CN207700746U - The upper buttress of existing building base isolation reinforcement constructs - Google Patents
The upper buttress of existing building base isolation reinforcement constructs Download PDFInfo
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- CN207700746U CN207700746U CN201721365900.1U CN201721365900U CN207700746U CN 207700746 U CN207700746 U CN 207700746U CN 201721365900 U CN201721365900 U CN 201721365900U CN 207700746 U CN207700746 U CN 207700746U
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Abstract
This application discloses a kind of upper buttress of existing building base isolation reinforcement constructions；Upper buttress construction includes the supporting frame column of original structure, the thick pillar armored concrete part newly poured and connecting structure between the two；Connecting structure includes：Several anchor ribs, horizontal closed stirrup and conjunction old and new concret portion；After each anchor rib can be welded and fixed with the column main reinforcement of former supporting frame column, lantern muscle is formed；Horizontal closed stirrup is capable of the welding position of banding each anchor rib and column main reinforcement；Newly, old concrete engaging portion, the external wrapping concrete layer of the supporting frame column by cutting original structure expose above-mentioned column main reinforcement welding site and are formed；Thick pillar armored concrete part is poured in the supporting frame column periphery of original structure.It can thus be appreciated that：The upper buttress construction of the application is a kind of new, old concrete composite structure, takes full advantage of original structure column, specifies supporting frame column main reinforcement anchor measure；Construction is succinct, quick construction.
Description
Technical field
The application belongs to building structure base isolation reinforcement renovation technique field, specifically, being related to a kind of existing building shock insulation
The upper buttress construction reinforced is not only suitable in improvement projects such as one layer of translation, the increase basements of existing building, and is particularly suitable for
Aseismatic reinforcement engineering is carried out using seismic isolation technology in earthquake territory existing building.
Background technology
Existing building carries out base isolation reinforcement transformation, it usually needs Seismic Isolation of Isolation Layer is arranged in construction bottom.The prior art it is specific
Way is：First with the supporting frame column within the scope of first floor ceiling height, shock isolating pedestal lower part needs to be arranged at excision basis top
Lower buttress or lower supporting rod install shock isolating pedestal, and upper buttress or upper supporting column need to be arranged in shock isolating pedestal top, and in upper buttress plane
Armored concrete rigidity superstructure is set.It can thus be appreciated that：Superstructure (structure division more than upper buttress) and substructure (lower
Pier structure division below) between be connected completely by shock isolating pedestal.The earthwork at shock isolating pedestal present position needs all to excavate,
Ensure earthquake occur when superstructure and substructure between can Free water heave it is dynamic.
In the construction of upper and lower buttress, lower buttress construction is relatively easy, and upper part is shock isolating pedestal, based on lower part or
Substructure.Structure construction way is in basis or substructure bar planting, assembling reinforcement, casting concrete, while embedded shock insulation
The lower embedded board of bearing.
Upper buttress is the key position of isolation structure stress and construction, and first from structurally, the lower part of upper buttress is shock insulation
Bearing, top are the load-carrying members columns of superstructure.Require the connection measure of upper buttress and shock isolating pedestal that must be easy for simultaneously
Dismounting and replacement.In horizontal plane, the effect of upper buttress is the beam and plate of connection and bearing armored concrete rigidity superstructure.In structure
In stress, beam, column, shock isolating pedestal form complicated force balance relationship at this node.In construction, column is underpined
When, it needs to carry out the conversion of upper load in upper buttress position.
The construction of upper buttress, the prior art are mainly two methods：It is new do with steel plate Hold Hoop method, wherein：
Newly doing the specific practice of buttress is：Setting underpins holder, first by top pillar stud, cuts off buttress range
Existing frame column retains column main reinforcement, carries out reinforcing bar binding, concreting according to the way of newly-built shock insulation engineering again, pre-buried
Connecting plate, sleeve and the anchor bar of shock isolating pedestal.Frame column main reinforcement is anchored within new upper buttress.
The specific practice of buttress is on steel plate Hold Hoop method：It is anchored into column using bar planting or Screw arbor with nut at both-ends, using four sides steel plate,
Enclose the supporting frame column for embracing institute's structure.
All there is larger difficulty in above two way, first method, using manual operations, is in cut-out column in construction
The anchor bar of reserved column, need to slowly cut concrete, speed of application is slow, bigger to the damage of column using small hammer.
Second of practice, site welding quantities is big, and column main reinforcement does not take direct anchor measure.Two kinds of practices are required for huge
Profile steel bracket structure.Steel consumption is big, and making is taken a lot of work, and the jacking time is long, big to the security risk of structure, and project cost is high.
The construction of upper buttress is the most important position of base isolation reinforcement design and construction, and underpinning technique is base isolation reinforcement construction
It is crucial.It is limited by the restriction of whole underpinning technique, upper buttress construction way never has larger breakthrough, can be with seismic isolation technology
Remarkable damping theory and effect are to adaptation.It would therefore be highly desirable to develop buttress construction and corresponding support on a set of new base isolation reinforcement
Technology is changed, to adapt to and promote the popularization and application every cushion technique.It really realizes and combats a natural disaster to take precautions against natural calamities, promote the well-being of mankind.
Utility model content
This application provides a kind of upper buttress of existing building base isolation reinforcement constructions.Buttress is constructed from existing building on this
Objective reality reality is set out, and the load-carrying properties of original structure column are rationally utilized, and creates a kind of knot new, old concrete is combined
Structure can improve shock design level, accelerate construction progress, reduce project cost.
For the technical purpose for realizing above-mentioned, the application takes following technical scheme：
A kind of upper buttress construction of existing building base isolation reinforcement, including：The supporting frame column of original structure, the thick pillar newly poured
Armored concrete part and connecting structure between the two；Wherein：
Connecting structure includes：Several anchor ribs, horizontal closed stirrup and conjunction old and new concret portion；
Each anchor rib it is corresponding with a wherein column main reinforcement for supporting frame column place, and each anchor rib with accordingly
Column main reinforcement be welded and fixed after, lantern muscle can be formed；
The horizontal closed stirrup, flatly anchor ear, being capable of each anchor rib of banding and column master in supporting frame column periphery
The welding position of muscle；
The conjunction old and new concret portion refers to concrete cover groove, by the supporting frame for cutting original structure
The external wrapping concrete layer of column exposes above-mentioned column main reinforcement welding site and is formed；
Thick pillar armored concrete part, in the coagulation that can cover lantern muscle that the supporting frame column periphery of original structure pours
Soil layer.
As being further improved for the application, each anchor rib all has two welding ends；One of anchor rib
Welding ends is welded and fixed with the vertical site a of column main reinforcement at placement location, another welding ends and placement location of anchor rib
The vertical site b of column main reinforcement at place is welded and fixed, and vertical site a, vertical site b are on the vertical same straight line of column main reinforcement；Institute
State horizontal closed stirrup, including two groups, one of which can each anchor rib of banding the welding position of top is in column main reinforcement, separately
Outer one group then being capable of the welding position that is below of each anchor rib of banding and column main reinforcement.
As being further improved for the application, the anchor rib is arranged in " " shape；Two welding ends of " " shape anchor rib are somebody's turn to do,
By being bent at the both ends of C-shaped reinforcing bar respectively inwards to be correspondingly formed.
As being further improved for the application, horizontal closed stirrup is arranged in the bending adjacent with " " shape anchor rib welding ends
At position.
As being further improved for the application, anchor rib area of section is not less than the 1/2 of column main reinforcement area of section, and diameter
Not less than 10mm.
As being further improved for the application, every group of horizontal closed stirrup includes two horizontal closed stirrups, every water
Flat closed stirrup is by two U-shaped opening stirrup welding formings.
As being further improved for the application, the anchor rib includes column side anchor rib and column corner anchor rib；Column side
Anchor rib vertical load-bearing frame column column side arrangement, and there are two types of the arrangement of column corner anchor rib tools, one of which is along load-bearing
Frame column diagonal is arranged, at this point, column main reinforcement is consistent with anchor rib quantity, and anchor rib corresponds cloth with column main reinforcement
It sets；The column corner anchor rib of another arrangement includes two, is respectively arranged perpendicular to the adjacent both sides of supporting frame column.
As being further improved for the application, in the outside of supporting frame column, the upper buttress main reinforcement of setting, upper buttress main reinforcement exist
X, tri- direction settings of Y, Z, form three-dimensional steel reinforcement cage.
As the improved technical solution of the application, concrete cover groove a and concrete cover groove b height are equal
Not less than the fusion length of anchor rib.
According to above-mentioned technical solution, compared with the existing technology, the application has advantageous effect below：
By the connection measure of brand-new design, buttress in solid new, old concrete composite structure is realized.Have
Clearly structure stress model and convenience for construction：Not only the various complicated power transmission needs of structure, but also reliably anchor stud bottom steel had been met
Muscle, beam, the plate of stable support first floor superstructure, and adapt to underpin fulcrum requirement when base isolation reinforcement construction completely, while working as and needing again
When secondary replacement shock isolating pedestal, any processing can be no longer carried out, underpinning construction is carried out directly as fulcrum is underpined.Its advantage is specifically wrapped
Include the following aspects：
(1), to original supporting frame column, fanout free region is not damaged, only removes two cover concretes, and it is recessed to form shearing resistance
(protective layer groove a, protective layer groove b), newly, between old concrete vertical load can be transmitted effectively slot, support floor beam-and-slab
Load undertakes and shears conversion when underpining.
Newly-laid concrete forms " returning " font and encloses structure, and bearing embedded board, embedded board and newly-laid concrete is arranged in bottom
Planar dimension size and shape are identical.Internal three-dimensional closing ring, can guarantee the stabilization of novel concrete itself.Bottom plate pre-embedded steel slab increases
The constraint of strong peripheral concrete when underpining, can prevent crack in tension.
(2), it usesShape anchor rib is divided at upper and lower two to be welded with supporting frame column, and column main reinforcement is in integrally " d " shape, with
Concrete is tightly combined, and anchor measure is reliable.
(3), horizontal closed stirrup holds main reinforcement, avoids pulling, simultaneously together with previous level stirrup in supporting frame column
Reinforce the connection between former supporting frame column and newly-laid concrete.
(4), column surface concrete protective layer is rejected in anchor rib and column main reinforcement welding position, exposes main reinforcement, the coagulation of rejecting
Soil forms groove along column week, and faying face shear resistance is stronger.
(5) " lantern muscle " shape is integrally formed in anchor rib, is both the anchor measure of column main reinforcement.It is also used as column cross section
Widened principal rod, the Vierendeel girder being connected with column can pass through along buttress on newly-laid concrete outside column, therefore, " lantern muscle " at
To reinforce the measure of beam-to-column joint.During underpining, anchor rib be inverted bracket main stress muscle, and be new-old concrete it
Between shear connections muscle, realize and achieve many things at one stroke.
The upper buttress of the utility model constructs, in design,Shape anchor rib make the connection of new-old concrete more securely,
Reliably.The connection of beam and column can not need a large amount of bar planting, avoid the destruction to original column.In construction, with buttress itself
As the upper joist structure of underpinning structure, the making and construction of underpinning structure huge in existing underpin, material saving, province are abandoned completely
It is work, time saving, economical.
The utility model has revolutionary novelty, has good social benefit and technical economic benefit.It can be significantly
Promote application of the base isolation reinforcement technology in reinforcing engineering is transformed,
Description of the drawings
Fig. 1 is the upper buttress axis side schematic diagram of herein described base isolation reinforcement structure；
Fig. 2 is the upper buttress horizontal profile schematic diagram of herein described base isolation reinforcement structure；
Fig. 3 is the upper buttress vertical cross section schematic diagram of herein described base isolation reinforcement structure；
In Fig. 1 to 3：1- anchor ribs；The horizontal closed stirrups of 2-；3- protective layer grooves；4- column main reinforcements；5- outer concretes
Layer；6- supporting frame columns.
Specific implementation mode
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the application and its application or makes
Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall in the protection scope of this application.Unless specifically stated otherwise, otherwise in these realities
Apply the positioned opposite of component and step, expression formula described in example and the unlimited scope of the present application processed of numerical value.Meanwhile it should be bright
In vain, for ease of description, the size of attached various pieces shown in the drawings is not to be drawn according to actual proportionate relationship.It is right
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but in the appropriate case, institute
Stating technology, method and apparatus should be considered as authorizing part of specification.In shown here and discussion all examples, appoint
What occurrence should be construed as merely illustrative, not as limitation.Therefore, the other examples of exemplary embodiment can
With with different values.
For ease of description, herein can with use space relative terms, as " ... on ", " in ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or be in other orientation).
As shown in Figures 1 to 3, the upper buttress construction of herein described existing building base isolation reinforcement, against shock isolating pedestal top
Supporting frame column it is built-up, including：The supporting frame column of original structure, the thick pillar armored concrete part and two newly poured
Connecting structure between person；Wherein：
Connecting structure includes：Several anchor ribs 1, horizontal closed stirrup 2 and conjunction old and new concret portion；
Each anchor rib it is corresponding with a wherein column main reinforcement for supporting frame column place, and each anchor rib with accordingly
Column main reinforcement be welded and fixed after, lantern muscle can be formed；Specifically, herein described anchor rib includes several, circumferential equal
Cloth is peripheral in supporting frame column, is inShape is arranged, shouldShape anchor rib has welding ends a, b, by by C-shaped reinforcing bar
Both ends are bent respectively inwards to be correspondingly formed；Each anchor rib is each perpendicular to supporting frame column arrangement, and each anchor rib
Placement location it is corresponding with a wherein column main reinforcement placement location for supporting frame column, while two welding ends a of anchor rib,
B and the column main reinforcement of corresponding position are in that vertical two different locis A, B are corresponding respectively to be welded and fixed, in fact, constructing
In the process, the column main reinforcement of substantially each supporting frame column configures an anchor rib.
The horizontal closed stirrup, flatly anchor ear, being capable of each anchor rib of banding and column master in supporting frame column periphery
The welding position of muscle；Horizontal closed stirrup described herein, including two groups, it is respectively arranged in welding ends a, b with anchor rib
At adjacent crooked place, the welding position of anchor rib and column main reinforcement can be waled, with original horizontal hoop in supporting frame column
Muscle together, holds column main reinforcement, avoids pulling, while reinforcing the connection between supporting frame column and outer concrete layer 5.
The conjunction old and new concret portion is concrete cover groove, by the supporting frame column for cutting original structure
External wrapping concrete layer, expose above-mentioned column main reinforcement welding site and formed；
Thick pillar armored concrete part, in the coagulation that can cover lantern muscle that the supporting frame column periphery of original structure pours
Soil layer usually (is made of) periphery in lantern muscle according to normal construction requirement anchor rib and pours, and shock insulation can be arranged in bottom
The embedded board of bearing.Embedded board can also serve as bottom strengthening measure when underpining, and ensure that concrete will not cracking.
The upper buttress construction method of herein described existing building base isolation reinforcement, includes the following steps：
(1) prepare reinforcing bar：Prepare anchor rib, horizontal closed stirrup and upper buttress three-dimensional stirrup shape main reinforcement respectively, wherein：Anchor
Gu in muscle, column side anchor rib and column corner anchor rib；Anchor rib includes column side anchor rib and column corner anchor rib；Column side anchor is solid
Muscle vertical load-bearing frame column column side；Column corner anchor rib can be arranged along buttress plane diagonal, can also be arranged two, respectively
From vertical column side.
Anchor rib area of section should be not less than the 1/2 of the column main reinforcement area of section of supporting frame column, and diameter is not less than 10mm.
In horizontal closed stirrup, two are one group, and one is arranged at the crooked place of one welding ends of anchor rib
The horizontal closed stirrup of group arranges remaining one group of level closing at the crooked place of another welding ends of anchor rib
Stirrup；
Arrange that the upper buttress main reinforcement in tri- directions X, Y, Z, main reinforcement use stirrup shape within the scope of post lamp cage muscle, original is mixed
It is in steel reinforcement cage that solidifying earth pillar, which encloses,；
(2) protective layer groove is dug out：With supporting frame column bottom at a distance of h1、h2Two sites A, B at, reject respectively
The outer concrete protective layer of supporting frame column exposes the column main reinforcement of supporting frame column, accordingly forms protective layer groove a, protects
Sheath groove b；Protective layer groove height is not less than the fusion length of welded reinforcement, welding by both sides 5d (d is anchor rib diameter).Groove
Surface should rinse well, it is ensured that without concrete clast, and water dumping mud.
(3) anchor rib is welded：Anchor rib is arranged perpendicular to supporting frame column, then, using welding manner, by anchor rib
One of the column main reinforcement that exposes at welding ends and protective layer groove a be welded and fixed, by another welding ends of anchor rib
It is welded and fixed with the column main reinforcement exposed at protective layer groove b；Construct one by one, until all anchor ribs with corresponding column main reinforcement
Welding；So that after each anchor rib is welded and fixed with column main reinforcement, lantern muscle is formed；
In addition, column corner anchor rib, can arrange along upper buttress diagonal, two column corners can also be used to anchor
Muscle arranges that two anchor ribs merge the corner master concentrated in together with supporting frame column with column as anchor rib when vertical column
Muscle welds.
(4) horizontal closed stirrup is arranged：
Horizontal closed stirrup is arranged in anchor rib bending place.Stirrup has to welded reinforcement tightly binding round jail, cannot it is slack and undisciplined,
It has the gap；Specifically：One group of horizontal closed stirrup is arranged at the crooked place of one welding ends of anchor rib, in close proximity to
At the crooked place for another welding ends of anchor rib, remaining one group of horizontal closed stirrup is arranged；Horizontal closed stirrup diameter
Same column tie-bar, totally 2 groups 4, every group 2, and muscle, U-shaped opening stirrup welding forming can be used, (d is that stirrup is straight to single welding 10d
Diameter).
(5) in setting buttress main reinforcement
Arrange that the upper buttress main reinforcement in tri- directions X, Y, Z, main reinforcement use stirrup shape within the scope of post lamp cage muscle, original is mixed
It is in steel reinforcement cage that solidifying earth pillar, which encloses,；
(6) outer concrete layer is poured：
It is required according to normal construction, the casting concrete within the scope of steel reinforcement cage, the embedded board of shock isolating pedestal is arranged in bottom.
Claims (9)
1. a kind of upper buttress of existing building base isolation reinforcement constructs, which is characterized in that including：It is the supporting frame column of original structure, new
The thick pillar armored concrete part poured and connecting structure between the two；Wherein：
Connecting structure includes：Several anchor ribs, horizontal closed stirrup and conjunction old and new concret portion；
Each anchor rib it is corresponding with a wherein column main reinforcement for supporting frame column place, and each anchor rib with corresponding column
After main reinforcement is welded and fixed, lantern muscle can be formed；
The horizontal closed stirrup, flatly anchor ear, being capable of each anchor rib of banding and column main reinforcement in supporting frame column periphery
Welding position；
The conjunction old and new concret portion refers to concrete cover groove, by the supporting frame column for cutting original structure
External wrapping concrete layer exposes above-mentioned column main reinforcement welding site and is formed；
Thick pillar armored concrete part, in the concrete that can cover lantern muscle that the supporting frame column periphery of original structure pours
Layer.
2. being constructed according to the upper buttress of existing building base isolation reinforcement described in claim 1, which is characterized in that each anchor rib
All have two welding ends；One of anchor rib welding ends and the vertical site a welding of column main reinforcement at placement location are solid
Fixed, another welding ends of anchor rib is welded and fixed with the vertical site b of the column main reinforcement at placement location, vertical site a,
Vertical site b is on the vertical same straight line of column main reinforcement；
The horizontal closed stirrup, including two groups, one of which can each anchor rib of banding the welding of top is in column main reinforcement
Position, another set then being capable of the welding positions that are below of each anchor rib of banding and column main reinforcement.
3. being constructed according to the upper buttress of existing building base isolation reinforcement described in claim 1, which is characterized in that the anchor rib is in
“" shape setting；Should "" shape anchor rib two welding ends, by being bent at the both ends of C shape reinforcing bars respectively inwards with correspondence
It is formed.
4. being constructed according to the upper buttress of existing building base isolation reinforcement described in claim 3, which is characterized in that horizontal closed stirrup
Be arranged in "" at the adjacent crooked place of shape anchor rib welding ends.
5. being constructed according to the upper buttress of existing building base isolation reinforcement described in claim 1, which is characterized in that anchor rib section face
1/2 of product not less than column main reinforcement area of section, and diameter is not less than 10mm.
6. being constructed according to the upper buttress of existing building base isolation reinforcement described in claim 1, which is characterized in that every group of level closing
Stirrup includes two horizontal closed stirrups, and every horizontal closed stirrup is by two U shape U-stirrups welding formings.
7. being constructed according to the upper buttress of existing building base isolation reinforcement described in claim 1, which is characterized in that the anchor rib packet
Include column side anchor rib and column corner anchor rib；Column is arranged in anchor rib vertical load-bearing frame column column, and column corner anchor rib
Arrangement tool there are two types of：
One of which is arranged along supporting frame column diagonal, at this point, column main reinforcement is consistent with anchor rib quantity, and anchor rib and
Column main reinforcement corresponds arrangement；
The column corner anchor rib of another arrangement includes two, is respectively arranged perpendicular to the adjacent both sides of supporting frame column.
8. being constructed according to the upper buttress of existing building base isolation reinforcement described in claim 1, which is characterized in that in supporting frame column
The upper buttress main reinforcement of outside setting, upper buttress main reinforcement is arranged in tri- directions X, Y, Z, forms three-dimensional steel reinforcement cage.
9. being constructed according to the upper buttress of existing building base isolation reinforcement described in claim 2, which is characterized in that concrete cover
There are two groove tools, respectively concrete cover groove a and concrete cover groove b；Concrete cover groove
A corresponds to the vertical site a settings of column main reinforcement, and concrete cover groove b corresponds to the vertical site b settings of column main reinforcement, coagulation
Protective soil layer groove a and concrete cover groove b height are not less than the fusion length of anchor rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721365900.1U CN207700746U (en) | 2017-10-23 | 2017-10-23 | The upper buttress of existing building base isolation reinforcement constructs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721365900.1U CN207700746U (en) | 2017-10-23 | 2017-10-23 | The upper buttress of existing building base isolation reinforcement constructs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207700746U true CN207700746U (en) | 2018-08-07 |
Family
ID=63021401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721365900.1U Withdrawn - After Issue CN207700746U (en) | 2017-10-23 | 2017-10-23 | The upper buttress of existing building base isolation reinforcement constructs |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806252A (en) * | 2017-10-23 | 2018-03-16 | 南京百西思建筑科技有限公司 | The upper buttress construction and its construction method of existing building base isolation reinforcement |
| CN110056204A (en) * | 2019-04-19 | 2019-07-26 | 同济大学建筑设计研究院(集团)有限公司 | A kind of out no-conhesion prestressing underpins node |
| CN114856234A (en) * | 2022-04-22 | 2022-08-05 | 北京首钢建设集团有限公司 | Reinforcing structure of existing structural beam and construction method thereof |
-
2017
- 2017-10-23 CN CN201721365900.1U patent/CN207700746U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806252A (en) * | 2017-10-23 | 2018-03-16 | 南京百西思建筑科技有限公司 | The upper buttress construction and its construction method of existing building base isolation reinforcement |
| CN110056204A (en) * | 2019-04-19 | 2019-07-26 | 同济大学建筑设计研究院(集团)有限公司 | A kind of out no-conhesion prestressing underpins node |
| CN110056204B (en) * | 2019-04-19 | 2024-03-19 | 同济大学建筑设计研究院(集团)有限公司 | External unbonded prestress underpinning node |
| CN114856234A (en) * | 2022-04-22 | 2022-08-05 | 北京首钢建设集团有限公司 | Reinforcing structure of existing structural beam and construction method thereof |
| CN114856234B (en) * | 2022-04-22 | 2024-01-19 | 北京首钢建设集团有限公司 | Reinforcing structure of existing structural beam and construction method thereof |
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