CN111161625A - Assembly type regenerated straw concrete frame structure teaching model and installation method - Google Patents
Assembly type regenerated straw concrete frame structure teaching model and installation method Download PDFInfo
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- CN111161625A CN111161625A CN201911426443.6A CN201911426443A CN111161625A CN 111161625 A CN111161625 A CN 111161625A CN 201911426443 A CN201911426443 A CN 201911426443A CN 111161625 A CN111161625 A CN 111161625A
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Abstract
An assembly type regenerated straw concrete frame structure teaching model and an installation method thereof are composed of a regenerated concrete beam (1) and a regenerated concrete column (2); the end part of each recycled concrete beam (1) is provided with four beam bottom preformed holes (3), beam top preformed holes (10) and two beam end preformed holes (8); the beam bottom preformed hole (3) at the end part of the recycled concrete beam (1) is connected with the column end preformed hole (6) through a beam column tie bamboo reinforcement (7); beam end filling gaps (4) are reserved among the recycled concrete beams (1); a beam end tie bamboo rib net (5) is arranged between the recycled concrete beams (1) erected on the recycled concrete column (2), and beam end preformed holes (8) of the recycled concrete beams (1) are bound and connected with the beam end tie bamboo rib net (5) through beam end joint bars (9).
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a teaching model of an assembled regenerated straw concrete frame structure and an installation method.
Background
In recent years, the national and local governments have vigorously advocated green energy-saving building construction processes, and especially, the assembled buildings are rapidly developed. The fabricated building is prefabricated with some or all of the components in a factory and then transported to a construction site for assembly. And after the prefabricated part is transported to a construction site, overlapping and pouring the reinforced concrete. The prefabricated components are prefabricated in a factory, common quality problems such as wall cracking and leakage can be improved to the maximum extent, the overall safety level, the fire resistance and the durability are improved, the engineering progress is accelerated, the progress of the prefabricated building is about 30% faster than that of the traditional mode, civilized construction and safety management are facilitated, the environment is protected, resources are saved, fewer original cast-in-place operations are performed on the site, and the reuse rate of templates and the like is improved. Taking a prefabricated frame structure as an example, after foundation construction is finished, firstly, the prefabricated concrete columns are hung and installed, and then, the main beam, the secondary beam and the floor slab are installed. And binding the reinforcing steel bars at the connecting part after the hoisting of the prefabricated part is finished, and then performing concrete pouring on the node and the beam slab cast-in-situ layer. In order to ensure that construction errors are reduced and the progress of the project is accelerated, each fabricated component is numbered. And meanwhile, BIM simulation is carried out in the design process, the position relation and connection between the reserved steel bars of the assembled component and the steel bars of the cast-in-place part are considered, and dislocation and collision of the component in the field construction process are greatly reduced.
On the one hand, practice teaching of all major of civil engineering of colleges and universities needs all kinds of assembled objects and models. On the other hand, in the civil engineering material laboratory of each college and university at present, the quantity of the waste materials of the concrete test blocks of the experimental course of students is large. According to the average of one group of test blocks for each student, 500 students in each civil engineering specialty of the general colleges and universities count 500, and each group has three blocks, namely 1500 blocks. The waste concrete needs to be disposed of, which requires a large amount of cost. Meanwhile, in urban construction, a large amount of various construction wastes generated by removal of houses, municipal roads and the like also need to be treated. In addition, the quantity of waste straws and the like in northern areas is huge, and the environment is seriously influenced by the straw burning problem. The waste materials are fully utilized to manufacture the fabricated building of the civil engineering major and other various teaching demonstration appliances, BIM teaching is combined in a classroom, and a real object is utilized to simulate a construction site, so that the method has very important significance for cultivating the innovation practice capability of students, cultivating the resource recycling, saving energy, protecting the environment and realizing the consciousness and the like.
Disclosure of Invention
The invention relates to an assembly type regenerated straw concrete frame structure teaching model and an installation method. The material adopted by the invention comprises a PVC square pipe as a mould, and waste building wastes such as waste concrete test blocks in a laboratory, house demolition and the like are selected, wherein the waste building wastes comprise waste concrete, waste tiles, waste external wall heat-insulation polyphenyl plates and the like; industrial wastes including fly ash, furnace slag, honeycomb coal slag and waste steel slag can also be utilized; agricultural wastes including rice hulls, waste crop straw particles and the like; the domestic waste comprises waste tire particles, waste fabric short fibers and the like.
The invention comprises material selection, mix proportion design, component manufacture, component assembly and the like. The main materials comprise gelled materials, aggregates, water, surface layer mold materials and the like; selecting cement and fly ash as cementing materials; the aggregate comprises waste concrete test block particles, other waste concrete particles and clay solid brick particles; the light aggregate comprises waste polyphenyl particles, rice hulls, straw particles, waste rubber particles, waste textile short fibers and the like. When designing the mix proportion, firstly designing the mix proportion based on the strength, and then adjusting the mix proportion based on the volume weight; and selecting various mixing ratios with different mixing amounts to carry out experimental study, and determining the optimal mixing ratio. And (4) manufacturing and assembling components such as a foundation, a column, a beam, a stair, a floor slab and the like by using the determined result of the mix proportion design.
Drawings
FIG. 1 is a plan view of a teaching model of an assembled recycled straw concrete frame structure according to the present invention; FIG. 2 is a sectional view of a teaching model of the assembled recycled straw concrete frame structure.
1. Regenerating a concrete beam; 2. a recycled concrete column; 3. reserving holes at the beam bottom; 4. filling gaps at the beam ends; 5. the bamboo rib net is tied at the beam end; 6. reserving holes at the column ends; 7. the beam column is tied with bamboo reinforcement; 8. reserving holes at the beam ends; 9. inserting a rib at the beam end; 10. and (4) reserving holes at the beam tops.
The invention relates to an assembly type regenerated straw concrete frame structure teaching model and an installation method. The assembly type recycled concrete frame structure teaching model consists of a recycled concrete beam (1) and a recycled concrete column (2); the recycled concrete column (2) comprises a middle column, side columns and corner columns, four recycled concrete beams (1) are erected at the upper end of the middle column, three recycled concrete beams (1) are erected at the upper end of the side column, and two recycled concrete beams (1) are erected at the upper end of the corner column; the end part of each recycled concrete beam (1) is provided with four beam bottom preformed holes (3), beam top preformed holes (10) and two beam end preformed holes (8); the beam bottom preformed hole (3) at the end part of the recycled concrete beam (1) is connected with the column end preformed hole (6) through a beam column tie bamboo reinforcement (7); beam end filling gaps (4) are reserved among the recycled concrete beams (1); a beam end tie bamboo rib net (5) is arranged between the recycled concrete beams (1) erected on the recycled concrete column (2), and beam end preformed holes (8) of the recycled concrete beams (1) are bound and connected with the beam end tie bamboo rib net (5) through beam end joint bars (9).
After the components are manufactured, a beam bottom preformed hole (3) is drilled at the designed position of a recycled concrete beam (1) by adopting an impact drill, and drill column end preformed holes (6) are designed at the upper end and the lower end of the recycled concrete column (2). The preparation of the component specifically comprises the following steps:
A. preparing a recycled straw concrete beam (1) and a straw recycled concrete column (2) PVC square tube as a mould;
B. preparing regenerated straw concrete according to the concrete mixing proportion design;
C. pouring concrete in a PVC square pipe mould, and plugging the end part of the PVC square pipe mould by adopting a PVC plate to manufacture a recycled concrete beam (1) and a recycled concrete column (2);
D. drilling a beam bottom preformed hole (3) and a beam end preformed hole (8) at the design position of a recycled concrete beam (1) by adopting an impact drill, and drilling a column end preformed hole (6) at the design positions of the upper end and the lower end of a recycled concrete column (2);
E. preparing a beam end drawknot bamboo rib net (5), beam column drawknot bamboo ribs (7) and beam end joint bars (9);
F. and performing demonstration connection.
The assembly type regenerated straw concrete frame structure teaching model and the installation method mainly carry out the connection of components and specifically comprise the following steps:
A. adopting a straw flat plate as a substrate, snapping lines on the substrate, and designing and arranging accurate positions of side columns and middle columns of the recycled concrete column (2);
B. determining the position of a self-tapping screw for fixing the recycled concrete column (2) according to the position of the recycled concrete column (2);
C. drilling according to the marked position of the self-tapping screw;
D. adopting self-tapping screws to bond the lower column end preformed hole (6) and the white latex, and fixing the recycled concrete column (2) on the substrate flat plate;
E. coating the emulsion glue in a preformed hole (6) at the column end of the upper part of the fixed recycled concrete column (2), inserting a beam column to tie a bamboo rib (7), and uniformly coating a layer of emulsion glue on the upper part of the recycled concrete column (2);
F. selecting a recycled concrete beam (1), coating the inside of a beam bottom preformed hole (3) and a beam end preformed hole (8) with emulsion cement, aligning to a beam column tie bamboo rib (7) inserted into a corresponding upper column end preformed hole (6) of the recycled concrete column (2), and stably placing the beam column tie bamboo rib on the emulsion cement on the upper part of the recycled concrete column (2);
G. inserting beam end joint bars (9) into the beam end preformed holes (8);
H. other recycled concrete beams (1) are installed in the same way
I. Two recycled concrete beams (1) are installed on corner posts, three recycled concrete beams (1) are installed on side posts, and four recycled concrete beams (1) are installed on center posts
J. Beam end tie bamboo rib nets (5) are arranged in the reserved beam end filling gaps (4) and are connected with beam end joint bars (9) and binding
K. Filling polyurethane foaming glue is discharged from the filling gap (4) at the beam end.
A teaching model of an assembled regenerated straw concrete frame structure and an installation method are provided, and a model beam and a model column member can be detached and reused. After the single-use, the frame structure system is dismantled into single components, the single components are repeatedly drilled at the original preformed hole part by adopting a percussion drill, and bamboo ribs in the holes are removed to be used as recycled beam and column components for standby.
The invention has the advantages that the waste concrete test blocks in laboratories, the waste crop straws and other construction wastes can be fully utilized to prepare the recycled lightweight aggregate concrete in various forms, the assembled recycled concrete component model is manufactured, the resource recycling, the energy saving and environmental protection consciousness of students are cultivated, and the understanding and comprehension of the assembled structure are increased. The components can be produced in batches in factories, and have low price and simple construction process.
The invention not only reasonably recycles the construction wastes such as the construction wastes, the straws, the waste external wall insulation board polyphenyl particles, the rice hulls, the waste tire particles, the waste fabric short fibers and the like, but also achieves the requirement of environmental protection by applying the technology, effectively reduces the environmental pollution caused by the solid wastes, reduces the construction cost, is effectively combined with the BIM, and has simple construction process.
Detailed Description
The following are respectively described with reference to the teaching model of the assembled recycled straw concrete frame structure and the installation method.
Example 1:
the assembled type regenerated straw concrete frame structure teaching model is designed according to the proportion of 10: 1 by combining with concrete engineering. The concrete beam consists of a recycled concrete beam (1) and a recycled concrete column (2); the recycled concrete column (2) comprises a middle column, side columns and corner columns, four recycled concrete beams (1) are erected at the upper end of the middle column, three recycled concrete beams (1) are erected at the upper end of the side column, and two recycled concrete beams (1) are erected at the upper end of the corner column; the end part of each recycled concrete beam (1) is provided with four beam bottom preformed holes (3), beam top preformed holes (10) and two beam end preformed holes (8); the beam bottom preformed hole (3) at the end part of the recycled concrete beam (1) is connected with the column end preformed hole (6) through a beam column tie bamboo reinforcement (7); beam end filling gaps (4) are reserved among the recycled concrete beams (1); a beam end tie bamboo rib net (5) is arranged between the recycled concrete beams (1) erected on the recycled concrete column (2), and beam end preformed holes (8) of the recycled concrete beams (1) are bound and connected with the beam end tie bamboo rib net (5) through beam end joint bars (9).
Example 2:
after the assembly type regenerated straw concrete frame structure teaching model component is manufactured, a beam bottom preformed hole (3) is drilled at the designed position of a regenerated concrete beam (1) by adopting an impact drill, and drill stem end preformed holes (6) are designed at the upper end and the lower end of the regenerated concrete column (2). The preparation of the component specifically comprises the following steps:
A. preparing a recycled concrete beam (1) and a recycled concrete column (2) PVC square tube mold, wherein the wall thickness of the PVC square tube mold is 1.5 mm;
B. recycled concrete roof beam (1) PVC side pipe mould is long 300mm, and cross-sectional dimension is the rectangle: 50 x 50 mm; recycled concrete roof beam (1) PVC side pipe mould length 600mm, the wide height of the section size is: 25X 50 mm.
C. Preparing recycled concrete according to the concrete mixing proportion design;
D. concrete is poured in the PVC square tube mould and then is maintained for 28 days;
e, adopting a PVC plate to bond and block the end part of the PVC square tube mould, and manufacturing a recycled concrete beam (1) and a recycled concrete column (2);
F. drilling a beam bottom preformed hole (3), a beam top preformed hole (10) and a beam end preformed hole (8) at the design position of a recycled concrete beam (1) by using a percussion drill, and drilling a column end preformed hole (6) at the design positions of the upper end and the lower end of a recycled concrete column (2);
G. the beam bottom preformed hole (3), the beam top preformed hole (10) and the beam end preformed hole (8) are 20mm in depth and 2.5mm in diameter, and the column end preformed hole (6) is 30mm in depth and 2.5mm in diameter;
H. preparing a beam end drawknot bamboo rib net (5), beam column drawknot bamboo ribs (7) and beam end joint bars (9);
I. the peripheral dimension of the beam end tie bamboo rib net (5) is 20 multiplied by 20mm, the diameter of the bamboo rib is 2mm, the length of the beam column tie bamboo rib (7) is 50mm, the diameter of the beam column tie bamboo rib net is 2mm, and the length of the beam end joint rib (9) is 40mm, and the diameter of the beam end joint rib net is 2 mm;
J. the demonstration connection is prepared, and the lapping length of the beam column is 15 mm.
Example 3:
the assembled regenerated straw concrete frame structure teaching model and the installation method are used for connecting components, a beam column structure with two spans in the longitudinal and transverse directions is selected, the beam length is 600mm, the central span of the column is 620mm, and the column height is 300 mm. The method specifically comprises the following steps:
A. adopting a rectangular 1350 multiplied by 1350mm straw plate with the thickness of 20mm as a substrate, snapping lines on the substrate, and designing and arranging accurate positions of side columns and middle columns of the recycled concrete column (2);
B. determining the position of a self-tapping screw according to the position of a preformed hole (6) at the lower column end of the recycled concrete column (2);
C. drilling upwards at the bottom of the straw flat plate according to the marked position of a self-tapping screw, wherein the diameter of the self-tapping screw is 2.5mm, and the length of the self-tapping screw is 50 mm;
D. fixing the recycled concrete column (2) on a base flat plate by adopting self-tapping screws and the milky white glue in a preformed hole (6) of the lower column end;
E. coating the white latex in a preformed hole (6) at the upper column end of the fixed recycled concrete column (2), inserting a beam column to tie a bamboo rib (7), and uniformly coating a layer of white latex on the upper part of the recycled concrete column (2);
F. selecting a recycled concrete beam (1), coating the inside of a beam bottom preformed hole (3) and a beam end preformed hole (8) with emulsion cement, aligning to a beam column tie bamboo rib (7) inserted into a corresponding upper column end preformed hole (6) of the recycled concrete column (2), and stably placing the beam column tie bamboo rib on the emulsion cement on the upper part of the recycled concrete column (2);
G. inserting beam end joint bars (9) into the beam end preformed holes (8);
H. installing other recycled concrete beams (1) in the same way;
I. two recycled concrete beams (1) are installed on corner posts, three recycled concrete beams (1) are installed on side posts, and four recycled concrete beams (1) are installed on center posts;
J. beam end tie bamboo rib nets (5) are arranged in the reserved beam end filling gaps (4) and are connected with beam end joint bars (9) in a binding mode;
K. filling polyurethane foaming glue at the beam end filling gap (4) and using a PVC plate for plugging.
Although the present invention has been described in detail hereinabove, the present invention is not limited thereto, and those skilled in the art can make various modifications based on the principle of the present invention. Thus, modifications made in accordance with the principles of the invention should be understood to fall within the scope of the invention.
Claims (4)
1. Assembled regeneration straw concrete frame structure teaching mode combines concrete engineering to design according to 10: 1's proportion, its characterized in that: the assembly type regenerated straw concrete frame structure teaching model consists of a regenerated concrete beam (1) and a regenerated concrete column (2); the recycled concrete column (2) comprises a middle column, side columns and corner columns, four recycled concrete beams (1) are erected at the upper end of the middle column, three recycled concrete beams (1) are erected at the upper end of the side column, and two recycled concrete beams (1) are erected at the upper end of the corner column; the end part of each recycled concrete beam (1) is provided with four beam bottom preformed holes (3), beam top preformed holes (10) and two beam end preformed holes (8); the beam bottom preformed hole (3) at the end part of the recycled concrete beam (1) is connected with the column end preformed hole (6) through a beam column tie bamboo reinforcement (7); beam end filling gaps (4) are reserved among the recycled concrete beams (1); a beam end tie bamboo rib net (5) is arranged between the recycled concrete beams (1) erected on the recycled concrete column (2), and beam end preformed holes (8) of the recycled concrete beams (1) are bound and connected with the beam end tie bamboo rib net (5) through beam end joint bars (9).
2. The assembly type recycled straw concrete frame structure teaching model of claim 1, wherein: the preparation of the assembly type recycled concrete frame structure teaching model component specifically comprises the following steps:
A. preparing a recycled concrete beam (1) and a recycled concrete column (2) PVC square tube mold, wherein the wall thickness of the PVC square tube mold is 1.5 mm;
B. recycled concrete roof beam (1) PVC side pipe mould is long 300mm, and cross-sectional dimension is the rectangle: 50 x 50 mm; recycled concrete roof beam (1) PVC side pipe mould length 600mm, the wide height of the section size is: 25X 50 mm.
C. Preparing recycled concrete according to the concrete mixing proportion design;
D. concrete is poured in the PVC square tube mould and then is maintained for 28 days;
e, adopting a PVC plate to bond and block the end part of the PVC square tube mould, and manufacturing a recycled concrete beam (1) and a recycled concrete column (2);
F. drilling a beam bottom preformed hole (3), a beam top preformed hole (10) and a beam end preformed hole (8) at the design position of a recycled concrete beam (1) by using a percussion drill, and drilling a column end preformed hole (6) at the design positions of the upper end and the lower end of a recycled concrete column (2);
G. the beam bottom preformed hole (3), the beam top preformed hole (10) and the beam end preformed hole (8) are 20mm in depth and 2.5mm in diameter, and the column end preformed hole (6) is 30mm in depth and 2.5mm in diameter;
H. preparing a beam end drawknot bamboo rib net (5), beam column drawknot bamboo ribs (7) and beam end joint bars (9);
I. the peripheral dimension of the beam end tie bamboo rib net (5) is 20 multiplied by 20mm, the diameter of the bamboo rib is 2mm, the length of the beam column tie bamboo rib (7) is 50mm, the diameter of the beam column tie bamboo rib net is 2mm, and the length of the beam end joint rib (9) is 40mm, and the diameter of the beam end joint rib net is 2 mm;
J. the demonstration connection is prepared, and the lapping length of the beam column is 15 mm.
3. The method for installing the teaching model of the assembled regenerated straw concrete frame structure is characterized by comprising the following steps of:
A. adopting a rectangular 1350 multiplied by 1350mm straw plate with the thickness of 20mm as a substrate, snapping lines on the substrate, and designing and arranging accurate positions of side columns and middle columns of the recycled concrete column (2);
B. determining the position of a self-tapping screw according to the position of a preformed hole (6) at the lower column end of the recycled concrete column (2);
C. drilling upwards at the bottom of the straw flat plate according to the marked position of a self-tapping screw, wherein the diameter of the self-tapping screw is 2.5mm, and the length of the self-tapping screw is 50 mm;
D. fixing the recycled concrete column (2) on a base flat plate by adopting self-tapping screws and the milky white glue in a preformed hole (6) of the lower column end;
E. coating the white latex in a preformed hole (6) at the upper column end of the fixed recycled concrete column (2), inserting a beam column to tie a bamboo rib (7), and uniformly coating a layer of white latex on the upper part of the recycled concrete column (2);
F. selecting a recycled concrete beam (1), coating the inside of a beam bottom preformed hole (3) and a beam end preformed hole (8) with emulsion cement, aligning to a beam column tie bamboo rib (7) inserted into a corresponding upper column end preformed hole (6) of the recycled concrete column (2), and stably placing the beam column tie bamboo rib on the emulsion cement on the upper part of the recycled concrete column (2);
G. inserting beam end joint bars (9) into the beam end preformed holes (8);
H. installing other recycled concrete beams (1) in the same way;
I. two recycled concrete beams (1) are installed on corner posts, three recycled concrete beams (1) are installed on side posts, and four recycled concrete beams (1) are installed on center posts;
J. beam end tie bamboo rib nets (5) are arranged in the reserved beam end filling gaps (4) and are connected with beam end joint bars (9) in a binding mode;
K. filling polyurethane foaming glue at the beam end filling gap (4) and using a PVC plate for plugging.
4. The method for installing the teaching model of the assembled recycled straw concrete frame structure according to claim 3, wherein after the one-time use, the frame structure system is dismantled into single components, the single components are repeatedly drilled at the original reserved hole parts by using a percussion drill, and bamboo ribs in the holes are removed and then used as recycled beam and column components for standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911426443.6A CN111161625A (en) | 2019-12-26 | 2019-12-26 | Assembly type regenerated straw concrete frame structure teaching model and installation method |
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| CN201649287U (en) * | 2009-09-18 | 2010-11-24 | 吴淑环 | Light composite post, light composite beam and light bearing composite heat-preservation wall |
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| BRPI1107368A2 (en) * | 2011-11-01 | 2014-05-27 | Helio Pedro Bukta | PRACTICAL SCIENCE TEACHING METHOD FOR SCIENCE EXPERIMENTS AND TEACHER KIT. |
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Application publication date: 20200515 |