CN104631619A - U-shaped steel vertical connection assembled integral type frame and construction method thereof - Google Patents
U-shaped steel vertical connection assembled integral type frame and construction method thereof Download PDFInfo
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- CN104631619A CN104631619A CN201410798912.8A CN201410798912A CN104631619A CN 104631619 A CN104631619 A CN 104631619A CN 201410798912 A CN201410798912 A CN 201410798912A CN 104631619 A CN104631619 A CN 104631619A
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Abstract
The invention discloses a U-shaped steel vertical connection reinforced concrete assembled integral type frame and a construction method thereof. The frame comprises a reinforced concrete fabricated column (1) with a short beam section (3), a reinforced concrete fabricated beam (2) and U-shaped steel (4). The end, with the short beam section (3), of the reinforced concrete fabricated column (1), is provided with a first vertical bolt hole (51). A second vertical bolt hole (52) is formed in a web plate of the U-shaped steel (4), the two ends of the reinforced concrete fabricated beam (2) are provided with third vertical bolt holes (53) respectively, the reinforced concrete fabricated column (1) and the reinforced concrete fabricated beam (2) are connected through the U-shaped steel (4) and a vertical friction type bolt (6), an engineered cement-based composite material (7) is poured on the connection area, and therefore the assembled integral type frame is formed. The assembled integral frame has the advantages that internal force transfer is clear and reliable, stress is simple and reasonable, the construction method is convenient, fast and efficient, the overall performance is good, and the anti-seismic property is good.
Description
Technical field:
The present invention relates to steel concrete prefabricated integral frame and construction method thereof that a kind of U-shaped steel vertically connects, belong to construction work concrete frame structure technology and construction field.
Technical background:
Reinforced concrete prefabricated prefabricated integral frame structure is the important directions of future architecture industrialization development; there is economic cycle short; prefabricated units quality is high; situ wet operation is few; environment pollution is little; accelerating construction progress, reduces labor strength, and is conducive to the advantages such as energy-saving and cost-reducing protection of the environment.This structural system is widely applied in developed country, and has become the principal mode of some national new buildings.Link technique is the key problem that reinforced concrete prefabricated assembled integral mixes frame construction, also be the weak link of assembling frame structure, only have between each prefabricated units and have reliable connection, there is good overall performance and good ductility, guarantee structure is both safe and reliable, has and has good anti-seismic performance.
China's existing steel concrete prefabricated integral frame node connection reliability is poor, be difficult to meet the requirement of structure cracking resistance and globality, anti-seismic performance aspect, this just needs to develop the new node being convenient to globality connection, to accelerate the process that China's industrialization of construction industry is produced.Novel steel concrete prefabricated integral frame link technique needs reliable quality of connection to realize the internal force transmitting regulation by designing requirement, and ensures the requirement of overall structure safety, globality, shock resistance; Then simplify connecting structure and construction technology as far as possible, reduce the uncertain impact on structural performance in construction, to improve the efficiency of construction that node connects.
Summary of the invention:
Technical problem: the invention provides steel concrete prefabricated integral frame and construction method thereof that a kind of U-shaped steel vertically connects, make to be connected between reinforced concrete prefabricated column with precast beam simple and reliable, constructing operation is convenient, accelerate construction speed, greatly improve production efficiency, beam-to-column joint district has good ductility simultaneously, and framework has good overall performance and anti-seismic performance.
Technology contents: unresolved above-mentioned technical problem, the invention provides the steel concrete prefabricated integral frame that a kind of U-shaped steel vertically connects, this framework comprises the reinforced concrete prefabricated column of subsidiary short beam section, the reinforced concrete prefabricated beam be connected with reinforced concrete prefabricated column and U-shaped steel;
The subsidiary short beam section end of reinforced concrete prefabricated column is with vertical first bolt hole, with vertical second bolt hole above U-shaped steel web, reinforced concrete prefabricated beam both ends are respectively with vertical 3rd bolt hole, by U-shaped steel and vertical friction-type bolt, reinforced concrete prefabricated column is connected with reinforced concrete prefabricated beam, build engineered cementitious based composites or fiber reinforced cement-based composite material at reinforced concrete prefabricated column and reinforced concrete prefabricated beam bonding pad, made structure become prefabricated integral frame.Present invention also offers the construction method of the steel concrete prefabricated integral frame that a kind of U-shaped steel vertically connects, the method comprises the steps:
Step 1: the global analysis carrying out steel concrete prefabricated integral frame structure, determines the sectional dimension of reinforced concrete prefabricated column, reinforced concrete prefabricated beam, steel strength grade and amount of reinforcement; Determine the segmentation situation of reinforced concrete prefabricated column, reinforced concrete prefabricated beam: the waypoint of reinforced concrete prefabricated column is arranged in the middle part of floor, choose the moment of flexure inflection point place of upper and lower floor as segmentation foundation, and subsidiary prefabricated short beam section, the waypoint of reinforced concrete prefabricated beam is arranged on the end of reinforced concrete prefabricated beam, apart from post limit 1 ~ 2h, h is precast beam height, according to the moment of flexure inflection point at reinforced concrete prefabricated beam two ends as segmentation foundation; After reinforced concrete prefabricated column and reinforced concrete prefabricated beam segmentation complete, require according to the reinforced concrete prefabricated column of reinforced concrete prefabricated column and reinforced concrete prefabricated Liang Fenduanchu and reinforced concrete prefabricated beam bending resistance and shear Design the concrete size determining U-shaped steel;
Step 2: make reinforced concrete prefabricated column and reinforced concrete prefabricated beam; Reinforced concrete prefabricated column and reinforced concrete prefabricated beam is made by the designing requirement of step 1, wherein reinforced concrete prefabricated column is with short beam section, and reinforced concrete prefabricated beam two ends attach short beam section end with vertical first bolt hole with vertical 3rd bolt hole, reinforced concrete prefabricated column;
Step 3: the connection of reinforced concrete prefabricated beam and reinforced concrete prefabricated column, after reinforced concrete prefabricated column installation, by horizontal for reinforced concrete prefabricated beam hoisted in position, same level absolute altitude place is positioned at the subsidiary short beam section of reinforced concrete prefabricated column, vertical for U-shaped steel the second bolt hole is alignd with reserved first bolt hole of reinforced concrete prefabricated column and reserved vertical 3rd bolt hole of reinforced concrete prefabricated beam, with vertical friction type high strength bolt by the concrete prefabricated beam of U-shaped steel connecting reinforcement and reinforced concrete prefabricated column, then engineered cementitious based composites or fiber reinforced cement-based composite material is built at reinforced concrete prefabricated beam and reinforced concrete prefabricated column bonding pad, reinforced concrete prefabricated beam is made to become as a whole with reinforced concrete prefabricated column, complete the making of steel concrete prefabricated integral frame.
Beneficial effect: compared with prior art, tool of the present invention has the following advantages:
(1) reinforced concrete prefabricated column is with short beam section, and bean column node is integral prefabricated, and node has good overall performance and anti-seismic performance;
(2) reinforced concrete prefabricated column is connected with precast beam by the vertical high strength friction-type bolt of U-shaped steel, and connected mode is simple, and framework overall performance is good, and constructing operation is convenient;
(3) reinforced concrete prefabricated beam end prepared screw-bolt hole, can be connected with prefabricated post short beam section end by the vertical high strength friction-type bolt of U-shaped steel after precast beam lifting puts in place, scaffold temporary support precast beam need not be used again, save correlative charges, node end rigidity can be strengthened on the other hand, make areas of plasticity hinge leave node area, improve node connectivity energy;
(4) beam-to-column joint district adopts engineered cementitious based composites or fiber reinforced cement-based composite material to build, both bonding pad crack developing form had been improved, avoid the cracking of New-old concrete joint surface, the energy dissipation ability of bonding pad can be improved again greatly, make this invention steel concrete assembled integral become the ductile frame of good seismic performance.
Accompanying drawing illustrates:
Fig. 1 is the steel concrete prefabricated integral frame elevation that U-shaped steel vertically connects;
Fig. 2 is the steel concrete prefabricated integral frame plan view that U-shaped steel vertically connects;
Fig. 3 is the U-shaped steel elevation in strap bolt hole;
Fig. 4 is the U-shaped steel sectional drawing in strap bolt hole.
Reinforced concrete prefabricated column 1, reinforced concrete prefabricated beam 2, short beam section 3, U-shaped steel 4, vertical first bolt hole 51, second bolt hole 52, vertical 3rd bolt hole 53; Vertical friction-type bolt 6; Engineered cementitious based composites or fiber reinforced cement-based composite material 7.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention will be further described.、
See Fig. 1-4, the steel concrete prefabricated integral frame that a kind of U-shaped steel provided by the invention vertically connects, this framework comprises the reinforced concrete prefabricated column 1 of subsidiary short beam section 3, the reinforced concrete prefabricated beam 2 be connected with reinforced concrete prefabricated column 1 and U-shaped steel 4;
Subsidiary short beam section 3 end of reinforced concrete prefabricated column 1 is with vertical first bolt hole 51, with the second bolt hole 52 above U-shaped steel 4 web, reinforced concrete prefabricated beam 2 both ends are respectively with vertical 3rd bolt hole 53, by U-shaped steel 4 and vertical friction-type bolt 6, reinforced concrete prefabricated column 1 is connected with reinforced concrete prefabricated beam 2, build engineered cementitious based composites or fiber reinforced cement-based composite material 7 at reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2 bonding pad, made structure become prefabricated integral frame.
Present invention also offers the construction method of the steel concrete prefabricated integral frame that a kind of U-shaped steel vertically connects, the method comprises the steps:
Step 1: the global analysis carrying out steel concrete prefabricated integral frame structure, determines the sectional dimension of reinforced concrete prefabricated column 1, reinforced concrete prefabricated beam 2, steel strength grade and amount of reinforcement; Determine the segmentation situation of reinforced concrete prefabricated column 1, reinforced concrete prefabricated beam 2: the waypoint of reinforced concrete prefabricated column 1 is arranged in the middle part of floor, choose the moment of flexure inflection point place of upper and lower floor as segmentation foundation, and subsidiary prefabricated short beam section 3, the waypoint of reinforced concrete prefabricated beam 2 is arranged on the end of reinforced concrete prefabricated beam, apart from post limit 1 ~ 2h, h is precast beam height, according to the moment of flexure inflection point at reinforced concrete prefabricated beam 2 two ends as segmentation foundation; After reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2 segmentation complete, require according to the reinforced concrete prefabricated column 1 of reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2 segmentation place and reinforced concrete prefabricated beam 2 bending resistance and shear Design the concrete size determining U-shaped steel 4;
Step 2: make reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2; Reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2 is made by the designing requirement of step 1, wherein reinforced concrete prefabricated column 1 is with short beam section 3, and reinforced concrete prefabricated beam 2 two ends attach short beam section 3 end with vertical first bolt hole 51 with vertical 3rd bolt hole 53, reinforced concrete prefabricated column 1;
Step 3: the connection of reinforced concrete prefabricated beam 2 and reinforced concrete prefabricated column 1, after reinforced concrete prefabricated column 1 installation, by the horizontal hoisted in position of reinforced concrete prefabricated beam 2, same level absolute altitude place is positioned at the subsidiary short beam section 3 of reinforced concrete prefabricated column 1, U-shaped steel 4 bolt hole 52 is alignd with reserved first bolt hole 51 of reinforced concrete prefabricated column 1 and reserved vertical 3rd bolt hole 53 of reinforced concrete prefabricated beam 2, with vertical friction type high strength bolt 6 by the concrete prefabricated beam 2 of U-shaped steel 4 connecting reinforcement and reinforced concrete prefabricated column 1, then engineered cementitious based composites or fiber reinforced cement-based composite material 7 is built at reinforced concrete prefabricated beam 2 and reinforced concrete prefabricated column 1 bonding pad, make reinforced concrete prefabricated beam 2 as a whole with reinforced concrete prefabricated column 1 one-tenth, complete the making of steel concrete prefabricated integral frame.
Detailed speech it, as Figure 1-4, the steel concrete prefabricated integral frame that a kind of U-shaped steel vertically connects, comprise the reinforced concrete prefabricated column 1 of subsidiary short beam section 3, reinforced concrete prefabricated beam 2, U-shaped steel 4, high strength friction-type bolt 6, engineered cementitious based composites or fiber reinforced cement-based composite material 7.
Subsidiary short beam section 3 end of reinforced concrete prefabricated column 1 is with vertical first bolt hole 51, with vertical second bolt hole 52 above U-shaped steel 4 web, reinforced concrete prefabricated beam 2 both ends are respectively with vertical 3rd bolt hole 53, by U-shaped steel 4 and vertical high strength friction-type bolt 6, reinforced concrete prefabricated column 1 is connected with reinforced concrete prefabricated beam 2, build engineered cementitious based composites or fiber reinforced cement-based composite material 7 at reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2 bonding pad, make structure become prefabricated integral frame.
Locate want accurately with vertical second bolt hole 52, other vertical 3rd bolt hole 53 of reinforced concrete prefabricated beam 2 two end portions above vertical first bolt hole 51 of subsidiary short beam section 3 end of reinforced concrete prefabricated column 1, U-shaped steel 4 web, after ensureing the subsidiary short beam section 3 of reinforced concrete prefabricated column 1, reinforced concrete prefabricated beam 2, the triplicity of U-shaped steel, bolt hole can align, and facilitates high strength friction-type bolt 6 to pass through.Make at reinforced concrete prefabricated column 1, reinforced concrete prefabricated beam 2, transport and in installation process, note protecting bolt hole, avoid bolt hole damage.
A construction method for the steel concrete prefabricated integral frame that U-shaped steel vertically connects, concrete steps are as follows:
(1) carry out the global analysis of steel concrete prefabricated integral frame structure, determine the sectional dimension of reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2, steel strength grade and amount of reinforcement; Determine the segmentation situation of reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2: the waypoint of reinforced concrete prefabricated column 1 should be arranged in the middle part of floor, choose the moment of flexure inflection point place of upper and lower floor as segmentation foundation, and subsidiary prefabricated short beam section 3, the waypoint of reinforced concrete prefabricated beam 2 is arranged on the end of beam, apart from post limit 1 ~ 2h, h is reinforced concrete prefabricated depth of beam, according to the moment of flexure inflection point at reinforced concrete prefabricated beam 2 two ends as segmentation foundation; After reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2 segmentation complete, require according to the beam column bending resistance of reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2 segmentation place and shear Design the concrete size determining U-shaped steel 4;
(2) make reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2; By designing requirement above at making reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2, wherein reinforced concrete prefabricated column 1 is with short beam section 3, and reinforced concrete prefabricated beam 2 two ends attach short beam section 3 end with vertical first bolt hole 51 with vertical 3rd bolt hole 53, reinforced concrete prefabricated column 1 two ends and prefabricated post;
(3) the connection of reinforced concrete prefabricated beam 2 and reinforced concrete prefabricated column 1, after reinforced concrete prefabricated column 1 installation, by the horizontal hoisted in position of reinforced concrete prefabricated beam 2, same level absolute altitude place is positioned at the subsidiary short beam section 3 of reinforced concrete prefabricated column 1, vertical for U-shaped steel 4 second bolt hole 52 is alignd with reserved vertical second bolt hole 51 of reinforced concrete prefabricated column 1 and reserved vertical 3rd bolt hole 53 of reinforced concrete prefabricated beam 2, with vertical friction type high strength bolt 6 by the concrete prefabricated beam 2 of U-shaped steel 4 connecting reinforcement and reinforced concrete prefabricated column 1, then engineered cementitious based composites or fiber reinforced cement-based composite material is built at reinforced concrete prefabricated column 1 and reinforced concrete prefabricated beam 2 bonding pad, make reinforced concrete prefabricated beam 2 as a whole with reinforced concrete prefabricated column 1 one-tenth, complete the making of steel concrete prefabricated integral frame.
Claims (2)
1. the steel concrete prefabricated integral frame that vertically connects of a U-shaped steel, it is characterized in that, this framework comprises the reinforced concrete prefabricated column (1) of subsidiary short beam section (3), the reinforced concrete prefabricated beam (2) be connected with reinforced concrete prefabricated column (1) and U-shaped steel (4);
The subsidiary short beam section end (3) of reinforced concrete prefabricated column (1) is with vertical first bolt hole (51), with vertical second bolt hole (52) above U-shaped steel (4) web, reinforced concrete prefabricated beam (2) both ends are respectively with vertical 3rd bolt hole (53), by U-shaped steel (4) and vertical friction-type bolt (6), reinforced concrete prefabricated column (1) is connected with reinforced concrete prefabricated beam (2), engineered cementitious based composites or fiber reinforced cement-based composite material (7) has been built at reinforced concrete prefabricated column (1) and reinforced concrete prefabricated beam (2) bonding pad, structure is made to become prefabricated integral frame.
2. the construction method of steel concrete prefabricated integral frame that vertically connects of U-shaped steel, it is characterized in that, the method comprises the steps:
Step 1: the global analysis carrying out steel concrete prefabricated integral frame structure, determines the sectional dimension of reinforced concrete prefabricated column (1), reinforced concrete prefabricated beam (2), steel strength grade and amount of reinforcement; Determine the segmentation situation of reinforced concrete prefabricated column (1), reinforced concrete prefabricated beam (2): the waypoint of reinforced concrete prefabricated column (1) is arranged in the middle part of floor, choose the moment of flexure inflection point place of upper and lower floor as segmentation foundation, and subsidiary prefabricated short beam section (3), the waypoint of reinforced concrete prefabricated beam (2) is arranged on the end of reinforced concrete prefabricated beam, apart from post limit 1 ~ 2h, h is precast beam height, according to the moment of flexure inflection point at reinforced concrete prefabricated beam (2) two ends as segmentation foundation; After reinforced concrete prefabricated column (1) and reinforced concrete prefabricated beam (2) segmentation complete, require according to the reinforced concrete prefabricated column (1) of reinforced concrete prefabricated column (1) and reinforced concrete prefabricated beam (2) segmentation place and (2) bending resistance of reinforced concrete prefabricated beam and shear Design the concrete size determining U-shaped steel (4);
Step 2: make reinforced concrete prefabricated column (1) and reinforced concrete prefabricated beam (2); Reinforced concrete prefabricated column (1) and reinforced concrete prefabricated beam (2) is made by the designing requirement of step 1, wherein reinforced concrete prefabricated column (1) is with short beam section (3), and reinforced concrete prefabricated beam (2) two ends attach short beam section (3) end with vertical first bolt hole (51) with vertical 3rd bolt hole (53), reinforced concrete prefabricated column (1);
Step 3: the connection of reinforced concrete prefabricated beam (2) and reinforced concrete prefabricated column (1); after reinforced concrete prefabricated column (1) installation, by reinforced concrete prefabricated beam (2) horizontal hoisted in position, same level absolute altitude place is positioned at the subsidiary short beam section (3) of reinforced concrete prefabricated column (1), vertical for U-shaped steel (4) the second bolt hole (52) is alignd with reserved vertical first bolt hole (51) of reinforced concrete prefabricated column (1) and reserved vertical 3rd bolt hole (53) of reinforced concrete prefabricated beam (2), with vertical friction type high strength bolt (6) by the concrete prefabricated beam of U-shaped steel (4) connecting reinforcement (2) and reinforced concrete prefabricated column (1), then engineered cementitious based composites or fiber reinforced cement-based composite material (7) is built at reinforced concrete prefabricated beam (2) and reinforced concrete prefabricated column (1) bonding pad, reinforced concrete prefabricated beam (2) is made to become as a whole with reinforced concrete prefabricated column (1), complete the making of steel concrete prefabricated integral frame.
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| JPH04261934A (en) * | 1991-02-15 | 1992-09-17 | Ohbayashi Corp | Building frame construction method using form member made of pre-cast concrete |
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| CN103104040A (en) * | 2013-03-08 | 2013-05-15 | 郑州大学 | Assembled framework beam-column joint adopting vertical connection and construction method thereof |
| CN203113524U (en) * | 2013-03-08 | 2013-08-07 | 郑州大学 | Assembled type framework beam column node using horizontal connection |
| CN203755443U (en) * | 2014-02-18 | 2014-08-06 | 沈阳远大科技创业园有限公司 | Assembly integrated type overlapping frame structure |
| CN104131616A (en) * | 2014-07-16 | 2014-11-05 | 长沙理工大学 | Self-restoration prefabricated reinforced concrete frame |
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2014
- 2014-12-19 CN CN201410798912.8A patent/CN104631619A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04261934A (en) * | 1991-02-15 | 1992-09-17 | Ohbayashi Corp | Building frame construction method using form member made of pre-cast concrete |
| JP2000160677A (en) * | 1998-11-26 | 2000-06-13 | Tobu Yachida Kensetsu Kk | Connection method for h-shaped steel beam, and jointing tool |
| CN103104040A (en) * | 2013-03-08 | 2013-05-15 | 郑州大学 | Assembled framework beam-column joint adopting vertical connection and construction method thereof |
| CN203113524U (en) * | 2013-03-08 | 2013-08-07 | 郑州大学 | Assembled type framework beam column node using horizontal connection |
| CN203755443U (en) * | 2014-02-18 | 2014-08-06 | 沈阳远大科技创业园有限公司 | Assembly integrated type overlapping frame structure |
| CN104131616A (en) * | 2014-07-16 | 2014-11-05 | 长沙理工大学 | Self-restoration prefabricated reinforced concrete frame |
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