in a direction away from the shaping component 2 and communicates with the external environment, the first end and the second end of the overflow pipe 2 42 are opposite, and the second end of the overflow pipe 2 42 is also equipped with a sealing cover 2 (not shown in the figure) for sealing the overflow pipe 1 (41). When the compression film 22 of the shaping component 2 is vacuumed, the sealing cover 2 is closed, so that the overflow pipe 2 42 is threadedly connected to the sealing cover 2 and maintains good sealing performance. Example 2

[0038] This embodiment shows the construction method of the secondary structure casting and vibrating integrated device. Figure 7 The construction flow chart thereof is shown. The construction method of the secondary structure casting and vibrating integrated device specifically includes the following steps: Step 1: Tie the steel bars to form a steel bar component 6 of the secondary structure, and arrange a secondary structure formwork 1 for pouring the secondary structure main structure and a shaping component 2 for pouring the top part of the secondary structure on the outside of the steel bar component 6. The secondary structure formwork 1 and the shaping component 2 are sealed and spliced ​​together, so that the bottom surface 5, the top beam 8, the secondary structure formwork 1, the shaping component 2 and the masonry wall 19 on the outside of the steel bar component 6 form a concrete pouring cavity 9. The shaping component 2 includes a shaping template 21 and a compression membrane 22 sealed and covered on the shaping template 21. The shaping template 21 is equipped with a grouting pipe 4; Two secondary structure templates 1 are vertically installed on the bottom surface 5, with both ends of the two secondary structure templates 1 extending to the outside of the masonry wall 19, and are tied and fixed to the outside of the steel member 6 of the secondary structure through multiple vertically arranged tie assemblies 7. During the installation of the secondary structure template 1, a spacer 10 is simultaneously installed between the secondary structure template 1 and the steel member 6; During the process of installing the shaping component 2 between the secondary structure template 1 and the top beam plate 8, the compression membrane 22 of the shaping component 2 is sealed and arranged around the outside of the shaping template 21 to form a compression cavity 11. The compression membrane 22 is provided with an air extraction port, and the shaping template 21 is provided with an exhaust through hole corresponding to the air extraction port. The air extraction port is pre-equipped with a vacuum pumping component; the inner side of the shaping template 21 is the side close to the steel bar member 6; the shaping template 21 includes a shaping portion 211 and a connecting portion 212. The bottom of the shaping portion 211 is provided with an L-shaped groove. When installing the shaping component 2, the following steps are included: Step a1: Install a sealing gasket 13 on the top of the secondary structure template 1 on one side; Step a2: Install the compression film 22 on the sealing gasket 13 for laying; Step a3: Install the shaping template 21 on this side so that the bottom of the shaping template 21 seals and presses the compression film 22 onto the top of the secondary structure template 1, and the top of the shaping template 21 is attached to the underside of the top beam 8; Step a4: Install the shaping template 21 on the other side in the same way; Install the sealing gasket 12 at the gap between the pressing part 213 of the compression film 22 and the top beam plate 8, and install the sealing tape 14 at the connection between the shaping component 2 and the secondary structure template 1. During installation, first bond the shaping template 21 on one side to the inner side of the secondary structure template 1 with the sealing tape 14, then place the shaping template 21 on this side on the lower side of the top beam plate 8, and then install the sealing tape 14 on the other side before installing the shaping template 21 on the lower side of the top beam plate 8. Finally, install the fixing component 16 at the connection between the shaping component 2 and the secondary structure template 1 and on the outer side of the secondary structure template 1. Step 2: Install the pouring conduit 3, pass one end of the pouring conduit 3 equipped with the vibrator 18 through the pouring port of the secondary structure formwork 1, and extend it into the bottom of the concrete pouring cavity 9; fix the vibrator 18 to the first end of the pouring conduit 3 in advance using a stainless steel clamp, and install multiple elastic gaskets 15 on the outside of the vibrator 18, so that the multiple elastic gaskets 15 are arranged along the circumference of the outer wall of the pouring conduit 3; a pouring port is pre-opened on the secondary structure formwork 1, pass the first end of the pouring conduit 3 through the pouring port and extend it into the bottom of the concrete pouring cavity 9, and extend the second end of the pouring conduit 3 into the concrete delivery pump 17; Step 3: Install the overflow pipe 4. Install the overflow pipe 4, which is equipped with a sealing cover and a vacuum component at one end, through the overflow port and on the shaping component 2, so that one end of the overflow pipe 4 extends into the concrete pouring cavity 9 and the other end is connected to the outside world; the overflow pipe 4 includes an overflow pipe 1 41 and an overflow pipe 2 42. The shaping component 2 is pre-opened with an overflow port 1 and an overflow port 2. The overflow port 2 is close to the top of the shaping component 2 and is located above the overflow port 1. The first end of the overflow pipe 1 41 is passed through the overflow port 1 and extended into the concrete pouring cavity 9, so that the second end of the overflow pipe 1 41 is higher than the first end and close to the top of the shaping component 2; the overflow pipe 2 42 is horizontally installed at the overflow port 2, so that the first end of the overflow pipe 2 42 passes through the overflow port 2 and extends into the concrete cavity 9; Step 4: pouring concrete, using a concrete pump 17 to pour concrete into the concrete pouring cavity 9 through the pouring conduit 3, starting from the bottom, and vibrating with a vibrator 18 while pouring, until the secondary structure concrete exceeds the height of the pouring conduit 3 on the secondary structure formwork 1 and then stops pouring; Step 5: Vacuuming, closing the sealing cover on the overflow pipe 4, and extracting the air in the uncast concrete cavity 9 through the compression membrane 22 of the shaping component 2, and continuing to cast concrete and vibrate; closing the sealing cover 1, so that the overflow pipe 1 41 is threadedly connected to the sealing cover 1 and maintains a good seal, closing the sealing cover 2, so that the overflow pipe 2 42 is threadedly connected to the sealing cover 2 and maintains a good seal, opening the vacuuming component on the compression membrane 22, and extracting the air in the uncast concrete casting cavity 9 through the vacuuming component, so that the compression membrane 22 shrinks and fills the gaps between the shaping component 2 and the secondary structure formwork 1, and between the shaping component 2 and the top beam plate 8; Step 6: Keep the compression film 22 in the compressed state, continue to extract the remaining air in the concrete cavity 9 through the overflow pipe 4, and continue pouring concrete until the pouring pressure reaches the designed pouring pressure and then stop pouring; The preferred implementation of this step is: close the vacuum pumping component to keep the compression film 22 in a compressed state, keep the sealing cover 1 on the overflow pipe 41 and the sealing cover 2 on the overflow pipe 22 in a closed and sealed state, and at the same time extract the air in the concrete pouring cavity 9 from the overflow pipe 1 41 and the overflow pipe 2 42 to further compress the compression film 22 and continue pouring concrete. Since the height of the overflow pipe 1 41 is lower, the concrete first flows into the overflow pipe 1 41. When the overflow pipe 1 41 cannot be vacuumed, close the vacuum pumping component on the overflow pipe 1 41, continue to vacuum from the overflow pipe 2 42, and continue pouring concrete. When the overflow pipe 2 42 cannot be vacuumed, close the vacuum pumping component on the overflow pipe 2 42, and continue pouring concrete until the pouring pressure reaches the designed pouring pressure and then stop. Step seven: Remove the sealing cover of the overflow pipe 4, continue pouring concrete, and gradually pull out the overflow pipe 4, and end the pouring when the concrete flows out of the overflow pipe 4; in this step, after pouring concrete until the pouring pressure reaches the designed pouring pressure, open the sealing cover of the overflow pipe 4 (including sealing cover one of overflow pipe one 41 and sealing cover two of overflow pipe two 42), and continue pouring the secondary structure concrete. When the secondary structure concrete is poured to the top beam 8 and squeezed into the overflow pipe one 41 and the overflow pipe two 42, observe that the concrete is squeezed into the overflow pipe one 41 and the overflow pipe two 42 and overflows, then slowly pull out the overflow pipe one 41 and the overflow pipe two 42, and the pouring is ended when the concrete flows out of the second end of the overflow pipe one 41 and the second end of the overflow pipe two 42.

[0039] It is worth noting that when pulling out the overflow pipe 41 and the overflow pipe 2 42, the pulling-out length of the overflow pipe 41 and the overflow pipe 2 42 should be marked first, and the range of the overflow pipe 41 and the overflow pipe 2 42 being pulled out and out of the secondary structure casting body shall prevail.

[0040] Another preferred embodiment is to install switches on overflow pipe 1 (41) and overflow pipe 2 (42) for opening and closing them, respectively. When poured concrete flows out of the second ends of overflow pipe 1 (41) and overflow pipe 2 (42), the switches are closed, cutting off the slurry flow when the concrete is fully filled, thus preventing excessive slurry flow. After the secondary structure is solidified and the mold is removed, excess concrete in overflow pipe 1 (41) and overflow pipe 2 (42) is removed and polished, and then plastered.

[0041] By setting up overflow pipe 1 41 and overflow pipe 2 42, and there is a height difference between overflow pipe 1 41 and overflow pipe 2 42, and vacuuming and pouring are completed in stages through overflow pipe 1 41 and overflow pipe 2 42, it can be fully ensured that the concrete on the top of the secondary structure is completely sealed, the pouring is dense, the integrity of the top concrete is ensured, and the integrity of the structure is ensured.

[0042] The above description is only a detailed description of the specific embodiments of the present invention, and does not limit the present invention. Various substitutions, modifications and improvements made by those skilled in the relevant art without departing from the principles and scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A construction method for a secondary structure casting and vibrating integrated device, characterized in that: The secondary structure casting and vibrating integrated device comprises a secondary structure template (1) for being arranged outside the bottom of the secondary structure, and a shaping component (2) arranged on the top of the secondary structure template (1); a casting conduit (3) for casting the secondary structure is arranged on the upper part of the secondary structure template (1); an overflow pipe (4) is arranged on the shaping component (2); two pieces of the secondary structure template (1) and two pieces of the shaping component (2) are arranged on the relative outsides of the steel bar component (6) of the secondary structure and are located between the bottom surface (5) and the top beam plate (8); when the secondary structure is cast using the secondary structure casting and vibrating integrated device, the following multiple construction steps are included: Step 1: Tie the steel bars to form a steel bar component (6) of the secondary structure, and arrange a secondary structure template (1) for pouring the secondary structure main structure and a shaping component (2) for pouring the top part of the secondary structure on the outside of the steel bar component (6), the secondary structure template (1) and the shaping component (2) are sealed and spliced ​​together, so that the bottom surface (5), the top beam plate (8), the secondary structure template (1), the shaping component (2) and the masonry wall (19) on the outside relative to the steel bar component (6) form a concrete pouring cavity (9), the shaping component (2) includes a shaping template (21) and a compression membrane (22) sealed and covered on the shaping template (21), and the shaping template (21) is provided with a grouting pipe (4); Step 2: Install the pouring conduit (3), pass one end of the pouring conduit (3) equipped with the vibrator (18) through the pouring port of the secondary structure template (1), and extend it into the bottom of the concrete pouring cavity (9); Step 3: Install the overflow pipe (4), pass the overflow pipe (4) equipped with a sealing cover and a vacuum pumping component at one end through the overflow port and install it on the shaping component (2), so that one end of the overflow pipe (4) extends into the concrete pouring cavity (9) and the other end is connected to the outside; Step 4: pouring concrete, using a concrete delivery pump (17) to pour concrete into the concrete pouring cavity (9) through the pouring conduit (3), starting from the bottom, vibrating with a vibrator (18) while pouring, and stopping pouring until the poured secondary structure concrete exceeds the height of the pouring conduit (3) on the secondary structure formwork (1); Step 5: Vacuuming, closing the sealing cover on the overflow pipe (4), and extracting the air in the uncast concrete cavity (9) through the compression membrane (22) of the shaping component (2), and continuing to cast concrete and vibrate; Step 6: Keep the compression film (22) in a compressed state, continue to extract the remaining air in the concrete cavity (9) through the vacuum pumping component of the overflow pipe (4), and continue pouring concrete until the pouring pressure reaches the designed pouring pressure and then stop pouring; Step 7: Remove the sealing cover of the overflow pipe (4), continue pouring concrete, and gradually pull out the overflow pipe (4). The pouring is completed when the concrete flows out of the overflow pipe (4).

2. The construction method of the secondary structure casting and vibrating integrated device according to claim 1, characterized in that: In the step 1, two secondary structure templates (1) are vertically installed on the bottom surface (5), with both ends of the two secondary structure templates (1) extending to the outside of the masonry wall (19) and being fastened and fixed to the outside of the steel reinforcement member (6) of the secondary structure by a plurality of vertically arranged tie assemblies (7). During the installation of the secondary structure template (1), a spacer (10) is simultaneously installed between the secondary structure template (1) and the steel reinforcement member (6).

3. The construction method of the secondary structure casting and vibrating integrated device according to claim 1, characterized in that: In the step 1, during the process of installing the shaping component (2) between the secondary structure template (1) and the top beam plate (8), the compression membrane (22) of the shaping component (2) is sealed and arranged on the outside of the shaping template (21), and the inside of the shaping template (21) is the side close to the steel bar member (6); the shaping template (21) includes a shaping portion (211) and a connecting portion (212), and an L-shaped groove is provided at the bottom of the shaping portion (211); When installing the shaping component (2), the following steps are included: step a1: installing the second sealing gasket (13) on the top of the secondary structure template (1) on one side; step a2: installing the compression film (22) on the position on the second sealing gasket (13) for laying; step a3: installing the shaping template (21) on this side so that the bottom of the shaping template (21) seals and presses the compression film (22) on the top of the secondary structure template (1), and at the same time, the top of the shaping template (21) is attached to the lower side of the top beam plate (8); step a4: installing the shaping template (21) on the other side in the same manner.

4. The construction method of the secondary structure casting and vibrating integrated device according to claim 3, characterized in that: In the step 1, the compression film (22) of the shaping component (2) is arranged around the outside of the shaping template (21) to form a compression cavity (11), the compression film (22) is provided with an air extraction port, the shaping template (21) is provided with an exhaust hole corresponding to the air extraction port, and the air extraction port is pre-equipped with a vacuum pumping component.

5. The construction method of the secondary structure casting and vibrating integrated device according to claim 4, characterized in that: In the step 1, a sealing gasket 1 (12) is installed at the gap between the pressing portion (213) of the compression film (22) and the top beam plate (8), and a sealing tape (14) is installed at the connection between the shaping component (2) and the secondary structure template (1). During the installation, the shaping template (21) on one side is first bonded to the inner side of the secondary structure template (1) using the sealing tape (14), and then the shaping template (21) on this side is placed on the lower side of the top beam plate (8). The shaping template (21) on the other side is then installed and attached to the lower side of the top beam plate (8), and the sealing tape (14) on the other side is installed. Finally, the fixing component (16) is installed at the connection between the shaping component (2) and the secondary structure template (1) and is located on the outer side of the secondary structure template (1).

6. The construction method of the secondary structure casting and vibrating integrated device according to claim 1, characterized in that: In the second step, a vibrator (18) is fixedly installed on the first end of the pouring conduit (3) by a stainless steel clamp in advance, and a plurality of elastic gaskets (15) are installed on the outside of the vibrator (18), so that the plurality of elastic gaskets (15) are arranged along the circumference of the outer wall of the pouring conduit (3); a pouring port is opened in advance on the secondary structure template (1), the first end of the pouring conduit (3) is passed through the pouring port and extended into the bottom of the concrete pouring cavity (9), and the second end of the pouring conduit (3) is extended into the concrete delivery pump (17).

7. The construction method of the secondary structure casting and vibrating integrated device according to claim 4, characterized in that: In the step 3, the overflow pipe (4) includes overflow pipe 1 (41) and overflow pipe 2 (42), and overflow port 1 and overflow port 2 are pre-opened on the shaping component (2). Overflow port 2 is close to the top of the shaping component (2) and is located above overflow port 1. The first end of overflow pipe 1 (41) is passed through overflow port 1 and extended into the concrete casting cavity (9), so that the second end of overflow pipe 1 (41) is higher than the first end and close to the top of the shaping component (2); overflow pipe 2 (42) is horizontally installed at overflow port 2, so that the first end of overflow pipe 2 (42) is passed through overflow port 2 and extended into the concrete cavity (9).

8. The construction method of the secondary structure casting and vibrating integrated device according to claim 7, characterized in that: In the step five, the sealing cover 1 is closed so that the overflow pipe 1 (41) is threadedly connected to the sealing cover 1 and a good seal is maintained. The sealing cover 2 is closed so that the overflow pipe 2 (42) is threadedly connected to the sealing cover 2 and a good seal is maintained. The vacuum pumping component on the compression film (22) is opened, and the air in the uncast concrete casting cavity (9) is discharged through the vacuum pumping component, so that the compression film (22) shrinks and fills the gaps between the shaping component (2) and the secondary structure template (1), and between the shaping component (2) and the top beam plate (8).

9. The construction method of the secondary structure casting and vibrating integrated device according to claim 8, characterized in that: In step six, the vacuuming component is closed to keep the compression film (22) in a compressed state, the sealing cover 1 on the overflow pipe 1 (21) and the sealing cover 2 on the overflow pipe 2 (22) are opened, and the air in the concrete pouring cavity (9) is continuously discharged from the overflow pipe 1 (41) and the overflow pipe 2 (42), so that the compression film (22) is further compressed, and after completion, the overflow pipe 1 (41) and the overflow pipe 2 (42) are sealed again through the sealing cover 1 and the sealing cover 2 respectively.

10. The construction method of the secondary structure casting and vibrating integrated device according to claim 9, characterized in that: In the step seven, the secondary structure concrete is continued to be poured. When the secondary structure concrete is poured to the top beam plate (8) and squeezed to the overflow pipe 1 (41) and the overflow pipe 2 (42), the sealing cover 1 and the sealing cover 2 are opened. When the concrete is squeezed to the overflow pipe 1 (41) and the overflow pipe 2 (42) and overflows, the overflow pipe 1 (41) and the overflow pipe 2 (42) are slowly pulled out. The pouring is completed when the concrete flows out of the second end of the overflow pipe 1 (41) and the second end of the overflow pipe 2 (42).

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