CN204001810U - A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire - Google Patents

A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire Download PDF

Info

Publication number
CN204001810U
CN204001810U CN201420374984.5U CN201420374984U CN204001810U CN 204001810 U CN204001810 U CN 204001810U CN 201420374984 U CN201420374984 U CN 201420374984U CN 204001810 U CN204001810 U CN 204001810U
Authority
CN
China
Prior art keywords
steel
concrete column
girder
fire
profile
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.)
Expired - Fee Related
Application number
CN201420374984.5U
Other languages
Chinese (zh)
Inventor
李俊华
马超
张磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo University
Original Assignee
Ningbo University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo University filed Critical Ningbo University
Priority to CN201420374984.5U priority Critical patent/CN204001810U/en
Application granted granted Critical
Publication of CN204001810U publication Critical patent/CN204001810U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire, comprise profile steel concrete column and girder steel, girder steel level runs through described profile steel concrete column inside, the web of girder steel longitudinally arranges, the intersection of profile steel concrete column and girder steel forms joint cores, feature is that the position symmetry that steel reinforced concrete column outer wall is positioned at joint cores is arranged with U-shaped steel, on four corner angle of profile steel concrete column and the position of close joint cores is fixedly installed respectively angle steel, band steel by horizontally set between two adjacent angle steel is fixedly connected with, advantage is effectively to improve rigidity and the ultimate bearing capacity of member simultaneously, further improve the anti-seismic performance of profile steel concrete column-steel beam joint after fire.

Description

A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire
Technical field
The utility model relates to a kind of Covered with Angles and encloses cover and reinforce section steel concrete column-steel girder node device after fire.
Background technology
In recent years, steel reinforced concrete-steel beam structure application is very extensive, and a lot of buildings have been used steel reinforced concrete column-steel beam member more or less.China is also the multiple country of fire, and the loss that fire produces also improves rapidly year by year.Therefore, the performance of structure and the problem of the reparation of the reinforcing after fire after fire have been proposed.Through experimental study analysis both domestic and external, the anti-seismic performance after section steel concrete column-steel girder node fire has loss in various degree.But, section steel concrete column-steel girder node is the key position of steel reinforced concrete frame structural seismic system power transmission, the safe and reliable of node is the prerequisite of the normal work of total, frame column-beam crosses and is connected in node, its stressed complexity, in pressing, curved, the composite stress state cut, be also the core point of structure power transmission.Therefore studying steel reinforced concrete column-steel beam node reinforcing technique is very important.
At present, the reinforcing restorative procedure of profile steel concrete column, mainly contains increasing section reinforcing method, CFRP Sheet Strengthening Method, prestressing etc.Result of the test shows, these restored projects have all improved the mechanical properties such as the bearing capacity, ductility of member to some extent, is the effective way of further improving profile steel concrete column anti-seismic performance after fire.Increasing section reinforcing method is by increasing the steel bar stress of former member, simultaneously at outside young concrete to increase member section, improve intensity, rigidity stability and the crack resistance of member, applied widely, reasonable stress, but because young concrete needs maintenance, cause the duration longer, the method has also increased dead load, has reduced the usage space of building when increasing cross section.CFRP Sheet Strengthening Method is by member wrap carbon fiber material, except effective ductility that improves member, also have corrosion-resistant, humidity, increase advantages such as building deadweight, easy construction hardly, but the method effect aspect raising element bearing capacity is limited.Prestressing is by member being applied to vertical and horizontal prestressing force, improves member ultimate bearing capacity, and reduces structure member crevices, improves behavior of members under loading, but the method is to the having relatively high expectations of material property and ground tackle, complicated construction technique.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of rigidity and ultimate bearing capacity that can simultaneously effectively improve member, further improves after fire the Covered with Angles of anti-seismic performance and encloses cover and reinforce section steel concrete column-steel girder node device after fire.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire, comprise profile steel concrete column and girder steel, described girder steel level runs through described profile steel concrete column inside, the web of described girder steel longitudinally arranges, the intersection of described profile steel concrete column and described girder steel forms joint cores, the position symmetry that described steel reinforced concrete column outer wall is positioned at described joint cores is arranged with U-shaped steel, on four corner angle of described profile steel concrete column and the position of close described joint cores is fixedly installed respectively angle steel, band steel by horizontally set between angle steel described in adjacent two is fixedly connected with.
The inner width of described U-shaped steel equals or is slightly larger than the width of described profile steel concrete column, the height of described U-shaped steel is equal to or slightly less than the height of the web of described girder steel, the web of the front end end of described U-shaped steel and described girder steel is welded to connect, and the end, upper end of described U-shaped steel and end, lower end are welded to connect with the edge of a wing of described girder steel respectively.
Described angle steel is fixed on four corner angle of described profile steel concrete column by epoxy adhesive.
The end, lower end of the described angle steel of the top, joint cores described in being positioned at and described U-shaped steel are welded to connect, and the end, upper end of the described angle steel of the below, joint cores described in being positioned at and described U-shaped steel are welded to connect.
Compared with prior art, the advantage of the utility model patent is: a kind of Covered with Angles of the utility model encloses cover and reinforces section steel concrete column-steel girder node device after fire, it is reinforced to repair and has adopted Covered with Angles reinforcing, main material is steel, steel have adopted angle steel and U-shaped steel, reinforcing for joint cores adopts two U-shaped steel to enclose cover reinforcing to section steel concrete column-steel girder node core space concrete, for joint core area edge upper and lower side post concrete, adopt angle steel to reinforce and use epoxy resin steel bonding to be adhesive in four jiaos of post, angle steel is carried out being welded to connect with band steel simultaneously, form stirrup, its advantage is as follows:
1, improve the Rigidity and strength of member.Section steel concrete column-steel girder node bracing means after this fire, take full advantage of the material property of angle steel and U-shaped steel, can be to the outside enough formula steel bushings of lattice that increase of profile steel concrete column, compare CFRP Sheet Strengthening Method, the bending rigidity and the shear stiffness that have increased member, effectively improved component load-bearing ability.
2, not affecting member normally uses.Section steel concrete column-steel girder node bracing means after this fire, increase hardly the cross section of member, compare the profile steel concrete column that increasing section is reinforced, by expanding the mode of original member section, carry out stiffener mechanical property, greatly reduced the normal impact of using of member.
3, easy construction, duration are short.Section steel concrete column-steel girder node bracing means after this fire, main material is common angle steel and U-shaped steel, by welding and barbola work, buying is convenient, implementation process does not have technological difficulties, compare the high and complicated construction technique of the material requirements of prestressing, construction convenience degree is self-evident.Need late maintaining to compare with increasing section reinforcing method, the utility model has been constructed and can have been produced anticipation consolidation effect simultaneously, and the duration is shorter.
Accompanying drawing explanation
Fig. 1 is joint cores of the present utility model structural representation;
Fig. 2 is the structural representation of the utility model section steel concrete column-steel girder node bracing means;
Fig. 3 is the A-A ' cross section view of Fig. 2;
Fig. 4 is the B-B ' cross section view of Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Specific embodiment
A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire, as Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, comprise profile steel concrete column 1 and girder steel 2, girder steel 2 levels run through profile steel concrete column 1 inside, the web 3 of girder steel 2 longitudinally arranges, the intersection of profile steel concrete column 1 and girder steel 2 forms joint cores 4, the position symmetry that profile steel concrete column 1 outer wall is positioned at joint cores 4 is arranged with U-shaped steel 5, on four corner angle of the profile steel concrete column 1 and position of close joint cores 4 is fixedly installed respectively angle steel 6, band steel 7 by horizontally set between two adjacent angle steel 6 is fixedly connected with.
In this specific embodiment, the inner width of U-shaped steel 5 equals or is slightly larger than the width of profile steel concrete column 1, the height of U-shaped steel 5 is equal to or slightly less than the height of the web 6 of girder steel 2, the front end end of U-shaped steel 5 and the web 3 of girder steel 2 are welded to connect, and the end, upper end of U-shaped steel 5 and end, lower end are welded to connect with the edge of a wing 8 of girder steel 2 respectively.Angle steel 6 is fixed on four corner angle of profile steel concrete column 1 by epoxy adhesive.The end, lower end and the U-shaped steel 5 that are positioned at the angle steel 6 of 4 tops, joint cores are welded to connect, and are positioned at the end, upper end of angle steel 6 and being welded to connect of U-shaped steel 5 of 4 belows, joint cores.
Its construction method is as follows:
(1) joint cores 4 concrete surfaces of profile steel concrete column 1-girder steel 2 are processed, polish off and be subject to the fiery posterior nodal point core space 4 loose concrete in surface, by concrete corner angle rounding, concrete surface is processed, requirement surfacing is clean, 2 symmetrical U-shaped steel 5 are enclosed within to profile steel concrete column 1 periphery of 4 positions, joint cores, U-shaped steel 5 front end ends are welded on the web 3 of girder steel 2, and finally in the profile steel concrete column 1 of joint cores 4 and the gap of U-shaped steel 5, injected water cement mortar carries out grouting treatment and carries out closely knit;
(2) profile steel concrete column 1 surfacing, polish off the profile steel concrete column 1 loose concrete in surface, by four corner angle roundings of profile steel concrete column 1, concrete surface is processed, keep surfacing clean, 1 four jiaos of profile steel concrete column, smear epoxy adhesive and paste angle steel 6, the band steel 7 of the angle steel 6 use horizontally sets at 1 four angles of profile steel concrete column is welded to connect formation steel hoop;
(3) angle steel 6 of the angle steel 6 of 4 upper ends, joint cores and 4 lower ends, joint cores utilizes butt weld to weld with U-shaped steel 5 respectively.
Above-described embodiment is to further illustrate of the present utility model, but protection domain of the present utility model is as the criterion with claims.

Claims (4)

1. a Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire, comprise profile steel concrete column and girder steel, described girder steel level runs through described profile steel concrete column inside, the web of described girder steel longitudinally arranges, the intersection of described profile steel concrete column and described girder steel forms joint cores, it is characterized in that: the position symmetry that described steel reinforced concrete column outer wall is positioned at described joint cores is arranged with U-shaped steel, on four corner angle of described profile steel concrete column and the position of close described joint cores is fixedly installed respectively angle steel, band steel by horizontally set between angle steel described in adjacent two is fixedly connected with.
2. a kind of Covered with Angles according to claim 1 encloses cover and reinforces section steel concrete column-steel girder node device after fire, it is characterized in that: the inner width of described U-shaped steel equals or be slightly larger than the width of described profile steel concrete column, the height of described U-shaped steel is equal to or slightly less than the height of the web of described girder steel, the web of the front end end of described U-shaped steel and described girder steel is welded to connect, and the end, upper end of described U-shaped steel and end, lower end are welded to connect with the edge of a wing of described girder steel respectively.
3. a kind of Covered with Angles according to claim 2 encloses cover and reinforces section steel concrete column-steel girder node device after fire, it is characterized in that: described angle steel is fixed on four corner angle of described profile steel concrete column by epoxy adhesive.
4. a kind of Covered with Angles according to claim 3 encloses cover and reinforces section steel concrete column-steel girder node device after fire, it is characterized in that: the end, lower end of the described angle steel of the top, joint cores described in being positioned at and described U-shaped steel are welded to connect, the end, upper end of the described angle steel of the below, joint cores described in being positioned at and described U-shaped steel are welded to connect.
CN201420374984.5U 2014-07-08 2014-07-08 A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire Expired - Fee Related CN204001810U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420374984.5U CN204001810U (en) 2014-07-08 2014-07-08 A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420374984.5U CN204001810U (en) 2014-07-08 2014-07-08 A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire

Publications (1)

Publication Number Publication Date
CN204001810U true CN204001810U (en) 2014-12-10

Family

ID=52041833

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420374984.5U Expired - Fee Related CN204001810U (en) 2014-07-08 2014-07-08 A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire

Country Status (1)

Country Link
CN (1) CN204001810U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108798055A (en) * 2018-05-31 2018-11-13 昆明理工大学 A kind of reinforcement means for the frame structure bean column node that ECC is combined with encased steel plate
CN110080411A (en) * 2019-06-06 2019-08-02 上海中测行工程检测咨询有限公司 A kind of method and apparatus of energy dissipation of frame structure key position

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108798055A (en) * 2018-05-31 2018-11-13 昆明理工大学 A kind of reinforcement means for the frame structure bean column node that ECC is combined with encased steel plate
CN110080411A (en) * 2019-06-06 2019-08-02 上海中测行工程检测咨询有限公司 A kind of method and apparatus of energy dissipation of frame structure key position

Similar Documents

Publication Publication Date Title
CN206205192U (en) A kind of precast floor slab building
CN100469983C (en) Method for reinforcing space nodes of beam column built from concrete
CN203347257U (en) Anti-seismic reinforcement device for steel reinforced concrete column after fire
CN102650168B (en) Connecting method and connection joint for concrete-filled steel square tubular columns and steel beams
CN206554274U (en) Novel fabricated timber buildings cross steel plate connecting node
CN103422576B (en) A kind of reinforcing of wooden construction Tenon node and energy-consumption shock-absorption device
CN103711330B (en) A kind of prestressing force assembling precast reinforced concrete frame reinforces the method for existing structure
CN103132708B (en) Beam-column joint reinforcing method and beam-column joint reinforcing device
CN103074959A (en) Steel plate and high-strength concrete combination connecting beam
CN102505760B (en) Prefabricated combined beam and column node member
CN103711329B (en) The method of outer subsides steel reinforced concrete framework method ruggedized construction
CN103397711A (en) Multi-tube lattice type buckling restraining support
CN105239726B (en) The prefabricated combined special-shaped power consumption post of steel reinforced concrete
CN204001810U (en) A kind of Covered with Angles encloses cover and reinforces section steel concrete column-steel girder node device after fire
CN102635177A (en) Un-bonded concealed bracing type shear wall for reinforced concrete frame and construction method thereof
CN105926774A (en) End plate connection integral type combination frame beam and combination method thereof
CN102031846A (en) End-opened inclined rib rectangular steel tube confined concrete column
CN203383522U (en) Reinforcing beam column joint
CN103306495B (en) Wooden construction truncated cylinder reinforced construction method
CN202073184U (en) L-shaped angle steel reinforced wooden tenon-and-mortise joint node
CN103615069A (en) Trussed steel rib concrete coupling beam
CN103726668B (en) The method of outer subsides Covered with Angles assembling PC framework method ruggedized construction
CN204001809U (en) A kind of carbon fiber encloses cover and reinforces Steel Reinforced Concrete Beam-column Joints device after fire
CN202359663U (en) Pre-fabricated composite joint member
CN103669896B (en) The method of outer adhesive tape ductility pile damper reinforced concrete frame method ruggedized construction

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20190708

CF01 Termination of patent right due to non-payment of annual fee