CN108343155B - It is a kind of to improve the large span construction method that even across hangar internal force is distributed - Google Patents
It is a kind of to improve the large span construction method that even across hangar internal force is distributed Download PDFInfo
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- CN108343155B CN108343155B CN201810038100.1A CN201810038100A CN108343155B CN 108343155 B CN108343155 B CN 108343155B CN 201810038100 A CN201810038100 A CN 201810038100A CN 108343155 B CN108343155 B CN 108343155B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
Abstract
It is a kind of to improve the large span construction method that even across hangar internal force is distributed, applied by centering support in the construction process and forces displacement, the distribution of gate Internal Force of Truss is adjusted, cuts down the internal force peak value at intermediate support, fill up that internal force low ebb at span centre position, to be distributed the internal force of gate truss more uniform；Compared with conventional construction method, present invention has the advantage that the internal force peak value of 1, gate truss is cut in, bar cross section type selecting tends to be simple；2, the Stiffness Distribution of structural system is more balanced continuous, tends to uniformly, reduce rigidity mutation, improve the anti-seismic performance of structure entirety；3, the technical-economic index of long-span hangar is greatly improved；4, internal force is evenly distributed, and stock utilization is high, and the efficiency of structural system is greatly enhanced；5, the Stress property of the roof system rack supported to it has no adverse effects；6, realize that support displacement, construction cost are low by Gravitative Loads.It can be widely applied to the construction of large span system.
Description
Technical field
The present invention relates to building engineering field, especially a kind of hangar construction method.
Background technique
With the continuous promotion of China's economic strength, AIRLINE & AIRPORT by the high-end vehicles, is changed into public traffic work
Tool.Under current hinge air net system, the takeoff and landing amount of some large aerospace hub airports has showed saturation
Situation, and the problem of large-scale wide-bodied aircraft can effectively solve airport congestion, large-scale wide-bodied aircraft will have more wide city
Field prospect.
For the annual airliner order volume in China more than 300 framves, engineering maintenance market will welcome eruptive growth at present
Good situation.Hangar is repaired compared to light engine position, multimachine position hangar has the following characteristics that 1) aircraft flexible arrangement；2) hangar is empty
Between utilization rate it is high, the marginal space between two large-scale expanded letter seats in the plane, which can intert, parks the narrow body single channel passenger plane of maintenance；3) fly
Various miscellaneous function rooms needed for machine repairs can be with centralized arrangement, and Logistics Transportation is at low cost；4) multimachine position hangar can pass through gate
It is mutually displaced the purpose for realizing aircraft inbound/outbound process, it is not necessary that Men Ku is separately provided, land utilization ratio is high.
Four seats in the plane even across hangar its plane span direction size between 320m~350m, depth direction size 70m~
Between 120m.Store door considers the empennage height of aircraft towards taxiway or airplane parking area, store door clear height generally 21~
Between 26m；Since suspension equipment occupied space is arranged in the hall of seat in the plane, clear height is generally in 26m~30m or so；Accessory occupancy
It can be in hangar other three face rings around arrangement according to the stream of people, logistics relation.In hangar plane three sides can be set armored concrete or
Steel construction support column is arranged electric push-and-pull gate along store door opening edge or suspension promotes gate.In order to can be two big
Type jumbo jet workover rig interdigit is interspersed to park the narrow body passenger plane of single channel, improves hangar maintainability, store door opening edge edge
A support column only is arranged in middle position in addition to side column in span direction, for four seats in the plane even across hangar, gate opening edge across
Degree is between 160m+160m~175m+175m.The emphasis and difficult point that super-span roof design designs for hangar.Previous sets
In meter, roof system generally uses three layer flat plate fashioned iron grid structure or multistage primary and secondary truss structure system, along structural span direction
On one side without flooring support, using the space box beam being made of two Pin or more Pin large span steel truss as edge member, bearing
Roof system rack or multistage primary and secondary truss structure system.
But for existing structure, since roof system plane is long and narrow, length-width ratio is more than 3, and structure shows very strong list
To mechanical characteristic, 90% or more of roof system load is transferred to gate opening fringe truss and rear gable bearing colonnade, gate along short
The Stress property of truss needs to bear the weight of the nearly half of roof system close to two span continuous beams, internal force peak at span centre support
Value is 1.8 times of single span span centre or so, and maximum internal force peak value is up to 6000 tons.Therefore, traditional design scheme shortcoming has:
1, the weight of hangar roof system 60%~70% concentrates on the open side in gate: China Chinese Civil Aviation Maintenance base is generally located at
Areas of High Earthquake Intensity area, geological process design one of control selector for long-span hangar, since architecture quality distribution is excessively uneven,
Cause structural system anti-seismic performance bad.
2, gate opening edge Internal Force of Truss be unevenly distributed, stock utilization it is low.
3, local rod piece internal force peak value is huge, and section type selecting is difficult.
4, anti-seismic performance and structure technology economic indicator be not good enough.
Summary of the invention
The object of the present invention is to provide a kind of construction methods of improvement large span even across hangar internal force distribution, to solve existing
The technical issues of structural system quality and internal force are unevenly distributed.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of to improve the large span construction method that even across hangar internal force is distributed, the front of the hangar is store door, packet
Include the gate center pillar positioned at the gate side column of gate two sides and positioned at gate center.
The column braces structure that the other three side uniform intervals of hangar are provided with support column and are connected between support column,
Middle support column includes rear gable support column and side wall support column.
The roof structure of hangar includes rooftop air conditioning unit and roof system building enclosure, wherein rooftop air conditioning unit includes roof system master
Frame and gate truss, the gate truss is across being supported on gate side column and gate center pillar.
Specific step is as follows:
Step 1, construction support column, gate side column and gate center pillar.
The component of rooftop air conditioning unit is transported to scene by step 2.
Step 3, in installation on ground rooftop air conditioning unit.
Assembled good rooftop air conditioning unit is overall increased to designed elevation using lifting system by step 4.
Step 5, the support of rooftop air conditioning unit and support column and gate side column are installed it is in place, and by support column and gate
Lifting system on side column is removed, at this point, support is temporarily in place using the lifting system on gate center pillar in gate truss.
Step 6 is gradually sunk using support in lifting system control rooftop air conditioning unit, until rooftop air conditioning unit self weight is to big
Support applies the forced displacement of design requirement in door truss.
Step 7 installs support in gate truss in place, and the lifting system on gate center pillar is removed.
Step 8, roof system containment system of constructing.
Step 9 installs roof system suspension equipment below rooftop air conditioning unit.
Step 10 is fixed all supports by design requirement.
The calculation of the forced displacement:
After rooftop air conditioning unit is integrally promoted in place, support in gate truss is applied under rooftop air conditioning unit Gravitative Loads
Force displacement, at this point, support moment value M is shown in formula 1 in gate truss, wherein l be between gate side column and gate center pillar away from
From it is constant that EI, which is the section bending stiffness of gate truss:
After the construction of roof system building enclosure, increases on gate truss and drawn by roof system building enclosure and roof system suspension equipment
The external load q risen2, finally, the external load that gate truss is born has: forcing displacement, rooftop air conditioning unit gravity load q1And room
Load q caused by lid building enclosure and roof system suspension equipment2, at this point, support moment value M in gate truss1And mid span moment value M2
See formula 2,3, wherein l is the distance between gate side column and gate center pillar, wherein q=q1+q2:
It enables formula 2, formula 3 equal, and formula 1 is brought into, can obtain that displacement is forced to see formula 4.
The distance between the gate side column and gate center pillar range are 100m~200m.
In the step 3, to the pre- arch camber of rooftop air conditioning unit, springing quantum is consistent with forced displacement.
Lifting system in the step 4 includes lifting bracket, the hydraulic rockshaft being arranged on lifting bracket, connection
The control system of steel strand wires and control hydraulic rockshaft between hydraulic rockshaft and rooftop air conditioning unit suspension centre.
Wherein, the top of support column, gate side column and gate center pillar, including supporting leg and lifting beam is arranged in lifting bracket,
The length of lifting beam is greater than the width of each column, the overhanging of its end.
Hydraulic rockshaft is correspondingly connected at the overhanging end of lifting beam, and be located at corresponding rooftop air conditioning unit suspension centre just on
Side.
In the step 6, by adjusting the oil cylinder working-pressure of hydraulic rockshaft, the gradually sinking of rooftop air conditioning unit is realized.
When support installation is in place in the step 5 and step 7, vertical direction only is carried out to support and is fixed, without water
Square to fixation.
In step 10, when all supports is fixed, the horizontal direction of support is fixed.
The layer Steel Structure is the either multistage primary and secondary truss structure of space grid structure.
When the layer Steel Structure is multistage primary and secondary truss structure, settled using substep, the specific steps are as follows:
Specific step is as follows:
Step 1, construction support column, gate side column and gate center pillar.
The component of rooftop air conditioning unit is transported to scene by step 2.
Step 3, in installation on ground gate truss.
Step 4, using lifting system by assembled good gate truss integral lifting to designed elevation.
The support of gate truss and gate side column are installed in place, and the lifting system on gate side column are torn open by step 5
It removes, at this point, support is temporarily in place using lifting system in gate truss.
Step 6 is gradually sunk using support in lifting system control gate truss, until truss self weight in gate is to gate purlin
Support applies the forced displacement of design requirement in frame.
Step 7 installs support in gate truss in place, and the lifting system on gate center pillar is removed.
Step 8 installs roofing truss step by step, completes the construction of roofing body frame.
Step 9, roof system containment system of constructing.
Step 10 installs roof system suspension equipment below rooftop air conditioning unit.
Step 11 is fixed all supports by design requirement.
Compared with prior art the invention has the characteristics that and the utility model has the advantages that
The present invention is directed to the deficiency of traditional multimachine position maintenance hangar design, devises a kind of new construction method, by
In work progress centering support apply force displacement, adjustment gate Internal Force of Truss distribution, cut down intermediate support at internal force peak value,
The internal force low ebb filled up at span centre position, to be distributed the internal force of gate truss more uniform；Compared with conventional construction method, this hair
The bright internal force peak value for having the advantage that 1, gate truss is cut in, and bar cross section type selecting tends to be simple；2, structural system is rigid
Degree distribution is more balanced continuous, tends to uniformly, reduce rigidity mutation, improve the anti-seismic performance of structure entirety；3, composition passes
The steel plate thickness of the rod piece of system design gate truss generally can be more than 100mm, and for thick steel plate due to rolling, strength retrogression is very big
And it is expensive, procurement cycle is very long, using the technology of the present invention design four seats in the plane two even across maintenance hangar, can be by gate truss
Peak value internal force is down within the scope of the bearing capacity of round steel pipe, thus gate truss using round steel tubular truss can be realized two even across,
The steel using amount of gate truss is greatly lowered, can generally save 40%~50%, and processing, production and the assembly of gate truss
Expense declines to a great extent, and greatly improves the technical-economic index of long-span hangar；4, internal force is evenly distributed, stock utilization
The efficiency of height, structural system is greatly enhanced；5, the Stress property of the roof system rack supported to it has no adverse effects；6, it leans on
Gravitative Loads realize that support displacement, construction cost are low.It, can be by gate purlin using construction method of the present invention by taking existing hangar as an example
The internal force of frame support rod piece cuts down 1000 tons or so.
It the composite can be widely applied to the construction of large span system.
Detailed description of the invention
The present invention will be further described in detail with reference to the accompanying drawing.
Fig. 1 is the overlooking structure diagram of hangar of the present invention.
Fig. 2 is the side structure schematic view of hangar of the present invention.
Fig. 3 is the side structure schematic view of gate truss of the present invention.
Fig. 4 is the structural schematic diagram of the rooftop air conditioning unit of the embodiment of the present invention one.
Fig. 5 is the side structure schematic view of the rooftop air conditioning unit of the embodiment of the present invention one.
Fig. 6 is the structural schematic diagram of the rooftop air conditioning unit of the embodiment of the present invention two.
Fig. 7 is that the present invention forces displacement to deduce process schematic.
Fig. 8 is the structural schematic diagram of lifting system of the present invention.
Fig. 9 is the interim structural schematic diagram in place of support in gate truss of the present invention.
Figure 10 is the structural schematic diagram that support is installed in gate truss of the present invention.
Appended drawing reference: gable support column, 5- side wall after 1- store door, the gate 2- center pillar, the gate 3- side column, 4-
Support column, 6- roof system body frame, 7- roof system suspension equipment, 8- column braces structure, the gate 9- truss.
Specific embodiment
For embodiment referring to shown in Fig. 1, Fig. 2, Fig. 3, this large span that improves connects the construction method that across hangar internal force is distributed, institute
The front for stating hangar is store door 1, the gate center pillar 2 including being located at the gate side column 3 of gate two sides and positioned at gate center；
The column braces structure 8 that the other three side uniform intervals of hangar are provided with support column and are connected between support column, wherein supporting
Column includes rear gable support column 4 and side wall support column 5；The roof structure of hangar includes rooftop air conditioning unit and roof system building enclosure,
Wherein, rooftop air conditioning unit includes roof system body frame and gate truss 9, and the gate truss 9 is across being supported on gate side column and gate
On center pillar, the specific steps are as follows:
Step 1, construction support column, gate side column and gate center pillar.
The component of rooftop air conditioning unit is transported to scene by step 2.
Step 3, in installation on ground rooftop air conditioning unit.
Assembled good rooftop air conditioning unit is overall increased to designed elevation using lifting system: for large-scale knot by step 4
Structure, in order to avoid rod piece influences each other in lifting process, meeting piecemeal synchronizes promotion and after being promoted in place, carries out high-altitude
Dress loose mail is mended, rooftop air conditioning unit is integrally joined the two sections of a bridge, etc.
Step 5, the support of rooftop air conditioning unit and support column and gate side column are installed it is in place, and by support column and gate
Lifting system on side column is removed, at this point, support is temporarily in place using the lifting system on gate center pillar in gate truss,
Step 6 is gradually sunk using support in lifting system control rooftop air conditioning unit, until rooftop air conditioning unit self weight is to big
Support applies the forced displacement of design requirement in door truss.
Step 7 installs support in gate truss in place, and the lifting system on gate center pillar is removed.
Step 8, roof system containment system of constructing.
Step 9 installs roof system suspension equipment 7 below rooftop air conditioning unit.
Step 10 is fixed all supports by design requirement.
The calculation of the forced displacement, it is shown in Figure 7, it is the moment of flexure of each state of gate truss in figure
Figure:
It is integrally promoted in rooftop air conditioning unit in place and after the closure of high-altitude, to gate truss under rooftop air conditioning unit Gravitative Loads
Middle support, which applies, forces displacement, at this point, support moment value M is shown in formula 1 in gate truss, wherein l is in gate side column and gate
The distance between column, EI are the section bending stiffness of gate truss, are constant:
After the construction of roof system building enclosure, increases on gate truss and drawn by roof system building enclosure and roof system suspension equipment
The external load q risen2, finally, the external load that gate truss is born has: forcing displacement, rooftop air conditioning unit gravity load q1And room
Load q caused by lid building enclosure and roof system suspension equipment2, various for small deformation structural system according to structural mechanics principle
The internal force that load generates in gate truss is unrelated with loading sequence.Using the force method or displacement method of structural mechanics, can acquire big
Door truss is in external load Δ and q1、q2Internal force (moment of flexure) distribution map under effect, at this point, support moment value M in gate truss1And
Mid span moment value M2See formula 2,3, wherein l is the distance between gate side column and gate center pillar, wherein q=q1+q2:
It enables formula 2, formula 3 equal, and formula 1 is brought into, can obtain that displacement is forced to see formula 4.
This value is the support settlement estimated value when gate truss mid span moment is equal to moment of flexure at support in gate truss,
For estimating the distance of support settlement in support displacement method, the forced displacement for applying design requirement to support in gate truss is
Refer to the forced displacement for applying design requirement at the middle support position of gate truss.
According to the energy method principle of structural mechanics, the support stiffness of forced displacement that gate truss is applied to gate truss
It does not influence, i.e., this method is both without the stress performance of the rooftop air conditioning unit of improvement gate truss support, also without reduction gate
The stress performance of the rooftop air conditioning unit of truss support only changes the internal force distribution of gate truss.
The distance between the gate side column and gate center pillar range are 100m~200m, and general hangar span is 160m+
Between 160m~175m+175m.
In the step 3, pre- arch camber is carried out to support position in rooftop air conditioning unit, springing quantum is consistent with forced displacement,
The gate truss of traditional design is not need to carry out pre- arch camber to support position in gate truss, it is only necessary to pre- in the position of span centre
Arch camber can carry out pre- arch camber with centering support position in this example.
Referring to shown in Fig. 8, Fig. 9, Figure 10, the lifting system in the step 4 includes that lifting bracket 12, setting are being promoted
Hydraulic rockshaft 10 on bracket, the steel strand wires 11 being connected between hydraulic rockshaft and rooftop air conditioning unit suspension centre and control liquid
Press the control system of lifter.
Wherein, the top of support column, gate side column and gate center pillar, including supporting leg and promotion is arranged in lifting bracket 12
Beam, the length of lifting beam are greater than the width of each column, the overhanging of its end.
Hydraulic rockshaft is correspondingly connected at the overhanging end of lifting beam, and be located at corresponding rooftop air conditioning unit suspension centre just on
Side.
Shown in Figure 9, the lifting system on gate center pillar is symmetrical, in the step 6, by adjusting hydraulic mention
The oil cylinder working-pressure for rising device, realizes the gradually sinking of rooftop air conditioning unit.
When support installation is in place in the step 5 and step 7, vertical direction only is carried out to support and is fixed, without water
Square to fixation.
In step 10, when all supports is fixed, the horizontal direction of support is fixed.
The layer Steel Structure is space grid structure, is one structure of embodiment, or more referring to fig. 4, shown in Fig. 5
Grade primary and secondary truss structure, it is shown in Figure 6, it is two structure of embodiment.
When the layer Steel Structure is multistage primary and secondary truss structure, settled using substep, the specific steps are as follows:
Specific step is as follows:
Step 1, construction support column, gate side column and gate center pillar.
The component of rooftop air conditioning unit is transported to scene by step 2.
Step 3, in installation on ground gate truss.
Step 4, using lifting system by assembled good gate truss integral lifting to designed elevation.
The support of gate truss and gate side column are installed in place, and the lifting system on gate side column are torn open by step 5
It removes, at this point, support is temporarily in place using lifting system in gate truss,
Step 6 is gradually sunk using support in lifting system control gate truss, until truss self weight in gate is to gate purlin
Support applies the forced displacement of design requirement in frame.
Step 7 installs support in gate truss in place, and the lifting system on gate center pillar is removed.
Step 8 installs roofing truss step by step, completes the construction of roofing body frame.
Step 9, roof system containment system of constructing.
Step 10 installs roof system suspension equipment 7 below rooftop air conditioning unit.
Step 11 is fixed all supports by design requirement.
It, can be by gate using inventive technique scheme by taking existing Beijing Capital International Airport 176m+176m is across hangar as an example
The peak-peak internal force of truss is cut down by 5000 tons to 4000 tons or so.
Claims (9)
1. a kind of improve the large span construction method that even across hangar internal force is distributed, which is characterized in that
The front of the hangar is store door (1), including being located at the gate side column (3) of gate two sides and positioned at gate center
Gate center pillar (2)；
The column braces structure (8) that the other three side uniform intervals of hangar are provided with support column and are connected between support column,
Middle support column includes rear gable support column and side wall support column (5)；
The roof structure of hangar includes rooftop air conditioning unit and roof system building enclosure, wherein rooftop air conditioning unit include roof system body frame and
Gate truss (9), the gate truss (9) is across being supported on gate side column and gate center pillar, the specific steps are as follows:
Step 1, construction support column, gate side column and gate center pillar；
The component of rooftop air conditioning unit is transported to scene by step 2；
Step 3, in installation on ground rooftop air conditioning unit；
Assembled good rooftop air conditioning unit is overall increased to designed elevation using lifting system by step 4；
Step 5, the support of rooftop air conditioning unit and support column and gate side column are installed it is in place, and by support column and gate side column
On lifting system remove, at this point, support is temporarily in place using the lifting system on gate center pillar in gate truss；
Step 6 is gradually sunk using support in lifting system control rooftop air conditioning unit, until rooftop air conditioning unit self weight is to gate purlin
Support applies the forced displacement of design requirement in frame；
Step 7 installs support in gate truss in place, and the lifting system on gate center pillar is removed；
Step 8, roof system containment system of constructing；
Step 9 installs roof system suspension equipment (7) below rooftop air conditioning unit；
Step 10 is fixed all supports by design requirement.
2. according to claim 1 improve the large span construction method that even across hangar internal force is distributed, it is characterised in that: described
Force the calculation of displacement:
After rooftop air conditioning unit is integrally promoted in place, support in gate truss is applied under rooftop air conditioning unit Gravitative Loads and is forced
Displacement, at this point, support moment value M is shown in formula 1 in gate truss, wherein l is the distance between gate side column and gate center pillar, EI
It is constant for the section bending stiffness of gate truss:
After the construction of roof system building enclosure, increase as caused by roof system building enclosure and roof system suspension equipment on gate truss
External load q2, finally, the external load that gate truss is born has: forcing displacement, rooftop air conditioning unit gravity load q1And roof system encloses
Load q caused by protection structure and roof system suspension equipment2, at this point, support moment value M in gate truss1And mid span moment value M2See formula
2,3, wherein l is the distance between gate side column and gate center pillar, wherein q=q1+q2:
It enables formula 2, formula 3 equal, and formula 1 is brought into, can obtain that displacement is forced to see formula 4；
3. according to claim 1 improve the large span construction method that even across hangar internal force is distributed, it is characterised in that: described
The distance between gate side column and gate center pillar range are 100m~200m.
4. according to claim 1 improve the large span construction method that even across hangar internal force is distributed, it is characterised in that: described
In step 3, to the pre- arch camber of rooftop air conditioning unit, springing quantum is consistent with forced displacement.
5. according to claim 1 improve the large span construction method that even across hangar internal force is distributed, it is characterised in that: described
Lifting system in step 4 includes lifting bracket (12), the hydraulic rockshaft (10) being arranged on lifting bracket, is connected to liquid
It presses the steel strand wires (11) between lifter and rooftop air conditioning unit suspension centre and controls the control system of hydraulic rockshaft；
Wherein, the top of support column, gate side column and gate center pillar, including supporting leg and lifting beam is arranged in lifting bracket (12),
The length of lifting beam is greater than the width of each column, the overhanging of its end；
Hydraulic rockshaft is correspondingly connected at the overhanging end of lifting beam, and is located at the surface of the suspension centre of corresponding rooftop air conditioning unit.
6. according to claim 5 improve the large span construction method that even across hangar internal force is distributed, it is characterised in that: described
In step 6, by adjusting the oil cylinder working-pressure of hydraulic rockshaft, the gradually sinking of rooftop air conditioning unit is realized.
7. according to claim 1 improve the large span construction method that even across hangar internal force is distributed, it is characterised in that: described
When support installation is in place in step 5 and step 7, vertical direction only is carried out to support and is fixed, is fixed without horizontal direction；
In step 10, when all supports is fixed, the horizontal direction of support is fixed.
8. according to claim 1 improve the large span construction method that even across hangar internal force is distributed, it is characterised in that: described
Layer Steel Structure is the either multistage primary and secondary truss structure of space grid structure.
9. according to claim 8 improve the large span construction method that even across hangar internal force is distributed, it is characterised in that: described
When layer Steel Structure is multistage primary and secondary truss structure, settled using substep, the specific steps are as follows: specific step is as follows:
Step 1, construction support column, gate side column and gate center pillar；
The component of rooftop air conditioning unit is transported to scene by step 2；
Step 3, in installation on ground gate truss；
Step 4, using lifting system by assembled good gate truss integral lifting to designed elevation；
Step 5 installs the support of gate truss and gate side column in place, and the lifting system on gate side column is removed, this
When, support is temporarily in place using lifting system in gate truss,
Step 6 is gradually sunk using support in lifting system control gate truss, until truss self weight in gate is in gate truss
The forced displacement of support application design requirement；
Step 7 installs support in gate truss in place, and the lifting system on gate center pillar is removed；
Step 8 installs roofing truss step by step, completes the construction of roofing body frame；
Step 9, roof system containment system of constructing；
Step 10 installs roof system suspension equipment (7) below rooftop air conditioning unit；
Step 11 is fixed all supports by design requirement.
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| CN110905075B (en) * | 2019-11-22 | 2021-01-26 | 江苏中森建筑设计有限公司 | Prestressed space grid structure |
| CN110765545B (en) * | 2019-11-28 | 2023-03-21 | 北京市第三建筑工程有限公司 | Lifting system of hangar steel grid structure and modeling analysis method |
| CN111779274A (en) * | 2020-07-10 | 2020-10-16 | 广州协安建设工程有限公司 | Construction method for integrally lifting temporary hoisting point of large-span unequal-height steel structure net rack |
| CN111877828A (en) * | 2020-07-24 | 2020-11-03 | 中国航空国际建设投资有限公司 | Aircraft hangar and roof structure thereof |
| CN114575463B (en) * | 2022-04-28 | 2022-07-01 | 中国航空规划设计研究总院有限公司 | Large-span maintenance hangar truss system and L-shaped lattice column thereof |
| CN114575469B (en) * | 2022-05-05 | 2022-07-05 | 中国航空规划设计研究总院有限公司 | Large-span hangar roof suspension equipment node system and installation method thereof |
| CN115182458B (en) * | 2022-09-09 | 2022-11-22 | 清华大学建筑设计研究院有限公司 | Spatial grid structure suitable for super large span |
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|---|---|---|---|---|
| CN102864840B (en) * | 2012-10-15 | 2014-07-02 | 江苏科技大学 | Pre-stressed steel frame for exerting pre-stress by support displacement method and fabrication method of pre-stressed steel frame |
| CN103696494B (en) * | 2013-12-11 | 2016-03-30 | 中冶天工上海十三冶建设有限公司 | The computer of complex space trussed construction controls hydraulic synchronizing lifting construction method |
| CN104213714B (en) * | 2014-08-27 | 2016-03-09 | 中国建筑第二工程局有限公司 | A kind of lifting suspension centre ruggedized construction of ultra-large type roof truss and construction method for hanging |
| CN104805902B (en) * | 2015-02-10 | 2017-08-25 | 中国航空规划设计研究总院有限公司 | It is a kind of to improve the structure of hangar stress performance |
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2018
- 2018-01-16 CN CN201810038100.1A patent/CN108343155B/en active Active
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