CN108951643A - The big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span - Google Patents
The big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span Download PDFInfo
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- CN108951643A CN108951643A CN201811035420.8A CN201811035420A CN108951643A CN 108951643 A CN108951643 A CN 108951643A CN 201811035420 A CN201811035420 A CN 201811035420A CN 108951643 A CN108951643 A CN 108951643A
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- fashioned iron
- support replacement
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- large span
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
Abstract
The invention discloses a kind of big region support replacement construction methods of Super High deep basal pit basement Core Walls Structure large span, comprising: in fashioned iron column is successively arranged on raft foundation；In next layer of synchronous construction fashioned iron column and full hall scaffold；The bar construction of the peripheral structure beam of layer where construction on full hall scaffold persists core tube region；The fashioned iron support replacement beam of core tube region is persisted in construction on fashioned iron column；Carry out the concrete pouring construction of peripheral structure beam；In the upper one layer of synchronous construction fashioned iron column and steel pipe scaffold that persist core tube region；In construct on steel pipe scaffold upper one layer peripheral structure beam bar construction；In upper one layer of the fashioned iron support replacement beam of constructing on fashioned iron column；Carry out the concrete pouring construction of one layer of peripheral structure beam.The present invention, using the form of fashioned iron column adding type steel support replacement beam, effectively transmits lateral force and support replacement, has largely saved material and duration under conditions of the big region of Core Walls Structure large span needs support replacement.
Description
Technical field
The present invention relates to Core Walls Structure the realm of building construction more particularly to a kind of Super High deep basal pit basement Core Walls Structure greatly across
Spend big region support replacement construction method.
Background technique
When Core Walls Structure needs to carry out Functional Design change according to related request, Core Walls Structure and epitaxial region need stage construction
When, basement one floor (B1) and ground first floor plate (L1) corresponding core cylinder regional structure postpone construction, integrally to the later period
After the completion of flowering structure, then separately implement.The operating condition, which causes to return in underground structure, builds period B1 plate and L1 plate there are huge cavity,
It requires to carry out support replacement in Core Walls Structure large span large area region.
Therefore with regard to needing to take corresponding technology management step, in the construction for not influencing outline border and meet related operating conditions
Under, meet the big region support replacement requirement of Core Walls Structure large span, guarantees foundation pit branch before guaranteeing basement structure construction stage, backfilling of earthwork
Protection structure is in safe and stable state.
Summary of the invention
In view of existing in the prior art or potential some problems, the present invention provides a kind of Super High deep basal pit basements
The big region support replacement construction method of Core Walls Structure large span,
The present invention realize above-mentioned purpose the technical solution adopted is that:
A kind of big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span comprising step:
In fashioned iron column is successively arranged on raft foundation, until persisting next layer of structural slab of core tube region；
In the next layer of synchronous construction fashioned iron column and full hall scaffold, the fashioned iron column consistency from top to bottom of each layer；
The bar construction of the peripheral structure beam of layer where core tube region is persisted described in the construction on the full hall scaffold；
The fashioned iron support replacement beam of core tube region is persisted described in the construction on the fashioned iron column, the fashioned iron support replacement beam is fixed
In the bar construction of the fashioned iron column and the peripheral structure beam；
Carry out the concrete pouring construction of the peripheral structure beam；
In the upper one layer of synchronous construction fashioned iron column and steel pipe scaffold for persisting core tube region；
In the bar construction for upper one layer of the peripheral structure beam of constructing on the steel pipe scaffold；
In described upper one layer of the fashioned iron support replacement beam of constructing on the fashioned iron column, the fashioned iron support replacement beam is fixed on the type
The bar construction of steel column and upper one layer of the peripheral structure beam；And
Carry out the concrete pouring construction of described upper one layer of the peripheral structure beam.
Preferably, the top of the fashioned iron column is equipped with head plate, adopted between the head plate and the structural slab of respective layer
It is tamped with concrete.
Preferably, the fashioned iron support replacement beam includes at least the first direction support replacement beam arranged along different directions and second direction
Support replacement beam, the first direction support replacement beam and the second direction support replacement beam are located in same level, disconnect it in junction
One of and connection is welded with using splice plate.
Preferably, the fashioned iron column, in the protruding bracket of intersection with the fashioned iron support replacement beam, the fashioned iron changes
Support beam is fixed on the corresponding bracket.
Preferably, the pre-buried junction steel plate when constructing the peripheral structure beam；
Also, when constructing the fashioned iron support replacement beam, the junction steel plate is fixed in the end of the fashioned iron support replacement beam.
Preferably, the pre-buried connection bracket when constructing the peripheral structure beam；
Also, diagonal brace is set in the side back to the fashioned iron support replacement beam of the peripheral structure beam, the diagonal brace is fixed
In the connection bracket.
Preferably, presetting hard rubber in the bar construction described in pouring construction when the concrete of peripheral structure beam
Pipe, the rigid rubber pipe surface fluting, vibrating spear is inserted in the fluting of surface, the rigid rubber pipe is in the bar construction
Inside forms tumbling barrel, and concrete conveys downwards from the tumbling barrel, and the tumbling barrel and the vibrating spear with concrete floating by
Gradually above mention.
Preferably, described in pouring construction when the concrete of peripheral structure beam, in peripheral structure beam and the fashioned iron support replacement
Air channel is opened up in structure top surface of the beam template at the connecting node of beam.
Preferably, liner steel wire in the air channel.
Preferably, the core tube region that persists is basement one.
The present invention due to the adoption of the above technical scheme, make it have it is following the utility model has the advantages that
1, under conditions of the big region of Core Walls Structure large span needs support replacement, using the form of fashioned iron column adding type steel support replacement beam,
Effectively transmitting lateral force and support replacement, add lattice column form compared to traditional concrete support, have largely saved material
Material and duration.
It 2, is to meet top Core Walls Structure function change request, under the conditions of basement deep basal pit, using fashioned iron column adding type steel
The form of support replacement beam, can rationalization's cross construction with exterior domain.
3, this method is easy for construction using fashioned iron, and installation speed is fast, economic and environment-friendly, simultaneous type steel column and fashioned iron support replacement beam
Between connect or weld using high-strength bolt, be easily installed disassembly, be convenient for organizing construction immediately when returning to work.
4, it present method solves fashioned iron support replacement beam and concrete structure junction structural beams concreting problem, ensure that
Horizontal support replacement stress reliability has promotional value.
5, this method energy conservation and environmental protection: conventional steel bar concrete can not be recycled as material used in load transfering strip, no
Meet green construction requirement, and can be recycled after use using fashioned iron support replacement beam as load transfering strip.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the main construction of the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span of the present invention
Process flow chart.
Fig. 2 is the construction flow chart for the embodiment that the present invention is applied in the 4 layers of basement in underground.
Fig. 3 is the floor plan of the fashioned iron column in the embodiment of the present invention.
Fig. 4 is the schematic diagram of the fashioned iron column in the Core Walls Structure large span support replacement region in the embodiment of the present invention.
Fig. 5 is the attachment structure schematic diagram of the fashioned iron column top head plate in the embodiment of the present invention.
Fig. 6 is the attachment structure schematic diagram of the fashioned iron column bottom back cover plate in the embodiment of the present invention.
Fig. 7~9 are the front and side when the H profile steel in the embodiment of the present invention is lengthened using web and edge of a wing connecting plate
Face schematic diagram, wherein Fig. 7 is the front schematic view of web connecting plate, and Fig. 8 is the side schematic view of web connecting plate, and Fig. 9 is the wing
The front schematic view of edge connecting plate.
Figure 10 and Figure 11 is the front and side of the node connecting structure of the H profile steel support replacement beam truncated position in the embodiment of the present invention
Face schematic diagram, wherein Figure 10 is front schematic view, and Figure 11 is side schematic view.
Figure 12 and Figure 13 is the bracket connection structure of the fashioned iron support replacement beam and fashioned iron column intersection in the embodiment of the present invention
Vertical view and side schematic view, wherein Figure 12 is schematic top plan view, and Figure 13 is lateral plan.
Figure 14 and Figure 15 is that the connecting joint structure of the fashioned iron support replacement beam and peripheral structure beam in the embodiment of the present invention is illustrated
Figure, wherein Figure 14 is overall schematic, and Figure 15 is thin portion enlarged diagram.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
The present invention is described in detail in the following with reference to the drawings and specific embodiments.
The present invention is intended to provide a kind of big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span,
Under conditions of the big region of Core Walls Structure large span needs support replacement, using the form of fashioned iron column adding type steel support replacement beam, effectively transmitting side
To stress and support replacement, adds lattice column form compared to traditional concrete support, largely saved material and duration.
As shown in fig.1, being the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span of the present invention
Main construction process, specifically include:
Step 101: in fashioned iron column is successively arranged on raft foundation, until persisting next layer of structure of core tube region
Plate；
Step 102: right above and below above-mentioned next layer of synchronous construction fashioned iron column and full hall scaffold, the fashioned iron column of each layer
Together；
Step 103: the reinforcing bar of the peripheral structure beam of layer where construction on above-mentioned full hall scaffold persists core tube region
Structure；
Step 104: persisting the fashioned iron support replacement beam of core tube region in construction on fashioned iron column, fashioned iron support replacement beam is fixed on type
The bar construction of steel column and peripheral structure beam；
Step 105: carrying out the concrete pouring construction of peripheral structure beam；
Step 106: in the upper one layer of synchronous construction fashioned iron column and steel pipe scaffold that persist core tube region；
Step 107: in construct on steel pipe scaffold upper one layer peripheral structure beam bar construction；
Step 108: in upper one layer of the fashioned iron support replacement beam of constructing on fashioned iron column, fashioned iron support replacement beam be fixed on fashioned iron column and
The bar construction of upper one layer of peripheral structure beam；And
Step 109: carrying out the concrete pouring construction of one layer of peripheral structure beam.
The above are mainly applying for the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span of the present invention
Work technique, below using basement one (hereinafter referred to as B1 layers) and one layer of ground (hereinafter referred to as L1 layers) as the temporary of core tube region
Slow construction area, to be specifically described Specific construction scheme of the invention.Wherein, core tube region is persisted to be above-mentioned for B1 layers, L1 layers
For above-mentioned upper one layer for persisting core tube region, L1 is also one to persist core tube region, and arrangement and method for construction is substantially similar to B1 layers.
Because Core Walls Structure needs to carry out Functional Design change, Core Walls Structure and epitaxial region stage construction, B1 according to related request
Plate and L1 plate corresponding core cylinder regional structure postpone construction, after the completion of later period entirety underground structure, then separately implement.The operating condition
It causes to return in underground structure and builds period B1 plate and L1 plate there are huge cavities, it is desirable to is big in 45m × 45m Core Walls Structure large span
Surface area carries out support replacement.Fashioned iron mechanical property can be made full use of good, large carrying capacity, the good feature of cross-sectional stability is taken
Fashioned iron column+fashioned iron support replacement beam form is right as support replacement power transmission band forms, reasonable Arrangement fashioned iron column and fashioned iron support replacement beam
Force analysis is carried out at each layer bean column node, structural attachments node is designed, and corresponding technical treatment is taken to arrange
It applies, in the case where the construction for not influencing outline border and meeting related operating conditions, meets the big region support replacement requirement of Core Walls Structure large span, guarantee
Guarantee that foundation pit supporting construction is in safe and stable state before basement structure construction stage, backfilling of earthwork.
As shown in Fig. 2, being the big region support replacement construction party of Super High deep basal pit basement Core Walls Structure large span of the present embodiment
Method process.
(1) B4, B3 stratotype steel column support system are constructed
According to design requirement, apartment is constructed to after B2 layers, Core Walls Structure and epitaxial region stage construction, B1 plate and L1 plate
Corresponding region structure postpones construction, after the completion of later period entirety underground structure, then separately implements.The operating condition is caused in underground structure
It returns and builds period B1 plate and L1 plate there are huge cavities, corresponding support replacement measure need to be taken, it is ensured that effective transmitting of support replacement load.
Totally 52, H profile steel column 11 need to be arranged on floor, to guarantee that stress is avoided to concentrate, H profile steel column 11 is directly supported on raft
On the basis of plate, stability under loading reduces the influence to floor structure, but since H profile steel column load is excessive, counter-force about 70KN,
Original is designed beyond structure floor, for this purpose, column load need to be transmitted to raft foundation, B2 layers or more then uses full hall scaffold
Construction.Its fashioned iron column horizontal layout and interdependent node full-page proof are as shown in Figure 3.
As shown in Figure 4 and Figure 5, H profile steel column 11 uses H400mm × 400mm × 13mm × 21mm, support replacement section steel beam 12
Also H400mm × 400mm × 13mm × 21mm specification is used, head plate 111 is set at the top of the following fashioned iron column 11 of B2 floor plate,
Head plate 111 uses 500mm × 500mm × 20mm specification, uses between head plate 111 and corresponding upper one layer of structural slab
C20 microdilatancy pea gravel concreten 114 tamps.
As shown in fig. 6, the bottom setting back cover plate 112 of fashioned iron column 11, the use of back cover plate 112 500mm × 500mm ×
20mm specification is connected between back cover plate 112 and corresponding next layer of structural slab or raft foundation using M12 expansion bolt 113
It is fixed.
Steel are all made of Q345B in addition to indicating, and welding rod uses E43 type.The installation of fashioned iron column as shown in the figure is illustrated
Scheme, weld bead height is 8mm in addition to especially indicating in figure, and periphery is fully welded.The design of fashioned iron column 11 only considers shown in figure
The gravity load (0.5kPa) of fashioned iron support replacement beam, the self weight of fashioned iron column 11 and interim not upper people's light-steel roofing, must not act on except this
Any load in addition.
(2) B2 layers of steel column construction and full hall scaffold are set up
Interim suspension of works core tube region be (2100+26100+1900) × (2300+25950+2100)=
913.535 square metres, east-west direction spacing is that 11200,8750,10150. full hall scaffolds are constructed together with fashioned iron column, is
Guarantee fashioned iron column construction safety, upright bar spacing are 1000mm, step pitch 1000mm, and main joist should be double steel in bracket
Pipe, is just able to satisfy upper load requirement.
(3) B1 layers of steel install support
Steel is larger to support span, is lifted into designated position using apartment STT553 tower crane when installation, and has constructed in advance
At fashioned iron column accurately dock, keep connecting node accurately in place, it is ensured that load transmits downwards.
According to field condition, when fashioned iron length is inadequate, splicing connection need to be carried out, H profile steel using web connecting plate 115 and
Edge of a wing connecting plate 116 is attached lengthening to multistage H profile steel, and web connecting plate 115 and edge of a wing connecting plate 116 need to guarantee to weld
Quality is connect, weld seam hf should be greater than being equal to 8mm, and connection detail is as shown in figs. 7-9.
It is anchored in this layer of beam or floor to guarantee to change into beam, H profile steel support replacement beam 12 should be in same level, this is just
It is required that part shaped steel support replacement beam 12 is in open position in infall, single orthogonal type steel support need to be welded with using splice plate 121
Slit formula guarantees just to be able to satisfy horizontal support replacement requirement, connection structure such as Figure 10 and Figure 11 institute at node under the premise of welding quality
Show.
As shown in Figure 12 and Figure 13, H profile steel support replacement beam 12 and 11 intersection of fashioned iron column use 13 formal layout of bracket,
Should be staggered a position between fashioned iron column 11 and steel support replacement beam 12, and by the protruding bracket 13 of fashioned iron column 11, fashioned iron is changed
Support beam 12 is fixed on corresponding bracket 13, guarantees the transmitting of vertical load by weld seam.
Refering to fig. 1 shown in 4 and Figure 15, fashioned iron support replacement beam 12 and peripheral structure, such as the connection of peripheral structure beam 14.Level branch
Support is reliably connected with marginal texture crossbeam, the pre-buried junction steel plate 15 in peripheral structure beam placement, has also been constructed simultaneously
Connection bracket 16 (side back to fashioned iron support replacement beam to be connected that connection bracket is located at peripheral structure beam), guarantees that horizontal force is reliable
Ground is transmitted in structural floor.
(4) core tube region concreting is removed for B1 layers
1, concrete is the key link of Core Walls Structure support replacement construction, influences horizontal force stability related factors, due to
Support replacement beam with external structure is special formed that concrete construction is caused to have following difficult point:
(1) peripheral structure beam stirrup is closeer, and since the pre-buried junction steel plate 15 in junction causes space smaller, concrete exists
In downward transmission process, the mortar in mixture is easily tangled by stirrup, and beam bottom portion concrete is caused to lack mortar.
(2) since peripheral structure beam is crossbeam deep beam, and reinforcing bar is closeer, and vibrating spear is difficult to be delivered to crossbeam bottom,
In lifting process, vibrating spear is easy to be blocked by stirrup, and without the chance of plunger again.
(3) in process of vibrating, the bubble generated in concrete is not easy to be discharged, and can accumulate under the template of top surface, cause top surface
Concrete comb, pitted skin influence concrete perception.
For the above difficult point, the embodiment of the present invention takes following measures:
(1) in the rigid rubber pipe that piece diameter of local junction interpolation is 150mm before casting concrete, and on sebific duct surface
The slot that a width is 100mm is opened, vibrating spear is placed in slot, with vibrating spear is promoted with sebific duct is promoted, vibrating spear is kept to exist always
In sebific duct.Sebific duct conveys downwards seat bed load slurry and lower concrete as tumbling barrel simultaneously.
(2) vibrating spear for selecting the biggish 70mm of operating radius (radius), it is vibrating spear and sebific duct is first before casting concrete
It is inserted into diagonal brace, vibrates once with casting concrete with promotion vibrating spear and sebific duct, every diagonal brace.
(3) slump and divergence of strict control concrete mix, scene is before diagonal brace concrete large-area construction
It has first poured local be used as to test, the concrete mix slump is summed up in 210mm-230mm, divergence according to experimental result
The presentation quality being poured between 370mm-450mm is best.In this, as control foundation when large-area construction, in each connection
The slump and divergence, satisfactory concrete are detected before pouring in position just to be allowed to be poured.
(4) big top surface of the beam form spacing 2000mm opens air drain at node.Ventilate groove height 30mm, width 200mm, interior
Serve as a contrast finer wire net.When pouring diagonal brace concrete, if special messenger is gently shaken template in top surface template with 50mm (radius) vibrating spear, together
When observe air channel bubble, make as far as possible bubble from air channel be discharged.
(5) first floor (i.e. ground first layer or basement roof) steel pipe scaffold support system is set up
In order to guarantee bracing members construction safety, upright bar spacing is 1000mm, step pitch 1000mm, and main joist is answered in bracket
For double steel pipe, it is just able to satisfy upper load requirement.
(6) first floor steel handles support installation and top
Steel is larger to support span, is lifted into designated position using apartment STT553 tower crane when installation, and has constructed in advance
At steel column accurately dock, keep connecting node accurately in place, it is ensured that load transmits downwards, and installation node is applied such as B1 layers
Work.Decide whether to carry out for monitoring data situation in the process and at that time, in Construction of Supporting such as monitoring data are abnormal, stand
Stop construction.It has been avoided in conceptual design and work progress it is not intended that basement frame is come soil on the outside of bearing and transmitting
Pressure.
Necessary anti-corrosion, fire prevention measure need to be taken when construction and meet related specification requirement.If the waiting time is more than 3 years,
This support changing structure for use need to be assessed, and separately reinforced.
(7) it inspects for acceptance
1, fashioned iron and fashioned iron junction check the position web steel plate and edge of a wing steel plate welding quality, can not solder skip or weldering
It connects quality and does not meet quality requirement；Support the control of profile steel blanking tolerance within 80mm；Full penetration groove-weld joint
Weld reinforcement should meet within 0~4mm.
2, check the welding quality of section steel beam and pre-embedded steel slab weld, weld seam should be groove welding, and will according to scheme into
Row steel plate is reinforced；
3, the test cube in the same condition precompressed report value reserved by scene, to control the junction crossbeam supporting removal time, one
As control suitable early strength agent can be added before 85% intensity or so, pouring structure concrete.
4, the production unit of the attached bearing building such as support or connector should provide the certification of fitness of raw material, product
Book.
The big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span of the present invention is in Core Walls Structure large span
Under conditions of big region needs support replacement, using the form of fashioned iron column adding type steel support replacement beam, lateral force and support replacement, phase are effectively transmitted
Add lattice column form than traditional concrete support, largely saves material and duration.
To meet top Core Walls Structure function change request, under the conditions of basement deep basal pit, changed using fashioned iron column adding type steel
The form for supportting beam, can rationalization's cross construction with exterior domain.
This method is easy for construction using fashioned iron, and installation speed is fast, economic and environment-friendly, simultaneous type steel column and fashioned iron support replacement beam it
Between connect or weld using high-strength bolt, be easily installed disassembly, be convenient for organizing construction immediately when returning to work.
Present method solves fashioned iron support replacement beams and concrete structure junction structural beams concreting problem, ensure that water
Flat support replacement stress reliability has promotional value.
This method energy conservation and environmental protection: conventional steel bar concrete can not be recycled as material used in load transfering strip, be not inconsistent
Green construction requirement is closed, and can be recycled after use using fashioned iron support replacement beam as load transfering strip.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach and obtain
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, technology according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the range of technical solution of the present invention
It is interior.
Claims (10)
1. a kind of big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span, which is characterized in that including step
It is rapid:
In fashioned iron column is successively arranged on raft foundation, until persisting next layer of structural slab of core tube region；
In the next layer of synchronous construction fashioned iron column and full hall scaffold, the fashioned iron column consistency from top to bottom of each layer；
The bar construction of the peripheral structure beam of layer where core tube region is persisted described in the construction on the full hall scaffold；
The fashioned iron support replacement beam of core tube region is persisted described in the construction on the fashioned iron column, the fashioned iron support replacement beam is fixed on institute
State the bar construction of fashioned iron column and the peripheral structure beam；
Carry out the concrete pouring construction of the peripheral structure beam；
In the upper one layer of synchronous construction fashioned iron column and steel pipe scaffold for persisting core tube region；
In the bar construction for upper one layer of the peripheral structure beam of constructing on the steel pipe scaffold；
In described upper one layer of the fashioned iron support replacement beam of constructing on the fashioned iron column, it is vertical that the fashioned iron support replacement beam is fixed on the fashioned iron
The bar construction of column and upper one layer of the peripheral structure beam；And
Carry out the concrete pouring construction of described upper one layer of the peripheral structure beam.
2. the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span as described in claim 1, special
Sign is: the top of the fashioned iron column is equipped with head plate, and concrete is used between the head plate and the structural slab of respective layer
It tamps.
3. the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span as described in claim 1, special
Sign is: the fashioned iron support replacement beam includes at least the first direction support replacement beam and second direction support replacement beam arranged along different directions,
The first direction support replacement beam and the second direction support replacement beam are located in same level, disconnect one of them simultaneously in junction
Connection is welded with using splice plate.
4. the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span as described in claim 1, special
Sign is: the fashioned iron column is fixed in the protruding bracket of intersection with the fashioned iron support replacement beam, the fashioned iron support replacement beam
In on the corresponding bracket.
5. the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span as described in claim 1, special
Sign is, the pre-buried junction steel plate when constructing the peripheral structure beam；
Also, when constructing the fashioned iron support replacement beam, the junction steel plate is fixed in the end of the fashioned iron support replacement beam.
6. the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span as described in claim 1, special
Sign is, the pre-buried connection bracket when constructing the peripheral structure beam；
Also, diagonal brace is set in the side back to the fashioned iron support replacement beam of the peripheral structure beam, the diagonal brace is fixed on institute
State connection bracket.
7. the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span as described in claim 1, special
Sign is: described in pouring construction when the concrete of peripheral structure beam, rigid rubber pipe is preset in the bar construction, it is described hard
Vibrating spear is inserted in the fluting of surface by matter sebific duct surface fluting, and the rigid rubber pipe is formed in the inside of the bar construction
Tumbling barrel, concrete convey downwards from the tumbling barrel, and the tumbling barrel and the vibrating spear are gradually above mentioned with the floating of concrete.
8. the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span as described in claim 1, special
Sign is: described in pouring construction when the concrete of peripheral structure beam, in the connection of peripheral structure beam and the fashioned iron support replacement beam
Air channel is opened up in structure top surface of the beam template at node.
9. the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span as claimed in claim 8, special
Sign is: liner steel wire in the air channel.
10. the big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span as described in claim 1, special
Sign is: the core tube region that persists is basement one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035420.8A CN108951643B (en) | 2018-09-06 | 2018-09-06 | Super high-rise deep foundation pit basement core tube large-span large-area support changing construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035420.8A CN108951643B (en) | 2018-09-06 | 2018-09-06 | Super high-rise deep foundation pit basement core tube large-span large-area support changing construction method |
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| CN108951643A true CN108951643A (en) | 2018-12-07 |
| CN108951643B CN108951643B (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160594A (en) * | 2020-09-23 | 2021-01-01 | 成都建工第四建筑工程有限公司 | Construction method beneficial to resisting horizontal force of multi-layer special-shaped steel structure building |
Citations (4)
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| CN203808281U (en) * | 2014-05-09 | 2014-09-03 | 中船第九设计研究院工程有限公司 | Shock isolation structure for shaft bottom-hung conversion brackets |
| CN204435388U (en) * | 2014-12-24 | 2015-07-01 | 重庆建工住宅建设有限公司 | Deep foundation ditch stage construction support changing structure for use |
| CN105625568A (en) * | 2015-12-31 | 2016-06-01 | 潍坊昌大建设集团有限公司 | Fabricated concrete orthogonal spatial space grid box type tube-in-tube structure and making method thereof |
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| CN103938755A (en) * | 2014-05-09 | 2014-07-23 | 中船第九设计研究院工程有限公司 | Shock insulation structure for under-shaft hanging type transfer girders, and construction method of shock insulation structure |
| CN203808281U (en) * | 2014-05-09 | 2014-09-03 | 中船第九设计研究院工程有限公司 | Shock isolation structure for shaft bottom-hung conversion brackets |
| CN204435388U (en) * | 2014-12-24 | 2015-07-01 | 重庆建工住宅建设有限公司 | Deep foundation ditch stage construction support changing structure for use |
| CN105625568A (en) * | 2015-12-31 | 2016-06-01 | 潍坊昌大建设集团有限公司 | Fabricated concrete orthogonal spatial space grid box type tube-in-tube structure and making method thereof |
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| CN112160594A (en) * | 2020-09-23 | 2021-01-01 | 成都建工第四建筑工程有限公司 | Construction method beneficial to resisting horizontal force of multi-layer special-shaped steel structure building |
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