CN109610834A - The high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure - Google Patents
The high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure Download PDFInfo
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Abstract
The present invention provides a kind of high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure, system is monitored using intelligent elevated tool-typed formwork steel supporting platform combination wisdom, by high-altitude greatly across the top-down backward construction of horizontal structure in heavily loaded building structure, its main construction method includes the following steps: that whole spelling high-altitude is greatly across heavily loaded tool-typed formwork steel supporting platform and formwork-support on ground, main body vertical structure is constructed in advance to predetermined absolute altitude, temporary support point is arranged in main body vertical structure, Intelligent lifting is installed mechanical on main structure temporary support point, it is connected and fixed, after carrying out prefabricating load verifying on ground, the autonomous Integral synchronous of intelligent control is promoted, main body horizontal structure from top to bottom construct by backward, platform independently synchronous landing etc..Principle of the invention science, method wiseness is technologically advanced, and safe and reliable, simple process, duration are shortened, cost reduces, labor intensity mitigates.System, the active safety of realization body horizontal structure work progress are monitored in conjunction with wisdom.
Description
Technical field
The present invention relates to Civil Engineering Construction technical fields, and in particular to a kind of height of Long-span Multi-storey Frame heavy duty concrete structure
Empty construction method.
Background technique
Modern architecture height, span, load are increasing.Construction technology organizes difficulty and operation risk is also more next
It is bigger.Long-span Multi-storey Frame heavy duty concrete structure construction difficulty often exceeds the competent range of general, traditional construction method.
With the development of economic society and being constantly progressive for Building technology, city is on the middle and senior level, super high-rise building is increasing,
Due to rare, high-altitude long-span building structure, aerial conjoined structure, the high-altitude long-span structure, long cantilever construction of land resource
Design it is increasing；The serious accidents such as difficulty of construction, risk also significantly rise, and high-altitude shuttering supporting integrally collapses take place frequently,
On November 24th, 2016, Fengcheng Power Plant Accident was one of typical case.
Traditionally, high-formwork construction mode in China's mostly uses steel pipe frame body formwork.For being more than centainly for being more than certain
Scale danger it is big across heavy structure compared with big height, by analysis with calculating, the support frames such as fastener type, bowl fastening type, disk button
Body, bearing capacity and stability tend not to the shuttering supporting demand for meeting above-mentioned special construction, it is necessary to find a kind of new construction
Method, while also to meet that structure is concise, can have enough to meet the need utilization, simple process, economy, safe and reliable, quick and convenient etc. applies
Work needs.
High-altitude long-span concrete main body structure due to it is high apart from ground, span is big, from the spies such as great, construction loads is big
Point, thus constructed using the common high-supported formwork mode of traditional full hall console mode, need to set up the huge steel pipe feet of the scale of construction
Hand cradle, quality that there are high altitude operation compared with Ground Operation decline situation, and fastening node is more by hand for big scale of construction supporting frame, loosens
Node is more, and hidden danger is more, checks detection difficult, and construction operation is long in time limit, large labor intensity, and engineering cost is high, construction occupied ground
Greatly, working security is compared with various drawbacks such as Customers ' Legal Right.Thus, the drawbacks of overcoming existing construction method, design a set of high-altitude greatly across
The new method of heavily loaded concrete structure construction seems very necessary.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure,
Simple process shortens the construction period, reduces cost, reduces labor intensity, securely and reliably, in combination with intelligence control system and intelligence
Intelligent monitoring system, implementation tool formula shuttering supporting steel platform are independently rectified a deviation balance, Synchronous lifting and landing.
For the high-altitude construction difficult problem for solving Long-span Multi-storey Frame heavy duty concrete structure, the embodiment of the present invention provides a kind of multilayer
Greatly across the high-altitude construction method of heavily loaded concrete structure, monitored using intelligent elevated tool-typed formwork steel supporting platform combination wisdom
System, by the horizontal structure of Long-span Multi-storey Frame heavy duty concrete structure, from n-th layer, backward is constructed from top to bottom, implementation tool formula template
Steel supporting platform is independently rectified a deviation balance, Synchronous lifting and landing.
The present invention also provides a kind of high-altitude construction methods of Long-span Multi-storey Frame heavy duty concrete structure, include the following steps:
Step 1:
It calculates and determines high-altitude greatly across operating condition load in heavily loaded main structure construction and combinations thereof effect, Modeling Calculation, whole point
Analysis construction operating condition, review main body vertical structure are constructed each operating condition lower stress state, rigidity and deformation analysis, after pour horizontal structure with
The design of main body vertical structure connecting node, carries out reinforcement solutions to original structure when necessary；
Step 2: the structure type for determining high-altitude greatly across heavily loaded tool-typed formwork steel supporting platform is designed；
Step 3: high-altitude connects mode and adaptation across heavily loaded tool-typed formwork steel supporting platform structure model selection, tool-type steel truss group greatly
Property Strengthening Design and construction setting, meet intensity, rigidity and stability requirement；
Step 4: whole spelling tool-typed formwork steel supporting platform and formwork-support on the ground；
Step 5: the security protection system of setting tool-typed formwork steel supporting platform and emergency escape channel；
Step 6: placement tool formula steel structure truss and formwork-support safety monitoring assembly；
Step 7: needing according to the bearing of tool-type steel truss and Intelligent lifting machine work needs, carries out temporary support building-out section
Point design；
Step 8: the temporary support item that tool-typed formwork steel supporting platform and elevating mechanism installation in vertical main structure need
Part review, complementary design, production, arrangement, the technology of handling appraise and decide list, including temporary support bracket and top temporary operating platform；
Step 9: vertical main structure is constructed in advance to predetermined absolute altitude, checks review temporary support condition again；
Step 10: Intelligent lifting machinery is installed on the temporary support of tool-typed formwork steel supporting platform, tool, is connected and fixed；
Step 11: setting steel platform integrally promotes intelligence control system and the networking of wisdom safety monitoring system, debugging；
Step 12: tool-type steel platform and formwork-support load pre-compression test, detection, examination, monitoring are carried out on ground；
Step 13: according to landing load pre-compression test, detection, monitoring result, key position ess-strain is checked, checks tool-type
The safety of shuttering supporting steel platform and deflection deformation calculating parameter, the antiarch numerical value that accurate reserved main body horizontal structure needs, disappear
Except excessive deformation, guarantee that main structure geometric dimension and position meet design requirement；
Step 14: the tool-typed formwork steel supporting platform Integral synchronous for starting intelligent control is promoted between n-th layer and N-1 layers
Appropriate location, shelve, it is fixed；
Step 15: carry out high-altitude using tool-typed formwork steel supporting platform is across heavily loaded concrete main body horizontal structure roof system layer greatly
N-th layer construction, promoted steel strand wires position flooring must preformed hole, while must reserve N-1 layers of construction material requested Import & Export Department or on
Expect platform, overall process wisdom Safety monitoring early warning；
Step 16: when N layer concrete reaches predetermined demoulding condition, adjustable supports are unclamped, using intelligence control system by tool
Formula shuttering supporting steel platform entire lowering is between N-1 layers and N-2 layers, and next layer of high-altitude of progress is greatly across heavily loaded concrete master
N-1 layers of structure construction of body horizontal structure, overall process wisdom Safety monitoring early warning；
Step 17: repeating step 15 and step 16, completes high-altitude greatly across heavily loaded concrete main body structure from N-1 layers to the bottom
Backward from top to bottom construction, wisdom safety monitoring；
Step 18: after the completion of main structure construction, tool-typed formwork steel supporting platform drop to ground, carries out disintegration dismounting, so
The falsework in main structure is disassembled afterwards；
Step 19: high-altitude is carried out greatly across heavily loaded tool-typed formwork steel supporting platform cleaning and maintenance, is built for use in next time similar
Build construction.
Wherein, the high-altitude construction method of the Long-span Multi-storey Frame heavy duty concrete structure further include:
15' step between step 15 and step 16: using tool-typed formwork steel supporting platform as follow-up equipment installing engineering
With interior decoration engineering operation platform, other high-altitude construction operations of n-th layer are completed；
16' step between step 16 and step 17: using tool-typed formwork steel supporting platform as follow-up equipment construction and installation
Engineering and interior/exterior decoration engineering construction platform complete N-1 layers of other high-altitude construction operations to the bottom.
Wherein, the temporary support of the tool-typed formwork steel supporting platform in step 8 and step 10 is concrete structure or steel
Structure bracket, it is in the future dismountable on two sides main body vertical structure.According to building storey height, N layers of platform supports bracket can be set
N-1 layers of absolute altitude are placed in, bracket is also for the utilization of N-1 horizontal structure.
Further, the support conditions that installation Intelligent lifting machinery needs are steel bracket structure, the master to construct in step 9
Corresponding position on the inside of body vertical structure.
Wherein, the shellfish that the tool-typed formwork steel supporting platform in step 4 uses big market volume, versatility, turnover rate high
Thunder frame structure load-bearing, the Bailey bracket master that single single layer Bailey bracket and multiple rows of single layer Bailey bracket including being arranged by lateral span are constituted
Beam, the support secondary beam above Bailey bracket girder, the single single layer Bailey bracket and multiple rows of single layer Bailey bracket are staggered, institute
The both ends for stating Bailey bracket girder are held on the bracket on the inside of the main body vertical structure of two sides, and the support secondary beam includes being layed in shellfish
More I-steel or C-type steel above thunder frame girder, further include the multi-layer board or checkered steel plate completely spread on fashioned iron, formed uniformly by
Power transformational structure.
Further, formwork-support is provided on the support secondary beam, the formwork-support uses architecture disk button
Support frame.
Wherein, longitudinally spaced on the bracket to be equipped with multiple through slots, Bailey bracket girder passes through when for whole being promoted.
Wherein, in step 9, the vertical main structure is constructed in advance can be used rapid constructions such as " sliding formworks " to predetermined absolute altitude
Technique.
Wherein, in step 10, the Intelligent lifting machinery includes: punching hydraulic jack, the Multi-path electricity of process control
Machine drives high pressure measurement oil pump, is promoted and uses high strength steel strand, anchorage and locker, stroke gauge, travel switch.
Wherein, in step 11, it includes: portable computer, online data that the platform, which integrally promotes intelligence control system,
Wisdom early warning system is analyzed, the Synchronous lifting special procedure software with automatic deviation correction and lock function of meeting an urgent need, horizontal position shape
State signal transducer, stress and deformation signal sensor, multiple signals transform processor, data signal line or short-range wireless communication
Signal link.Platform, which integrally promotes intelligence control system, makes promotion operation controllers that can work on the ground, does not need in height
It works in empty hazardous environment.In safety monitoring system, by short-haul connections wireless signal link, safety monitoring personnel can also be with
It works on the ground.
Wherein, it in step 13, according to load pre-compression test testing result, checks tool-typed formwork steel supporting platform amount of deflection and becomes
Shape refers to be adjusted by calculating parameter, accurately reserves reversal deformation, is eliminated Bailey bracket and is deformed big and excessive deformation, guarantees main body knot
Structure geometric dimension and position meet design requirement；
Wherein, in step 15, high-altitude is carried out greatly across heavily loaded concrete main body horizontal structure using tool-typed formwork steel supporting platform
N-th layer construction, promoted steel strand wires position flooring must preformed hole, while must reserve N-1 layers of construction material requested Import & Export Department or on
Expect platform.
Wherein, the overall process Safety monitoring early warning in step 15 and step 16, is referred to and is monitored using high precision instrument
Method carries out the early warning of loading complete process monitoring to high-supported formwork system core position.Consider that the arrangement of primary and secondary Bailey beam comes
Construction loading direction and sequence is divided, plays the role of to high form-tie assembly stability control advantageous, passes through overall process and supervises safely
Control is checked amendment high form-tie assembly design and is calculated, realizes real-time dynamic security guarantee；
Wherein, in step 8, the temporary support in vertical main structure can be used as next layer of horizontal structure and connect with vertical structure
With according to building storey height, N layers of platform supports bracket can be located at N-1 layers of absolute altitude, for the utilization of N-1 horizontal structure.If single layer knot
Structure, side cuts bracket concrete or disassembly bracket, rectification revert to former design.
The advantageous effects of the above technical solutions of the present invention are as follows:
1, the invention patent technical concept is advanced, the leading rapid construction of main body vertical structure, forms larger space rigidity and carrying
Power, for utilizing.Multiple-layer horizontal structure from top to bottom construct by backward, and temporary support bracket can be used as next layer of horizontal structure and erect
It connects and uses to structure, complete most of dangerous constructing operation compared with large project on the ground, effectively reduce high-altitude long-span high branch
Mould construction operation risk, securely and reliably, structure are concise.
2, tool-typed formwork steel supporting platform of the invention can take into account main structure construction, Decorating Project and equipment peace
Engineering construction operation is filled, can reuse in other similar projects, can effectively shorten the duration, reduces engineering cost, mitigation
Labor intensity, using computer controlled intelligent lifting system combination Real-time Monitoring Data, the autonomous Synchronous lifting operation of overall process, from
Dynamic correction, reduce the personnel to operate risk of making mistakes.
3, a large amount of aerial larger construction operations of risk are converted to the whole preassembling operation on ground by the present invention, are realized flat
The necessary steps such as tread integral installation, precompressed, examination, detection parameters optimization carry out on ground, reduce peace to greatest extent
Full blast danger, overcomes the disadvantage of the tall and big formwork construction method security reliability difference of traditional console mode, due to the aerial operation platform
Versatility, safety it is good, can be used as later period Architectural Equipment installing engineering and interior/exterior decoration engineering construction platform, also maximum limit
Degree reduces unit in charge of construction's cost and expense.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one；
Fig. 2 is the use state diagram one of the embodiment of the present invention one；
Fig. 3 is the use state diagram two of the embodiment of the present invention one；
Fig. 4 is the enlarged drawing of the partial top view of the embodiment of the present invention one.
Description of symbols:
1, the reinforced Bailey bracket of single single layer；2, the reinforced Bailey bracket of multiple rows of single layer；3, bracket；4, secondary beam is supported；5, disk button
Steel tube frame；6, main body vertical structure；7, punching hydraulic jack；8, high strength steel strand；9, roof system layer.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of high-altitude construction methods of Long-span Multi-storey Frame heavy duty concrete structure, utilize intelligent elevated tool
Formula shuttering supporting steel platform combination wisdom monitors system, certainly from n-th layer by the horizontal structure of Long-span Multi-storey Frame heavy duty concrete structure
Upper and lower backward construction reduces the danger of high-altitude construction operation, increases intelligent and safe monitoring, implementation tool formula shuttering supporting steel platform
Autonomous correction balance, Synchronous lifting and landing.A large amount of aerial larger construction operations of risk are converted to the pre-splicing of ground to pretend
Industry is realized that the integral installation of platform ground, precompressed detection are checked and accepted the necessary steps such as parameter optimization and carried out on ground, is dropped to greatest extent
Low security risk, overcomes the disadvantage of the tall and big formwork construction method security reliability difference of traditional console mode, since this is applied in the air
The versatility of work platform is good safely, can be used as post facility installing engineering and interior decoration engineering operation platform, also to greatest extent
Reduce unit in charge of construction's cost and expense.
The high-altitude construction method of the Long-span Multi-storey Frame heavy duty concrete structure includes the following steps:
Step 1: calculate determine high-altitude greatly across operating condition load in heavily loaded main structure construction and combinations thereof effect, Modeling Calculation,
Global analysis is constructed operating condition, and review main body vertical structure is constructed each operating condition lower stress state, rigidity and deformation analysis, after pour level
Structure and main body vertical structure connecting node design, and carry out reinforcement solutions to original structure when necessary；
Step 2: the structure type for determining high-altitude greatly across heavily loaded tool-type (Bailey bracket etc.) shuttering supporting steel platform is designed；
Step 3: high-altitude connects across heavily loaded tool-type (Bailey bracket etc.) shuttering supporting steel platform type selecting, tool-type steel truss group greatly
Mode and adaptability Strengthening Design and construction setting, meet intensity, rigidity and stability requirement；Step 4: whole spelling on ground
Tool-typed formwork steel supporting platform and formwork-support；
Wherein, the tool-typed formwork steel supporting platform uses the Bailey bracket structure load-bearing that can be had enough to meet the need, including by lateral span cloth
The Bailey bracket girder of the single single layer Bailey bracket set and multiple rows of single layer Bailey bracket composition, the support above Bailey bracket girder time
Beam, the single single layer Bailey bracket and multiple rows of single layer Bailey bracket are staggered, and the both ends of the Bailey bracket girder are shelved and welded
On bracket on the inside of the main body vertical structure of two sides, the support secondary beam includes more I-shapeds being layed in above Bailey bracket girder
Steel or C-type steel further include the multi-layer board or checkered steel plate completely spread on fashioned iron.
Formwork-support is provided on the support secondary beam, the formwork-support uses architecture disk button support frame.
Step 5: the security protection system of setting tool-typed formwork steel supporting platform and emergency escape channel；
Step 6: placement tool formula steel structure truss and formwork-support safety monitoring assembly；
Step 7: needing according to the bearing of tool-type steel truss and Intelligent lifting machine work needs, carries out temporary support building-out section
Point design；
Step 8: the temporary support item that tool-typed formwork steel supporting platform and elevating mechanism installation in vertical main structure need
Part review, complementary design, production, arrangement, the technology of handling appraise and decide list, including temporary support bracket and top temporary operating platform；
Step 9: construction checks review temporary support condition to predetermined absolute altitude to main body vertical structure 6 again in advance；
Step 10: Intelligent lifting machinery is installed on the temporary support of tool-typed formwork steel supporting platform, tool, is connected and fixed；
Wherein, the temporary support of tool-typed formwork steel supporting platform uses bracket structure, and the main body constructed in step 9 is vertical
Corresponding position on the inside of structure, one layer of position generally below the roof system layer of high-altitude long-span concrete main body structure.
The bracket is concrete structure or steel construction on the main body vertical structure of two sides, according to building storey height, N
Layer platform supports bracket may be disposed at N-1 layers of absolute altitude, and bracket is also for the utilization of N-1 horizontal structure.In the present embodiment, the bracket
The concrete structure being preferably disposed on the main body vertical structure of two sides cuts away concrete bracket after steel platform dismounting,
Easily guarantee the flat side down of main body vertical structure.It is longitudinally spaced on the bracket to be equipped with multiple through slots, when for whole being promoted
Bailey bracket girder rises to above bracket from below bracket.
Wherein, the Intelligent lifting machinery includes punching hydraulic jack 7, the multichannel motor driven high pressure of process control
Oil-measuring pump is promoted and uses high strength steel strand 8, anchorage and locker, stroke gauge, travel switch.
Step 11: setting platform integrally promotes intelligence control system and the networking of wisdom safety monitoring system, debugging；
Wherein, it includes: portable computer, on-line data analysis wisdom early warning system that the platform, which integrally promotes intelligence control system,
System, the Synchronous lifting special procedure software with automatic deviation correction and lock function of meeting an urgent need, horizontal position status signal sensor are answered
Power and deformation signal sensor, multiple signals transform processor, data signal line or short-haul connections wireless signal link.
Step 12: tool-type steel structure truss and formwork-support load pre-compression test, detection, examination, monitoring on ground；
Step 13: according to landing load pre-compression test, detection, monitoring result, key position ess-strain is checked, checks tool-type
The safety of shuttering supporting steel platform and deflection deformation calculating parameter, the antiarch numerical value that accurate reserved main body horizontal structure needs, disappear
Except excessive deformation, guarantee that main structure geometric dimension and position meet design requirement；
Step 14: the tool-typed formwork steel supporting platform Integral synchronous for starting intelligent control is promoted between n-th layer and N-1 layers
Appropriate location, shelve, it is fixed；
Step 15: carry out high-altitude using tool-typed formwork steel supporting platform is across heavily loaded concrete main body horizontal structure roof system layer greatly
N-th layer construction, promoted steel strand wires position flooring must preformed hole, while must reserve N-1 layers of construction material requested Import & Export Department or on
Expect platform, overall process wisdom Safety monitoring early warning；
Step 16: when N layer concrete reaches predetermined demoulding condition, adjustable supports are unclamped, using intelligence control system by tool
Formula shuttering supporting steel platform entire lowering is between N-1 layers and N-2 layers, and next layer of high-altitude of progress is greatly across heavily loaded concrete master
N-1 layers of structure construction of body horizontal structure, overall process wisdom Safety monitoring early warning；
Step 17: repeating step 15 and step 16, completes high-altitude greatly across heavily loaded concrete main body structure from N-1 layers to the bottom
Backward from top to bottom construction, wisdom safety monitoring；
Step 18: after the completion of main structure construction, tool-typed formwork steel supporting platform drop to ground, carries out disintegration dismounting, so
The falsework in main structure is disassembled afterwards；
Step 19: high-altitude is carried out greatly across heavily loaded tool-typed formwork steel supporting platform cleaning and maintenance, is built for use in next time similar
Build construction.
The high-altitude construction method of above-mentioned Long-span Multi-storey Frame heavy duty concrete structure further include:
15' step between step 15 and step 16: using tool-typed formwork steel supporting platform as follow-up equipment construction and installation
Engineering and interior/exterior decoration engineering construction platform, or complete other high-altitude construction operations of n-th layer；
16' step between step 16 and step 17: using tool-typed formwork steel supporting platform as follow-up equipment construction and installation
Engineering and interior/exterior decoration engineering construction platform complete N-1 layers of other high-altitude construction operations to the bottom.It means that
After the completion of the roof system layer of high-altitude long-span concrete main body structure pours, steel platform can not be removed first, can be filled in roof system layer
Repair, auxiliary facility installation when still use steel platform to stand as construction worker operation platform, guarantee construction safety, in roof system
Steel platform is removed after layer finishing, auxiliary facility installation or drops to steel platform between N-1 layers and N-2 layers, carries out N-1
The main structure construction of layer and the installation of auxiliary facility.
Below by taking certain theatre architecture engineering as an example, technical solution of the present invention is specifically told about.
1, example project profile
The basic condition of certain theater engineering architectural design is as follows:
2, high-altitude formwork support platform Survey design
2.1, tall and big formwork region summary
High and big die plate support system refers to that engineering construction on-site concrete component template bearing height is more than 8m, or sets up
Span is more than 18m, or construction total load head is greater than 15KN/m2Or load is greater than the formwork bracing system of 20KN/m.This
Scheme carries out modeling analysis calculating using professional software.
2.2, risk analysis determines tall and big formwork region
Certain theater engineering high-supported formwork region area is big, and type is more, and formwork system selects all round victory steel tube fastener formwork system to carry out
It sets up.Disk button steel pipe support uses in high-supported formwork region.According to the biggish part-to-item project Security Administration of risk
Deng regulation, scaffolding height 8m or more, span 18m is set up or more, construction total load head 15kN/m2Or more, concentrate line load
The form work engineering and support system of 20kN/m or more belongs to the biggish part-to-item project model of risk more than certain scale
It encloses, is both needed to specially work out special construction plans for safety and organizes expert proves special scheme.
3, by taking certain grand theater as an example, the 6th layer of top cover of theatre is poured using the present invention, the structure of drama institute Bailey bracket is as schemed
It shown in 1, is saved using 321 steel bridge purlins, sets up Bailey bracket girder, bear layer 6 raising-plate load.Longitudinal Bailey bracket girder is shelved
It is laid with No. 16 I-steel (Q235) on wall side concrete bracket 3, in Bailey beam as secondary beam 4 is supported, is abound with disk on I-steel
Button support frame 5 constitutes the support system of main stage top layer beam slab.
Lateral 19.2m is used as girder across the reinforced Bailey bracket 1 of the single single layer of arrangement and the reinforced Bailey bracket 2 of three row's single layers,
Bailey bracket arranges that spacing is 1350mm, is shelved on both ends concrete bracket 3, and every Pin Bailey beam spelling length is 21m.Wherein
The girder arranged just beneath of 400mm × 1400mm is the three reinforced Bailey beams of row's single layer, totally 9 Pin, remaining position is single single layer
Reinforced Bailey beam, totally 10 Pin.3m standard beret slice is (reinforced) 280 total.
Increase concrete bracket on shear wall as Bailey beam support.
The invention patent technical concept is advanced, the leading rapid construction of main body vertical structure, and multiple-layer horizontal structure is from top to bottom
Backward construction completes most of dangerous constructing operation compared with large project on the moulding bed of ground, effectively reduces high-altitude long-span high branch
Mould construction operation risk, securely and reliably, structure is simple.Tool-typed formwork steel supporting platform is reusable, can effectively shorten
Duration reduces engineering cost, reduces labor intensity, using computer controlled intelligent lifting system combination Real-time Monitoring Data, entirely
Process independently promotes, operation of landing, and automatic deviation correction, reduce the personnel to operate risk of making mistakes.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from principle of the present invention, method, can also make several improvements and retouch, these improve and
Retouching also should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure, which is characterized in that utilize intelligent elevated tool-type
Shuttering supporting steel platform combination wisdom monitors system, by the horizontal structure of Long-span Multi-storey Frame heavy duty concrete structure from n-th layer from upper
And the construction of lower backward, implementation tool formula shuttering supporting steel platform are independently rectified a deviation balance, Synchronous lifting and landing.
2. a kind of high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure, which comprises the steps of:
Step 1: calculate determine high-altitude greatly across operating condition load in heavily loaded main structure construction and combinations thereof effect, Modeling Calculation,
Global analysis is constructed operating condition, and review main body vertical structure is constructed each operating condition lower stress state, rigidity and deformation analysis, after pour level
Structure and main body vertical structure connecting node design, and carry out reinforcement solutions to original structure when necessary；
Step 2: the structure type for determining high-altitude greatly across heavily loaded tool-typed formwork steel supporting platform is designed；
Step 3: high-altitude connects mode and adaptation across heavily loaded tool-typed formwork steel supporting platform structure model selection, tool-type steel truss group greatly
Property Strengthening Design and construction setting, meet intensity, rigidity and stability requirement；
Step 4: whole spelling tool-typed formwork steel supporting platform and formwork-support on the ground；
Step 5: the security protection system of setting tool-typed formwork steel supporting platform and emergency escape channel；
Step 6: placement tool formula steel structure truss and formwork-support safety monitoring assembly；
Step 7: needing according to the bearing of tool-type steel truss and Intelligent lifting machine work needs, carries out temporary support building-out section
Point design；
Step 8: the temporary support item that tool-typed formwork steel supporting platform and elevating mechanism installation in vertical main structure need
Part review, complementary design, production, arrangement, the technology of handling appraise and decide list, including temporary support bracket and top temporary operating platform；
Step 9: vertical main structure is constructed in advance to predetermined absolute altitude, checks review temporary support condition again；
Step 10: Intelligent lifting machinery is installed on the temporary support of tool-typed formwork steel supporting platform, tool, is connected and fixed；
Step 11: setting steel platform integrally promotes intelligence control system and the networking of wisdom safety monitoring system, debugging；
Step 12: tool-type steel platform and formwork-support load pre-compression test, detection, examination, monitoring are carried out on ground；
Step 13: according to landing load pre-compression test, detection, monitoring result, key position ess-strain is checked, checks tool-type
The safety of shuttering supporting steel platform and deflection deformation calculating parameter, the antiarch numerical value that accurate reserved main body horizontal structure needs, disappear
Except excessive deformation, guarantee that main structure geometric dimension and position meet design requirement；
Step 14: the tool-typed formwork steel supporting platform Integral synchronous for starting intelligent control is promoted between n-th layer and N-1 layers
Appropriate location, shelve, it is fixed；
Step 15: carry out high-altitude using tool-typed formwork steel supporting platform is across heavily loaded concrete main body horizontal structure roof system layer greatly
N-th layer construction, promoted steel strand wires position flooring must preformed hole, while must reserve N-1 layers of construction material requested Import & Export Department or on
Expect platform, overall process wisdom Safety monitoring early warning；
Step 16: when N layer concrete reaches predetermined demoulding condition, adjustable supports are unclamped, using intelligence control system by tool
Formula shuttering supporting steel platform entire lowering is between N-1 layers and N-2 layers, and next layer of high-altitude of progress is greatly across heavily loaded concrete master
N-1 layers of structure construction of body horizontal structure, overall process wisdom Safety monitoring early warning；
Step 17: repeating step 15 and step 16, completes high-altitude greatly across heavily loaded concrete main body structure from N-1 layers to the bottom
Backward from top to bottom construction, wisdom safety monitoring；
Step 18: after the completion of main structure construction, tool-typed formwork steel supporting platform drop to ground, carries out disintegration dismounting, so
The falsework in main structure is disassembled afterwards；
Step 19: high-altitude is carried out greatly across heavily loaded tool-typed formwork steel supporting platform cleaning and maintenance, is built for use in next time similar
Build construction.
3. the high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure according to claim 2, which is characterized in that also wrap
It includes: the 15' step between step 15 and step 16: using tool-typed formwork steel supporting platform as follow-up equipment construction and installation work
Journey and interior/exterior decoration engineering construction platform, or complete other high-altitude construction operations of n-th layer；
16' step between step 16 and step 17: using tool-typed formwork steel supporting platform as follow-up equipment construction and installation
Engineering and interior/exterior decoration engineering construction platform complete N-1 layers of other high-altitude construction operations to the bottom.
4. the high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure according to claim 2, which is characterized in that the 10th
In step, the temporary support of tool-typed formwork steel supporting platform uses corbel type structure, and the main body constructed in step 9 is vertically tied
Corresponding position on the inside of structure.
5. the high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure according to claim 4, which is characterized in that described
Bracket is steel construction bracket or cast-in-place monoblock type bracket on the main body vertical structure of two sides.
6. the high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure according to claim 2, which is characterized in that the 4th
Tool-typed formwork steel supporting platform in step uses the load-bearing of Bailey truss structure, including the single single layer shellfish arranged by lateral span
Bailey bracket girder, the support secondary beam above Bailey bracket girder that thunder frame and multiple rows of single layer Bailey bracket are constituted, the single list
Layer Bailey bracket and multiple rows of single layer Bailey bracket are staggered, and the both ends of the Bailey bracket girder are held in the main body vertical structure of two sides
On the bracket of side, it further includes fashioned iron that the support secondary beam, which includes more I-steel or the C-type steel being layed in above Bailey bracket girder,
On the multi-layer board or checkered steel plate that completely spread.
7. the high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure according to claim 6, which is characterized in that described
It is provided with formwork-support on support secondary beam, architecture disk button support frame can be used in the formwork-support.
8. the high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure according to claim 4 or 5, which is characterized in that
It is longitudinally spaced on the bracket to be equipped with multiple through slots.
9. the high-altitude construction method of Long-span Multi-storey Frame heavy duty concrete structure according to claim 2, which is characterized in that the 10th
In step, the Intelligent lifting machinery includes: punching hydraulic jack, the multichannel motor driven high pressure measurement oil of process control
Pump is promoted and uses high strength steel strand, anchorage and locker, stroke gauge, travel switch；
In step 11, it includes: portable computer that the platform, which integrally promotes intelligence control system, and on-line data analysis wisdom is pre-
Alert system, the Synchronous lifting special procedure software with automatic deviation correction and lock function of meeting an urgent need, horizontal position status signal sensing
Device, stress and deformation signal sensor, multiple signals transform processor, data signal line or short-haul connections wireless signal link.
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| CN113494127A (en) * | 2021-07-09 | 2021-10-12 | 上海宝冶集团有限公司 | Construction method for layered lifting of large-span open-web corridor steel platform |
| CN115343448A (en) * | 2022-10-18 | 2022-11-15 | 湖南大学 | Novel movable door model test device and method based on soil arch effect research |
| CN115354844A (en) * | 2022-09-19 | 2022-11-18 | 上海建工集团股份有限公司 | Integral sliding type steel platform system for circular deep foundation pit |
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