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 PDFInfo
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- 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
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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
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.
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 |
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| 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 |
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| CN204001810U true CN204001810U (en) | 2014-12-10 |
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Cited By (3)
| 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 |
| CN110206185A (en) * | 2019-06-21 | 2019-09-06 | 大连理工大学 | A kind of grid structure plate bearing for taking reinforcement measure |
-
2014
- 2014-07-08 CN CN201420374984.5U patent/CN204001810U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN110206185A (en) * | 2019-06-21 | 2019-09-06 | 大连理工大学 | A kind of grid structure plate bearing for taking reinforcement measure |
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| 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 |
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| CF01 | Termination of patent right due to non-payment of annual fee |