CN108086706A - Beam-string structure system and its construction method in portal-rigid frames reinforcing - Google Patents
Beam-string structure system and its construction method in portal-rigid frames reinforcing Download PDFInfo
- Publication number
- CN108086706A CN108086706A CN201711188088.4A CN201711188088A CN108086706A CN 108086706 A CN108086706 A CN 108086706A CN 201711188088 A CN201711188088 A CN 201711188088A CN 108086706 A CN108086706 A CN 108086706A
- Authority
- CN
- China
- Prior art keywords
- girder steel
- portal
- extended segment
- lower edge
- structure system
- 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.)
- Withdrawn
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 20
- 238000010276 construction Methods 0.000 title claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 abstract description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
A kind of beam-string structure system in being reinforced the invention discloses portal-rigid frames, roof girder steel both sides lower end is fixed with lower pendant, prestressed stretch-draw has lower edge in two lower pendants, interval is supported with lower support bar between lower edge and girder steel, lower support bar lower end is fixedly connected with lower edge, and post upper is hinged with girder steel.In the present invention, active reinforcing mode is belonged to using the external prestressing strengthening technology of beam-string structure system, after tensioned prestressing bar, presstressed reinforcing steel shifts to an earlier date stress, it works asynchronously with original structure component, stress difference is not present in the two, and is reinforced using external prestressing technique, to the current Influence to operation very little of original building, it can be reinforced under conditions of use is not limited, lower pendant is fixed in girder steel both sides lower end, lower pendant is set to facilitate tensioning lower edge, and the lower edge that tensioning is formed more balances.
Description
Technical field
A kind of beam-string structure system in being reinforced the present invention relates to portal-rigid frames.The invention further relates to above-mentioned portal-rigid frames to add
The construction method of beam-string structure system in Gu.
Background technology
With reform and opening-up, since the eighties in last century, China has built substantial amounts of industrial premises.With work in recent years
The development of industry modernization, large quantities of Portal Rigid Frame Factory Structures that early period builds generally face using changes of function and cause structure
The problem of load increase, this causes original structural-load-carrying capacity to have been unable to meet current specifications requirement, is badly in need of reinforcing.
Conventional portal-rigid frames reinforcing generally is passive type reinforcing, and generally use uses increasing section, adds rest etc.
Method is reinforced, and newly-increased component has secondary loading, can not ensure with original structure cooperative bearing, only when load-bearing reaches
During to certain value, newly-increased component just works, and causing original structure component, there are stress differences with newly-increased component.And newly-increased structure
Part and the direct welding job amount of former component are big, can not ensure construction quality, in the welding process in fusion pair after the melting of steel
Original structure intensity also has considerable damage.And the reinforcing mode of traditional increasing section influences very existing building clear height
Greatly, the use function of existing building is seriously affected；And traditional reinforcing mode is typically necessary setting temporary support, occupies factory
The production space in room so that workshop normal operation can not carry out.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of door that can preferably strengthen Portal Rigid Frame Factory Structure
Beam-string structure system in the reinforcing of formula rigid frame.The technical problems to be solved by the invention are to provide a kind of above-mentioned portal-rigid frames and reinforce
In beam-string structure system construction method.
For this purpose, the beam-string structure system in portal-rigid frames reinforcing provided by the invention, roof girder steel both sides lower end is fixed with
Lower pendant, prestressed stretch-draw has lower edge in two lower pendants, and interval is supported with lower support bar between lower edge and girder steel, under lower support bar
End is fixedly connected with lower edge, and lower support bar upper end is hinged with girder steel.
The construction method of beam-string structure system in being reinforced the present invention also provides above-mentioned portal-rigid frames, it is characterized in that：Bag
Include following steps：A, the lower pendant is fixed on the downside of girder steel both ends；B, each lower support bar upper end is articulated on the downside of girder steel, under
Supporting rod lower end is fixedly connected with lower edge；C, the lower edge is pre-tightened into tensioning between the lower pendant at both ends；D, in side column upper end
Extended segment in setting sets side extended segment in the side of girder steel, and the one end that will wind up is connected through roof with girder steel, the other end is set up
It is connected in the end of upper extended segment and side extended segment with side column and pre-tightens tensioning.
The technique effect of the present invention：
1st, active reinforcing mode is belonged to using the external prestressing strengthening technology of beam-string structure system, after tensioned prestressing bar, in advance
Stress rib shifts to an earlier date stress, works asynchronously with original structure component, and stress difference is not present in the two；
2nd, due to presstressed reinforcing steel scale of construction very little itself, presstressed reinforcing steel the space occupied is seldom after reinforcing, can adapt to below girder steel
Small space；
3rd, the lower edge arrangement that prestress wire is formed is flexible, can be according to the position of equipment installation flexible arrangement steel strand wires
It puts, and the workload very little welded is needed in work progress, it is guaranteed to construction quality；
4th, reinforced using external prestressing technique, to the current Influence to operation very little of original building, the condition that uses can not limited
Under reinforced；
5th, lower pendant is fixed in girder steel both sides lower end, lower pendant is set to facilitate tensioning lower edge, and the lower edge that tensioning is formed is more flat
Weighing apparatus.
Description of the drawings
Fig. 1 is the beam-string structure architectural schematic during the portal-rigid frames that the first embodiment of the invention provides are reinforced.
Fig. 2 is the structure diagram of the U-shaped clip in Fig. 1.
Fig. 3 is the beam-string structure architectural schematic during the portal-rigid frames that second of embodiment of the invention provides are reinforced.
Specific embodiment
The present invention is further described in detail below with reference to the accompanying drawings and embodiments, described in specific embodiment
It is only used to explain the present invention, be not intended to limit the present invention.
It is shown in reference picture 1, Fig. 2, the beam-string structure system in the portal-rigid frames reinforcing that the first embodiment of the invention provides,
1 both sides lower end of factory roof girder steel is fixed with lower pendant 2, and lower pendant 2 uses bracket structure, prestressed stretch-draw in two lower pendants 2
There is lower edge 3, interval is supported with lower support bar 4 between lower edge 3 and girder steel 1, and 4 lower end of lower support bar is fixedly connected with lower edge 3, lower branch
4 upper end of strut is hinged with girder steel 1.In the present embodiment, the two side ends of portal-rigid frames are set up on side column 5, are fixed on side column 5
Upper extended segment 9,1 side of girder steel carry side extended segment 11, wind up 12 one end it is oblique be connected with girder steel 1, the other end process
The end of the upper extended segment 9 and the end of side extended segment 11 pre-tighten with 5 tensioning of side column and connect, described to wind up 12 through on described
The perforation of extended segment 9, winding up in the structure 12 makes full use of narrow space, by pretightning force in a manner that turnover pre-tightens connection
Be distributed on extended segment 9, side extended segment 11 and side column 5, and 1 top of girder steel be subject to wind up 12 oblique pull after further enhance
Bearing capacity.
Beam-string structure system in being reinforced with reference to the portal-rigid frames that shown in Fig. 3, second of embodiment of the present invention provides and the
A kind of embodiment is essentially identical, differs only in：In order to preferably strengthen side column 5, while strengthen girder steel 1 again, the gate-type is firm
The outside of side column 5 of frame is provided with reinforcing prop 6, reinforcing prop 6 be close to 5 outside of side column and along side column short transverse using U-shaped clip 7 with
Side column banding, 7 openend of U-shaped clip are tensed using bolt 8, and 6 upper end of reinforcing prop is using bolt 8 and the outboard end of girder steel 1
It is fixedly connected.
It is shown in reference picture 1, Fig. 2, the portal-rigid frames that above-mentioned the first embodiment provides reinforce in beam-string structure system
Construction method comprises the following steps：A, the lower pendant 2 is fixed on the downside of 1 both ends of girder steel；B, each 4 upper end of lower support bar is cut with scissors
1 downside of girder steel is connected to, 4 lower end of lower support bar is fixedly connected with lower edge 3；C, the lower edge 3 is pre-tightened into tensioning in the lower extension at both ends
Between part 2；Extended segment in side column upper end is set, side extended segment is set in the side of girder steel D, the one end that will wind up passes through roof
It is connected with girder steel, the other end is erected at upper extended segment and the end of side extended segment is connected with side column and pre-tightens tensioning.
Claims (4)
1. the beam-string structure system in a kind of portal-rigid frames reinforcing, it is characterized in that：Roof girder steel both sides lower end is fixed with lower pendant,
Prestressed stretch-draw has lower edge in two lower pendants, and interval is supported with lower support bar between lower edge and girder steel, and lower support bar lower end is under
String is fixedly connected, and post upper is hinged with girder steel.
2. the beam-string structure system in portal-rigid frames reinforcing according to claim 1, it is characterized in that：The portal-rigid frames
Two side ends are set up on side column, and extended segment is fixed on side column, and the girder steel side carries side extended segment, and the one end winded up is oblique
To be connected with girder steel, the other end pre-tightens connection by end and the side column tensioning of the end and side extended segment of the upper extended segment.
3. the beam-string structure system in portal-rigid frames reinforcing according to claim 1, it is characterized in that：It is described to wind up through institute
State the perforation of extended segment.
4. the construction method of the beam-string structure system in portal-rigid frames reinforcing described in a kind of claim 1, it is characterized in that：Including with
Lower step：A, the lower pendant is fixed on the downside of girder steel both ends；B, each lower support bar upper end is articulated on the downside of girder steel, lower support
Bar lower end is fixedly connected with lower edge；C, the lower edge is pre-tightened into tensioning between the lower pendant at both ends；D, set in side column upper end
Upper extended segment sets side extended segment in the side of girder steel, will wind up one end through on roof is connected with girder steel, the other end is erected at
The end of extended segment and side extended segment is connected with side column and pre-tightens tensioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711188088.4A CN108086706A (en) | 2017-11-24 | 2017-11-24 | Beam-string structure system and its construction method in portal-rigid frames reinforcing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711188088.4A CN108086706A (en) | 2017-11-24 | 2017-11-24 | Beam-string structure system and its construction method in portal-rigid frames reinforcing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108086706A true CN108086706A (en) | 2018-05-29 |
Family
ID=62172908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711188088.4A Withdrawn CN108086706A (en) | 2017-11-24 | 2017-11-24 | Beam-string structure system and its construction method in portal-rigid frames reinforcing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086706A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779277A (en) * | 2019-01-09 | 2019-05-21 | 国粮武汉科学研究设计院有限公司 | Steel-structure factory building Enlargement of Section reinforcement of weld construction method |
| CN113250484A (en) * | 2021-05-21 | 2021-08-13 | 安徽海螺建材设计研究院有限责任公司 | Concrete warehouse external truss repairing method and concrete warehouse external truss repairing structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0492046A (en) * | 1990-08-07 | 1992-03-25 | Kurosawa Kensetsu Kk | Composite beam structure |
| CN201660966U (en) * | 2010-02-02 | 2010-12-01 | 中冶建筑研究总院有限公司 | Mast suspension cable joist tensile integral structure |
| CN203924483U (en) * | 2014-06-11 | 2014-11-05 | 江苏科技大学 | A kind of truss string structure of built-in oblique guy rope |
| CN106978883A (en) * | 2017-03-31 | 2017-07-25 | 天津城建大学 | A kind of folding beam string |
| CN208152606U (en) * | 2017-11-24 | 2018-11-27 | 温州东瓯建设集团有限公司 | Beam-string structure system in portal-rigid frames reinforcing |
-
2017
- 2017-11-24 CN CN201711188088.4A patent/CN108086706A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0492046A (en) * | 1990-08-07 | 1992-03-25 | Kurosawa Kensetsu Kk | Composite beam structure |
| CN201660966U (en) * | 2010-02-02 | 2010-12-01 | 中冶建筑研究总院有限公司 | Mast suspension cable joist tensile integral structure |
| CN203924483U (en) * | 2014-06-11 | 2014-11-05 | 江苏科技大学 | A kind of truss string structure of built-in oblique guy rope |
| CN106978883A (en) * | 2017-03-31 | 2017-07-25 | 天津城建大学 | A kind of folding beam string |
| CN208152606U (en) * | 2017-11-24 | 2018-11-27 | 温州东瓯建设集团有限公司 | Beam-string structure system in portal-rigid frames reinforcing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779277A (en) * | 2019-01-09 | 2019-05-21 | 国粮武汉科学研究设计院有限公司 | Steel-structure factory building Enlargement of Section reinforcement of weld construction method |
| CN113250484A (en) * | 2021-05-21 | 2021-08-13 | 安徽海螺建材设计研究院有限责任公司 | Concrete warehouse external truss repairing method and concrete warehouse external truss repairing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104975566B (en) | Apply the steel pipe support in cable-stayed bridge arch tower is constructed | |
| CN101581074B (en) | Large-span steel truss arch construction method | |
| CN103643800B (en) | The erection & lift system of buckling-restrained bracing member and construction method thereof | |
| CN208152606U (en) | Beam-string structure system in portal-rigid frames reinforcing | |
| CN111119494A (en) | High-altitude in-situ construction method for ultra-large span string arched steel structure | |
| CN114215170A (en) | Method for lifting super-altitude giant hanging multi-layer connected structure | |
| CN111794381A (en) | Reverse cable-stayed device for installing cable-supported grid steel structure and implementation method thereof | |
| CN108086706A (en) | Beam-string structure system and its construction method in portal-rigid frames reinforcing | |
| CN111827678A (en) | A hoisting method of truss steel structure at the top of a silo | |
| CN206599919U (en) | A kind of integral prefabricated reinforcing bar web frame of shear wall | |
| CN110056218B (en) | Single-storey factory building column-drawing steel frame structure | |
| CN108643364A (en) | Single-arch progressive net rack mounting method | |
| CN208152607U (en) | Beam-string structure system in the reinforcing of large span rigid frame | |
| CN117627374A (en) | Large-span truss anti-sedimentation installation construction process | |
| CN108086707A (en) | Beam-string structure system and its construction method in the reinforcing of large span rigid frame | |
| CN210917735U (en) | Supporting jig frame structure for large-span prestressed inhaul cable structure | |
| CN112281685B (en) | Lifting construction method of steel arch structure | |
| CN205617805U (en) | Steel jig frame for daylighting roof steel structure construction | |
| CN213112170U (en) | Box girder prefabricating field steel reinforcement framework lifting appliance | |
| CN104085832A (en) | Flexible component lifting device and lifting method thereof | |
| CN212475790U (en) | Integral hoisting device for roof color steel plate | |
| CN108517970A (en) | A kind of large-span truss hanging method | |
| CN215760347U (en) | A temporary steel truss device for the roof construction of cement silo | |
| CN207277212U (en) | A kind of novel steel beam floorings construction formwork supporting structure | |
| CN217325017U (en) | Bent cap construction bracket with mounting platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180529 |
|
| WW01 | Invention patent application withdrawn after publication |