Prefabricated FRP grid reinforced ECC formwork rubble concrete cylinder
By reinforcing the ECC mold shell rubble concrete column with prefabricated FRP mesh, and using FRP reinforcement to strengthen the splicing and grouting connection between the ECC concrete shell and the rubble concrete column, the problems of cumbersome construction steps and high cost in traditional construction methods are solved, achieving efficient and stable construction results, which is particularly suitable for underwater environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SOUTHWEAT UNIV OF SCI & TECH
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional construction methods for cylindrical concrete columns involve cumbersome steps, long cycles, and increased labor and equipment costs. Furthermore, the formwork requires repeated use and is prone to deformation and damage.
A prefabricated FRP mesh-reinforced ECC mold shell rubble concrete column is used. The ECC concrete shell is reinforced with FRP bars and spliced and grouted to connect with the rubble concrete column. Combined with the use of carbon fiber, glass fiber or aramid fiber bars, an assembled mold is formed and grouting is carried out in special environments.
It improves construction efficiency, reduces costs, enhances the mechanical properties and stability of the structure, is suitable for underwater construction, and ensures construction quality and convenience.
Smart Images
Figure CN224106717U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to construction building technical field, concretely is a kind of prefabricated FRP grid reinforced ECC formwork rubble concrete cylinder. BACKGROUND
[0002] In bridge, wharf, viaduct and other structural engineering, cylindrical concrete column is a common force component, and the traditional construction method usually uses steel formwork or wood formwork to support formwork, and needs to carry out form removal operation after concrete pouring is completed, which not only is complicated in construction procedure, long in period, but also increases labor cost and equipment cost, simultaneously puts forward higher requirement to formwork reuse, and there are problems such as deformation and damage, therefore, a prefabricated FRP grid reinforced ECC formwork rubble concrete cylinder is needed to solve the above technical defects. UTILITY MODEL CONTENT
[0003] The utility model aims at providing a prefabricated FRP grid reinforced ECC formwork rubble concrete cylinder to solve the problems of complicated construction procedure, long period and increased labor cost in the background art.
[0004] To achieve the above object, the utility model provides the following technical scheme: a prefabricated FRP grid reinforced ECC formwork rubble concrete cylinder, comprising FRP rib reinforced ECC concrete pipe shell, characterized by: the FRP rib reinforced ECC concrete pipe shell is spliced by two approximately semicylindrical parts, left part and right part, and the FRP rib reinforced ECC concrete pipe shell is provided with reserved holes on both sides.
[0005] As a further technical scheme of the utility model, the FRP rib reinforced ECC concrete pipe shell is provided with rubble concrete column around, and the rubble concrete column height is adapted to the FRP rib reinforced ECC concrete pipe shell.
[0006] As a further technical scheme of the utility model, the FRP rib reinforced ECC concrete pipe shell and the rubble concrete column are provided with grouting sleeve, which is used for grouting after pipe shell splicing to realize the connection of the FRP rib reinforced ECC concrete pipe shell and the rubble concrete column.
[0007] As a further technical scheme of the utility model, the left part and the right part are spliced by reserved holes using bolts or buckles to form FRP rib reinforced ECC concrete pipe shell outer whole.
[0008] As a further technical scheme of the utility model, the grouting sleeve is suitable for underwater construction, and the number of grouting sleeves is multiple, which are evenly distributed between the FRP rib reinforced ECC concrete pipe shell and the rubble concrete column.
[0009] As a further technical scheme of the utility model, the FRP bar reinforced ECC concrete pipe shell is paved with FRP bars, and the FRP bars are any one of carbon fiber bars, glass fiber bars or aramid fiber bars.
[0010] As a further technical scheme of the utility model, the FRP bar reinforced ECC concrete pipe shell is poured with ECC concrete, and the concrete adopts high-toughness fiber reinforced cement-based composite material.
[0011] As a further technical scheme of the utility model, the top edges of the left part and the right part are all processed with fixed steps, the frame is fixed on the ground periphery at the bottom of the FRP bar reinforced ECC concrete pipe shell, the frame is uniformly nailed with soil nails, and the reinforcing rope is stretched between the fixed steps and the soil nails.
[0012] Compared with the prior art, the prefabricated FRP grid reinforced ECC formwork rubble concrete cylinder has the advantages that the construction efficiency is improved, the construction cost is reduced, transportation and on-site installation are facilitated, the mechanical properties and stability of the overall structure are enhanced, the construction quality in special environments is ensured, the stability of the pouring period project is improved, the internal rubble concrete column is better protected, and the like.
[0013] (1) By arranging the FRP bar reinforced ECC concrete pipe shell, the left part and the right part, using the FRP bar reinforced ECC concrete pipe shell as the assembly type mold, the pipe wall of the FRP bar reinforced ECC concrete pipe shell serves as the formwork and the protection layer of external stress in the later period, replaces the traditional mold, saves the time for disassembling the mold in the later period, improves the construction efficiency, reduces the construction cost, the FRP bar reinforced ECC concrete pipe shell adopts the left part and the right part in the reserved splicing mode, transportation and on-site installation are facilitated, especially suitable for special construction scenes such as underwater, and the construction convenience and flexibility are improved.
[0014] (2) By arranging the grouting sleeve, after the pipe shell splicing is completed, the grouting material is injected into the gap between the FRP bar reinforced ECC concrete pipe shell and the rubble concrete column through the grouting sleeve, the FRP bar reinforced ECC concrete pipe shell and the rubble concrete column are tightly connected as a whole, the grouting sleeve arranged between the FRP bar reinforced ECC concrete pipe shell and the rubble concrete column can realize reliable connection between the two, the mechanical properties and stability of the overall structure are enhanced, and the grouting sleeve suitable for underwater construction ensures the construction quality in special environments.
[0015] (3) through the setting has FRP muscle, frame, fixed step, reinforcing tendon rope, soil nail, the FRP muscle can select carbon fiber muscle, glass fiber muscle or aramid fiber muscle etc according to actual demand, when making ECC concrete pipe shell, FRP muscle is laid in mould according to design requirement, then pours ECC concrete, forms FRP muscle reinforced ECC concrete pipe shell, ECC concrete is high toughness fiber reinforced cement-based composite material, has excellent tensile strength and crack resistance, during pouring, reinforcing tendon rope is pulled between frame and fixed step, and is fixed using soil nail, improves the stability of pouring period engineering, to better protect the rubble concrete column in the interior. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the front view sectional structure schematic diagram of the utility model;
[0017] Figure 2 It is the limit mechanism side view structure schematic diagram of the utility model;
[0018] Figure 3 It is the Figure 1 It is the A place local section enlarged structure schematic diagram of the utility model;
[0019] Figure 4 It is the dismounting mechanism side view local section enlarged structure schematic diagram of the utility model.
[0020] In the drawing: 1, FRP muscle reinforced ECC concrete pipe shell; 2, grouting sleeve; 3, rubble concrete column; 4, FRP muscle; 5, reserved hole; 6, frame; 7, soil nail; 8, reinforcing tendon rope; 9, fixed step; 10, left part; 11, right part. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] Please refer to Figures 1-4The utility model provides an embodiment: a prefabricated FRP grid reinforced ECC formwork rubble concrete cylinder, including FRP muscle reinforced ECC concrete pipe shell 1, FRP muscle reinforced ECC concrete pipe shell 1 is spliced by two pieces of approximate semicylindrical shape part left part 10 and right part 11, FRP muscle reinforced ECC concrete pipe shell 1 both sides are equipped with reserved hole 5, FRP muscle reinforced ECC concrete pipe shell 1 is surrounded with rubble concrete column 3, and the rubble concrete column 3 height is adapted to FRP muscle reinforced ECC concrete pipe shell 1, and left part 10 and right part 11 are spliced by reserved hole 5 using bolt or buckle, and form FRP muscle reinforced ECC concrete pipe shell 1 outer whole body;
[0023] Specifically, as Figure 1 、 Figure 2 、 Figure 3 And Figure 4 Indicated, FRP muscle reinforced ECC concrete pipe shell 1 is spliced by two pieces of approximate semicylindrical shape part right part 11 and left part 10, and is equipped with reserved hole 5 respectively on the both sides of part right part 11 and left part 10, and the two pieces of semicylindrical shape parts are spliced into a cylindrical pipe shell by bolt or buckle through reserved hole 5, before splicing, first place the reinforcement cage of rubble concrete column 3 at the predetermined position, then the two pieces of semicylindrical shape pipe shell parts are spliced around the reinforcement cage, form the cylindrical pipe shell, by using FRP muscle reinforced ECC concrete pipe shell 1 as the assembly type mould, the pipe wall of FRP muscle reinforced ECC concrete pipe shell 1 is as the formwork, and also can be as the protection layer of external stress in later period, replaces the traditional mould, saves the time of dismantling mould in later period, improves construction efficiency, reduces construction cost, and FRP muscle reinforced ECC concrete pipe shell 1 adopts left part 10 and right part 11 reserved splicing mode, and convenient transportation and on-site installation, especially suitable for underwater and other special construction scenes, improve the convenience and flexibility of construction.
[0024] FRP muscle reinforced ECC concrete pipe shell 1 and rubble concrete column 3 are provided with grouting sleeve 2, for grouting to realize the connection of FRP muscle reinforced ECC concrete pipe shell 1 and rubble concrete column 3 after pipe shell splicing, and the grouting sleeve 2 is the sleeve suitable for underwater construction, and the number of grouting sleeve 2 is multiple, and is evenly distributed between FRP muscle reinforced ECC concrete pipe shell 1 and rubble concrete column 3;
[0025] Specifically, as Figure 1 、 Figure 2 、 Figure 3 And Figure 4As shown, a plurality of grouting sleeves 2 are evenly distributed between the FRP-reinforced ECC concrete pipe shell 1 and the rubble concrete column 3, the grouting sleeves 2 are suitable for underwater construction and can perform grouting operations in underwater environment, after the pipe shell is spliced, grouting material is injected into the gap between the FRP-reinforced ECC concrete pipe shell 1 and the rubble concrete column 3 through the grouting sleeves 2, so that the FRP-reinforced ECC concrete pipe shell 1 and the rubble concrete column 3 are tightly connected as a whole, the grouting sleeves 2 arranged between the FRP-reinforced ECC concrete pipe shell 1 and the rubble concrete column 3 can realize reliable connection between the two, enhance the mechanical properties and stability of the overall structure, and the grouting sleeves 2 suitable for underwater construction ensure the construction quality in special environment.
[0026] The FRP-reinforced ECC concrete pipe shell 1 is laid with FRP bars 4, the FRP bars 4 are any one of carbon fiber bars, glass fiber bars or aramid fiber bars, the FRP-reinforced ECC concrete pipe shell 1 is poured with ECC concrete, the concrete is high-toughness fiber reinforced cement-based composite material, the left part 10 and the right part 11 are both machined with fixed steps 9 at the top edges, the FRP-reinforced ECC concrete pipe shell 1 is fixed with a frame 6 on the ground at the bottom periphery, the frame 6 is evenly nailed with soil nails 7, and the fixed steps 9 are stretched with reinforcing ropes 8 between the soil nails 7;
[0027] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 Figure 1 Figure 2 Figure 3 Figure 4 , the FRP bars 4 can be selected according to actual needs, such as carbon fiber bars, glass fiber bars or aramid fiber bars, during the manufacture of the ECC concrete pipe shell, the FRP bars 4 are laid in the mold according to the design requirements, and then the ECC concrete is poured to form the FRP bar 4 reinforced ECC concrete pipe shell, the ECC concrete is high-toughness fiber reinforced cement-based composite material, which has excellent tensile strength and crack resistance, during pouring, the reinforcing ropes 8 are stretched between the frame 6 and the fixed steps 9, and the soil nails 7 are used for fixation, so as to improve the stability of the pouring period project, thereby better protecting the internal rubble concrete column 3.
[0028] Working principle: during construction, firstly, the left part 10 and the right part 11 are spliced through the reserved hole 5 to form a cylindrical shell, and then the shell is placed in the predetermined position, the steel cage is placed in the FRP reinforced ECC concrete shell 1, then the rubble concrete column 3 is formed by pouring concrete, during or after pouring, the gap between the FRP reinforced ECC concrete shell 1 and the rubble concrete column 3 is injected with grouting material through the grouting sleeve 2 to realize the connection of the two, during pouring, the reinforcing rope 8 is pulled between the frame 6 and the fixed step 9, and the soil nail 7 is used for fixation, so as to improve the stability of the project during pouring, thereby better protecting the internal rubble concrete column 3, the FRP reinforced ECC concrete shell 1 is a prefabricated mold, which does not need to be disassembled later, and directly serves as a protective layer of external stress, thereby improving the mechanical properties and durability of the concrete column, especially in underwater construction scene, the underwater grouting sleeve 2 ensures the smooth progress of the grouting operation and guarantees the construction quality.
[0029] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.
Claims
1. A prefabricated FRP mesh-reinforced ECC molded rubble concrete cylinder, comprising an FRP-reinforced ECC concrete tube shell (1), characterized in that: The FRP-reinforced ECC concrete pipe shell (1) is assembled from two approximately semi-cylindrical components, left component (10) and right component (11), and the FRP-reinforced ECC concrete pipe shell (1) has reserved holes (5) on both sides.
2. The prefabricated FRP mesh-reinforced ECC molded rubble concrete cylinder according to claim 1, characterized in that: The FRP-reinforced ECC concrete tube shell (1) is surrounded by rubble concrete columns (3), the height of which is adapted to the FRP-reinforced ECC concrete tube shell (1).
3. A prefabricated FRP mesh-reinforced ECC molded rubble concrete cylinder according to claim 1, characterized in that: A grouting sleeve (2) is provided between the FRP-reinforced ECC concrete tube shell (1) and the rubble concrete column (3) for grouting after the tube shell is spliced to achieve the connection between the FRP-reinforced ECC concrete tube shell (1) and the rubble concrete column (3).
4. A prefabricated FRP mesh-reinforced ECC molded rubble concrete cylinder according to claim 1, characterized in that: The left component (10) and the right component (11) are spliced together by bolts or clips through the reserved holes (5) to form the outer integral of the FRP-reinforced ECC concrete pipe shell (1).
5. A prefabricated FRP mesh-reinforced ECC molded rubble concrete cylinder according to claim 3, characterized in that: The grouting sleeve (2) is a sleeve suitable for underwater construction. There are multiple grouting sleeves (2), which are evenly distributed between the FRP-reinforced ECC concrete shell (1) and the rubble concrete column (3).
6. A prefabricated FRP mesh-reinforced ECC molded rubble concrete cylinder according to claim 1, characterized in that: FRP reinforcement (4) is laid inside the FRP-reinforced ECC concrete pipe shell (1), and the FRP reinforcement (4) is any one of carbon fiber reinforcement, glass fiber reinforcement or aramid fiber reinforcement.
7. A prefabricated FRP mesh-reinforced ECC molded rubble concrete cylinder according to claim 1, characterized in that: The FRP-reinforced ECC concrete pipe shell (1) is poured using ECC concrete, which is a high-toughness fiber-reinforced cement-based composite material.
8. A prefabricated FRP mesh-reinforced ECC molded rubble concrete cylinder according to claim 1, characterized in that: The top edges of the left component (10) and the right component (11) are both processed with fixed steps (9). The bottom periphery of the FRP-reinforced ECC concrete pipe shell (1) is fixed with a frame (6). The frame (6) is evenly nailed with soil nails (7) to the ground. The fixed steps (9) and the soil nails (7) are stretched with reinforcing ropes (8).