CN101418631A - U-shaped steel-coated Regenerated composite beam of and construction method thereof - Google Patents
U-shaped steel-coated Regenerated composite beam of and construction method thereof Download PDFInfo
- Publication number
- CN101418631A CN101418631A CNA2008101990893A CN200810199089A CN101418631A CN 101418631 A CN101418631 A CN 101418631A CN A2008101990893 A CNA2008101990893 A CN A2008101990893A CN 200810199089 A CN200810199089 A CN 200810199089A CN 101418631 A CN101418631 A CN 101418631A
- Authority
- CN
- China
- Prior art keywords
- steel
- type
- concrete
- composite beam
- encased 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a U-shaped steel-encased regenerated composite beam and a construction method thereof. The U-shaped steel-encased regenerated composite beam comprises one or more disused concrete blocks, new concrete, and U-shaped encased steel, the disused concrete blocks are arranged inside the U-shaped encased steel, and the gap between the disused concrete block and the U-shaped encased steel is filled with the new concrete. The method includes the following steps: the U-shaped encased steel is made as the formwork of a beam and is integrated with the formwork of the floor slab or roof slab; a layer of new concrete is first poured into the U-shaped encased steel, then the disused concrete blocks and new concrete are alternately put into the U-shaped encased steel, tamping is utilized then to distributed the disused concrete blocks into the new concrete; steel bars of the floor slab or the roof slab are put into the formwork of the floor slab or the roof slab, and the new concrete is poured into the formwork of the floor slab or the roof slab. The invention can save a great amount of energy consumed in the processes of breaking, screening, purifying and the like for the concrete waste.
Description
Technical field
The present invention relates to concrete debris regenerative use technology field, be specifically related to a kind of U type steel-coated Regenerated composite beam and job practices thereof that comprises waste concrete block.
Background technology
At present, the concrete solid waste overwhelming majority that the old building demolition of China produces all is directly to transport the countryside to stack, and the concrete that new building needs adopts materials such as new cement, stone, river sand formulated fully.The harm that causes thus comprises: 1. discarded object appropriation of land, contaminated soil and water body; 2. excessively cut into a mountain for quarrying and destroy surface vegetation and original landforms, cause the soil erosion and the deterioration of the ecological environment; 3. a large amount of washing in a pan dug sand breaking-up riverbed, river and dykes and dams, jeopardizes river safety; 4. a large amount of energy of manufacture of cement consumption and cause serious environment pollution.For this reason, the concrete the solid waste how old building demolition of scientific utilization produces, to reduce the consumption of new building as far as possible, become whole building trade and practiced " environmental protection, energy-conservation, reduction of discharging " national strategy institute problem demanding prompt solution materials such as new cement, stone, river sand.
Regenerated aggregate concrete utilizes approach all to obtain to a certain degree research at home and abroad as concrete debris a kind of again, so-called regenerated aggregate concrete, it is exactly concrete debris with old building demolition gained, through processes such as fragmentation, screening, purifications, obtain the particle of a large amount of aggregate yardsticks, utilize its preparation then and as placed concrete.But above-mentioned processing not only process is loaded down with trivial details, and consume a large amount of energy, in the process for preparation of regenerated aggregate concrete, still need wasteful water gaging, cement, sandstone and the energy in addition, therefore be necessary to seek a kind of more rational concrete debris and recycle strategy.
Summary of the invention
Purpose of the present invention is exactly for overcoming the deficiencies in the prior art, a kind of U type steel-coated Regenerated composite beam and job practices thereof are provided, by exempting or simplify processing procedures such as the fragmentation of concrete debris in utilizing again, screening, purification, thereby save a large amount of energy that said process consumed, and spent big water gaging, cement, sandstone and the energy of the regenerated aggregate concrete suitable with waste concrete block volume preparation, finally concrete debris is recycled with less energy consumption and consumed resource.
Purpose of the present invention realizes by following method:
A kind of U type steel-coated Regenerated composite beam, it is characterized in that comprising one or more waste concrete blocks, as placed concrete and U type encased steel, described waste concrete block is positioned at U type encased steel inside, and as placed concrete is filled up in the space between waste concrete block and U type encased steel inwall.
In the above-mentioned U type steel-coated Regenerated composite beam, described waste concrete block is the discarded concrete block that old structure (as building, structure, road, bridge or dykes and dams etc.) is removed gained.
In the above-mentioned U type steel-coated Regenerated composite beam, described waste concrete block is for removing all or part of reinforcing bar discarded concrete block afterwards.
In the above-mentioned U type steel-coated Regenerated composite beam, place described a plurality of discarded concretes block gap, between fill up as placed concrete.
In the above-mentioned U type steel-coated Regenerated composite beam, described U type encased steel is that shaped steel combines or steel plate combines.
In the above-mentioned U type steel-coated Regenerated composite beam, outer folding in the side plate of described U type encased steel upper end or invagination.
In the above-mentioned U type steel-coated Regenerated composite beam, described as placed concrete is natural aggregate concrete or regenerated aggregate concrete.
The job practices of above-mentioned U type steel-coated Regenerated composite beam comprises the steps: that the first step links into an integrated entity U type encased steel as the template of beam and the template of floor plate or roof panel; Second step is at the inner cast earlier of U type encased steel one deck as placed concrete; The 3rd step was alternately inserted U type encased steel inside with waste concrete block and as placed concrete, and vibrating is distributed in the as placed concrete waste concrete block; The 4th step was put into the reinforcing bar of floor plate or roof panel in the template of floor plate or roof panel, in the template of floor plate or roof panel, pour into a mould as placed concrete then, form cast-in-situ floor or the roof system formed by U type steel-coated Regenerated composite beam and reinforced concrete floor plate or roof panel.
Above-mentioned job practices is rolled over outside on the bottom surface of the upper surface of the outer folding in bottom surface or side plate upper end of U type encased steel inside or flap section or U type encased steel inside and side plate before the first step or the upper surface of flap section is arranged some peg connectors at interval along the beam length direction; The first step and second the step between at the some longitudinal reinforcements of U type encased steel internal placement; The upper end of U type encased steel biside plate outside, roll between the 3rd step and the 4th step or flap section between arrange some connectors at interval along the beam length direction.
Above-mentioned job practices, the waste concrete block of U type steel-coated Regenerated composite beam and the mass ratio of as placed concrete are 1:4～1:1.
Adopt technique scheme, can make the present invention have following advantage with respect to prior art: processing procedures such as fragmentation during concrete debris utilizes again, screening, purification have been exempted or simplified in (1), thereby a large amount of energy that said process consumed have been saved, and spent big water gaging, cement, sandstone and the energy of the regenerated aggregate concrete suitable with waste concrete block volume preparation, finally concrete debris is recycled with less energy consumption and consumed resource.(2) U type encased steel as the template of beam, had both been saved a die process and engineering time, again the execution conditions of providing convenience for the regeneration of waste concrete block in the construction manufacturing process of U type steel-coated Regenerated composite beam.(3) U type encased steel has effect of contraction to the concrete of inside filling, can increase the rigidity and the ductility in cross section, and inner concrete of filling then can effectively prevent the cripling of U type encased steel side plate.(4) roll over outside on the bottom surface of the upper surface of outer folding in the bottom surface of U type encased steel inside or side plate upper end or flap section or U type encased steel inside and side plate or the upper surface of flap section is arranged some peg connectors at interval along the beam length direction, can improve U type encased steel and concrete cementitiousness.(5) arrange some connectors at interval along the beam length direction between folding or the flap section outside the upper end of U type encased steel biside plate, both can improve U type encased steel and concrete cementitiousness, the horizontal outer bulging deformation to U type encased steel side plate has effect of contraction again.(6) can improve the whole bending resistance of beam at the some longitudinal reinforcements of U type steel-coated Regenerated composite beam internal placement.
Description of drawings
Fig. 1 is the cross sectional representation of U type steel-coated Regenerated composite beam when waste concrete block is two sections large-size blocks;
Fig. 2 is the cross sectional representation when being furnished with the peg connector in the hybrid beam shown in Figure 1;
Fig. 3 is the cross sectional representation when being furnished with the steel disc connector in the hybrid beam shown in Figure 1;
Fig. 4 is the cross sectional representation when being furnished with longitudinal reinforcement in the hybrid beam shown in Figure 1;
Fig. 5 is the cross sectional representation when U type encased steel side plate upper end does not have outer the folding in the hybrid beam shown in Figure 1;
Fig. 6 is that the A-A of hybrid beam shown in Figure 1 is to generalized section;
Fig. 7 is the cross sectional representation when waste concrete block U type steel-coated Regenerated composite beam when being some small size blocks;
Fig. 8 is the cross sectional representation when being furnished with the peg connector in the hybrid beam shown in Figure 7;
Fig. 9 is the cross sectional representation when being furnished with the steel disc connector in the hybrid beam shown in Figure 7;
Figure 10 is the cross sectional representation when being furnished with longitudinal reinforcement in the hybrid beam shown in Figure 7;
Figure 11 is the cross sectional representation when U type encased steel side plate upper end does not have outer the folding in the hybrid beam shown in Figure 7;
Figure 12 is that the A-A of hybrid beam shown in Figure 7 is to generalized section.
Shown in the figure: 1, the outer folding part branch of U type encased steel 2, as placed concrete 3, floor plate or roof panel 4, waste concrete block 5, peg connector 6, steel disc connector 7, longitudinal reinforcement 8, U type encased steel side plate upper end
The specific embodiment
Below in conjunction with drawings and Examples concrete enforcement of the present invention is further described.
Shown in Fig. 1～12, a kind of U type steel-coated Regenerated composite beam comprises that the outer folding part of U type encased steel 1, as placed concrete 2, floor plate or roof panel 3, waste concrete block 4, peg connector 5, steel disc connector 6, longitudinal reinforcement 7, U type encased steel side plate upper end divides 8.
When waste concrete block was two sections large-size blocks, the cross sectional representation of U type steel-coated Regenerated composite beam was seen Fig. 1, the outer folding in side plate upper end of U type encased steel.At this moment, if the upper surface of folding part branch is furnished with some peg connectors at interval along the beam length direction outside the bottom surface of U type encased steel inside and side plate upper end, cross sectional representation is seen Fig. 2, if some steel disc connectors are arranged at interval along the beam length direction between dividing in the folding part outside the upper end of U type encased steel biside plate, cross sectional representation is seen Fig. 3, if at two longitudinal reinforcements of U type encased steel internal placement, cross sectional representation is seen Fig. 4.
When rolling over outside waste concrete block is two sections large-size blocks and U type encased steel side plate upper end nothing, the cross sectional representation of U type steel-coated Regenerated composite beam is seen Fig. 5.
Fig. 6 is that the A-A of Fig. 1 is to generalized section.1 is U type encased steel, it is inner and each other with contactless at interval (the concrete work progress of as placed concrete 2 that two sections waste concrete blocks 4 all are arranged in U type encased steel 1, can make waste concrete block 4 and U type encased steel 1 base plate separate contactless by pour into a mould as placed concrete 2 earlier in U type encased steel 1 bottom), as placed concrete 2 fills up the space between waste concrete block 4 and U type encased steel 1 inwall.When the situation when being two sections large-size blocks when one or more snippets large-size block of waste concrete block among the embodiment similar.
When waste concrete block was some small size blocks, the cross sectional representation of U type steel-coated Regenerated composite beam was seen Fig. 7, the outer folding in side plate upper end of U type encased steel.At this moment, if the upper surface of folding part branch is furnished with some peg connectors at interval along the beam length direction outside the bottom surface of U type encased steel inside and side plate upper end, cross sectional representation is seen Fig. 8, if some steel disc connectors are arranged at interval along the beam length direction between dividing in the folding part outside the upper end of U type encased steel biside plate, cross sectional representation is seen Fig. 9, if at two longitudinal reinforcements of U type encased steel internal placement, cross sectional representation is seen Figure 10.
The cross sectional representation of U type steel-coated Regenerated composite beam is seen Figure 11 when rolling over outside waste concrete block is some small size blocks and U type encased steel side plate upper end nothing.
Figure 12 is that the A-A of Fig. 7 is to generalized section.1 is U type encased steel, and some waste concrete blocks 4 are distributed in the as placed concrete 2, are cast in jointly in the U type encased steel 1.
The method according to this invention, can also develop a series of embodiment, as U type encased steel can be that shaped steel welding combines or steel plate is welded, roll over the upper end of U type encased steel biside plate outside or flap section between can be steel disc connector, shaped steel connector, rebar connector etc. along the spaced apart connector of beam length direction.Protection scope of the present invention is not limited to the scope of the foregoing description statement.
A kind of job practices of the foregoing description is that the first step links into an integrated entity U type encased steel as the template of beam and the template of floor plate or roof panel; Second step is at the inner cast earlier of U type encased steel one deck as placed concrete; The 3rd step was alternately inserted U type encased steel inside with waste concrete block and as placed concrete, and vibrating is distributed in the as placed concrete waste concrete block; The 4th step was put into the reinforcing bar of floor plate or roof panel in the template of floor plate or roof panel, in the template of floor plate or roof panel, pour into a mould as placed concrete then, form cast-in-situ floor or the roof system formed by U type steel-coated Regenerated composite beam and reinforced concrete floor plate or roof panel.
To be the first step arrange some peg connectors at the upper surface of the outer folding part in the bottom surface of U type encased steel inside and side plate upper end branch along the beam length direction to a kind of job practices of the foregoing description at interval, as Fig. 2, shown in Figure 8; Second step linked into an integrated entity U type encased steel as the template of beam and the template of floor plate or roof panel; The 3rd step was arranged two longitudinal reinforcements in the bottom of U type encased steel inside, as Fig. 4, shown in Figure 10; The 4th step is at the inner cast earlier of U type encased steel one deck as placed concrete; The 5th step was alternately inserted U type encased steel inside with waste concrete block and as placed concrete, and vibrating is distributed in the as placed concrete waste concrete block; Some steel disc connectors are arranged at interval along the beam length direction between dividing in the 6th step folding part outside the upper end of U type encased steel biside plate, as Fig. 3, shown in Figure 9; The 7th step was put into the reinforcing bar of floor plate or roof panel in the template of floor plate or roof panel, in the template of floor plate or roof panel, pour into a mould as placed concrete, form cast-in-situ floor or the roof system formed by U type steel-coated Regenerated composite beam and reinforced concrete floor plate or roof panel.
Claims (10)
1, a kind of U type steel-coated Regenerated composite beam, it is characterized in that comprising one or more waste concrete blocks, as placed concrete and U type encased steel, described waste concrete block is positioned at U type encased steel inside, and as placed concrete is filled up in the space between waste concrete block and U type encased steel inwall.
2, U type steel-coated Regenerated composite beam according to claim 1 is characterized in that described waste concrete block is the discarded concrete block that old building, structure, road, bridge or dykes and dams are removed gained.
3, U type steel-coated Regenerated composite beam according to claim 2 is characterized in that described waste concrete block is for removing all or part of reinforcing bar discarded concrete block afterwards.
4, U type steel-coated Regenerated composite beam according to claim 1 is characterized in that described a plurality of discarded concretes block gap places, between fill up as placed concrete.
5,, it is characterized in that described U type encased steel is that shaped steel combines or steel plate combines according to each described U type steel-coated Regenerated composite beam of claim 1～4.
6, U type steel-coated Regenerated composite beam according to claim 5 is characterized in that the side plate upper end of described U type encased steel is rolled over or invagination outward.
7, U type steel-coated Regenerated composite beam according to claim 6 is characterized in that described as placed concrete is natural aggregate concrete or regenerated aggregate concrete.
8, the job practices of each described U type steel-coated Regenerated composite beam of claim 1～7 is characterized in that comprising the steps: that the first step links into an integrated entity U type encased steel as the template of beam and the template of floor plate or roof panel; Second step is at the inner cast earlier of U type encased steel one deck as placed concrete; The 3rd step was alternately inserted U type encased steel inside with waste concrete block and as placed concrete, and vibrating is distributed in the as placed concrete waste concrete block; The 4th step was put into the reinforcing bar of floor plate or roof panel in the template of floor plate or roof panel, in the template of floor plate or roof panel, pour into a mould as placed concrete then, form cast-in-situ floor or the roof system formed by U type steel-coated Regenerated composite beam and reinforced concrete floor plate or roof panel.
9, job practices according to claim 8 is rolled over outside it is characterized in that before the first step on the bottom surface of the upper surface of the outer folding in bottom surface or side plate upper end of U type encased steel inside or flap section or U type encased steel inside and side plate or the upper surface of flap section is arranged some peg connectors at interval along the beam length direction; The first step and second the step between at the some longitudinal reinforcements of U type encased steel internal placement; The upper end of U type encased steel biside plate outside, roll between the 3rd step and the 4th step or flap section between arrange some connectors at interval along the beam length direction.
10, according to Claim 8 or 9 described job practicess, it is characterized in that the waste concrete block of described U type steel-coated Regenerated composite beam and the mass ratio of as placed concrete are 1:4～1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101990893A CN101418631A (en) | 2008-10-14 | 2008-10-14 | U-shaped steel-coated Regenerated composite beam of and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101990893A CN101418631A (en) | 2008-10-14 | 2008-10-14 | U-shaped steel-coated Regenerated composite beam of and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101418631A true CN101418631A (en) | 2009-04-29 |
Family
ID=40629614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101990893A Pending CN101418631A (en) | 2008-10-14 | 2008-10-14 | U-shaped steel-coated Regenerated composite beam of and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101418631A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677901A (en) * | 2012-05-03 | 2012-09-19 | 华南理工大学 | Construction method of horizontal combined member by using large-size waste concrete block |
| CN102995746A (en) * | 2012-11-21 | 2013-03-27 | 广州建筑股份有限公司 | Beam slab node of renewable hybrid combined floor slab made of U-shaped steel-encased renewable hybrid beam and construction method thereof |
| CN103061443A (en) * | 2012-12-31 | 2013-04-24 | 合肥工业大学 | Novel enclosed steel-concrete superimposed plate composite beam |
| CN104453093A (en) * | 2014-12-05 | 2015-03-25 | 西安建筑科技大学 | Prefabricated steel reinforced concrete beam with transversal high-strength concrete clapboard, and construction method |
| CN104563392A (en) * | 2014-10-31 | 2015-04-29 | 华南理工大学 | Recycled hybrid beam with built-in box-shaped section steel and construction technology thereof |
| CN104563391A (en) * | 2014-10-31 | 2015-04-29 | 华南理工大学 | Recycled hybrid beam with built-in discontinuous I-shaped steel and construction technology thereof |
| CN105019589A (en) * | 2015-08-14 | 2015-11-04 | 东南大学 | Assembly-integral type non-reinforced concrete ribbed floor and construction method thereof |
| CN105256947A (en) * | 2015-09-24 | 2016-01-20 | 广州建筑股份有限公司 | Method for constructing recycled mixed concrete beams and slabs |
| CN106760110A (en) * | 2016-12-30 | 2017-05-31 | 新蒲建设集团有限公司 | Based on BIM profiled sheet armored concrete hollow sandwich floor construction engineering methods |
| CN106869403A (en) * | 2017-04-13 | 2017-06-20 | 深圳市建筑设计研究总院有限公司 | The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer |
| CN107642163A (en) * | 2017-10-23 | 2018-01-30 | 重庆凌锋投资管理有限公司 | A kind of self-support type steel plate concrete integral type beam slab is whole to pour structure and its construction method |
| CN108407045A (en) * | 2018-04-13 | 2018-08-17 | 中建电力建设有限公司 | Construction method of steel-clad concrete building |
| CN108824699A (en) * | 2018-06-22 | 2018-11-16 | 河海大学 | A kind of Covered with Angles regenerated aggregate concrete beam and installation method |
| CN111270769A (en) * | 2020-02-10 | 2020-06-12 | 湖南理工学院 | Basalt fiber concrete section steel composite structure and manufacturing method thereof |
| CN114934632A (en) * | 2022-05-24 | 2022-08-23 | 华南理工大学 | Partially prefabricated U-shaped steel-wrapped recycled block concrete beam and construction method thereof |
-
2008
- 2008-10-14 CN CNA2008101990893A patent/CN101418631A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677901B (en) * | 2012-05-03 | 2014-11-12 | 华南理工大学 | Construction method of horizontal combined member by using large-size waste concrete block |
| CN102677901A (en) * | 2012-05-03 | 2012-09-19 | 华南理工大学 | Construction method of horizontal combined member by using large-size waste concrete block |
| CN102995746A (en) * | 2012-11-21 | 2013-03-27 | 广州建筑股份有限公司 | Beam slab node of renewable hybrid combined floor slab made of U-shaped steel-encased renewable hybrid beam and construction method thereof |
| CN102995746B (en) * | 2012-11-21 | 2014-12-03 | 广州建筑股份有限公司 | Beam slab node of renewable hybrid combined floor slab made of U-shaped steel-encased renewable hybrid beam and construction method thereof |
| CN103061443A (en) * | 2012-12-31 | 2013-04-24 | 合肥工业大学 | Novel enclosed steel-concrete superimposed plate composite beam |
| CN103061443B (en) * | 2012-12-31 | 2016-08-03 | 合肥工业大学 | A kind of outsourcing steel-concrete folding plate combined beam |
| WO2016065689A1 (en) * | 2014-10-31 | 2016-05-06 | 华南理工大学 | Recycled hybrid beam with built-in i-shaped steel having discontinuous top flange and construction process therefor |
| CN104563392A (en) * | 2014-10-31 | 2015-04-29 | 华南理工大学 | Recycled hybrid beam with built-in box-shaped section steel and construction technology thereof |
| CN104563391A (en) * | 2014-10-31 | 2015-04-29 | 华南理工大学 | Recycled hybrid beam with built-in discontinuous I-shaped steel and construction technology thereof |
| US10072417B2 (en) | 2014-10-31 | 2018-09-11 | South China University Of Technology | Reinforced compound concrete beam containing demolished concrete lumps |
| CN104453093A (en) * | 2014-12-05 | 2015-03-25 | 西安建筑科技大学 | Prefabricated steel reinforced concrete beam with transversal high-strength concrete clapboard, and construction method |
| CN105019589A (en) * | 2015-08-14 | 2015-11-04 | 东南大学 | Assembly-integral type non-reinforced concrete ribbed floor and construction method thereof |
| CN105256947A (en) * | 2015-09-24 | 2016-01-20 | 广州建筑股份有限公司 | Method for constructing recycled mixed concrete beams and slabs |
| CN106760110A (en) * | 2016-12-30 | 2017-05-31 | 新蒲建设集团有限公司 | Based on BIM profiled sheet armored concrete hollow sandwich floor construction engineering methods |
| CN106869403A (en) * | 2017-04-13 | 2017-06-20 | 深圳市建筑设计研究总院有限公司 | The prefabricated Concrete-Filled Square Steel Tube coupling beam of multilayer |
| CN106869403B (en) * | 2017-04-13 | 2023-09-26 | 深圳市建筑设计研究总院有限公司 | Multilayer prefabricated square steel pipe concrete connecting beam |
| CN107642163A (en) * | 2017-10-23 | 2018-01-30 | 重庆凌锋投资管理有限公司 | A kind of self-support type steel plate concrete integral type beam slab is whole to pour structure and its construction method |
| CN108407045A (en) * | 2018-04-13 | 2018-08-17 | 中建电力建设有限公司 | Construction method of steel-clad concrete building |
| CN108824699A (en) * | 2018-06-22 | 2018-11-16 | 河海大学 | A kind of Covered with Angles regenerated aggregate concrete beam and installation method |
| CN111270769A (en) * | 2020-02-10 | 2020-06-12 | 湖南理工学院 | Basalt fiber concrete section steel composite structure and manufacturing method thereof |
| CN114934632A (en) * | 2022-05-24 | 2022-08-23 | 华南理工大学 | Partially prefabricated U-shaped steel-wrapped recycled block concrete beam and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101418631A (en) | U-shaped steel-coated Regenerated composite beam of and construction method thereof | |
| CN101324115B (en) | Steel tube regeneration mixing component | |
| US10273691B2 (en) | Method of constructing a reinforced compound concrete beam containing demolished concrete lumps | |
| CN101418629B (en) | Regenerated composite reinforced concrete beam and construction method thereof | |
| CN101424106A (en) | Steel sheet regeneration mixed wall and construction method thereof | |
| CN102677901B (en) | Construction method of horizontal combined member by using large-size waste concrete block | |
| US10087106B2 (en) | Method of constructing an axial compression steel tubular column | |
| CN102995746B (en) | Beam slab node of renewable hybrid combined floor slab made of U-shaped steel-encased renewable hybrid beam and construction method thereof | |
| CN106437034A (en) | Steel tube and semi-prefabricated semi-cast-in-place construction waste recycled concrete combined column and preparation method thereof | |
| CN112282213B (en) | Steel bar regenerated block/aggregate concrete prefabricated column and construction method thereof | |
| CN101892637A (en) | Ring type anchor rod locking method for repairing cracks on abutment side wall of highway bridge abutment | |
| CN105254195B (en) | A kind of Waste tire regeneration concrete composite material and complex and its construction method | |
| CN106381956A (en) | Concrete prefabricated shell-regenerated mixed concrete combination column and preparation method thereof | |
| CN104314001B (en) | Regeneration concrete band U rib dumbbell shape columnar piers | |
| CN111421644A (en) | Application of waste concrete block stone in concrete structure construction and mould device | |
| CN114718245B (en) | Recycled block/aggregate concrete prefabricated composite beam and construction method thereof | |
| CN103184723A (en) | Method for reinforcing arch bridge with EPS Expandable Polystyrene light concrete | |
| CN204898942U (en) | Exempt from formwork constructional column | |
| CN210369567U (en) | Anti-sliding type steel recycled concrete beam | |
| JP2005194800A (en) | Recycled aggregate concrete structure and construction method therefor | |
| CN206110487U (en) | Precast concrete shell regeneration mixes concrete combination column | |
| CN106703196B (en) | Interior ring type steel tube regeneration monolith assembling structure | |
| CN101538863A (en) | Method and structure for constructing permanent soil-nailed retaining wall by woven fabric bags filled with soil | |
| CN103669200A (en) | Recycled mixed concrete bridge abutment and construction technology thereof | |
| CN110002799A (en) | A kind of method that low energy consumption comprehensive utilizes discarded concrete and seawater sea sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090429 |