High-pile wharf formwork supporting system and system and construction method

Abstract

The invention relates to the technical field of wharf construction, in particular to a high-pile wharf formwork supporting system and system and a construction method. The supporting system comprises a pile body and a supporting assembly. At least one side of the pile body is provided with an inner concave hole, a fishtail bolt is arranged in the inner concave hole, the tail portion of the fishtail bolt penetrates through the bottom of the inner concave hole and extends into the pile body, a connecting nut is arranged in the inner concave hole, the connecting nut is in threaded connection with at least part of the fishtail bolt left in the inner concave hole, the connecting nut is further in threaded connection with an outward extending structure, and the outward extending structure protrudes out of the pile body. And the connecting assembly is connected with the supporting assembly. According to the high-pile wharf formwork supporting system provided by the invention, the connecting nut and the extending structure can be taken out in a screwing mode under the condition that a pile body is less damaged; the fishtail bolt can be conveniently embedded in the pile body at low cost, so that connection between the fishtail bolt and the outside is cut off, the probability of formation of a corrosion channel connecting the inside and the outside of the pile body is reduced, and the service life of the pile body and the long-pile wharf is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of wharf construction, and in particular to a high-pile wharf formwork support system, system and construction method. Background Art

[0002] The high-pile wharf supports the superstructure through pile foundations, and transfers the load of the superstructure and the wharf surface to the deep ground. In the construction of the high-pile wharf, the pile foundation is constructed first, and after the pile foundation is constructed, the superstructure is constructed on the pile foundation; transverse and longitudinal beams are usually arranged between the superstructure and the pile foundation. The transverse and longitudinal beams mainly play the role of transferring the load of the superstructure and can connect each pile body.

[0003] Under some working conditions, the horizontal and vertical beams are constructed by cast-in-place. Cast-in-place construction requires the layout of formwork on the pile foundation in advance, and in order to maintain the relative stability of the formwork, the formwork needs to be fixedly connected to the pile body. In the existing connection scheme, bolts or steel plates are embedded in the pile body to facilitate the embedded parts to support the bottom formwork, and then support other formwork. The embedded parts are usually steel, one end of which extends into the interior of the pile body and the other end is exposed to the air or seawater, which can easily form a rust channel connecting the pile body. If not treated, the rust in the seawater or air can corrode the steel bars inside the pile body through the rust channel, causing the pile structure to fail and seriously affecting the service life of the pile body. In order to slow down the rust, complex anti-rust measures need to be adopted for the embedded parts, which greatly increases the construction cost. Summary of the invention

[0004] The purpose of the present invention is to overcome the problem in the background technology that embedded parts are prone to form rust channels, which affects the service life of the pile body or increases the construction cost, and to provide a high-pile dock formwork support system, system and construction method.

[0005] In a first aspect, the present invention provides a high-pile dock formwork support system, including a pile body and a support assembly;

[0006] At least one side of the pile body is provided with an inner concave hole, a fish bolt is provided in the inner concave hole, the tail of the fish bolt passes through the bottom of the inner concave hole and extends into the pile body, a connecting nut is provided in the inner concave hole, the connecting nut is threadedly connected to at least a part of the fish bolt remaining in the inner concave hole, the connecting nut is also threadedly connected to an overhanging structure, the overhanging structure protrudes from the pile body and is connected to the supporting assembly; a first connecting hole along the axial direction of the fish bolt is provided in the fish bolt, a second connecting hole connected to the first connecting hole is provided in the overhanging structure, the connecting bolt passes through the second connecting hole and is connected to the first connecting hole, and the nut of the connecting bolt abuts against the surface of the overhanging structure.

[0007] The present invention provides a high-pile dock formwork support system, wherein a connecting nut connects a fish bolt and an outrigger structure, the outrigger structure protrudes out of the pile body, and is convenient for connection with a support assembly, and the tail of the fish bolt is anchored in the pile body, which can provide a large anchoring force for fixing the support assembly; the connecting nut is threadedly connected to the fish bolt and the outrigger structure, and after use, the connecting nut and the outrigger structure can be removed by screwing with less damage to the pile body; a first connecting hole is provided in the fish bolt, and a second connecting hole is provided in the outrigger structure, and the first connecting hole and the second connecting hole are penetrated by the connecting bolt, On the basis of the connection with the connecting nut, the connection strength between the protruding structure and the fish bolt is increased, the length of the connecting nut can be shortened while meeting the connection strength requirements, the damage to the integrity and strength of the pile body is reduced, and it is also more convenient to remove the connecting nut; since the fish bolt is completely located in the inner concave hole, the inner concave hole can be sealed by grouting, and the fish bolt can be buried in the pile body conveniently and at low cost, thereby cutting off the connection between the fish bolt and the outside world, reducing the probability of formation of rust channels connecting the inside and outside of the pile body, and then slowing down the corrosion rate of the steel inside the pile body, and extending the service life of the pile body and the high-pile wharf.

[0008] Preferably, the connecting nut is a truncated cone nut, comprising a large end and a small end, wherein the small end is close to the bottom of the inner concave hole, and the large end is close to the opening of the inner concave hole.

[0009] The outer diameter of the large end is larger than that of the small end. The small end is installed toward the bottom of the inner concave hole to facilitate removal of the connecting nut.

[0010] Preferably, a connecting channel is provided in the connecting nut, and the connecting channel includes a first internal thread and a second internal thread distributed axially, the first internal thread is connected to the fish bolt, and the second internal thread is connected to the protruding structure.

[0011] Preferably, the large end surface is provided with a screwing groove, at least two of the screwing grooves are arranged circumferentially along the connecting channel, and one end of the screwing groove is connected to the connecting channel.

[0012] Preferably, the end surface of the large end is flush with the side surface of the pile body.

[0013] Preferably, the tail portion of the fish bolt has at least two forked tails opened from each other.

[0014] Preferably, the side wall of the first connecting hole is a threaded surface, the side wall of the second connecting hole is a smooth surface, part of the outer peripheral surface of the connecting bolt is provided with external threads, and the connecting bolt is threadedly connected to the first connecting hole.

[0015] Preferably, the support assembly comprises an end plate and a transverse support member, one end of the transverse support member is connected to the end plate, a through hole is provided on the end plate, the through hole is sleeved on the protruding structure, and the end plate is abutted against the side surface of the pile body; and:

[0016] The outwardly extending structure is a bolt member, and the nut of the outwardly extending structure squeezes and fixes the end plate;

[0017] or,

[0018] It also includes a locking piece, which is connected to the overhanging structure and presses and fixes the end plate.

[0019] Preferably, the support assembly also includes a longitudinal support member, which is mounted on at least two of the longitudinally spaced transverse support members; a reinforcement assembly is arranged between the transverse support member and the end plate, and the reinforcement assembly includes at least two vertical reinforcement members, which connect the end plate and the bottom of the transverse support member.

[0020] Preferably, the reinforcement assembly further comprises at least two transverse reinforcement members, wherein the transverse reinforcement members connect the end plates and the sides of the transverse support members.

[0021] Preferably, both ends of the lower portion of the end plate are provided with chamfers.

[0022] Chamfering can alleviate the stress concentration at both ends of the lower part of the end plate and reduce the probability of end plate damage.

[0023] In a second aspect, the present invention provides a high-pile wharf formwork support system, comprising a formwork and the high-pile wharf formwork support system as described above, wherein the formwork is at least partially supported by the support assembly.

[0024] The present invention provides a high-pile wharf formwork support system. Based on the high-pile wharf formwork support system as described above, a stable support structure can be installed at a predetermined position of the pile body to support the formwork, and then a beam body is cast on the pile body through the formwork; a connecting nut is used to connect the fish bolt and the extension structure. After the casting is completed, the connecting nut and the extension structure can be taken out by screwing with less damage to the pile body; since the fish bolt is completely located in the inner concave hole, the inner concave hole can be sealed by grouting, and the fish bolt can be conveniently buried in the pile body, thereby cutting off the connection between the fish bolt and the outside world, reducing the probability of formation of a rust channel connecting the inside and outside of the pile body, and then slowing down the corrosion rate of the steel inside the pile body, thereby extending the service life of the pile body and the high-pile wharf.

[0025] Preferably, the template includes two template units that are relative to each other and fixed in tension, the template units are supported on the supporting assembly, the template units include an inner mold arranged continuously along the longitudinal direction and a base member arranged at intervals along the longitudinal direction, the base member is located on the outside of the inner mold; a tension rod connects the base members on both sides.

[0026] In a third aspect, the present invention provides a method for constructing a longitudinal beam of a high-pile wharf, based on the high-pile wharf formwork support system as described above, wherein the pile body is a pile cap, and includes the following method:

[0027] S1. Assemble and connect the fish bolts, connecting nuts, connecting bolts and the overhanging structure; arrange the assembly at a preset position, cast the pile body, so that the fish bolts and connecting nuts are embedded in the pile body;

[0028] S2. Installing a support assembly on the overhanging structure, using the support assembly to construct the longitudinal beam;

[0029] After the construction of the longitudinal beam is completed, the support assembly is removed;

[0030] S3. Unscrew and remove the connecting bolt, unscrew and remove the overhanging structure, unscrew and remove the connecting nut;

[0031] S4. Grouting to seal the inner recessed hole space left by removing the protruding structure and the connecting nut.

[0032] The invention provides a method for constructing longitudinal beams of a high-pile wharf. Based on the formwork support system for the high-pile wharf as described above, a combination of fish bolts, connecting nuts, connecting bolts and an overhanging structure is cast simultaneously with the pile body, thereby improving the fitting force between the combination and the pile body and providing a stable foundation for the construction of the longitudinal beams. After the construction of the longitudinal beams is completed, the connecting bolts, the overhanging structure and the connecting nuts are removed by screwing, and the gaps in the inner concave holes are sealed by grouting, thereby cutting off the connection between the fish bolts and the outside world, reducing the probability of formation of rust channels connecting the inside and outside of the pile body, thereby slowing down the corrosion rate of the steel inside the pile body and extending the service life of the pile body and the high-pile wharf.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention provides a high-pile dock formwork support system, wherein a connecting nut connects a fish bolt and an outrigger structure, the outrigger structure protrudes out of the pile body, and is convenient for connection with a support assembly, and the tail of the fish bolt is anchored in the pile body, which can provide a large anchoring force for fixing the support assembly; the connecting nut is threadedly connected to the fish bolt and the outrigger structure, and after use, the connecting nut and the outrigger structure can be removed by screwing with less damage to the pile body; a first connecting hole is provided in the fish bolt, and a second connecting hole is provided in the outrigger structure, and the first connecting hole and the second connecting hole are penetrated by the connecting bolt, On the basis of the connection with the connecting nut, the connection strength between the protruding structure and the fish bolt is increased, the length of the connecting nut can be shortened while meeting the connection strength requirements, the damage to the integrity and strength of the pile body is reduced, and it is also more convenient to remove the connecting nut; since the fish bolt is completely located in the inner concave hole, the inner concave hole can be sealed by grouting, and the fish bolt can be buried in the pile body conveniently and at low cost, thereby cutting off the connection between the fish bolt and the outside world, reducing the probability of formation of rust channels connecting the inside and outside of the pile body, and then slowing down the corrosion rate of the steel inside the pile body, and extending the service life of the pile body and the high-pile wharf.

[0035] 2. The present invention provides a high-pile wharf formwork support system. Based on the high-pile wharf formwork support system as described above, a stable support structure can be installed at a predetermined position of the pile body to support the formwork, and then a beam body is cast on the pile body through the formwork; a connecting nut is used to connect the fish bolt and the protruding structure. After the casting is completed, the connecting nut and the protruding structure can be removed by screwing with less damage to the pile body; since the fish bolt is completely located in the inner recessed hole, the inner recessed hole can be sealed by grouting, and the fish bolt can be conveniently buried in the pile body, thereby cutting off the connection between the fish bolt and the outside world, reducing the probability of formation of a rust channel connecting the inside and outside of the pile body, and then slowing down the corrosion rate of the steel inside the pile body, thereby extending the service life of the pile body and the high-pile wharf.

[0036] 3. The present invention provides a method for constructing a longitudinal beam of a high-pile wharf. Based on the formwork support system for the high-pile wharf as described above, a combination of fish bolts, connecting nuts, connecting bolts and an overhanging structure is cast simultaneously with the pile body, which can improve the fitting force between the combination and the pile body and provide a stable foundation for the construction of the longitudinal beam. After the construction of the longitudinal beam is completed, the connecting bolts, the overhanging structure and the connecting nuts are removed by screwing, and the gaps in the inner concave holes are sealed by grouting, which can cut off the connection between the fish bolts and the outside world, reduce the probability of formation of rust channels connecting the inside and outside of the pile body, and then slow down the corrosion rate of the steel inside the pile body, thereby extending the service life of the pile body and the high-pile wharf. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic structural diagram of the high-pile wharf formwork support system of the present invention;

[0038] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0039] Figure 3 This is a schematic diagram of the structure of the connection assembly of the present invention (connection bolts omitted);

[0040] Figure 4 It is a structural schematic diagram of the connection assembly of the present invention;

[0041] Figure 5 A side view of the connecting nut of the present invention;

[0042] Figure 6 It is a front view of the connecting nut of the present invention;

[0043] Figure 7 A side view of the end plate and the transverse support member of the present invention;

[0044] Figure 8 A top view of the end plate and the transverse support member of the present invention;

[0045] Fig. 9 It is a front view of the end plate and the transverse support member of the present invention;

[0046] Fig.10 This is a schematic diagram of the structure of the template described in Example 2;

[0047] Fig.11 It is a top view of the high-pile wharf formwork support system of the present invention;

[0048] Fig.12 This is a schematic diagram of the structure of the high-pile wharf formwork support system during grouting and plugging according to the present invention;

[0049] Fig.13 for Fig.12 Enlarged view of part B in the middle.

[0050] Markings in the figure:

[0051] 1- Connect components;

[0052] 11-Fish bolt;

[0053] 111-fork tail; 112-first connecting hole;

[0054] 12-Extended structure;

[0055] 121- second connecting hole;

[0056] 13-Connecting nut;

[0057] 131-connecting channel; 132-large end; 133-small end; 134-screwing groove;

[0058] 14-Connecting bolts;

[0059] 2-Support assembly;

[0060] 21-end plate;

[0061] 211-through hole; 212-fixing nut; 213-lower flange; 214-web; 215-chamfer;

[0062] 22- transverse support member;

[0063] 221-vertical reinforcement; 222-lateral reinforcement;

[0064] 23- longitudinal support member;

[0065] 3- Template;

[0066] 31-Internal mold;

[0067] 32-base member;

[0068] 33-tie rods;

[0069] 4-Pile body;

[0070] 41-inner concave hole;

[0071] 5- Stringer. DETAILED DESCRIPTION

[0072] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0073] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0074] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0075] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0076] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0077] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0078] Example 1

[0079] See also Figure 1-Figure 10The present embodiment provides a high-pile dock formwork support system, comprising a pile body 4, a connection assembly 1 and a support assembly 2. The support assembly 2 is fixed to the pile body 4 through the connection assembly 1. The connection assembly 1 comprises a fish bolt 11, a connection nut 13 and an extension structure 12. An inner recessed hole 41 is provided at least on one side of the pile body 4. The fish bolt 11 is provided in the inner recessed hole 41. The tail of the fish bolt 11 passes through the bottom of the inner recessed hole 41 and extends into the pile body 4. A connection nut 13 is provided in the inner recessed hole 41. The connection nut 13 is threadedly connected to at least a portion of the fish bolt 11 remaining in the inner recessed hole 41. The connection nut 13 is also threadedly connected to the extension structure 12. The extension structure 12 protrudes out of the pile body 4 and is connected to the support assembly 2.

[0080] The pile body 4 can be a supporting pile structure of a high-pile wharf. The pile body 4 can be a pile foundation, such as an end-bearing pile, a friction pile, etc., or a pile cap located at the upper end of the pile foundation. The pile body 4 can be a concrete structure. The fish bolt 11 is buried inside the pile body 4. The fish bolt 11 can be preset in the pile body 4 before pouring the concrete of the pile body 4, so that the fish bolt 11 can be firmly embedded in the pile body 4.

[0081] The support assembly 2 is fixed to the pile body 4 through the connecting assembly 1. The support assembly 2 can be used to support at least part of the weight of the template 3 and transfer this part of the weight to the pile body 4 through the connecting assembly 1. The support assembly 2 can be a truss structure formed by a combination of steel materials. Its function is to form a support structure that can stably support the template 3 at a designed position around the pile body 4, so as to use the template 3 to cast in place above or on the side of the pile body 4 to form a beam body; another part of the weight of the template 3 can be directly supported by the pile body 4.

[0082] The connecting assembly 1 includes a fish bolt 11 and an overhanging structure 12 which are connected in a detachable manner. The detachable connection described in this embodiment means that when in a connected state, the fish bolt 11 and the overhanging structure 12 can form a connected whole and jointly support the weight of the supporting assembly 2 and the formwork 3; in the later stage of construction, the overhanging structure 12 can be separated from the fish bolt 11 in an embedded state, that is, the overhanging structure 12 can be removed from the pile body 4. At this time, an inner recessed hole 41 will be formed on the pile body 4 due to the removal of the overhanging structure 12 and the connecting nut 13. One end of the inner recessed hole 41 is connected to the outside world, and the other end is connected to the fish bolt 11. The inner recessed hole 41 can be sealed by grouting, so that the outer surface of the pile body 4 is still covered with concrete or mortar, thereby reducing or avoiding the formation of rust channels connecting the inside and outside of the pile body 4, slowing down the corrosion of the steel inside the pile body 4, and thus improving the service life of the pile body 4 and the high-pile wharf.

[0083] The fish bolt 11 can be a hard component made of steel. The fish bolt 11 is buried in the pile body 4, which means that the fish bolt 11 can be completely located inside the pile body 4 in the design state. On the one hand, by being buried in the pile body 4, a larger embedding force can be obtained to support the support assembly 2, the formwork 3 and the cast-in-place beam body. On the other hand, after the overhanging structure 12 is removed, the fish bolt 11 can be isolated from the outside by blocking the remaining holes to prevent the corrosion factors in the seawater from entering the pile body 4 with the fish bolt 11. One end of the overhanging structure 12 is detachably connected to the fish bolt 11, and the other end extends out of the pile body 4 to be connected to the support assembly 2. The overhanging structure 12 can be removed from the pile body 4 by screwing. In order to reduce the impact of the extraction process on the pile body 4, the cross-sectional size of the overhanging structure 12 can be gradually reduced in the direction away from the fish bolt 11, or remain unchanged.

[0084] The connecting nut 13 can be embedded in the pile body 4 along with the fish bolt 11 , and an end surface of one end of the connecting nut 13 is exposed from the pile body 4 to facilitate the removal of the connecting nut 13 .

[0085] In some embodiments, a first connecting hole 112 is provided in the fish bolt 11 along its axial direction, a second connecting hole 121 connected to the first connecting hole 112 is provided in the protruding structure 12, the connecting bolt 14 passes through the second connecting hole 121 and is connected to the first connecting hole 112, and the nut of the connecting bolt 14 abuts the surface of the protruding structure 12.

[0086] The first connecting hole 112 is arranged at the head of the fish bolt 11, and the second connecting hole 121 is arranged on the protruding structure 12. The first connecting hole 112 has an opening facing the inner recessed hole 41, and the opening is connected to one opening of the second connecting hole 121, and the other opening of the second connecting hole 121 faces the outside of the pile body 4; the first connecting hole 112 is arranged along the axial direction of the fish bolt 11, and the axial directions of the second connecting hole 121 and the first connecting hole 112 are colinear, and the connecting bolt 14 can extend into the second connecting hole 121 from the opening of the second connecting hole 121 toward the outside, and extend into the first connecting hole 112 from the opening of the first connecting hole 112 opposite to the other opening of the second connecting hole 121.

[0087] By having the connecting bolt 14 penetrate the protruding structure 12 and extend into the connecting fish bolt 11, the connection strength between the fish bolt 11 and the protruding structure 12 can be increased on the basis of the connecting nut 13; on the other hand, the threaded connection section between the connecting nut 13 and the fish bolt 11 and the protruding structure 12 can be reduced, the length of the connecting nut 13 can be shortened, the depth of the inner recessed hole 41 can be reduced, the damage to the integrity and strength of the pile body 4 by the inner recessed hole 41 can be reduced, and it is also more convenient to remove the connecting nut 13 while meeting the strength requirements.

[0088] Preferably, the nut of the connecting bolt 14 abuts against the surface of the protruding structure 12 , and the connecting bolt 14 is threadedly connected to the first connecting hole 112 , so that the connecting bolt 14 can connect the protruding structure 12 and the fish bolt 11 through the abutment and threaded connection of the nut.

[0089] The present embodiment provides a high-pile dock formwork support system, wherein a connecting nut 13 connects a fish bolt 11 and an overhanging structure 12, the overhanging structure 12 protrudes out of the pile body 4, and is convenient for connection with the support assembly 2, and the tail of the fish bolt 11 is anchored in the pile body 4, which can provide a large anchoring force for the fixation of the support assembly 2; the connecting nut 13 is threadedly connected to the fish bolt 11 and the overhanging structure 12, and after use, the connecting nut 13 and the overhanging structure 12 can be removed by screwing with less damage to the pile body 4; a first connecting hole 112 is provided in the fish bolt 11, and a second connecting hole 121 is provided in the overhanging structure 12, and the first connecting hole 112 and the second connecting hole 121 are penetrated by the connecting bolt 14 The second connecting hole 121 increases the connection strength between the protruding structure 12 and the fish bolt 11 on the basis of the connection with the connecting nut 13, and can reduce the length of the connecting nut 13 while meeting the connection strength requirement, thereby reducing the damage to the integrity and strength of the pile body 4 and making it easier to remove the connecting nut 13; since the fish bolt 11 is completely located in the inner recessed hole 41, the inner recessed hole 41 can be sealed by grouting, so that the fish bolt 11 can be buried in the pile body 4 conveniently and at low cost, thereby cutting off the connection between the fish bolt 11 and the outside world, reducing the probability of formation of rust channels connecting the inside and outside of the pile body 4, and thereby slowing down the corrosion rate of the steel inside the pile body 4, thereby extending the service life of the pile body 4 and the high-pile wharf.

[0090] Preferably, the side wall of the first connection hole 112 is a threaded surface, the side wall of the second connection hole 121 is a smooth surface, part of the outer peripheral surface of the connection bolt 14 is provided with external threads, and the connection bolt 14 is threadedly connected to the first connection hole 112 .

[0091] In one or more preferred embodiments, the connecting nut 13 is a truncated cone nut including a large end 132 and a small end 133 , wherein the small end 133 is close to the bottom of the inner recessed hole 41 and the large end 132 is close to the opening of the inner recessed hole 41 .

[0092] The outer diameter of the large end 132 is greater than the outer diameter of the small end 133 , and the small end 133 is installed toward the bottom of the inner recessed hole 41 , so as to facilitate the removal of the connecting nut 13 .

[0093] Preferably, the outer diameter of the connecting nut 13 gradually decreases from the large end 132 to the small end 133 , and the side wall of the inner recessed hole 41 fits with the outer wall of the connecting nut 13 .

[0094] Preferably, a connecting channel 131 is provided in the connecting nut 13 , and the connecting channel 131 includes a first internal thread and a second internal thread distributed axially, the first internal thread is connected to the fish bolt 11 , and the second internal thread is connected to the protruding structure 12 .

[0095] See also Figure 3-Figure 6 One end of the fish bolt 11 can be inserted into the connecting channel 131 and threadedly matched with the connecting nut 13, and one end of the protruding structure 12 can be inserted into the connecting channel 131 and threadedly matched with the connecting nut 13, so that the detachable connection between the fish bolt 11 and the protruding structure 12 is realized through the connecting nut 13; the connecting nut 13 is threadedly matched with the protruding structure 12, and the protruding structure 12 can be removed from the connecting nut 13 by screwing the protruding structure 12, and the connecting nut 13 is threadedly matched with the fish bolt 11, and the connecting nut 13 can be removed from the fish bolt 11 by screwing the connecting nut 13, so that the protruding structure 12 and the connecting nut 13 are more convenient to remove.

[0096] Further preferably, a screwing groove 134 is provided on the end surface of the large end 132 , and at least two screwing grooves 134 are arranged circumferentially along the connecting channel 131 , and one end of the screwing groove 134 is connected to the connecting channel 131 .

[0097] See also Figure 5-Figure 6 The screwing groove 134 is a groove-shaped structure recessed in the end surface of the large end 132. The screwing groove 134 can be engaged by a tool to assist in rotating the connecting nut 13. The number of the screwing grooves 134 is preferably two, and the two screwing grooves 134 are arranged opposite to each other. One end of the screwing groove 134 is connected to the side wall of the connecting channel 131. The two screwing grooves 134 arranged opposite to each other can be engaged by a strip tool.

[0098] Further preferably, the end surface of the large end 132 is flush with the side surface of the pile body 4 , which facilitates the subsequent installation of the end plate 21 .

[0099] Further preferably, the tail of the fish bolt 11 has at least two forked tails 111 opened from each other.

[0100] The opened fork tail 111 can increase the contact area between the fish bolt 11 and the concrete of the pile body 4 , thereby improving the anchoring strength between the fish bolt 11 and the pile body 4 , so that the fish bolt 11 can provide sufficient connection force to fix the support assembly to the pile body 4 .

[0101] In one or several preferred embodiments, the support assembly 2 includes an end plate 21 and a transverse support member 22, one end of the transverse support member 22 is connected to the end plate 21, a through hole 211 is provided on the end plate 21, the through hole 211 is sleeved on the protruding structure 12, and the end plate 21 is attached to the side of the pile body 4.

[0102] See also Figure 1 , Figure 2 , Figure 7-Figure 9 The end plate 21 is a hard plate, and the transverse support member 22 can be a steel section or a truss structure. A plurality of through holes 211 are provided on the end plate 21. The through holes 211 are sleeved on the protruding structure 12, and an external thread is provided on the protruding section of the protruding structure 12. A locking member 212, such as a fixing nut, is sleeved on the protruding section. The end plate 21 can be fastened to the outer surface of the pile body 4 by screwing the locking member 212.

[0103] In another embodiment, the protruding structure 12 is a bolt member, one end of which is provided with a nut. The protruding structure 12 can be screwed into the connecting nut 13 and the end plate 21 can be squeezed and fixed by the nut.

[0104] The number of the through holes 211 on the end plate 21 may be four, and the four through holes 211 are distributed in an array.

[0105] One end of the transverse support member 22 is fixedly connected to the end plate 21, and the transverse support member 22 is arranged to extend laterally in the horizontal direction to increase the transverse size of the support assembly 2 so as to more stably support the formwork 3; it should be noted that: in this embodiment, the direction parallel to the horizontal direction and perpendicular to the transverse direction is defined as the longitudinal direction, and the direction perpendicular to the horizontal direction is defined as the vertical direction; the fish bolts 11 and the overhanging structure 12 are distributed on both lateral sides of the pile body 4.

[0106] Preferably, the support assembly 2 further comprises a longitudinal support member 23 , and the longitudinal support member 23 is mounted on at least two longitudinally spaced transverse support members 22 .

[0107] See also Figure 1 , Fig.11 The longitudinal support member 23 can be an I-beam, and the longitudinal support member 23 is mounted on a plurality of transverse support members 22 spaced apart along the longitudinal direction. The formwork 3 can be located on the longitudinal support member 23, and the weight of the formwork 3 and the cast-in-place beam can be transferred to the transverse support member 22 through the longitudinal support member 23, and then transferred to the pile body 4; the longitudinal support members 23 can be symmetrically arranged on both sides of the pile body 4.

[0108] Preferably, a reinforcement assembly is provided between the transverse support member 22 and the end plate 21 , and the reinforcement assembly includes at least two vertical reinforcement members 221 , and the vertical reinforcement members 221 connect the end plate 21 and the bottom of the transverse support member 22 .

[0109] The vertical reinforcement 221 may be a right-angled triangle plate, one right-angled side of the vertical reinforcement 221 is in contact with the end plate 21 , and the other right-angled side is in contact with the bottom of the transverse support member 22 , thereby enhancing the vertical connection strength between the transverse support member 22 and the end plate 21 .

[0110] Further preferably, the reinforcement assembly further includes at least two transverse reinforcement members 222 , and the transverse reinforcement members 222 connect the end plates 21 and the sides of the transverse support members 22 .

[0111] The transverse reinforcement 222 may also be a right-angled triangle plate, one right-angled side of the transverse reinforcement 222 is in contact with the end plate 21 , and the other right-angled side is in contact with the side of the transverse support member 22 , thereby enhancing the longitudinal connection strength between the transverse support member 22 and the end plate 21 .

[0112] In some embodiments, the transverse support member 22 is an H-shaped steel. Figure 7-Figure 9 As shown, at least two vertical reinforcements 221 and at least two transverse reinforcements 222 are connected between the transverse support member 22 and the end plate 21. The vertical reinforcements 221 and the transverse reinforcements 222 are both hard plate members. The vertical reinforcements 221 are connected between the lower flange 213 of the transverse support member 22 and the end plate 21, which can increase the vertical bearing capacity of the transverse support member 22; the transverse reinforcements 222 are connected between the web 214 of the transverse support member 22 and the end plate 21, which can increase the longitudinal bending resistance of the transverse support member 22 and improve the stability of the transverse support member 22.

[0113] Further preferably, chamfers 215 are provided at both ends of the lower portion of the end plate 21 .

[0114] See also Fig. 9 The chamfer 215 can relieve stress concentration at both ends of the lower portion of the end plate 21 , thereby reducing the probability of damage to the end plate 21 .

[0115] Example 2

[0116] This embodiment provides a high-pile dock formwork support system, including a formwork 3 and the high-pile dock formwork support system as described in Embodiment 1, wherein the formwork 3 is at least partially supported by a support assembly 2 .

[0117] The present embodiment provides a high-pile wharf formwork support system. Based on the above high-pile wharf formwork support system, a stable support structure can be installed at a predetermined position of the pile body 4 to support the formwork 3, and then a beam body is cast on the pile body 4 through the formwork 3; a connecting nut 13 is used to connect the fish bolt 11 and the overhanging structure 12. After the pouring is completed, the connecting nut 13 and the overhanging structure 12 can be removed by screwing with less damage to the pile body 4; since the fish bolt 11 is completely located in the inner recessed hole 41, the inner recessed hole 41 can be sealed by grouting, so that the fish bolt 11 can be conveniently buried in the pile body 4, thereby cutting off the connection between the fish bolt 11 and the outside world, reducing the probability of formation of a rust channel connecting the inside and outside of the pile body 4, and then slowing down the corrosion rate of the steel inside the pile body 4, thereby extending the service life of the pile body 4 and the high-pile wharf.

[0118] Preferably, the template 3 includes two template units that are relative and fixed in tension, the template units are supported on the supporting assembly 2, the template units include an inner mold 31 arranged continuously along the longitudinal direction and a base member 32 arranged at intervals along the longitudinal direction, the base member 32 is located on the outside of the inner mold 31; the tension rod 33 connects the base members 32 on both sides.

[0119] See also Figure 1 , Figure 2 The template unit includes inner molds 31 arranged continuously in the longitudinal direction and base members 32 arranged at intervals. The inner side of the inner mold 31 defines a casting interval for casting and forming the longitudinal beam 5. The base member 32 is located outside the inner mold 31. The tie rods 33 connect the base members 32 on both sides to pull and fix the template units on both sides. The base member 32 can be a vertically arranged I-beam, and the inner mold 31 can be composed of a combination of section steels. The lower ends of the base member 32 and the inner mold 31 can be supported on the support assembly 2.

[0120] Example 3

[0121] This embodiment provides a high-pile wharf formwork support system, which is based on Example 2 and differs from Example 2 in that: the formwork 3 includes a bottom formwork and a side formwork, the bottom formwork is located on both sides of the upper surface of the pile body 4, the bottom formwork can form the bottom formwork of the longitudinal beam 5 together with the upper surface of the pile body 4, and the side formwork is located on the side of the bottom formwork; the support assembly 2 can support the bottom formwork, and then support the side formwork connected to the bottom formwork.

[0122] Example 4

[0123] This embodiment provides a method for constructing a longitudinal beam of a high-pile wharf, based on the high-pile wharf formwork support system described in Example 1, wherein the pile body 4 is a pile cap arranged on the pile foundation; the method includes the following steps:

[0124] S1. Assemble the fish bolts 11, the connecting nuts 13, the connecting bolts 14 and the overhanging structure 12, and set an isolation layer outside the connecting nut 13; arrange the assembly in a preset position, cast the pile 4, so that the fish bolts 11 and the connecting nuts 13 are embedded in the pile 4;

[0125] S2. Install the support assembly 2 on the overhanging structure 12, and use the support assembly 2 to construct the longitudinal beam 5;

[0126] After the construction of the longitudinal beam 5 is completed, the support assembly 2 is removed;

[0127] S3. Unscrew and remove the connecting bolt 14, unscrew and remove the overhanging structure 12, unscrew and remove the connecting nut 13;

[0128] S4. Grouting to seal the gap in the inner recessed hole 41 left by removing the overhanging structure 12 and the connecting nut 13, such as Fig.12 , Fig.13 shown.

[0129] The present embodiment provides a method for constructing a longitudinal beam of a high-pile wharf. Based on the formwork support system for the high-pile wharf as described above, a combination of fish bolts 11, connecting nuts 13, connecting bolts 14 and an overhanging structure 12 is cast simultaneously with the pile body 4, which can improve the fitting force between the combination and the pile body 4 and provide a stable foundation for the construction of the longitudinal beam 5. After the construction of the longitudinal beam 5 is completed, the connecting bolts 14, the overhanging structure 12 and the connecting nuts 13 are removed by screwing, and the gap in the inner concave hole 41 is sealed by grouting, which can cut off the connection between the fish bolts 11 and the outside world, reduce the probability of forming a rust channel connecting the inside and outside of the pile body 4, and thus slow down the corrosion rate of the steel inside the pile body 4, thereby extending the service life of the pile body 4 and the high-pile wharf.

[0130] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-pile wharf formwork support system, characterized in that: It comprises a pile body (4) and a support assembly (2); The pile body (4) is provided with an inner concave hole (41) on at least one side thereof, a fish bolt (11) is provided in the inner concave hole (41), a tail portion of the fish bolt (11) passes through the bottom of the inner concave hole (41) and extends into the pile body (4), a connecting nut (13) is provided in the inner concave hole (41), the connecting nut (13) is threadedly connected to at least a portion of the fish bolt (11) remaining in the inner concave hole (41), the connecting nut (13) is also threadedly connected to an overhanging structure (12), the overhanging structure (12) protrudes out of the pile body (4) and is connected to the supporting assembly (2); The fish bolt (11) is provided with a first connecting hole (112) along its axial direction, the protruding structure (12) is provided with a second connecting hole (121) connected to the first connecting hole (112), the connecting bolt (14) passes through the second connecting hole (121) and is connected to the first connecting hole (112), and the nut of the connecting bolt (14) abuts against the surface of the protruding structure (12).

2. The high-pile wharf formwork support system according to claim 1, characterized in that: The connecting nut (13) is a truncated cone nut, comprising a large end (132) and a small end (133), wherein the small end (133) is close to the bottom of the inner concave hole (41), and the large end (132) is close to the opening of the inner concave hole (41).

3. The high-pile wharf formwork support system according to claim 2, characterized in that: A connecting channel (131) is provided in the connecting nut (13), and the connecting channel (131) comprises a first internal thread and a second internal thread distributed axially, wherein the first internal thread is connected to the fish bolt (11), and the second internal thread is connected to the protruding structure (12).

4. The high-pile wharf formwork support system according to claim 3 is characterized by: The end surface of the large end (132) is provided with a screwing groove (134), at least two of the screwing grooves (134) are arranged circumferentially along the connecting channel (131), and one end of the screwing groove (134) is connected to the connecting channel (131); and / or, The end surface of the large end (132) is flush with the side surface of the pile body (4); and / or, The tail of the fish bolt (11) has at least two forked tails (111) that are spread apart from each other; and / or, The side wall of the first connecting hole (112) is a threaded surface, the side wall of the second connecting hole (121) is a smooth surface, part of the outer peripheral surface of the connecting bolt (14) is provided with external threads, and the connecting bolt (14) is threadedly connected to the first connecting hole (112).

5. The high-pile wharf formwork support system according to claim 1, characterized in that: The support assembly (2) comprises an end plate (21) and a transverse support member (22), one end of the transverse support member (22) is connected to the end plate (21), a through hole (211) is provided on the end plate (21), the through hole (211) is sleeved on the protruding structure (12), and the end plate (21) is close to the side surface of the pile body (4); and: The protruding structure (12) is a bolt member, and the nut of the protruding structure (12) squeezes and fixes the end plate (21); or, It also comprises a locking piece (212), wherein the locking piece (212) is connected to the overhanging structure (12) and is used to squeeze and fix the end plate (21).

6. The high-pile wharf formwork support system according to claim 5, characterized in that: The support assembly (2) further comprises a longitudinal support member (23), wherein the longitudinal support member (23) is mounted on at least two longitudinally spaced transverse support members (22); A reinforcement component is provided between the transverse support member (22) and the end plate (21), wherein the reinforcement component comprises at least two vertical reinforcement members (221), and the vertical reinforcement members (221) connect the end plate (21) and the bottom of the transverse support member (22).

7. The high-pile wharf formwork support system according to claim 6, characterized in that: The reinforcement assembly further comprises at least two transverse reinforcement members (222), wherein the transverse reinforcement members (222) connect the end plate (21) and the side of the transverse support member (22); and / or, Both ends of the lower portion of the end plate (21) are provided with chamfers (215).

8. A high-pile wharf formwork support system, characterized in that: It comprises a formwork (3) and a high-pile wharf formwork support system as claimed in any one of claims 1 to 7, wherein the formwork (3) is at least partially supported by the support assembly (2).

9. The high-pile wharf formwork support system according to claim 8, characterized in that: The template (3) comprises two template units which are opposite to each other and fixed in tension, and the template units are supported on the support assembly (2). The template units comprise an inner mold (31) which is arranged continuously along the longitudinal direction and a base member (32) which is arranged at intervals along the longitudinal direction, and the base member (32) is located on the outer side of the inner mold (31); a tension rod (33) connects the base members (32) on both sides.

10. A method for constructing longitudinal beams of a high-pile wharf, characterized in that: Based on the high-pile wharf formwork support system according to any one of claims 1 to 7, the pile body (4) is a pile cap, comprising the following method: S1. Assemble and connect the fish bolt (11), the connecting nut (13), the connecting bolt (14) and the overhanging structure (12); arrange the assembly at a preset position, cast the pile body (4), and embed the fish bolt (11) and the connecting nut (13) in the pile body (4); S2. Installing a support assembly (2) on the overhanging structure (12), and using the support assembly (2) to construct a longitudinal beam (5); After the construction of the longitudinal beam (5) is completed, the support assembly (2) is removed; S3. Unscrew and remove the connecting bolt (14), unscrew and remove the overhanging structure (12), and unscrew and remove the connecting nut (13); S4. Grouting to seal the gap in the inner recessed hole (41) left by removing the protruding structure (12) and the connecting nut (13).

Images