CN103669866B - The construction method of basement reinforced concrete post node connecting structure - Google Patents

The construction method of basement reinforced concrete post node connecting structure Download PDF

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Publication number
CN103669866B
CN103669866B CN201310708423.4A CN201310708423A CN103669866B CN 103669866 B CN103669866 B CN 103669866B CN 201310708423 A CN201310708423 A CN 201310708423A CN 103669866 B CN103669866 B CN 103669866B
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steel
steel bushing
doughnut
steel plate
construction
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CN103669866A (en
Inventor
邱黎
王琦琳
陈�峰
周宇
何汉林
钟自强
温志平
林培东
杨曲波
张剑锋
汪镭
廖煜铭
徐任华
赵庆强
鞠家龙
温正鑫
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GUANGDONG FOURTH CONSTRUCTION ENGINEERING CO., LTD.
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GUANGDONG FOURTH CONSTRUCTION Co
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Abstract

The present invention relates to architectural engineering construction technique field, propose a kind of basement reinforced concrete post node connecting structure construction method of reverse construction.Comprise the precast reinforced cage of step 1), steel bushing, shear key, semi-circular steel plate or 1/4 doughnut-shaped steel plate; 2) steel bushing welds with reinforcing cage; 3) concreting post; 4) soil excavation, digs out concrete column in the concrete of steel bushing surface of position, cleaning steel bushing; 5) shear key, doughnut-shaped steel plate and beam steel is welded; 6) concreting.Compared with directly passing the construction technology such as post or embedded bar with traditional reinforcing bar, adopt the present invention greatly can shorten the construction period, while guarantee construction quality and progress, the comprehensive cost of engineering will be reduced widely, steel bushing welds doughnut-shaped steel plate and H profile steel shear key, steel bushing and girder connection quality of connection are guaranteed, meet the force request of structure.

Description

The construction method of basement reinforced concrete post node connecting structure
Technical field
The present invention relates to construction engineering technical field, particularly about basement in high rise building reinforced concrete post node connecting structure.
Background technology
In reverse construction process, first along building basement axis or around construct diaphragm wall or other supporting and protection structure, intermediate sup-poning pile and post are built or laid to the relevant positions of interior of building simultaneously, bears the support of superstructure deadweight and working load as construction period before base plate back cover.Then to construct the beam slab floor structure of ground one deck, as the support that diaphragm wall rigidity is very large, successively earth excavation and build each layer underground structure, until base plate back cover downwards subsequently.Therefore, the formation of node secondary is the essential characteristic of Top-down Construction Technique.Design of node should meet the requirement of code for structural design, meets the force request under construction operating mode load-bearing condition again; Joint form and structure must meet existing process means and construction ability in technique.When bearing or crosspoint have reinforcing bar by time, will certain difficulty be there is in construction, so the node processing of underground structure post and beam slab often becomes construction difficult problem in practice of construction process.
Summary of the invention
The object of the invention is the construction method proposing a kind of basement in high rise building reinforced concrete post node connecting structure, adopt steel bushing node connected mode, solve the connection difficult problem between beam and reinforced concrete post thoroughly.
The present invention is realize by following technical scheme:
The construction method of basement reinforced concrete post node connecting structure, comprises the steps.
1) precast reinforced cage, steel bushing, shear key, semi-circular steel plate or 1/4 doughnut-shaped steel plate,
According to drawing and code requirement, precast reinforced cage, steel bushing, H profile steel shear key, semi-circular steel plate or 1/4 doughnut-shaped steel plate, wherein the internal diameter of steel bushing is suitable with the external diameter of reinforcing cage, the height of steel bushing is greater than connected depth of beam, and Inner arc and the steel bushing of semi-circular steel plate or 1/4 doughnut-shaped steel plate are suitable.
2) steel bushing welds with reinforcing cage,
Steel bushing cover is through at node location on reinforcing cage, by the vertical reinforcement of reinforcing cage and steel bushing firm welding; Also before making reinforcing cage, first vertical reinforcement can be penetrated steel bushing and firm welding, and then make reinforcing cage further.
3) concreting post,
By step 2) vertically put into stake holes with the reinforcing cage of steel bushing and concreting constructs reinforced concrete post, make steel bushing be positioned at subterranean layer node location.
4) soil excavation, cleaning steel bushing,
Carry out basement soil excavation according to reverse construction principle, dig out concrete column in the concrete of steel bushing surface of position, and the polishing of steel bushing external surface is cleaned out, make the requirement meeting welding.
5) shear key, doughnut-shaped steel plate and beam steel is welded,
Steel bushing welds doughnut-shaped steel plate (point two semi-circular steel plates or 4 piece of 1/4 doughnut-shaped steel plate surround and form) and H profile steel shear key, and row's part on the reinforcing bar of beam held again and to take on doughnut-shaped steel plate and to weld, other main muscle end of beam steel welds with steel bushing.
6) welding quality is checked, concreting,
After inspection welding quality meets the demands, construction method builds basement beam and floor concrete routinely, the concrete at bean column node place should with the concreting of microlith with strength grade, and vibrate with minor diameter vibrating head, steel bushing, doughnut-shaped steel plate, H profile steel shear key and crossbeam reinforcing bar are all wrapped up by concrete.
By above-mentioned steps 1)-6) construction rear formation basement reinforced concrete post node connecting structure.
The present invention has following outstanding substantive distinguishing features and significant progress:
1., compared with directly passing the construction technology such as post or embedded bar with traditional reinforcing bar, constructability of the present invention, can shorten the construction period greatly, while guarantee construction quality and progress, greatly reduces the comprehensive cost of an engineering;
2. the present invention by welding doughnut-shaped steel plate and H profile steel shear key on steel bushing, steel bushing and girder connection quality of connection is guaranteed, meets the force request of structure.
Accompanying drawing explanation
Fig. 1 is basement reinforced concrete post node connecting structure schematic diagram of the present invention.
Fig. 2 is the exploded view of Fig. 1 structure.
Detailed description of the invention
With reference to figure 1, Fig. 2, with specific embodiment, the present invention is further illustrated below:
The construction method of basement reinforced concrete post node connecting structure, comprises the steps.
1) precast reinforced cage, steel bushing, shear key, semi-circular steel plate or 1/4 doughnut-shaped steel plate,
According to drawing and code requirement, precast reinforced cage 1, steel bushing 2, H profile steel shear key 4,1/4 doughnut-shaped steel plate 30, wherein the internal diameter of steel bushing 2 is suitable with the external diameter of reinforcing cage 1, and the height of steel bushing 2 is greater than connected depth of beam, and Inner arc and the steel bushing 2 of 1/4 doughnut-shaped steel plate 30 are suitable.
2) steel bushing welds with reinforcing cage,
Steel bushing 2 cover is through at node location on reinforcing cage 1, by the vertical reinforcement of reinforcing cage 1 and steel bushing 2 firm welding; Also before making reinforcing cage 1, first vertical reinforcement can be penetrated steel bushing 2 and firm welding, and then make reinforcing cage 1 further.
3) concreting post,
By step 2) vertically put into stake holes with the reinforcing cage 1 of steel bushing 2, control reinforcing cage 1 verticality and ensure steel bushing 2 be positioned at node location, to transfer after reinforcing cage 1 construction method concreting in stake holes routinely, form concrete column.
4) soil excavation, cleaning steel bushing,
Carry out basement soil excavation according to reverse construction principle, dig out concrete column in the concrete of steel bushing 2 surface of position, and the polishing of steel bushing 2 external surface is cleaned out, make the requirement meeting welding.
5) shear key, doughnut-shaped steel plate and beam steel is welded,
Line setting shear key and doughnut-shaped steel plate position on steel bushing 2, welded H section steel shear key 4,1/4 doughnut-shaped steel plate 30 on steel bushing copper 2,4 piece of 1/4 doughnut-shaped steel plate Combination Welding becomes doughnut-shaped steel plate 3, on beam steel 5, row's part is taken mutually with doughnut-shaped steel plate 3 and welds, and other main muscle end of beam steel 5 welds with steel bushing 2.
6) welding quality is checked, concreting,
After inspection welding quality meets the demands, construction method builds basement beam and floor concrete routinely, the concrete at bean column node place should with the concreting of microlith with strength grade, and vibrate with minor diameter vibrating head, steel bushing 2, doughnut-shaped steel plate 3, H profile steel shear key 4 and beam steel are all wrapped up by concrete.
By above-mentioned steps 1)-6) construction rear formation basement reinforced concrete post node connecting structure.
Compared with directly passing the construction technology such as post or embedded bar with traditional reinforcing bar, adopt the present invention's construction greatly can shorten the construction period, while guarantee construction quality and progress, after reinforced concrete post and steel bushing combination of nodes, the comprehensive cost of an engineering will be greatly reduced; The present invention, by welding doughnut-shaped steel plate and H profile steel shear key on steel bushing, makes steel bushing and girder connection quality of connection be guaranteed, meets the force request of structure.

Claims (1)

1. the construction method of basement reinforced concrete post node connecting structure, is characterized in that comprising the steps:
1) precast reinforced cage, steel bushing, shear key, semi-circular steel plate or 1/4 doughnut-shaped steel plate,
According to drawing and code requirement, precast reinforced cage (1), steel bushing (2), H profile steel shear key (4), semi-circular steel plate or 1/4 doughnut-shaped steel plate, wherein the internal diameter of steel bushing (2) is suitable with the external diameter of reinforcing cage (1), the height of steel bushing (2) is greater than connected depth of beam, the Inner arc of semi-circular steel plate or 1/4 doughnut-shaped steel plate and steel bushing (2) suitable;
2) steel bushing welds with reinforcing cage,
Steel bushing (2) cover is through at the upper node location of reinforcing cage (1), by the vertical reinforcement of reinforcing cage (1) and steel bushing (2) firm welding;
3) concreting post,
By step 2) vertically put into stake holes with the reinforcing cage (1) of steel bushing (2), control the verticality of reinforcing cage and ensure that steel bushing (2) is positioned at node location, to transfer after reinforcing cage (1) construction method concreting in stake holes routinely, form concrete column;
4) soil excavation, cleaning steel bushing,
Carry out basement soil excavation according to reverse construction principle, dig out concrete column in the concrete of steel bushing (2) surface of position, and the polishing of steel bushing (2) external surface is cleaned out, make the requirement meeting welding;
5) shear key, doughnut-shaped steel plate and beam steel is welded,
In the upper line setting shear key of steel bushing (2) and doughnut-shaped steel plate position, at steel bushing copper (2) upper welded H section steel shear key (4), semi-circular steel plate or 1/4 doughnut-shaped steel plate, 2 blocks of semi-circular steel plates or 4 piece of 1/4 doughnut-shaped steel plate Combination Welding become doughnut-shaped steel plate (3), the upper row's part of reinforcing bar (5) of beam is taken mutually with doughnut-shaped steel plate (3) and welds, and other main muscle end of the reinforcing bar (5) of beam welds with steel bushing (2);
6) welding quality is checked, concreting,
After inspection welding quality meets the demands, construction method builds basement beam and floor concrete routinely, the concrete at bean column node place should with the concreting of microlith with strength grade, and vibrate with minor diameter vibrating head, steel bushing, doughnut-shaped steel plate, H profile steel shear key and crossbeam reinforcing bar are all wrapped up by concrete.
CN201310708423.4A 2013-12-20 2013-12-20 The construction method of basement reinforced concrete post node connecting structure Active CN103669866B (en)

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Publication number Priority date Publication date Assignee Title
CN103938730A (en) * 2014-04-14 2014-07-23 北京工业大学 Combination node for connecting concrete beam with round steel tube concrete column through unbonded prestressed ribs and ordinary steel bars
CN105002930B (en) * 2015-07-16 2017-03-29 上海建工四建集团有限公司 The beam-column node structure built using steel loop plate and its method
CN105863058B (en) * 2016-06-02 2019-04-16 河南大学 A kind of assembled column-girder construction of pseudo-classic architecture and its prepare joining method
CN107044132B (en) * 2017-02-22 2019-01-01 常熟建工建设集团有限公司 A kind of construction method of quake-resistant safety ground
CN109898669B (en) * 2019-03-12 2021-03-26 中建三局第一建设工程有限责任公司 Construction method for underground first-layer beam column joint by reverse construction method

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CN2360473Y (en) * 1999-03-10 2000-01-26 王志林 Steel frame structure of outer wall coner pole for steel structure building
CN1242458A (en) * 1999-05-06 2000-01-26 华南理工大学 Steel pipe high strength concrete column reinforcing joint, and method for mfg. same
CN1995573A (en) * 2006-12-28 2007-07-11 沈阳建筑大学 Node of round carbon fiber reinforced plastic steel pipe concrete column and armoured concrete frame girder
CN101100888A (en) * 2007-06-06 2008-01-09 广州大学 Steel frame beam node connecting structure for rectangular steel pipe column

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Publication number Priority date Publication date Assignee Title
CN2320663Y (en) * 1998-01-22 1999-05-26 林立岩 Panel joint of reinforced concrete column and combined reinforced column beam column
CN2360473Y (en) * 1999-03-10 2000-01-26 王志林 Steel frame structure of outer wall coner pole for steel structure building
CN1242458A (en) * 1999-05-06 2000-01-26 华南理工大学 Steel pipe high strength concrete column reinforcing joint, and method for mfg. same
CN1995573A (en) * 2006-12-28 2007-07-11 沈阳建筑大学 Node of round carbon fiber reinforced plastic steel pipe concrete column and armoured concrete frame girder
CN101100888A (en) * 2007-06-06 2008-01-09 广州大学 Steel frame beam node connecting structure for rectangular steel pipe column

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Address after: 510100 No. 99, Baiyun District, Guangzhou, Guangdong, Yuexiu District

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