CN108661045A - A kind of prefabricated GFRP pipe concretes spliced pile - Google Patents

A kind of prefabricated GFRP pipe concretes spliced pile Download PDF

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Publication number
CN108661045A
CN108661045A CN201810802366.9A CN201810802366A CN108661045A CN 108661045 A CN108661045 A CN 108661045A CN 201810802366 A CN201810802366 A CN 201810802366A CN 108661045 A CN108661045 A CN 108661045A
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China
Prior art keywords
plate
connecting plate
gfrp
end connecting
tube bodies
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CN201810802366.9A
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CN108661045B (en
Inventor
王连广
陈百玲
张彦明
刘姝
王梓晴
倪磊
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Northeastern University China
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Northeastern University China
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/24Prefabricated piles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/10Deep foundations
    • E02D27/12Pile foundations

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

A kind of prefabricated GFRP pipe concretes spliced pile, there are two types of pile extension modes for tool, the first is bolt connecting mode, and second is tenon connection mode.The pile body for being connected by screw bolts mode includes GFRP tube bodies, embedded steel tube, upper flanges plate, lower end flanged plate, dowel and bolt, embedded steel tube peripheral side is equipped with reserved rear pouring concrete area, bolt is set on upper flanges plate, screw hole is set on the flanged plate of lower end, and screw hole is corresponded with bolt location and after reserving in the range of pouring concrete area.Pile body using tenon connection mode includes GFRP tube bodies, upper end connecting plate and lower end connecting plate, upper end connecting plate and lower end connecting plate are equipped with several wedge grooves, wedge groove is radially distributed centered on the plate body center of circle, wedge-shaped groove location on two plate bodys corresponds, and wedge groove is fitted with double end wedge shape mortise and tenon block.It is cast with concrete in GFRP tube bodies, and can choose whether to add the steel reinforcement cage formed by indulging muscle and tie hoop before pouring into a mould concrete.

Description

A kind of prefabricated GFRP pipe concretes spliced pile
Technical field
The invention belongs to engineering construction technology fields, more particularly to a kind of prefabricated GFRP pipe concretes spliced pile.
Background technology
Currently, China builds high-speed railway on a large scale, the geological conditions that railway bed is faced is relative complex, pile foundation Plinth becomes one of the basis that can preferably meet complex geological condition and working load requirement.
Prefabricated pile foundation is applied in the engineerings such as many large-scale construction engineerings, bridge, roadbed, and material is made according to prefabricated pile The difference of material can be divided into precast concrete pile, prefabricated piling bar and prefabricated timber.It was verified that using prefabricated pile, have every year very More need to repair or replace pile foundation.By taking the U.S. as an example, the annual expense for repairing and replacing pile foundation is up to 200,000,000 dollars of left sides It is right.As it can be seen that the difficulty of environmental restrictions and high maintenance expense will be faced using concrete-pile, piling bar or wooden stake, especially exist In use, the security risk brought due to corrosion and higher maintenance cost will be faced in deep-etching soil property.Therefore, research is opened Send out high capacity a kind of, the novel pile that rigidity is big, anti-earthquake ductility is good, corrosion resistance is excellent has become field of civil engineering work Cheng Shi research hotspots.
In recent years, a kind of lightweight, the glass fiber reinforced polyester condensation material GFRP (Glass that high-strength, corrosion resistant performance is fabulous Fiber Reinforced Polymer, abbreviation GFRP) enter construction market, the one kind having become in field of civil engineering is new Proximate matter material, and the technical staff of field of civil engineering is to which create great interest, and attempt to introduce GFRP materials pre- Pile foundation processed, bearing capacity, anti-earthquake ductility and corrosion resistance for improving pile foundation, but due to the particularity of GFRP materials (by Constituted in glass fibre and resin), by the pile body of GFRP material manufactures in order to meet length needs, it is necessary to be spelled to pile body It connects, but GFRP materials can not be directly welded to connect because of material particularity, influence GFRP materials in prefabricated pile foundation In application.
Invention content
In view of the problems of the existing technology, the present invention provides a kind of prefabricated GFRP pipe concretes spliced pile, effectively overcomes The limitation that GFRP materials can not be welded to connect, at the same have it is easy for construction, easy to operate, be easily guaranteed that quality of connection The characteristics of.
To achieve the goals above, the present invention adopts the following technical scheme that:A kind of prefabricated GFRP pipe concretes spliced pile, packet Include GFRP tube bodies, vertical muscle, tie hoop, embedded steel tube, upper flanges plate, lower end flanged plate, dowel and bolt;The vertical muscle with Tie hoop constitutes steel reinforcement cage, and steel reinforcement cage is built in GFRP tube bodies;The upper flanges plate is located at the top pipe of GFRP tube bodies Mouthful, the lower end flanged plate is located at the bottom end nozzle of GFRP tube bodies, in upper flanges plate lower surface and lower end flanged plate upper surface It is fixedly welded with dowel;The embedded steel tube is packed in lower end flanged plate upper surface, and dowel is located on the inside of embedded steel tube;Institute It states embedded steel tube peripheral side and is equipped with reserved rear pouring concrete area;Along the plate body of the upper flanges plate it is circumferentially fixed be welded with it is several The bolt being uniformly arranged, and the screw portion of bolt is extended to upward above upper flanges plate;Along the plate of the lower end flanged plate Body is circumferentially evenly equipped with several screw holes, the position one-to-one correspondence of screw hole and bolt, and screw hole and bolt are located at reserved rear pouring concrete In the range of area;It is cast with concrete in GFRP tube bodies between the upper flanges plate and lower end flanged plate, the vertical muscle, Tie hoop, embedded steel tube and dowel are packaged in concrete.
A kind of prefabricated GFRP pipe concretes spliced pile, including GFRP tube bodies, embedded steel tube, upper flanges plate, lower end flanges Plate, dowel and bolt;The upper flanges plate is located at the top nozzle of GFRP tube bodies, and the lower end flanged plate is located at GFRP tube bodies Bottom end nozzle, be fixedly welded with dowel in upper flanges plate lower surface and lower end flanged plate upper surface;The embedded steel tube It is packed in lower end flanged plate upper surface, and dowel is located on the inside of embedded steel tube;The embedded steel tube peripheral side be equipped with it is reserved after pour Concrete region;Several bolts being uniformly arranged, and the screw rod of bolt are welded with along the plate body of the upper flanges plate is circumferentially fixed Part is extended to upward above upper flanges plate;Circumferentially be evenly equipped with several screw holes along the plate body of the lower end flanged plate, screw hole with The position of bolt corresponds, and screw hole and bolt are located in the range of reserved rear pouring concrete area;In the upper flanges plate Concrete is cast in GFRP tube bodies between the flanged plate of lower end, the embedded steel tube and dowel are packaged in concrete.
A kind of prefabricated GFRP pipe concretes spliced pile, including GFRP tube bodies, vertical muscle, tie hoop, upper end connecting plate and under Hold connecting plate;The vertical muscle constitutes steel reinforcement cage with tie hoop, and steel reinforcement cage is built in GFRP tube bodies;Upper end connecting plate position In the top nozzle of GFRP tube bodies, the lower end connecting plate is located at the bottom end nozzle of GFRP tube bodies, in upper end connecting plate lower surface And lower end connecting plate upper surface is fixedly welded with dowel;There are several wedge shapes upper end connecting plate upper surface is circumferentially distributed Several wedge grooves are circumferentially also distributed in lower end connecting plate lower surface in slot, and several wedge grooves are in centered on the plate body center of circle Radial distribution, upper end connecting plate and the position of the wedge groove on the connecting plate of lower end correspond;The wedge groove is fitted with double The wedge-shaped mortise and tenon block of head;Concrete is cast in GFRP tube bodies between the upper end connecting plate and lower end connecting plate, it is described vertical Muscle, tie hoop and dowel are packaged in concrete.
A kind of prefabricated GFRP pipe concretes spliced pile, including GFRP tube bodies, upper end connecting plate and lower end connecting plate;On described End connecting plate is located at the top nozzle of GFRP tube bodies, and the lower end connecting plate is located at the bottom end nozzle of GFRP tube bodies, connects in upper end Fishplate bar lower surface and lower end connecting plate upper surface are fixedly welded with dowel;It is circumferentially distributed in upper end connecting plate upper surface There are several wedge grooves, several wedge grooves is circumferentially also distributed in lower end connecting plate lower surface, and several wedge grooves are justified with plate body It is radially distributed centered on the heart, upper end connecting plate and the position of the wedge groove on the connecting plate of lower end correspond;The wedge shape Slot is fitted with double end wedge shape mortise and tenon block;It is cast with coagulation in GFRP tube bodies between the upper end connecting plate and lower end connecting plate Soil, the dowel are packaged in concrete.
Beneficial effects of the present invention:
The prefabricated GFRP pipe concretes spliced pile of the present invention, effectively overcomes the office that GFRP materials can not be welded to connect It is sex-limited, at the same have the characteristics that it is easy for construction, easy to operate, be easily guaranteed that quality of connection.
Description of the drawings
Fig. 1, which is the prefabricated GFRP pipe concretes spliced pile of the present invention, (has steel reinforcement cage and pile body is bolted) structural representation Figure;
Fig. 2 is prefabricated GFRP pipe concretes spliced pile (no-reinforcing-bar cage and pile body is bolted) structural representation of the present invention Figure;
Fig. 3 is prefabricated GFRP pipe concretes spliced pile (having steel reinforcement cage and pile body tenon connection) structural representation of the present invention Figure;
Fig. 4 is prefabricated GFRP pipe concretes spliced pile (no-reinforcing-bar cage and pile body tenon connection) structural representation of the present invention Figure;
Fig. 5 is the structural schematic diagram of upper flanges plate;
Fig. 6 is the structural schematic diagram of lower end flanged plate;
Fig. 7 is the structural schematic diagram of upper end connecting plate;
Fig. 8 is the structural schematic diagram of lower end connecting plate;
Fig. 9 is that upper end connecting plate carries out the structural schematic diagram after tenon connection with lower end connecting plate;
Figure 10 is the structural schematic diagram of double end wedge shape mortise and tenon block;
In figure, 1-GFRP tube bodies, 2-vertical muscle, 3-tie hoops, 4-embedded steel tubes, 5-upper flanges plates, under 6- End flanges plate, 7-dowels, 8-bolts, 9-reserved rear pouring concrete areas, 10-screw holes, 11-concrete, the connection of 12-upper ends Plate, 13-lower end connecting plates, 14-wedge grooves, 15-double end wedge shape mortise and tenon blocks.
Specific implementation mode
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of prefabricated GFRP pipe concretes spliced pile, including it is GFRP tube bodies 1, vertical muscle 2, tie hoop 3, pre- Bury steel pipe 4, upper flanges plate 5 (as shown in Figure 5), lower end flanged plate 6 (as shown in Figure 6), dowel 7 and bolt 8;The vertical muscle 2 Steel reinforcement cage is constituted with tie hoop 3, steel reinforcement cage is built in GFRP tube bodies 1;The upper flanges plate 5 is located at GFRP tube bodies 1 Top nozzle, the lower end flanged plate 6 are located at the bottom end nozzle of GFRP tube bodies 1, in 5 lower surface of upper flanges plate and lower end flanges 6 upper surface of plate is fixedly welded with dowel 7;The embedded steel tube 4 is packed in 6 upper surface of lower end flanged plate, and dowel 7 is located in advance Bury 4 inside of steel pipe;4 peripheral side of the embedded steel tube is equipped with reserved rear pouring concrete area 9;Along the plate body of the upper flanges plate 5 It is circumferentially fixed to be welded with several bolts 8 being uniformly arranged, and the screw portion of bolt 8 extends to 5 top of upper flanges plate upward; Several screw holes 10 are circumferentially evenly equipped with along the plate body of the lower end flanged plate 6, screw hole 10 and the position of bolt 8 correspond, and spiral shell Hole 10 and bolt 8 are located in the range of reserved rear pouring concrete area 9;Between the upper flanges plate 5 and lower end flanged plate 6 Concrete 11 is cast in GFRP tube bodies 1, the vertical muscle 2, tie hoop 3, embedded steel tube 4 and dowel 7 are packaged in concrete In 11.
As shown in Fig. 2, a kind of prefabricated GFRP pipe concretes spliced pile, including GFRP tube bodies 1, embedded steel tube 4, upper flanges Plate 5 (as shown in Figure 5), lower end flanged plate 6 (as shown in Figure 6), dowel 7 and bolt 8;The upper flanges plate 5 is located at GFRP pipes The top nozzle of body 1, the lower end flanged plate 6 are located at the bottom end nozzle of GFRP tube bodies 1,5 lower surface of upper flanges plate and under 6 upper surface of end flanges plate is fixedly welded with dowel 7;The embedded steel tube 4 is packed in 6 upper surface of lower end flanged plate, and dowel 7 Positioned at 4 inside of embedded steel tube;4 peripheral side of the embedded steel tube is equipped with reserved rear pouring concrete area 9;Along the upper flanges plate 5 Plate body it is circumferentially fixed be welded with several bolts 8 being uniformly arranged, and the screw portion of bolt 8 extends to upper flanges plate upward 5 tops;Several screw holes 10 are circumferentially evenly equipped with along the plate body of the lower end flanged plate 6, screw hole 10 and the position one of bolt 8 are a pair of It answers, and screw hole 10 and bolt 8 are located in the range of reserved rear pouring concrete area 9;In the upper flanges plate 5 and lower end flanged plate Concrete 11 is cast in GFRP tube bodies 1 between 6, the embedded steel tube 4 and dowel 7 are packaged in concrete 11.
As shown in figure 3, a kind of prefabricated GFRP pipe concretes spliced pile, including GFRP tube bodies 1, vertical muscle 2, tie hoop 3, on Hold connecting plate 12 (as shown in Figure 7) and lower end connecting plate 13 (as shown in Figure 8);The vertical muscle 2 constitutes reinforcing bar with tie hoop 3 Cage, steel reinforcement cage are built in GFRP tube bodies 1;The upper end connecting plate 12 is located at the top nozzle of GFRP tube bodies 1, and the lower end connects Fishplate bar 13 is located at the bottom end nozzle of GFRP tube bodies 1, and in upper end, 12 lower surface of connecting plate and 13 upper surface of lower end connecting plate are fixed It is welded with dowel 7;There are several wedge grooves 14 12 upper surface of upper end connecting plate is circumferentially distributed, under lower end connecting plate 13 Several wedge grooves 14 are circumferentially also distributed in surface, and several wedge grooves 14 are radially distributed centered on the plate body center of circle, on Connecting plate 12 and the position of the wedge groove 14 on lower end connecting plate 13 is held to correspond (as shown in Figure 9);The wedge groove 14 is matched Equipped with double end wedge shape mortise and tenon block 15 (as shown in Figure 10);GFRP pipes between the upper end connecting plate 12 and lower end connecting plate 13 Concrete 11 is cast in body 1, the vertical muscle 2, tie hoop 3 and dowel 7 are packaged in concrete 11.
As shown in figure 4, a kind of prefabricated GFRP pipe concretes spliced pile, including GFRP tube bodies 1,12 (such as Fig. 7 of upper end connecting plate It is shown) and lower end connecting plate 13 (as shown in Figure 8);The upper end connecting plate 12 is located at the top nozzle of GFRP tube bodies 1, under described End connecting plate 13 is located at the bottom end nozzle of GFRP tube bodies 1, and in upper end, 12 lower surface of connecting plate and 13 upper surface of lower end connecting plate are equal It is fixedly welded with dowel 7;There are several wedge grooves 14 12 upper surface of upper end connecting plate is circumferentially distributed, in lower end connecting plate Several wedge grooves 14 are circumferentially also distributed in 13 lower surfaces, and several wedge grooves 14 are radially divided centered on the plate body center of circle Cloth, upper end connecting plate 12 and the position of the wedge groove 14 on lower end connecting plate 13 correspond (as shown in Figure 9);The wedge groove 14 are fitted with double end wedge shape mortise and tenon block 15 (as shown in Figure 10);Between the upper end connecting plate 12 and lower end connecting plate 13 Concrete 11 is cast in GFRP tube bodies 1, the dowel 7 is packaged in concrete 11.
Illustrate the pile extension process of the present invention below in conjunction with the accompanying drawings:
Embodiment one:It is connected by screw bolts the prefabricated GFRP pipe concretes spliced pile of mode
After first prefabricated pile pile sinking, needs to connect second prefabricated pile, first slings second prefabricated pile, The screw hole 10 on second prefabricated pile lower end flanged plate 6 is set to be directed at the bolt 8 on first prefabricated pile upper flanges plate 5, then Slowly second prefabricated pile of control falls, and so that the screw portion of bolt 8 is passed through from screw hole 10, until second prefabricated pile lower end Flanged plate 6 and first prefabricated pile upper flanges plate 5 fit closely together, then install nut on screw rod and are locked, Finally the upper fast hardening concrete of the cast of pouring concrete area 9 after reserving, the fast hardening concrete poured after will pour mixed after reserving Bolt and nut in the areas Ning Tu 9 all encapsulate, and the fast hardening concrete in pouring concrete area 9 reaches design strength after reserved Afterwards, so that it may to continue pile sinking operation.
Embodiment two:Using the prefabricated GFRP pipe concretes spliced pile of tenon connection mode
After first prefabricated pile pile sinking, needs to connect second prefabricated pile, first slings second prefabricated pile, The wedge groove 14 on second prefabricated pile lower end connecting plate 13 is set to be directed at the wedge groove on first prefabricated pile upper end connecting plate 12 14, then slowly second prefabricated pile of control falls, until on second prefabricated pile lower end connecting plate 13 and first prefabricated pile End connecting plate 12 fits closely together, is then inserted into double end wedge shape mortise and tenon block 15 in the wedge groove 14 snapped together, profit Second prefabricated pile lower end connecting plate 13 and first prefabricated pile upper end connecting plate 12 are connected in double end wedge shape mortise and tenon block 15 Together, pile sinking operation can be continued later.
Scheme in embodiment be not to limit the scope of patent protection of the present invention, it is all without departing from carried out by the present invention etc. Effect implements or change, is both contained in the scope of the claims of this case.

Claims (4)

1. a kind of prefabricated GFRP pipe concretes spliced pile, it is characterised in that:Including GFRP tube bodies, vertical muscle, tie hoop, pre-buried steel Pipe, upper flanges plate, lower end flanged plate, dowel and bolt;The vertical muscle constitutes steel reinforcement cage with tie hoop, and steel reinforcement cage is built in In GFRP tube bodies;The upper flanges plate is located at the top nozzle of GFRP tube bodies, and the lower end flanged plate is located at GFRP tube bodies Bottom end nozzle is fixedly welded with dowel in upper flanges plate lower surface and lower end flanged plate upper surface;The embedded steel tube is solid Mounted in lower end flanged plate upper surface, and dowel is located on the inside of embedded steel tube;The embedded steel tube peripheral side is mixed equipped with being poured after reserving The areas Ning Tu;Several bolts being uniformly arranged, and the threaded shank of bolt are welded with along the plate body of the upper flanges plate is circumferentially fixed Divide and extends to upward above upper flanges plate;Plate body along the lower end flanged plate is circumferentially evenly equipped with several screw holes, screw hole and spiral shell The position of bolt corresponds, and screw hole and bolt are located in the range of reserved rear pouring concrete area;The upper flanges plate with Concrete is cast in GFRP tube bodies between the flanged plate of lower end, the vertical muscle, tie hoop, embedded steel tube and dowel encapsulate In in concrete.
2. a kind of prefabricated GFRP pipe concretes spliced pile, it is characterised in that:Including GFRP tube bodies, embedded steel tube, upper flanges plate, Lower end flanged plate, dowel and bolt;The upper flanges plate is located at the top nozzle of GFRP tube bodies, and the lower end flanged plate is located at The bottom end nozzle of GFRP tube bodies is fixedly welded with dowel in upper flanges plate lower surface and lower end flanged plate upper surface;It is described Embedded steel tube is packed in lower end flanged plate upper surface, and dowel is located on the inside of embedded steel tube;The embedded steel tube peripheral side is equipped with Pouring concrete area after reserved;Several bolts being uniformly arranged, and spiral shell are welded with along the plate body of the upper flanges plate is circumferentially fixed The screw portion of bolt is extended to upward above upper flanges plate;Plate body along the lower end flanged plate is circumferentially evenly equipped with several spiral shells The position of hole, screw hole and bolt corresponds, and screw hole and bolt are located in the range of reserved rear pouring concrete area;On described Concrete is cast in GFRP tube bodies between end flanges plate and lower end flanged plate, the embedded steel tube and dowel are packaged in mixed In solidifying soil.
3. a kind of prefabricated GFRP pipe concretes spliced pile, it is characterised in that:Connect including GFRP tube bodies, vertical muscle, tie hoop, upper end Fishplate bar and lower end connecting plate;The vertical muscle constitutes steel reinforcement cage with tie hoop, and steel reinforcement cage is built in GFRP tube bodies;The upper end Connecting plate is located at the top nozzle of GFRP tube bodies, and the lower end connecting plate is located at the bottom end nozzle of GFRP tube bodies, is connected in upper end Plate lower surface and lower end connecting plate upper surface are fixedly welded with dowel;Have upper end connecting plate upper surface is circumferentially distributed Several wedge grooves are circumferentially also distributed in lower end connecting plate lower surface in several wedge grooves, and several wedge grooves are with the plate body center of circle Centered on be radially distributed, the position of the wedge groove on upper end connecting plate and lower end connecting plate corresponds;The wedge groove It is fitted with double end wedge shape mortise and tenon block;It is cast with coagulation in GFRP tube bodies between the upper end connecting plate and lower end connecting plate Soil, the vertical muscle, tie hoop and dowel are packaged in concrete.
4. a kind of prefabricated GFRP pipe concretes spliced pile, it is characterised in that:It is connected including GFRP tube bodies, upper end connecting plate and lower end Plate;The upper end connecting plate is located at the top nozzle of GFRP tube bodies, and the lower end connecting plate is located at the bottom end nozzle of GFRP tube bodies, It is fixedly welded with dowel in upper end connecting plate lower surface and lower end connecting plate upper surface;On upper end connecting plate upper surface edge It is circumferentially distributed to have several wedge grooves, several wedge grooves, and several wedge grooves is circumferentially also distributed in lower end connecting plate lower surface It is radially distributed centered on the plate body center of circle, upper end connecting plate and the position of the wedge groove on the connecting plate of lower end correspond; The wedge groove is fitted with double end wedge shape mortise and tenon block;It is poured in GFRP tube bodies between the upper end connecting plate and lower end connecting plate It is marked with concrete, the dowel is packaged in concrete.
CN201810802366.9A 2018-07-20 2018-07-20 Precast GFRP pipe concrete spliced pile Active CN108661045B (en)

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CN108661045B CN108661045B (en) 2023-11-24

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CN109797909A (en) * 2019-02-22 2019-05-24 南京工程学院 A kind of assembled FRP pipe concrete-FRP spiral winding concrete combination column
CN114775349A (en) * 2022-03-23 2022-07-22 中铁七局集团第二工程有限公司 Prefabricated UHPC pipe confined concrete overhead roadbed pile plate structure and construction process

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