CN115045441A - UHPC template-steel pipe concrete superposed short column and construction method thereof - Google Patents
UHPC template-steel pipe concrete superposed short column and construction method thereof Download PDFInfo
- Publication number
- CN115045441A CN115045441A CN202210665154.7A CN202210665154A CN115045441A CN 115045441 A CN115045441 A CN 115045441A CN 202210665154 A CN202210665154 A CN 202210665154A CN 115045441 A CN115045441 A CN 115045441A
- Authority
- CN
- China
- Prior art keywords
- uhpc
- concrete
- template
- steel pipe
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a UHPC template-steel pipe concrete superposed short column and a construction method thereof, wherein the superposed short column comprises a steel bottom plate, a steel pipe, a UHPC template, core concrete and sandwich concrete, the root part of the steel pipe is vertically fixed on the upper surface of the steel bottom plate, the UHPC template is coaxially arranged on the periphery of the steel pipe, the root part of the UHPC template is vertically fixed on the upper surface of the steel bottom plate, the core concrete is formed by pouring common concrete into the steel pipe, and the sandwich concrete is formed by pouring common concrete between the steel pipe and the UHPC template. The prefabricated UHPC template can meet the functional attributes of the prefabricated UHPC template, can also obviously improve the mechanical properties such as the strength, the rigidity and the like of the superposed short column, does not need to cut and assemble the template on site during construction, reduces the workload of site construction, realizes rapid construction and reduces the construction cost.
Description
Technical Field
The invention relates to the technical field of composite column structures, in particular to a UHPC template-steel pipe concrete superposed short column and a construction method thereof.
Background
The steel tube concrete superposed column is a novel combined structure formed by arranging steel tube concrete in reinforced concrete, and has more excellent mechanical properties compared with reinforced concrete and steel reinforced concrete (also called steel reinforced concrete). The construction mode of the concrete-filled steel tube superposed column is flexible, the internal concrete-filled steel tube and the external reinforced concrete can be constructed simultaneously, and the construction can be carried out in different periods according to the engineering requirements. As a novel superposed column structure derived from traditional steel pipe concrete, the composite column structure has the advantages of better ductility, higher rigidity, higher bearing capacity, more excellent fire resistance and earthquake resistance, and wider application in practical engineering.
Present steel pipe concrete superposed column mainly uses wooden template or steel form to pour outside concrete part, for improving component compressive property, reducing the crack appears in outside concrete simultaneously, and outside concrete often needs the ligature reinforcing bar. The problems of long construction period, high construction cost of the template project, large labor amount and the like are caused by template forming and reinforcement in concrete.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a UHPC template-steel pipe concrete superposed short column and a construction method thereof. The invention realizes the forming of the sandwich concrete by prefabricating the UHPC template, improves the bearing capacity of the member, cancels the reinforcing bars and realizes the high-efficiency combination of UHPC-common concrete-steel pipes.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a UHPC form-concrete filled steel tube overlapping stub comprising
A steel bottom plate;
the root part of the steel pipe is vertically fixed on the upper surface of the steel bottom plate;
the UHPC template is coaxially arranged on the periphery of the steel pipe, and the root part of the UHPC template is vertically fixed on the upper surface of the steel bottom plate;
the core concrete is formed by pouring common concrete into the steel pipe; and
and the sandwich concrete is formed by pouring common concrete between the steel pipe and the UHPC template.
Preferably, the UHPC template consists of the following raw materials: cement, lime powder, silica fume, standard sand, a water reducing agent and steel fiber.
Further preferably, the UHPC template comprises the following components in percentage by mass: cement: lime powder: silica fume: standard sand: the water reducing agent is 1:0.27:0.07:1.47:0.017:0.22, and the volume mixing amount of the steel fiber is 2%.
Further preferably, the cement is portland cement, preferably P · i 52.5 portland cement; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the steel fiber is flat copper-plated steel fiber.
Preferably, the common concrete is composed of the following raw materials: cement, sand, broken stone, water and a water reducing agent. Among them, ordinary C50 concrete is preferably used as the ordinary concrete.
Further preferably, the common concrete comprises the following components in percentage by mass: cement: sand: crushing stone: water: the water reducing agent is 1:1.52:2.30:0.26: 0.013.
Preferably, the UHPC template is a rectangular tubular component, and the cross section of the UHPC template perpendicular to the length direction is rectangular, and the cross section is preferably square; the thickness of the UHPC template is 15-25 mm, the height is 690-750 mm, and the width of the cross section is 230-250 mm.
Preferably, a stiffening rib is fixedly connected between the root of the steel pipe and the steel bottom plate. The steel pipe adopts circular seamless steel pipe, and its intensity grade is Q345, and the diameter is 100mm, and the thickness is 4 mm.
In a second aspect, the invention provides a construction method of a UHPC template-steel pipe concrete superposed short column, wherein the steel bottom plate, the steel pipe and the UHPC template are prefabricated in a factory and then transported to a construction site for standby; the construction method comprises the following steps:
s1, welding the root of the steel pipe with the steel bottom plate, and then reinforcing the steel pipe and the steel bottom plate by using a stiffening rib;
s2, placing the prefabricated UHPC template on the outer side of the steel pipe, and bonding and sealing the contact surface of the root of the UHPC template and the steel bottom plate by using an adhesive and a sealant; wherein, the adhesive is preferably a two-component epoxy resin adhesive, and the sealant is preferably a silicone adhesive;
and S3, pouring common concrete between the steel pipe and the UHPC template and in the steel pipe to form interlayer concrete and core concrete, and curing and leveling after pouring.
Preferably, the prefabrication method of the UHPC template comprises the following steps:
firstly, designing a wood bottom plate and a double-layer wood template with a gap corresponding to the thickness of the UHPC template, then preparing ultrahigh-performance concrete and pouring the ultrahigh-performance concrete into the gap of the double-layer wood template, curing at normal temperature after pouring is finished, removing a mold after curing is finished, and placing the UHPC template in a curing room for standard curing.
Compared with the prior art, the invention has the following advantages:
compared with the traditional wood formwork, the novel UHPC formwork-steel pipe concrete superposed short column with UHPC as the permanent formwork and built-in steel pipe concrete provided by the invention has the advantages that the prefabricated UHPC formwork can meet the functional attributes, the mechanical properties such as strength, rigidity and the like of the superposed short column can be obviously improved, the formwork does not need to be cut and assembled on site during construction, the workload of site construction is reduced, the rapid construction is realized, and the construction cost is reduced.
Drawings
Fig. 1 is a schematic perspective view of a combination of a double-layer wood formwork and a wood floor for assisting in forming a UHPC formwork in embodiments 1-3 of the present invention;
FIG. 2 is a schematic perspective view of a UHPC template in examples 1-3 of the present invention;
FIG. 3 is a schematic top view of a UHPC template in examples 1-3 of the present invention;
FIG. 4 is a schematic perspective view of a steel tube and a steel bottom plate combined according to embodiments 1 to 3 of the present invention;
FIG. 5 is a schematic perspective view of a UHPC form-concrete filled steel tube overlapping short column according to embodiments 1 to 3 of the present invention;
FIG. 6 is a schematic view showing the connection between a partial UHPC template and a steel base plate in examples 1-3 of the present invention;
fig. 7 is a schematic top view showing the structure of a UHPC form-concrete filled steel tube overlapping stub according to embodiments 1 to 3 of the present invention.
Reference numbers in the figures: the steel base plate comprises a steel base plate 1, a steel pipe 2, a UHPC template 3, core concrete 4, sandwich concrete 5, stiffening ribs 6, silicone adhesive 7, a double-layer wood template 8, a wood base plate 9 and a cushion block 10.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent, but merely as exemplifications.
The test methods or test methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1
As shown in fig. 1 to 7, the UHPC formwork-steel pipe concrete overlapping short column manufacturing step:
firstly, the thickness of a UHPC template 3 is 15mm, the width of the template is 230mm, the height of the template is 690mm, and a double-layer wood template 8 is designed, so that the gap between the wood templates is 15mm of the thickness of the UHPC template;
secondly, designing a wood bottom plate 9 to be connected with a double-layer wood template 8, inserting a cushion block 10 between the gaps of the double-layer templates, wherein the width of the cushion block 10 is 15mm of the thickness of the UHPC template 3, so as to ensure that the double-layer templates and the steel bottom plate 1 are vertical during assembling and the gaps between the templates are unchanged;
thirdly, preparing and pouring the ultra-high performance concrete, and using two reinforcing steel bars with the diameter of phi 6 and the length of 1m while pouring and vibrating; the weight ratio of the components of the ultra-high performance concrete is as follows: p · i 52.5 silicate: lime powder: silica fume: standard sand: the polycarboxylic acid high-performance water reducing agent is 1:0.27:0.07:1.47:0.017:0.22, and the volume mixing amount of the straight copper-plated steel fiber is 2 percent;
fourthly, curing the poured UHPC template for 48 hours at room temperature, then removing the template, and placing the UHPC template in a curing room for standard curing for 28 days;
fifthly, placing the round seamless steel tube 2 in the middle of the designed square steel bottom plate 1;
sixthly, welding the steel pipe 2 and the steel bottom plate 1, and then welding the steel pipe 2 and the steel bottom plate 1 by using 4 triangular stiffening ribs 6, wherein the bottom side of each triangular stiffening rib 6 is 30mm, the height of each triangular stiffening rib is 50mm, and the thickness of each triangular stiffening rib is 6 mm;
seventhly, placing the maintained UHPC template on the outer side of the steel pipe 2, firmly bonding the UHPC template with the steel bottom plate 1 by using a bi-component epoxy resin adhesive, and bonding and sealing the UHPC template with the steel bottom plate 1 by using a silicone adhesive 7 to prevent slurry leakage when the interlayer concrete 5 is poured;
eighthly, after the silicone adhesive 7 is completely solidified, pouring common concrete by taking the UHPC template and the inner steel pipe 2 as templates to form interlayer concrete 5 and core concrete 4; wherein, ordinary concrete chooses ordinary C50 concrete, and the mass ratio between its each component is: cement: sand: crushing stone: water: 1:1.52:2.30:0.26: 0.013;
ninth, after curing for 48 hours at normal temperature, leveling the surface of the test piece by using epoxy resin mortar; the epoxy resin mortar comprises the following ingredients: water-based epoxy resin and powder.
Through tests, in the embodiment, the test axial pressure bearing capacity of the UHPC template-steel pipe concrete superposed short column is 2757 kN.
Example 2
As shown in fig. 1 to 7, the UHPC formwork-steel pipe concrete overlapping short column manufacturing step:
firstly, the thickness of a UHPC template 3 is 20mm, the width of the template is 240mm, the height of the template is 720mm, and a double-layer wooden template 8 is designed, so that the gap between the wooden templates is 20mm of the thickness of the UHPC template 3;
secondly, designing a wood bottom plate 9 to be connected with a double-layer wood template 8, inserting a cushion block 10 between the gaps of the double-layer templates, wherein the width of the cushion block 10 is 20mm of the designed thickness of the UHPC template, so as to ensure that the double-layer templates and the steel bottom plate 1 are vertical during assembling and the gaps between the templates are unchanged;
thirdly, preparing and pouring the ultra-high performance concrete, and using two reinforcing steel bars with the diameter of phi 6 and the length of 1m while pouring and vibrating; wherein, the components and the proportion of the ultra-high performance concrete are the same as those of the embodiment 1;
fourthly, curing the poured UHPC template for 48 hours at room temperature, then removing the template, and placing the UHPC template in a curing room for standard curing for 28 days after removing the template.
Fifthly, placing the round seamless steel tube 2 in the middle of the designed square steel bottom plate 1;
sixthly, welding the steel pipe 2 and the steel bottom plate 1, and then welding the steel pipe 2 and the steel bottom plate 1 by using 4 triangular stiffening ribs 6, wherein the bottom side of each triangular stiffening rib 6 is 30mm, the height of each triangular stiffening rib is 50mm, and the thickness of each triangular stiffening rib is 6 mm;
seventhly, placing the maintained UHPC template on the outer side of the steel pipe 2, firmly bonding the UHPC template with the steel bottom plate 1 by using a bi-component epoxy resin adhesive, and bonding and sealing the outer UHPC template with the steel bottom plate 1 by using a silicone adhesive 7 to prevent slurry leakage when the interlayer concrete 5 is poured;
eighthly, after the silicone adhesive 7 is completely solidified, pouring common concrete by taking the UHPC template and the inner steel pipe 2 as templates to form interlayer concrete 5 and core concrete 4; wherein, the components and the proportion of the common concrete are the same as those of the embodiment 1;
ninth, after curing for 48 hours at normal temperature, leveling the surface of the test piece by using epoxy resin mortar; the epoxy resin mortar comprises the following ingredients: water-based epoxy resin and powder.
Through tests, in the embodiment, the test axial pressure bearing capacity of the UHPC template-steel pipe concrete superposed short column is 2967 kN.
Example 3
As shown in fig. 1 to 7, the UHPC formwork-steel pipe concrete overlapping short column manufacturing step:
firstly, the thickness of a UHPC template 3 is 25mm, the width of the template is 250mm, the height of the template is 750mm, and a double-layer wood template 8 is designed, so that the gap between the wood templates is 25mm of the thickness of the UHPC template 3;
secondly, designing a wood bottom plate 9 to be connected with a double-layer wood template 8, inserting a cushion block 10 between the gaps of the double-layer templates, wherein the width of the cushion block 10 is 25mm of the designed thickness of the UHPC template, so as to ensure that the double-layer templates and the steel bottom plate 1 are vertical during assembling and the gaps between the templates are unchanged;
thirdly, preparing and pouring the ultra-high performance concrete, and using two reinforcing steel bars with the diameter of phi 6 and the length of 1m while pouring and vibrating; wherein, the components and the proportion of the ultra-high performance concrete are the same as those of the embodiment 1;
fourthly, curing the poured UHPC template for 48 hours at room temperature, then removing the template, and placing the UHPC template in a curing room for standard curing for 28 days;
fifthly, placing the round seamless steel tube 2 in the middle of the designed square steel bottom plate 1;
sixthly, welding the steel pipe 2 and the steel bottom plate 1, and then welding the steel pipe 2 and the steel bottom plate 1 by using 4 triangular stiffening ribs 6, wherein the bottom side of each triangular stiffening rib 6 is 30mm, the height of each triangular stiffening rib is 50mm, and the thickness of each triangular stiffening rib is 6 mm;
seventhly, placing the maintained UHPC template on the outer side of the steel pipe 2, firmly bonding the UHPC template with the steel bottom plate 1 by using a bi-component epoxy resin adhesive, and bonding and sealing the outer UHPC template with the steel bottom plate 1 by using a silicone adhesive 7 to prevent slurry leakage when the interlayer concrete 5 is poured;
eighthly, after the silicone adhesive 7 is completely solidified, pouring common concrete by taking the UHPC template and the inner steel pipe 2 as templates to form interlayer concrete 5 and core concrete 4; wherein, the components and the proportion of the common concrete are the same as those of the embodiment 1;
ninth, after curing for 48 hours at normal temperature, leveling the surface of the test piece by using epoxy resin mortar; the epoxy resin mortar comprises the following ingredients: water-based epoxy resin and powder.
Through tests, in the embodiment, the test axial pressure bearing capacity of the UHPC template-steel pipe concrete superposed short column is 3434 kN.
Comparative example 1
The manufacturing method of the steel pipe concrete superposed short column without the UHPC template comprises the following steps:
firstly, designing a single-layer wood template with the width of 200mm and the height of 600 mm;
secondly, placing the round seamless steel tube 2 in the middle of the designed square steel bottom plate 1;
thirdly, welding the steel pipe 2 and the steel bottom plate 1, and then welding the steel pipe 2 and the steel bottom plate 1 by using 4 triangular stiffening ribs 6, wherein the bottom side length of each triangular stiffening rib 6 is 30mm, the height of each triangular stiffening rib is 50mm, and the thickness of each triangular stiffening rib is 6 mm;
fourthly, pouring common concrete by taking the outer-layer wood formwork and the inner-layer steel pipe 2 as formworks; the components and the proportion of the common concrete are the same as those of the example 1
Fifthly, after curing for 48 hours at normal temperature, leveling the surface of the test piece by using epoxy resin mortar.
The test for the composite post of steel pipe concrete without UHPC form in comparative example 1 was found to have a test axial load bearing of 1959 kN.
The invention uses the prefabricated permanent template with bearing performance, which can eliminate the formwork and reduce the external concrete reinforcing bars. As a novel cement-based composite material, UHPC has the advantages of excellent mechanical property, high compactness, low porosity, good durability and the like compared with the traditional concrete, and simultaneously the steel fiber is doped to effectively inhibit the development of cracks in the concrete. Ultra-high Performance Concrete (UHPC) with high strength and excellent durability is prefabricated into a permanent template, and the permanent template and the common Concrete are poured to form a novel UHPC template-steel pipe Concrete combined structure, so that the mechanical properties such as strength, rigidity and ductility of a member can be improved, the working properties such as durability and corrosion resistance of the member can be improved, the production cost of the steel pipe Concrete superposed column can be effectively reduced, and the construction process can be simplified.
The above description is only an embodiment of the present invention, and it should be noted that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention, and the rest that is not described in detail is the prior art.
Claims (10)
1. A UHPC template-steel pipe concrete overlapping short column is characterized by comprising a steel bottom plate (1);
the root of the steel pipe (2) is vertically fixed on the upper surface of the steel bottom plate (1);
the UHPC template (3) is coaxially arranged at the periphery of the steel pipe (2), and the root part of the UHPC template (3) is vertically fixed on the upper surface of the steel bottom plate (1);
the core concrete (4), the core concrete (4) is formed by pouring common concrete into the steel pipe (2); and
the sandwich concrete (5), the sandwich concrete (5) is formed by pouring common concrete between the steel pipe (2) and the UHPC template (3).
2. The UHPC formwork-concrete filled steel tube composite stub according to claim 1, characterised in that the UHPC formwork (3) consists of the following raw materials: cement, lime powder, silica fume, standard sand, a water reducing agent and steel fiber.
3. The superimposed short post of UHPC formwork-steel pipe concrete according to claim 2, characterized in that the UHPC formwork (3) has the following components in mass ratio: cement: lime powder: silica fume: standard sand: the water reducing agent is 1:0.27:0.07:1.47:0.017:0.22, and the volume mixing amount of the steel fiber is 2%.
4. The UHPC form-steel pipe concrete composite short column as recited in claim 2, wherein the cement is selected from portland cement; the water reducing agent is a polycarboxylic acid high-performance water reducing agent; the steel fiber is flat copper-plated steel fiber.
5. The UHPC form-steel pipe concrete composite stub of claim 1, wherein the plain concrete is composed of the following raw materials: cement, sand, broken stone, water and a water reducing agent.
6. The UHPC form-steel pipe concrete superimposed stub of claim 5, wherein the mass ratio of the components of the ordinary concrete is as follows: cement: sand: crushing stone: water: the water reducing agent is 1:1.52:2.30:0.26: 0.013.
7. A superimposed stub of UHPC formwork-steel pipe concrete according to claim 1, characterised in that the cross section of the UHPC formwork (3) perpendicular to its length direction is rectangular.
8. The UHPC template-concrete filled steel tube composite short column as recited in claim 1, wherein a stiffening rib (6) is fixedly connected between the root of the steel tube (2) and the steel bottom plate (1).
9. A construction method of a UHPC template-steel pipe concrete superposed short column is characterized in that a steel bottom plate (1), a steel pipe (2) and a UHPC template (3) according to any one of claims 1 to 8 are prefabricated in a factory and then transported to a construction site for later use; the construction method comprises the following steps:
s1, welding the root of the steel pipe (2) with the steel bottom plate (1), and then reinforcing the steel pipe (2) and the steel bottom plate (1) by using a stiffening rib (6);
s2, placing the prefabricated UHPC template (3) on the outer side of the steel pipe (2), and bonding and sealing the contact surface between the root of the UHPC template (3) and the steel bottom plate (1) by using an adhesive and a sealant;
and S3, pouring common concrete between the steel pipe (2) and the UHPC template (3) and in the steel pipe (2) to form interlayer concrete (5) and core concrete (4), and curing and leveling after pouring.
10. The construction method of the UHPC template-steel pipe concrete superposed short column as claimed in claim 9, wherein the prefabrication method of the UHPC template comprises the following steps:
firstly, designing a wood bottom plate (9) and a double-layer wood formwork (8) with a gap corresponding to the thickness of the UHPC formwork (3), then preparing ultrahigh-performance concrete and pouring the ultrahigh-performance concrete into the gap of the double-layer wood formwork (8), curing at normal temperature after pouring, removing the formwork after curing, and placing the UHPC formwork (3) in a curing chamber for standard curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210665154.7A CN115045441A (en) | 2022-06-13 | 2022-06-13 | UHPC template-steel pipe concrete superposed short column and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210665154.7A CN115045441A (en) | 2022-06-13 | 2022-06-13 | UHPC template-steel pipe concrete superposed short column and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115045441A true CN115045441A (en) | 2022-09-13 |
Family
ID=83162226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210665154.7A Pending CN115045441A (en) | 2022-06-13 | 2022-06-13 | UHPC template-steel pipe concrete superposed short column and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115045441A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117021333A (en) * | 2023-09-28 | 2023-11-10 | 福州大学 | Construction plugging device and method for steel-concrete combined pipe structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140096476A1 (en) * | 2012-10-04 | 2014-04-10 | Korea Institute Of Construction Technology | Large Scale Concrete Girder Using UHPC Member as Form and Structural Element and Its Manufacturing Method |
| CN105133793A (en) * | 2015-09-07 | 2015-12-09 | 姚攀峰 | Space constraint multi-cavity pipe-in-pipe steel bar concrete huge column and construction method |
| CN107687228A (en) * | 2017-11-10 | 2018-02-13 | 南京市交通工程质量监督站 | A kind of FRP- reinforcing bars arrangement of reinforcement composite column structure |
| CN212153086U (en) * | 2019-10-08 | 2020-12-15 | 湖北交投智能检测股份有限公司 | Concrete combined pier column |
| CN114197287A (en) * | 2020-09-18 | 2022-03-18 | 南京林业大学 | UHPC-NC combined structure and manufacturing method |
| CN114197753A (en) * | 2021-12-27 | 2022-03-18 | 扬州大学 | UHPC (ultra high performance concrete) die shell type steel concrete composite cylinder-steel beam combined frame and construction method |
-
2022
- 2022-06-13 CN CN202210665154.7A patent/CN115045441A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140096476A1 (en) * | 2012-10-04 | 2014-04-10 | Korea Institute Of Construction Technology | Large Scale Concrete Girder Using UHPC Member as Form and Structural Element and Its Manufacturing Method |
| CN105133793A (en) * | 2015-09-07 | 2015-12-09 | 姚攀峰 | Space constraint multi-cavity pipe-in-pipe steel bar concrete huge column and construction method |
| CN107687228A (en) * | 2017-11-10 | 2018-02-13 | 南京市交通工程质量监督站 | A kind of FRP- reinforcing bars arrangement of reinforcement composite column structure |
| CN212153086U (en) * | 2019-10-08 | 2020-12-15 | 湖北交投智能检测股份有限公司 | Concrete combined pier column |
| CN114197287A (en) * | 2020-09-18 | 2022-03-18 | 南京林业大学 | UHPC-NC combined structure and manufacturing method |
| CN114197753A (en) * | 2021-12-27 | 2022-03-18 | 扬州大学 | UHPC (ultra high performance concrete) die shell type steel concrete composite cylinder-steel beam combined frame and construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117021333A (en) * | 2023-09-28 | 2023-11-10 | 福州大学 | Construction plugging device and method for steel-concrete combined pipe structure |
| CN117021333B (en) * | 2023-09-28 | 2023-12-12 | 福州大学 | Construction plugging device and method for steel-concrete combined pipe structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103174252B (en) | A kind of self-insulation quake-proof building block and application process | |
| CN103088964A (en) | Steel tube foam concrete combined upright column and construction method thereof | |
| CN101967851A (en) | Board-mixing structure assembly type house and building method thereof | |
| CN105421652A (en) | Composite heat-preserving wallboard | |
| CN114197753B (en) | UHPC shuttering type steel reinforced concrete composite cylinder-shaped steel beam combined frame and construction method | |
| CN109465957A (en) | A kind of assembled reinforcing bar enhancing cell concrete composite floor plate and its production method | |
| CN112324017A (en) | Light concrete reinforcing steel bar net frame composite heat-insulation wall plate and mounting method thereof | |
| CN115045441A (en) | UHPC template-steel pipe concrete superposed short column and construction method thereof | |
| CN101446123A (en) | Green concrete mould-locking linkage internal partition plate | |
| CN113236006B (en) | Assembled concrete column connected node | |
| CN113565264A (en) | FRP-UHPFRC-concrete composite column | |
| CN212427210U (en) | UHPC-RC combination coincide assembled utility tunnel structure | |
| CN201224946Y (en) | Prefabricated net frame sandwich wall board | |
| CN217027753U (en) | Novel truss structure | |
| CN115749347A (en) | Masonry wall composite reinforcement method | |
| CN112814150B (en) | Rectangular steel sleeve type connection method for basic magnesium sulfate cement concrete assembled frame nodes | |
| CN206090997U (en) | Large -span assembled cavity superstructure | |
| CN110130553B (en) | Heat-insulating floor structure and production method | |
| CN213390660U (en) | One shot forming's secret close rib structure light weight wallboard | |
| CN211523642U (en) | Assembled steel structure short-limb shear wall and low-rise residential building | |
| CN112982692A (en) | One-way superimposed sheet joint connecting structure and construction method | |
| CN101881065B (en) | Simulated hollow plate and manufacturing method thereof | |
| CN207934290U (en) | A kind of central island force type cavity building roof assembled cavity floor | |
| CN112144722A (en) | Fireproof floor | |
| KR102504986B1 (en) | Construction method of reinforced concrete structure using precast reinforced concrete column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |