CN1644827A - Node structure for combined beam and concrete column and construction thereof - Google Patents
Node structure for combined beam and concrete column and construction thereof Download PDFInfo
- Publication number
- CN1644827A CN1644827A CN 200510032661 CN200510032661A CN1644827A CN 1644827 A CN1644827 A CN 1644827A CN 200510032661 CN200510032661 CN 200510032661 CN 200510032661 A CN200510032661 A CN 200510032661A CN 1644827 A CN1644827 A CN 1644827A
- Authority
- CN
- China
- Prior art keywords
- concrete
- steel
- extended end
- end plate
- compound beam
- 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
- Joining Of Building Structures In Genera (AREA)
Abstract
A node structure for combined beam and concrete column is composed of the concrete in the core region of node, steel-plate hoop, extended plate, long screw bolt, and the negative reinforcement of combined beam. Its construction method includes such steps as calculating the stress of node, and the number and diameter of long screw bolts, determining the sizes of extended plate and steel-plate hoop and making them, welding the extended plates with I-shaped beam, installing all members, pouring concrete, and turning the long screw bolts for closing the extended plate to steel-plate hoop.
Description
Technical field
The present invention relates to the Structural Engineering field in the civil engineering, specifically be meant the node structure and the job practices thereof of a kind of compound beam and concrete column.
Background technology
Steel and concrete combination beam can be given full play to the strong point of steel and two kinds of materials of concrete.China is from the initial stage fifties combined beam structure that begins one's study, and uses widely obtaining aspect highway, the railroad bridge afterwards.Aspect building construction, use compound beam than using concrete beam economy, compound beam can not considered the overall stability of beam in operational phase, give full play to steel and concrete advantage separately, it can economical with materials, alleviate superstructure weight, reduce deck-molding, strengthen rigidity and bearing capacity.
The structural system of being made up of reinforced concrete post and compound beam is compared with general concrete structural system has that function of use is good, the advantage of quick construction, compare with the steel frame system and to have the low advantage of cost, the clear height of structure has obtained reduction, the convenience that provides large bay and small proprietor freely to fit up simultaneously.In China's structural steel output cumulative year after year, the proposition of compound beam-concrete column structure system meets nation-building portion about architectural industrialization and greatly develop the requirement of construction steel.
Prior art is comparatively extensive to the research of compound beam and concrete column performance, but the research of bean column node in the structural system of compound beam and concrete column formation is still lacked at present very much.Because the structure of node and the mechanical property that stress performance directly has influence on compound beam and concrete column structure system find a kind of high performance node structure that is applicable to this structural system so present engineering circle presses in this structural system.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and shortcoming, provide that a kind of intensity height, ductility are good, the uniform compound beam of distribution of internal force and concrete column reinforcing joint structure.The present invention also aims to provide the job practices of combinations thereof beam and concrete column reinforcing joint structure.
Purpose of the present invention is achieved through the following technical solutions: this compound beam and concrete column reinforcing joint structure, it is characterized in that: described compound beam and concrete column reinforcing joint structure comprise node nuclear core district concrete, steel plate hoop, extended end plate, bolt of long stem, the negative reinforcing bar of compound beam, described steel plate hoop is wrapped in the concrete outer peripheral face in node nuclear core district, described steel plate hoop, extended end plate is positioned at the below of described negative reinforcing bar, two extended end plates are separately fixed at two end face outsides of steel plate hoop by running through the concrete bolt of long stem in node nuclear core district, and the described extended end plate outside is welded with the steel I-beam of compound beam.
In order to realize the present invention better, the welding manner of described steel I-beam and extended end plate is the V-weld welding.
End distance steel I-beam top flange external surface 20mm～50mm on the described extended end plate, end distance steel I-beam bottom flange external surface 100mm～260mm under the extended end plate;
The coagulate layer thickness of described compound beam is 100mm～260mm;
The strength of materials grade of described steel I-beam, extended end plate, steel plate hoop is Q235, Q345 or Q390, and the strength grade of the negative reinforcing bar of compound beam is HRB400, and the strength grade of bolt of long stem is 8.8 grades or 10.9 grades.
Compound beam of the present invention and concrete column reinforcing joint structure realize that by following job practices its step and process conditions are:
The first step: calculate the stressed size of described compound beam and concrete column reinforcing joint;
Second step: the position and the quantity that require to determine bolt of long stem according to structure, then according to the stressed size of node, press the calculating of plain bolt in the steel work, determine the diameter of bolt of long stem, determine the size of extended end plate according to the position of bolt of long stem, according to the thickness of elastic method calculating extended end plate, the shearing design load of computing node, and the thickness of definite steel plate hoop simultaneously;
The 3rd step: process described steel plate hoop, extended end plate, and extended end plate and steel I-beam are adopted the V-weld welding by designing requirement;
The 4th step: by template that steel I-beam, extended end plate and steel plate hoop is accurately in place at the construction field (site), bolt of long stem is installed then, the also negative reinforcing bar of the good compound beam of colligation is installed simultaneously;
The 5th step: the layer of concrete of building post concrete, node nuclear core district concrete, compound beam;
The 6th step: reach 80% design strength when node nuclear core district concrete after, tighten bolt of long stem again, make screw rod keep 200 microstrains～800 microstrains, thereby guarantee that extended end plate and steel plate hoop be close to.
The relative prior art of the present invention has following advantage and beneficial effect:
(1) intensity height, the shearing in node nuclear core of the present invention district is born jointly by described steel plate hoop and node nuclear core district concrete, because nuclear core district concrete is retrained by steel plate hoop, its stress performance shows as the stress performance of confined concrete, its intensity is greatly improved, steel plate hoop also can be given full play to its shearing resistance effect simultaneously, so the shear-carrying capacity of node of the present invention surpasses the shear-carrying capacity of the ordinary concrete beam column node of same size.
(2) ductility is good, bolted compound beam of extended end plate of the present invention and concrete column reinforcing joint structure very capacity realize " the strong node " that antidetonation needs, and make compound beam enter plasticity in advance prior to node and concrete column, because the i iron in the compound beam can make beam-ends that plasticity fully takes place, so the present invention has ductility preferably.
(3) distribution of internal force is even, the present invention is owing to adopt extended end plate, the internal force transmission of joint cores is more even, avoided stress to concentrate the local failure that causes, the core space concrete has also increased node rigidity (the rigidity backup plate spare of steel structure node provides relatively) greatly simultaneously, so node structure of the present invention is very favourable to antidetonation.
Description of drawings
Fig. 1 is the structural representation of compound beam of the present invention and concrete column reinforcing joint structure.
Fig. 2 is an A-A schematic cross-section shown in Figure 1.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Fig. 1 has provided the concrete structure of this compound beam with the concrete column reinforcing joint structure, as shown in Figure 1, this compound beam comprises node nuclear core district concrete 3 with the concrete column reinforcing joint structure, steel plate hoop 7, extended end plate 5, bolt of long stem 8, the negative reinforcing bar 1 of compound beam 6, node nuclear core district concrete 3 is concrete of compound beam 6 and concrete column 2 binding sites, steel plate hoop 7 is wrapped in the outer peripheral face of node nuclear core district concrete 3, steel plate hoop 7, extended end plate 5 is positioned at the below of negative reinforcing bar 1, two extended end plates 5 are separately fixed at 7 two end face outsides of steel plate hoop by the bolt of long stem 8 that runs through node nuclear core district concrete 3, the steel I-beam 9 of described compound beam 6 is positioned at the outside of two extended end plates 5, and welds with extended end plate 5 respectively.
Fig. 2 has provided the concrete structure of this compound beam with concrete column reinforcing joint structure A-A cross section, as shown in Figure 2, extended end plate 5 adopts V-weld to be connected with steel I-beam 9, the distance of end distance steel I-beam 9 top flange external surfaces is 20mm on the extended end plate 5, the distance of 5 times end distance steel I-beams of extended end plate bottom flange external surface is 110mm, and layer of concrete 4 thickness of compound beam 6 are 150mm.
This compound beam realizes by following job practices that with the node structure of concrete column its step and process conditions are:
The first step: design node, the positive bending moment bearing capacity and the hogging moment bearing capacity of calculation combination beam 6 are respectively 329KNm, 274KNm, according to the height 450mm and the building floor height 3000mm of node area, determine finally that by concrete specification and earthquake resistant code the shearing design load of node area is 1579KN simultaneously.
Second step: determine that according to the node area height 8 fens four lines of bolt of long stem, two row arrange, its back gauge and end distance are respectively 65mm and 55mm, then according to the moment of flexure value of beam, press the design formulas of plain bolt in the steel work, the diameter of determining bolt of long stem 8 is M30, determines that according to the position of bolt of long stem 8 size of extended end plate 5 is 290mm * 430mm, and the thickness that calculates extended end plate 5 according to elastic method is 32mm, while is according to the shearing design load of node, and the thickness of definite steel plate hoop 7 is 6mm;
The 3rd step: process steel plate hoop 7, extended end plate 5 in steel member processing plant, the distance that makes end distance steel I-beam 9 top flange external surfaces on the extended end plate 5 is that the distance of 20mm, 5 times end distance steel I-beam 9 bottom flange external surfaces of extended end plate is under the state of 110mm, adopts V-weld with extended end plate 5 and steel I-beam welding;
The 4th step: make steel I-beam 9, extended end plate 5 and steel plate hoop 7 accurately in place by template at the construction field (site), 8 bolt of long stems 8 are installed then, the also negative reinforcing bar 1 of the good compound beam 6 of colligation is installed simultaneously;
The 5th step: build post concrete 2, node nuclear core district concrete 3, compound beam concrete 4, the thickness of the layer of concrete 4 of compound beam is 150mm.
The 6th step: reach 80% design strength when node nuclear core district concrete 3 after, tighten bolt of long stem 8 again, make the high-strength screw rod 8 of stock keep 800 microstrains, guarantee that extended end plate 5 closely contacts with steel plate hoop 7.
In this compound beam and the concrete column reinforcing joint structure, the strength of materials grade of extended end plate 5, steel plate hoop 7, steel I-beam 9 is Q235; The strength grade of negative reinforcing bar 1 is HRB400; The strength grade of bolt of long stem 8 is 8.8 grades.
As mentioned above, can realize the present invention preferably.
Claims (5)
1, a kind of compound beam and concrete column reinforcing joint structure, it is characterized in that: described compound beam and concrete column reinforcing joint structure comprise the negative reinforcing bar of node nuclear core district concrete, steel plate hoop, extended end plate, bolt of long stem, compound beam, described steel plate hoop is wrapped in the concrete outer peripheral face in node nuclear core district, described steel plate hoop, extended end plate are positioned at the below of described negative reinforcing bar, two extended end plates are separately fixed at two end face outsides of steel plate hoop by running through the concrete bolt of long stem in node nuclear core district, and the described extended end plate outside is welded with the steel I-beam of compound beam.
2, by claim 1 compound beam and concrete column reinforcing joint structure, it is characterized in that: the welding manner of described steel I-beam and extended end plate is the V-weld welding.
3, by claim 1 compound beam and concrete column reinforcing joint structure, it is characterized in that: end distance steel I-beam top flange external surface 20mm～50mm on the described extended end plate, end distance steel I-beam bottom flange external surface 100mm～260mm under the extended end plate.
4, by claim 1 compound beam and concrete column reinforcing joint structure, it is characterized in that: the coagulate layer thickness of described compound beam is 100mm～260mm.
5, by the job practices of described compound beam of claim 1 and concrete column reinforcing joint structure, it is characterized in that comprising the steps and process conditions:
The first step: calculate the stressed size of described compound beam and concrete column reinforcing joint;
Second step: the position and the quantity that require to determine bolt of long stem according to structure, then according to the stressed size of node, press the calculating of plain bolt in the steel work, determine the diameter of bolt of long stem, determine the size of extended end plate according to the position of bolt of long stem, according to the thickness of elastic method calculating extended end plate, the shearing design load of computing node, and the thickness of definite steel plate hoop simultaneously;
The 3rd step: process described steel plate hoop, extended end plate, and extended end plate and steel I-beam are adopted the V-weld welding by designing requirement;
The 4th step: by template that steel I-beam, extended end plate and steel plate hoop is accurately in place at the construction field (site), bolt of long stem is installed then, the also negative reinforcing bar of the good compound beam of colligation is installed simultaneously;
The 5th step: build the layer of concrete of post concrete, node nuclear core district concrete, compound beam, the coagulate layer thickness of compound beam is 100mm～260mm;
The 6th step: reach 80% design strength when node nuclear core district concrete after, tighten bolt of long stem again, make screw rod keep 200 microstrains～800 microstrains, thereby guarantee that extended end plate and steel plate hoop be close to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510032661 CN1644827A (en) | 2005-01-04 | 2005-01-04 | Node structure for combined beam and concrete column and construction thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510032661 CN1644827A (en) | 2005-01-04 | 2005-01-04 | Node structure for combined beam and concrete column and construction thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1644827A true CN1644827A (en) | 2005-07-27 |
Family
ID=34876050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510032661 Pending CN1644827A (en) | 2005-01-04 | 2005-01-04 | Node structure for combined beam and concrete column and construction thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1644827A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063319B (en) * | 2007-03-27 | 2010-12-15 | 广东省建筑设计研究院 | Node component used for connecting steel tube concrete column with building roof beam |
| CN102733486A (en) * | 2012-06-26 | 2012-10-17 | 上海市建筑科学研究院(集团)有限公司 | High-efficiency ductile node for prefabrication assembly concrete frame |
| CN103216094A (en) * | 2013-05-08 | 2013-07-24 | 内蒙古兴泰建筑有限责任公司 | Construction method for adjustable arc-shaped beam cylindrical node assembling clamp |
| CN103243815A (en) * | 2013-04-10 | 2013-08-14 | 北京筑福国际工程技术有限责任公司 | End-anchored composite beam structure and corresponding reinforcing construction method |
| CN103410227A (en) * | 2013-08-09 | 2013-11-27 | 河北合创建筑节能科技有限责任公司 | Reinforced concrete cast-in-situ frame structure |
| CN104100006A (en) * | 2014-07-07 | 2014-10-15 | 张跃 | Girder and column connecting structure |
| CN106703432A (en) * | 2016-12-28 | 2017-05-24 | 北京城建亚泰建设集团有限公司 | Newly-added steel girder and original reinforced concrete column hoop connecting joint and connecting method thereof |
| CN106906913A (en) * | 2017-03-16 | 2017-06-30 | 浙江绿筑集成科技有限公司 | A kind of connecting node of transfer structure for SRC beams and shear wall |
| CN108613879A (en) * | 2018-04-20 | 2018-10-02 | 南京林业大学 | It is bolted wood-light aggregate concrete combination beam and method for testing performance and device |
-
2005
- 2005-01-04 CN CN 200510032661 patent/CN1644827A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063319B (en) * | 2007-03-27 | 2010-12-15 | 广东省建筑设计研究院 | Node component used for connecting steel tube concrete column with building roof beam |
| CN102733486A (en) * | 2012-06-26 | 2012-10-17 | 上海市建筑科学研究院(集团)有限公司 | High-efficiency ductile node for prefabrication assembly concrete frame |
| CN103243815A (en) * | 2013-04-10 | 2013-08-14 | 北京筑福国际工程技术有限责任公司 | End-anchored composite beam structure and corresponding reinforcing construction method |
| CN103243815B (en) * | 2013-04-10 | 2015-07-01 | 北京筑福国际工程技术有限责任公司 | End-anchored composite beam structure and corresponding reinforcing construction method |
| CN103216094A (en) * | 2013-05-08 | 2013-07-24 | 内蒙古兴泰建筑有限责任公司 | Construction method for adjustable arc-shaped beam cylindrical node assembling clamp |
| CN103216094B (en) * | 2013-05-08 | 2016-08-24 | 内蒙古兴泰建筑有限责任公司 | A kind of adjustable arc-shaped beam cylindrical node assembling clamp construction method |
| CN103410227A (en) * | 2013-08-09 | 2013-11-27 | 河北合创建筑节能科技有限责任公司 | Reinforced concrete cast-in-situ frame structure |
| CN103410227B (en) * | 2013-08-09 | 2015-12-02 | 河北合创建筑节能科技有限责任公司 | A kind of reinforced concrete cast-in-situ frame construction |
| CN104100006A (en) * | 2014-07-07 | 2014-10-15 | 张跃 | Girder and column connecting structure |
| CN106703432A (en) * | 2016-12-28 | 2017-05-24 | 北京城建亚泰建设集团有限公司 | Newly-added steel girder and original reinforced concrete column hoop connecting joint and connecting method thereof |
| CN106906913A (en) * | 2017-03-16 | 2017-06-30 | 浙江绿筑集成科技有限公司 | A kind of connecting node of transfer structure for SRC beams and shear wall |
| CN108613879A (en) * | 2018-04-20 | 2018-10-02 | 南京林业大学 | It is bolted wood-light aggregate concrete combination beam and method for testing performance and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201507031U (en) | Structural system of steel truss structural transition layer | |
| CN1884700A (en) | Bamboo bridge | |
| CN2723551Y (en) | Frame beam and pole node reinforcing device | |
| CN1644827A (en) | Node structure for combined beam and concrete column and construction thereof | |
| CN110700100A (en) | Bailey beam bundle construction method for cast-in-situ platform of high-pier small-radius curve ramp bridge | |
| CN1587531A (en) | Method for anti-cracking in hogging moment area of steel-concrete combined beam | |
| CN203668810U (en) | PC combined box girder of corrugated steel webs | |
| Zhou et al. | Transverse analysis of full-scale precast segmental box girder segments with corrugated steel webs: experimental tests and FE modelling | |
| CN111236517A (en) | Detachable prestressed reinforcement truss superimposed sheet | |
| CN2777087Y (en) | Joint structure for combined beam and concrete column | |
| CN107059646A (en) | A kind of angle-table bracket construction method of cast-in-place large span gate-type pier capping beam | |
| CN108643429B (en) | But height-adjusting's assembled coincide floor | |
| CN2918523Y (en) | Bamboo wood bridge | |
| CN109137760A (en) | The active reinforcement means of multispan normal reinforced concrete beam bridge | |
| CN112554340A (en) | Device for positioning and correcting first-layer steel structure column and construction method | |
| CN209741646U (en) | Thin connecting component between main beam and abutment of corrugated steel web composite bridge | |
| CN110777679A (en) | Method for reinforcing, lifting and transforming truss of deck type arch bridge | |
| Nie et al. | Mechanical behavior of composite joints for connecting existing concrete bridges and steel–concrete composite beams | |
| CN213951909U (en) | Tubular connecting piece suitable for steel-concrete composite structure | |
| CN1082028C (en) | Straightening method for main beam of crane | |
| CN1730827A (en) | Profiled steel sheet steel-concrete combined bridge | |
| CN112878508A (en) | Repairable assembly type reinforced concrete column-steel beam column joint and construction method thereof | |
| CN112030706A (en) | Prefabricated bridge pier and capping beam connecting system for assembled beam bridge and construction method of prefabricated bridge pier and capping beam connecting system | |
| Lin | Rehabilitation and Strengthening of Aged Steel Railway Bridges in Japan | |
| CN111910535A (en) | Nondestructive reinforcement supporting system for single-column pier bridge and construction method |
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: 20050727 |