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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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 183
- 239000010959 steel Substances 0.000 title claims abstract description 183
- 239000004567 concrete Substances 0.000 title claims abstract description 66
- 238000012946 outsourcing Methods 0.000 claims abstract 5
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 description 14
- 230000003014 reinforcing effect Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000011150 reinforced concrete Substances 0.000 description 4
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 3
- 229920006332 epoxy adhesive Polymers 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Rod-Shaped Construction Members (AREA)
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Abstract
本实用新型公开了一种外包钢围套加固火灾后型钢混凝土柱-钢梁节点装置，包括型钢混凝土柱和钢梁，钢梁水平贯穿所述的型钢混凝土柱内部，钢梁的腹板纵向设置，型钢混凝土柱和钢梁的交汇处形成节点核心区，特点是型钢混凝土柱外壁位于节点核心区的位置对称套设有U型钢，型钢混凝土柱的四个棱角上且靠近节点核心区的位置分别固定设置有角钢，相邻的两个角钢之间通过横向设置的扁钢固定连接，优点是可同时有效地提高构件的刚度和极限承载力，进一步改善火灾后型钢混凝土柱—钢梁节点的抗震性能。
The utility model discloses a steel-steel concrete column-steel beam node device after fire reinforced by an outsourcing steel enclosure, which comprises a steel-steel concrete column and a steel beam. The joint core area is formed at the intersection of the steel concrete column and the steel beam. The feature is that the outer wall of the steel concrete column is located in the core area of the node. The U-shaped steel is symmetrically placed on the four corners of the steel concrete column and close to the core area of the node. Angle steels are fixed respectively, and two adjacent angle steels are fixedly connected by horizontally arranged flat steels. The advantage is that the stiffness and ultimate bearing capacity of the components can be effectively improved at the same time, and the joint strength of steel concrete columns and steel beams after fire can be further improved. Anti-seismic performance.
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)
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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| Publication Number | Publication Date |
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| CN204001810U true CN204001810U (en) | 2014-12-10 |
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| 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 |
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Cited By (4)
| 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 |
| CN119102392A (en) * | 2024-10-25 | 2024-12-10 | 扬州大学 | A composite repair and reinforcement technology for non-uniformly exposed steel tube concrete columns after fire |
-
2014
- 2014-07-08 CN CN201420374984.5U patent/CN204001810U/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN119102392A (en) * | 2024-10-25 | 2024-12-10 | 扬州大学 | A composite repair and reinforcement technology for non-uniformly exposed steel tube concrete columns after fire |
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| Date | Code | Title | Description |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190708 |