Water landscape plank road combining prefabricated square piles and cast-in-place concrete components

Abstract

The invention discloses a water landscape plank road combining prefabricated square piles with cast-in-place concrete components, including a plank road platform; the plank road platform includes a plurality of cast-in-place concrete beams and slabs; a frame beam formed by intersecting short concrete cast-in-place beams and long concrete cast-in-place beams is arranged below the cast-in-place concrete beams and slabs; the cross-section of the frame beams where the short concrete cast-in-place beams and the long concrete cast-in-place beams intersect is fixed to the prefabricated square piles through a pile top column cap; the pile top column cap is a reinforced concrete inverted trapezoidal platform structure; an inverted trapezoidal steel cage is arranged on the corresponding outer side of the pile top column cap; a plurality of vertical anchoring bars are arranged in the pile top column cap corresponding to the pile body auxiliary bars and the pile body main bars of the corresponding prefabricated square piles; the upper end of the vertical anchoring bar is anchored in the corresponding short concrete cast-in-place beam, and the lower end is welded and fixed to the top flange steel plate of the prefabricated square pile. The invention avoids the safety problems caused by underwater cast-in-place concrete construction, reduces the damage to the water environment, simplifies the construction process, and improves the progress of the construction project.

Description

Technical Field

[0001] The invention relates to the technical field of water plank road construction, in particular to a water landscape plank road combining prefabricated square piles and cast-in-place concrete components. Background Art

[0002] With the rapid development of the economy and society, the continuous advancement of urbanization and the increasing exchanges with the outside world, the deterioration of the ecological environment has become increasingly prominent. Modern urban garden landscape design organically combines urbanization construction and the natural environment, and has gradually become an important factor in balancing the urban environment. Residents' material lives are becoming increasingly affluent, but in the face of an increasingly fast pace of life, more and more negative emotions are gradually accumulating. By integrating garden landscape design into life to reduce people's life pressure, and residents' demand for landscape and water-friendly is constantly increasing, a large number of diversified leisure water-friendly or water-based buildings created by water spaces, such as plank roads and bridges, have begun to appear in garden construction projects.

[0003] Nowadays, the concept of protecting nature and ecological environment is being paid close attention to by countries around the world. The concept of sustainable development with respect for the natural environment and maintaining ecological balance as the core is gaining popularity. Under such an international background, the ecological design projects of garden landscape have exploded, and the design and construction technology level of garden landscape ecological projects has also increased day by day, giving rise to a large number of excellent works with the characteristics of the times, and the market competition has become increasingly fierce. In this way, the design and construction technical solutions need to comprehensively consider the economy, appreciation (including simplicity, harmony, rhythm, timeliness, individuality, etc.) of landscape design, as well as environmental protection, safety, sustainable development, etc., and the construction party has more stringent requirements for the project schedule. As a crucial item in landscape garden construction projects, the water landscape plank road has an unignorable impact on the quality and construction period of the project. Among them, the design of the water plank road is the leader of the entire plank road design link, and plays a decisive role in the use, cost, shape, and construction period of the entire project.

[0004] The common structural forms of existing water bridges or plank roads are wooden plank roads, steel structure plank roads, and cast-in-place concrete plank roads. Among them, wooden plank roads have a smaller span and are suitable for small lakes or urban tributaries, and have greater limitations in use. Steel plank roads with larger spans are generally equipped with cast-in-place piles or galvanized steel piles, etc. The construction process is complicated, and if a curved bridge is required, the component specificity is high, which will lead to excessively high construction costs. The more widely used cast-in-place concrete plank roads have higher technical requirements for the construction units, and require preliminary enclosure work such as cofferdam construction and pumping backfilling. There is a large amount of cast-in-place concrete construction in the water, which poses certain safety hazards.

[0005] The following is a detailed explanation of the structural connection schemes and advantages and disadvantages of the widely applicable cast-in-place concrete water boardwalks and steel boardwalks.

[0006] In most water construction projects, the structure of the water plank road is generally a cast-in-place reinforced concrete beam-slab structure on the upper part, and a precast pile with a cast-in-place cap foundation on the lower part. The precast pile with a cast-in-place cap foundation can be built in the river bank or on the river bank. The cast-in-place reinforced concrete beam-slab structure is located above the water surface. In the cast-in-place concrete water plank road structure scheme, the precast pile is first connected to the cast-in-place cap foundation and then to the cast-in-place concrete column on the upper part. The upper load is transmitted to the connection node of the column-cap-pile through the beam-column node, and then to the foundation bearing layer.

[0007] In water engineering projects, although the cofferdam is additionally pumped and desilted in the early stage of the project, the construction work is still carried out under the condition of water and silt. It is difficult to ensure the construction quality and subsequent maintenance of cast-in-place piles, and the construction period is long. In order to ensure the construction period, economy and safety of the project, the water plank road project generally adopts prefabricated square piles or pipe piles for construction. Therefore, conventional water plank roads are mostly cast-in-place concrete structures, and the pile foundation is formed by the joint action of prefabricated piles-caps-soil to bear the upper plank road platform load transmitted by the cast-in-place concrete columns. At the same time, due to one column and one pile, a connecting beam should be set in the two main axis directions of the pile top.

[0008] The commonly used cast-in-place concrete structure of the water boardwalk is a cast-in-place reinforced concrete beam-slab type with an elevation above the water surface; the cast-in-place platform is connected to the cast-in-place pedestal through frame columns, and cast-in-place connecting beams are used in both directions between the pedestals to form an overall force, and finally the force is transmitted to the foundation through the connection between the pedestals and precast piles.

[0009] The cast-in-place concrete plank road on water is usually constructed under the condition of water and silt. The upper cast-in-place platform structure needs to be built with full scaffolding and formwork in the water. When the cast-in-place cap foundation is located under the riverbed, it is also necessary to build the cap formwork in the silt with water. The waterproof structure problem in the existing connection nodes between precast piles and cast-in-place caps is very noteworthy. In current engineering practice, although a large number of waterproof measures are adopted, it is still easy to form seepage channels between steel bars and concrete or cap plates and precast piles, affecting the durability of piles and cap plates. Therefore, the cast-in-place reinforced concrete cap foundation is connected to the precast square piles with formwork in the riverbed silt layer. Because large machinery and protective measures are difficult to put in place in a water environment, it is easy for silt or water to penetrate into the connection seam between the precast piles and the cast-in-place caps, resulting in no effective connection between the piles and the caps, resulting in safety problems.

[0010] In order to solve the water seepage problem at the connection of the pile foundation, some water plank road projects have another foundation pedestal method, that is, to place the cast-in-place pedestal foundation above the riverbed. This method avoids the silt layer of the riverbed, but it is still under the water surface, and water seepage is very likely to occur. If the pedestal continues to be lifted above the water surface to avoid water and mud seepage, but in order to control the total cost of water projects, the water plank road is generally not high from the water surface. Adding another pedestal and additional connecting beams in this limited space will appear very bloated. The exposure of the pedestal on the water surface will affect the viewing of the entire plank road and destroy the overall shape and harmony of the plank road. At present, no water plank road project has adopted this architectural shape.

[0011] The characteristics of water construction in water conservancy projects are large project costs, among which the cost of temporary construction measures is much higher than that of ordinary land projects, high technical difficulty, many construction hazards, many unforeseen factors in water surface construction, and complex influences of the hydraulic environment. The foundation connection method of the water landscape bridge is affected by the foundation type and superstructure type of the landscape bridge. The use of cast-in-place method for foundation and platform construction has many disadvantages, such as long construction period, high temporary cost of construction measures, greater water pollution, easy damage to surrounding pipelines such as cables and gas in the river, difficult to ensure construction quality, low industrialization level, and low labor efficiency.

[0012] In addition, with the increasing technological level of steel processing, in recent years, a large number of water construction projects with more complex shapes have begun to adopt steel structures in order to meet the aesthetics, reduce the temporary measures such as templates, reduce construction risks, and speed up construction progress. In order to solve some of the problems existing in the construction of cast-in-place concrete plank roads mentioned above, reduce the inconvenience and hidden dangers of water construction, and reduce the amount of water formwork, many water landscape plank roads adopt steel structures.

[0013] The steel structure of the current water plank road is a steel beam with a concrete composite slab, with an elevation above the water surface; the steel platform is connected to the cast-in-place pedestal through steel pipe columns, and cast-in-place connecting beams are used in both directions between the pedestals to form an overall force, and finally the force is transmitted to the foundation through the prefabricated piles and the pedestals. The foundation of the prefabricated steel structure plank road is basically the same as that of the cast-in-place concrete plank road in Plan 1, mainly because of the addition of steel column feet, which is more than the cast-in-place concrete plank road foundation. This type of steel structure still has the hidden danger of water and mud seepage in the underwater construction of the cast-in-place concrete foundation.

[0014] Although steel processing technology has been improving, the unit price of steel has been rising in recent years, resulting in the use of steel structures for water boardwalks, which often have higher costs than cast-in-place concrete structures. Some construction parties do not agree to build steel structure water boardwalks for economic reasons. In addition, since the steel structure itself has poor water resistance and is much less corrosion-resistant in water than on land, the durability of steel structure buildings is poor. A large amount of manpower and material resources will be needed to take anti-corrosion measures for the steel structure boardwalk, such as applying anti-corrosion and anti-rust paint. However, it is difficult to achieve anti-rust paint on underwater components, and the subsequent maintenance cost is much higher than that of cast-in-place concrete boardwalks.

[0015] Steel structures are more suitable for temporary access roads for construction units on water - water piers, which are convenient for disassembly, assembly, transportation and reuse. However, as long-term landscape access roads, they still have their limitations and a short service life.

[0016] Therefore, how to solve the problem that the cast-in-place concrete structure or steel structure of the water plank road requires formwork and cast-in-place foundation under silt and water conditions, and there are many disadvantages in underwater construction, such as long construction period, high temporary cost of construction measures, easy damage to the water environment, easy damage to various pipelines in the river, difficult to ensure construction quality, low industrialization level, low labor efficiency, etc., and the steel structure plank road has the disadvantages of high cost, low cost performance, long later maintenance time and high cost, which have become technical problems that technical personnel in this field need to solve urgently. Summary of the invention

[0017] In view of the above-mentioned defects of the prior art, the present invention provides a water landscape plank road combining prefabricated square piles and cast-in-place concrete components. The purpose of achieving this goal is to adjust the structural scheme of the water landscape plank road and simplify the construction process of the cast-in-place concrete structure. At the same time, the overall ornamental, economic, environmental protection and safety of the cast-in-place concrete plank road are comprehensively considered. On the premise of ensuring the construction and use functions of the landscape bridge, the advantages and disadvantages of the cast-in-place concrete water plank road structure are comprehensively considered to solve the defects of the prior art.

[0018] To achieve the above-mentioned purpose, the present invention discloses a water landscape plank road combining prefabricated square piles and cast-in-place concrete components, comprising a plank road platform with an elevation above the water surface.

[0019] The plank road platform includes a plurality of cast-in-place concrete beams and slabs; a plurality of prefabricated square piles are arranged under each of the cast-in-place concrete beams and slabs, and the prefabricated square piles are used to fix the platform to the underwater foundation;

[0020] A plurality of short cast-in-place concrete beams evenly distributed along the length direction and two or more long cast-in-place concrete beams evenly distributed along the width direction are arranged under each of the cast-in-place concrete beam slabs as frame beams;

[0021] The intersection of each of the short cast-in-place concrete beams and the corresponding frame beam of any of the long cast-in-place concrete beams is fixed to the upper end of the prefabricated square piles through a pile top cap;

[0022] Each of the pile top caps is a reinforced concrete inverted trapezoidal platform structure with the upper end dimension larger than the lower end dimension, the height is the same as the height of the corresponding short concrete cast-in-place beam, and is coaxially arranged with the corresponding prefabricated square pile;

[0023] Each of the pile top caps is provided with an inverted trapezoidal steel cage including a plurality of additional oblique steel bars and a plurality of additional stirrups at a position corresponding to the outer side surface;

[0024] The upper end of each additional oblique steel bar is anchored into the corresponding cast-in-place concrete beam slab, and the lower end is bent and anchored into the corresponding short cast-in-place concrete beam from a position close to the bottom of the corresponding short cast-in-place concrete beam;

[0025] A plurality of vertical anchor bars are arranged in each of the pile caps corresponding to the pile body auxiliary bars and the pile body main bars of the corresponding prefabricated square piles;

[0026] The upper end of each of the vertical anchor bars is anchored in the corresponding short cast-in-place concrete beam;

[0027] The lower end of each vertical anchor bar is welded and fixed to the top flange steel plate of the corresponding prefabricated square pile.

[0028] Preferably, each side surface of each pile top column cap forms an angle of 45 degrees or 60 degrees with the horizontal plane.

[0029] Preferably, the size of the lower end of each pile top column cap is larger than the size of the cross section of the corresponding prefabricated square pile, and both sides are larger than 75 mm.

[0030] Preferably, the heights of the several long cast-in-place concrete beams of each cast-in-place concrete beam-slab are 100 mm less than the heights of the corresponding short cast-in-place concrete beams.

[0031] Preferably, the distance between every two adjacent additional stirrups is no more than 100 mm.

[0032] Preferably, the plurality of pile top column caps include a second type of pile top column cap disposed between the intersection of the prefabricated square pile and the frame beam, the upper end of which is higher than the design elevation;

[0033] The concrete at the upper end of the prefabricated square pile that is higher than the designed elevation and the corresponding top flange steel plate are chiseled out, and each of the pile body auxiliary reinforcement and each of the pile body main reinforcement are welded and fixed to the corresponding vertical anchor reinforcement of the second type of pile top column cap.

[0034] More preferably, the height of the concrete removed from the upper end of the prefabricated square pile is greater than the welding length of each corresponding pile body auxiliary reinforcement and each pile body main reinforcement with the corresponding vertical anchor reinforcement by 70 mm.

[0035] Preferably, the plurality of pile top column caps include a third type of pile top column cap disposed between the intersection of the prefabricated square pile and the frame beam, the upper end of which is lower than the design elevation;

[0036] The lower end of the third type of pile top column cap is provided with a reinforced concrete short column, which is fixedly connected to the corresponding prefabricated square pile through the reinforced concrete short column;

[0037] The lower end of each additional oblique steel bar of the third type of pile top column cap passes through the corresponding reinforced concrete short column and is welded and fixed to the top flange steel plate of the corresponding prefabricated square pile;

[0038] The lower end of each vertical anchor bar passes through the corresponding reinforced concrete short column and is welded and fixed to the top flange steel plate of the corresponding prefabricated square pile;

[0039] The upper end of each vertical steel bar of each reinforced concrete short column is anchored into the corresponding cast-in-place concrete beam slab, and the lower end is anchored into the corresponding short concrete cast-in-place beam from under the corresponding short concrete cast-in-place beam after being bent.

[0040] More preferably, each of the reinforced concrete short columns is provided with a plurality of short column stirrups in addition to the plurality of vertical steel bars.

[0041] Beneficial effects of the present invention:

[0042] The present invention comprehensively utilizes finished prefabricated square piles and additional cast-in-place concrete beams and slabs to construct the water plank road. By directly eliminating the cast-in-place pedestal, the function of the pedestal is combined with the function of the cast-in-place frame beam of the platform, thereby avoiding the safety problems caused by underwater cast-in-place concrete construction, reducing damage to the water environment, simplifying the construction process, improving the progress of the construction project, reducing the cost of temporary construction measures, breaking the traditional water plank road design technology, creating more economic value and ecological value for the society, and providing a new idea for the design technical solutions for future water operation projects.

[0043] Under the premise of ensuring the construction and use functions of the landscape bridge, the present invention is based on the existing machinery and equipment, materials and technical strength of the construction enterprise itself, and aims at the particularity of a single project. Under the premise of fully ensuring quality and safety, reasonable technological innovation is used to improve the economic and time benefits for the construction party, save materials, etc.

[0044] The present invention has important engineering practicality and safety, and can meet the demands of the builder and the construction party at the same time.

[0045] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic structural diagram of a transverse cross section of an embodiment of the present invention is shown.

[0047] Figure 2 A schematic diagram showing the structure of an embodiment of the present invention when viewed from above is shown.

[0048] Figure 3 A schematic cross-sectional structure diagram of the connection between the third type of pile top column cap and the prefabricated square pile in one embodiment of the present invention is shown.

[0049] Figure 4 Showing the present invention Figure 3 Schematic diagram of the cross-sectional structure at BB in the middle.

[0050] Figure 5 Showing the present invention Figure 3 Schematic diagram of the cross-sectional structure at CC in the middle.

[0051] Figure 6 A schematic cross-sectional structure diagram of the connection between the second type of pile top column cap and the prefabricated square pile in one embodiment of the present invention is shown.

[0052] Figure 7 Showing the present invention Figure 6 Schematic diagram of the cross-sectional structure at AA in the middle. DETAILED DESCRIPTION

[0053] Example

[0054] like Figures 1 to 5 As shown, the water landscape plank road combined with prefabricated square piles and cast-in-place concrete components includes a plank road platform with an elevation above the water surface; the characteristic is that the plank road platform includes a plurality of cast-in-place concrete beams and slabs 1; a plurality of prefabricated square piles 2 are arranged under each cast-in-place concrete beam and slab 1, and the plank road platform is fixed to the underwater foundation through the plurality of prefabricated square piles 2;

[0055] Under each cast-in-place concrete beam slab 1, there are a plurality of short cast-in-place concrete beams 3 evenly distributed along the length direction and two or more long cast-in-place concrete beams 4 evenly distributed along the width direction as frame beams;

[0056] The frame beam intersection where each short cast-in-place concrete beam 3 and any corresponding long cast-in-place concrete beam 4 intersect is fixed to the upper end of the prefabricated square pile 2 through the pile top column cap 5;

[0057] Each pile top column cap 5 is a reinforced concrete inverted trapezoidal platform structure with the upper end size larger than the lower end size, the height is the same as the height of the corresponding short concrete cast-in-place beam 3, and is coaxially arranged with the corresponding prefabricated square pile 2;

[0058] Each pile top column cap 5 is provided with an inverted trapezoidal steel cage including a plurality of additional oblique steel bars 6 and a plurality of additional stirrups 7 at a position corresponding to the outer side surface;

[0059] The upper end of each additional oblique steel bar 6 is anchored into the corresponding cast-in-place concrete beam 1, and the lower end is bent and anchored into the corresponding short concrete cast-in-place beam 3 from the position close to the bottom of the corresponding short concrete cast-in-place beam 3;

[0060] A plurality of vertical anchoring bars 10 are provided in each pile cap 5 corresponding to the pile body auxiliary bars 8 and pile body main bars 9 of the corresponding prefabricated square pile 2;

[0061] The upper end of each vertical anchor bar 10 is anchored in the corresponding short cast-in-place concrete beam 3;

[0062] The lower end of each vertical anchor bar 10 is welded and fixed to the top flange steel plate 11 of the corresponding prefabricated square pile 2 .

[0063] The principle of the present invention is as follows:

[0064] Compared with the prior art, the present invention eliminates the cast-in-place cap, combines the function of the cap with the function of the cast-in-place frame beam of the platform, and arranges a head pile column cap between the prefabricated square pile and the cast-in-place frame beam of the platform for connection.

[0065] Usually, the pile foundation under the building is often subjected to large horizontal forces. In addition to the role of transmitting vertical loads between the upper and lower parts, the cap can also provide a certain embedding effect for the pile top, so that when there is a lateral load, the pile and the cap will translate to achieve uniform pressure on the surrounding soil on the pile body, thereby ensuring the improvement of the pile bearing capacity. Therefore, in order to solve the construction hidden dangers of underwater cast-in-place concrete structures, the present invention adopts the method of eliminating the underwater cap and the underwater cast-in-place columns, connecting the prefabricated square pile 2 with the frame beam of the plank road platform, and making it into a cap beam structure to ensure the stability of the pile foundation.

[0066] That is, the plank road platform is a cast-in-place concrete beam slab with an elevation above the water surface. Under each cast-in-place concrete beam slab 1, there are multiple short cast-in-place concrete beams 3 evenly distributed along the length direction and more than two long cast-in-place concrete beams 4 evenly distributed along the width direction as frame beams; and at the intersection of each short cast-in-place concrete beam 3 and any corresponding long cast-in-place concrete beam 4, the frame beam is fixed to the upper end of the prefabricated square pile 2 through the pile top column cap 5.

[0067] In order to maximize the connection strength between the intersection of the frame beam and the prefabricated square pile 2, the present invention provides a pile top column cap 5. The pile top column cap 5 increases the cross-sectional area of ​​the connection between the foundation pile and the cast-in-place concrete beam slab 1 to disperse the pressure of the cast-in-place concrete beam slab 1 on the prefabricated square pile 2. At the same time, in order to avoid the safety hazard of insufficient connection between the cast-in-place concrete enlarged head and the prefabricated square pile 2, insufficient supporting force, and easy breakage, an inverted trapezoidal steel cage including a plurality of additional oblique steel bars 6 and a plurality of additional stirrups 7 is additionally provided, and the two ends of each additional oblique steel bar 6 are respectively anchored into the cast-in-place concrete beam slab 1 and the short concrete cast-in-place beam 3, and are fixed to each other with the additional stirrups and cast in an integrated manner.

[0068] In some embodiments, each side surface of each pile top cap 5 forms an angle of 45 degrees or 60 degrees with the horizontal plane.

[0069] In some embodiments, the size of the lower end of each pile top cap 5 is larger than the size of the cross section of the corresponding prefabricated square pile 2, and both sides are larger than 75 mm.

[0070] In some embodiments, the heights of the several long cast-in-place concrete beams 4 of each cast-in-place concrete beam slab 1 are 100 mm shorter than the heights of the corresponding short cast-in-place concrete beams 3 .

[0071] In actual application, since the prefabricated square piles 2 are directly connected to the frame beams, the long concrete cast-in-place beams 4 uniformly distributed along the width direction of the plank road platform must take into account the role of the prefabricated square piles 2 as the pedestal beams, and need to be constructed in accordance with the structural requirements of the strip pedestal beams. Within the range of the prefabricated square piles 2, the node height at the connection is the same as the height of the short concrete cast-in-place beams 3, and the longitudinal force-bearing steel bars and beam stirrups of the long concrete cast-in-place beams 4 are partially raised to avoid the height of the prefabricated square piles 2 anchored into the frame beams, so the reduction of the height of the long concrete cast-in-place beams 4 needs to be considered during professional design. At the same time, in this area, the longitudinal steel bars of the short concrete cast-in-place beams 3 uniformly distributed along the length direction are also partially raised on the bottom bars of the short concrete cast-in-place beams 3, and avoid the additional oblique steel bars, so the height of the long concrete cast-in-place beams 4 is 100 mm less than the height of the short concrete cast-in-place beams 3 to achieve the maximum design economy.

[0072] In some embodiments, the distance between every two adjacent additional stirrups 7 is no more than 100 mm.

[0073] like Figure 6 and Figure 7 As shown, in some embodiments, the plurality of pile top column caps 5 include a second type of pile top column cap 5 disposed between the intersection of the prefabricated square pile 2 and the frame beam whose upper end is higher than the design elevation;

[0074] The concrete at the upper end of the prefabricated square pile 2 that is higher than the designed elevation and the corresponding top flange steel plate 11 are chiseled away, and each pile body auxiliary reinforcement 8 and each pile body main reinforcement 9 are welded and fixed to the corresponding vertical anchor reinforcement 10 of the second type pile top column cap 5.

[0075] In some embodiments, the height of the concrete removed from the upper end of the prefabricated square pile 2 is greater than the welding length of each corresponding pile body auxiliary reinforcement 8 and each pile body main reinforcement 9 and the corresponding vertical anchoring reinforcement 10 by 70 mm.

[0076] In some embodiments, the plurality of pile top column caps 5 include a third type of pile top column cap 5 disposed between the intersection of the prefabricated square pile 2 and the frame beam, the upper end of which is lower than the design elevation;

[0077] The lower end of the third type of pile top column cap 5 is provided with a reinforced concrete short column 12, which is fixedly connected to the corresponding prefabricated square pile 2 through the reinforced concrete short column 12;

[0078] The lower end of each additional oblique steel bar 6 of the third type of pile top column cap 5 passes through the corresponding reinforced concrete short column 12 and is welded and fixed to the top flange steel plate 11 of the corresponding prefabricated square pile 2;

[0079] The lower end of each vertical anchor bar 10 passes through the corresponding reinforced concrete short column 12 and is welded and fixed to the top flange steel plate 11 of the corresponding prefabricated square pile 2;

[0080] The upper end of each vertical steel bar 13 of each reinforced concrete short column 12 is anchored into the corresponding cast-in-place concrete beam 1, and the lower end is anchored into the corresponding short concrete cast-in-place beam 3 from below the corresponding short concrete cast-in-place beam 3 after being bent.

[0081] In some embodiments, each reinforced concrete short column 12 is provided with a plurality of short column stirrups 14 in addition to the plurality of vertical steel bars 13 .

[0082] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A water landscape plank road combining prefabricated square piles and cast-in-place concrete components, including a plank road platform with an elevation above the water surface; characterized in that: The plank road platform comprises a plurality of cast-in-place concrete beams and slabs (1); a plurality of prefabricated square piles (2) are arranged under each of the cast-in-place concrete beams and slabs (1), and the beams and slabs are fixed to the underwater foundation via the plurality of prefabricated square piles (2); A plurality of short cast-in-place concrete beams (3) evenly distributed along the length direction and two or more long cast-in-place concrete beams (4) evenly distributed along the width direction are arranged below each of the cast-in-place concrete beam slabs (1) as frame beams; The frame beam intersection where each of the short cast-in-place concrete beams (3) and any corresponding long cast-in-place concrete beam (4) intersect is fixed to the upper end of the prefabricated square pile (2) via a pile top column cap (5); Each of the pile top column caps (5) is a reinforced concrete inverted trapezoidal platform structure with the upper end dimension larger than the lower end dimension, the height is the same as the height of the corresponding short concrete cast-in-place beam (3), and is coaxially arranged with the corresponding prefabricated square pile (2); An inverted trapezoidal steel cage including a plurality of additional oblique steel bars (6) and a plurality of additional stirrups (7) is provided at a position corresponding to the outer side surface of each pile top column cap (5); The upper end of each of the additional oblique steel bars (6) is anchored into the corresponding cast-in-place concrete beam slab (1), and the lower end is bent and anchored into the corresponding short cast-in-place concrete beam (3) from a position close to the bottom of the corresponding short cast-in-place concrete beam (3); A plurality of vertical anchoring bars (10) are provided in each of the pile top caps (5) corresponding to the pile body auxiliary bars (8) and the pile body main bars (9) of the corresponding prefabricated square pile (2); The upper end of each of the vertical anchor bars (10) is anchored in the corresponding short cast-in-place concrete beam (3); The lower end of each vertical anchor bar (10) is welded and fixed to the top flange steel plate (11) of the corresponding prefabricated square pile (2).

2. The water landscape plank road combining prefabricated square piles and cast-in-place concrete components according to claim 1 is characterized in that: Each side surface of each pile top column cap (5) forms an angle of 45 degrees or 60 degrees with the horizontal plane.

3. The water landscape plank road combining prefabricated square piles and cast-in-place concrete components according to claim 1 is characterized in that: The size of the lower end of each pile top column cap (5) is larger than the size of the cross section of the corresponding prefabricated square pile (2), and both sides are larger than 75 mm.

4. The water landscape plank road combining prefabricated square piles and cast-in-place concrete components according to claim 1 is characterized in that: The height of the plurality of long cast-in-place concrete beams (4) of each cast-in-place concrete beam slab (1) is 100 mm less than the height of the corresponding short cast-in-place concrete beams (3).

5. The water landscape plank road combining prefabricated square piles and cast-in-place concrete components according to claim 1 is characterized in that: The distance between every two adjacent additional stirrups (7) is no more than 100 mm.

6. The water landscape plank road combining prefabricated square piles and cast-in-place concrete components according to claim 1 is characterized in that: The plurality of pile top column caps (5) include a second type of pile top column cap (5) arranged between the intersection of the prefabricated square pile (2) and the frame beam, the upper end of which is higher than the design elevation; The concrete at the upper end of the prefabricated square pile (2) that is higher than the designed elevation and the corresponding top flange steel plate (11) are chiseled off, and each of the pile body auxiliary reinforcement (8) and each of the pile body main reinforcement (9) are welded and fixed to the corresponding vertical anchor reinforcement (10) of the second type of pile top column cap (5).

7. The water landscape plank road combining prefabricated square piles and cast-in-place concrete components according to claim 6 is characterized in that: The height of the concrete removed from the upper end of the prefabricated square pile (2) is greater than the welding length of each corresponding pile body auxiliary reinforcement (8) and each pile body main reinforcement (9) with the corresponding vertical anchor reinforcement (10) by 70 mm.

8. The water landscape plank road combining prefabricated square piles and cast-in-place concrete components according to claim 1 is characterized in that: The plurality of pile top column caps (5) include a third type of pile top column cap (5) arranged between the intersection of the prefabricated square pile (2) and the frame beam, the upper end of which is lower than the design elevation; The lower end of the third type of pile top column cap (5) is provided with a reinforced concrete short column (12), which is fixedly connected to the corresponding prefabricated square pile (2) through the reinforced concrete short column (12); The lower end of each of the additional oblique steel bars (6) of the third type of pile top column cap (5) passes through the corresponding reinforced concrete short column (12) and is welded and fixed to the top flange steel plate (11) of the corresponding prefabricated square pile (2); The lower end of each vertical anchor bar (10) passes through the corresponding reinforced concrete short column (12) and is welded and fixed to the top flange steel plate (11) of the corresponding prefabricated square pile (2); The upper end of each vertical steel bar (13) of each reinforced concrete short column (12) is anchored into the corresponding cast-in-place concrete beam slab (1), and the lower end is anchored into the corresponding short concrete cast-in-place beam (3) from below the corresponding short concrete cast-in-place beam (3) after being bent.

9. The water landscape plank road combining prefabricated square piles and cast-in-place concrete components according to claim 8 is characterized in that: Each reinforced concrete short column (12) is provided with a plurality of short column stirrups (14) in addition to the plurality of vertical steel bars (13).

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