CN106799094B - A kind of dust collector box body H-shaped section Column stability enhancing construction and method - Google Patents
A kind of dust collector box body H-shaped section Column stability enhancing construction and method Download PDFInfo
- Publication number
- CN106799094B CN106799094B CN201710052921.6A CN201710052921A CN106799094B CN 106799094 B CN106799094 B CN 106799094B CN 201710052921 A CN201710052921 A CN 201710052921A CN 106799094 B CN106799094 B CN 106799094B
- Authority
- CN
- China
- Prior art keywords
- column
- ribbed stiffener
- wallboard
- steel slab
- strengthening steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 52
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 47
- 239000000428 dust Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000003351 stiffener Substances 0.000 claims abstract description 123
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 117
- 239000010959 steel Substances 0.000 claims abstract description 117
- 238000005728 strengthening Methods 0.000 claims abstract description 100
- 230000002452 interceptive effect Effects 0.000 claims description 8
- 230000003601 intercostal effect Effects 0.000 claims description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 230000001976 improved effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 17
- 230000003014 reinforcing effect Effects 0.000 description 17
- 230000008859 change Effects 0.000 description 9
- 238000004088 simulation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000013519 translation Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/001—Means for connecting filter housings to supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/82—Housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S1/00—Sheets, panels, or other members of similar proportions; Constructions comprising assemblies of such members
- F16S1/10—Composite members, e.g. with ribs or flanges attached
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a kind of dust collector box body H-shaped section Column stability enhancing construction and methods, belong to technical field of structural engineering.The present invention respectively welds one piece of strengthening steel slab to the preceding edge of a wing two sides of H-shaped section column in the adjacent ribbed stiffener section for the wallboard for having ribbed stiffener, and the strengthening steel slab other side is welded in wallboard.The present invention clearly proposes the design method of such H-shaped section Column stability enhancing construction simultaneously.It can make column that its stable bearing capacity be greatly improved in original structure basis after implementing the present invention, column design section can be further decreased with this, and stability enhancing construction processing and fabricating is convenient, saves steel, production cost is low.
Description
Technical field
The present invention relates to a kind of dust collector box body H-shaped section Column stability enhancing construction and methods, belong to Structural Engineering
Technical field.
Background technique
Deduster is the main force's environmental protection being widely used in the industries such as thermoelectricity, metallurgy, chemical industry and building materials to eliminate flue dust
Equipment, cabinet (can also claim shell) is most important one process components.When cabinet building enclosure is using flat plate wall of putting more energy into
When plate-H-shaped (or I-shaped) section pillar construction system, one side wing edge of H-shaped section column and steel plate wallboard sequential welding are in succession
It connects.The lateral load that cabinet deadlight is formed by negative pressure and wind load, the lateral load acted on wallboard, which can transmit, to be assigned to
On column, so that column bears moment of flexure；Axial compressive force is undertaken at the top of column, therefore, practical column is a bending component.Column exists
Unstable failure mainly occurs under moment of flexure and axial compressive force collective effect, it is close that cabinet central post destruction position is frequently experienced in column
The local axial compression stress large area at top, and other most of regional stress levels are not high.
Summary of the invention
It is an object of the invention to for the column in wallboard-H-shaped section pillar construction system, providing one kind can be shown
The reinforcing construction and method for enhancing the H-shaped section Column stability are write, is prone to lose to solve existing dust collector box body column
Steady to destroy, the low problem of strength of materials utilization rate can reduce column design section whereby, mitigate dead load, to reduce
Production cost.
For this purpose, the present invention provides a kind of enhancings of dust collector box body H-shaped section Column stability to construct, the deduster case
Body wallboard is the flat plate with ribbed stiffener, each side welds one piece in neighbouring intercostal region of putting more energy into, column web
Strengthening steel slab, one vertical edge of strengthening steel slab and the preceding edge of a wing of column are welded to connect, and another vertical edge and dust collector box body wallboard weld
Connection.The stability enhancing construction can improve stability when H-shaped section column connect receiving cross-brace with wallboard.Ability
Field technique personnel are it should be clear that the H-shaped section column edge of a wing connecting with wallboard is the rear edge of a wing, the H-shaped section column far from wallboard
The edge of a wing is the preceding edge of a wing.
In one embodiment of the invention, Column stability enhancing in the H-shaped section is configured to enhancing deduster
The stability of cabinet.
In one embodiment of the invention, H-shaped section column can also be expressed as I-shaped cross-section column.
In one embodiment of the invention, for edge column, the stability enhancing construction only is arranged in side.
In one embodiment of the invention, the strengthening steel slab thickness is equal to cabinet wallboard wall thickness.
In one embodiment of the invention, after the strengthening steel slab and the vertical attachment weld of wallboard are away from wallboard and column
The distance of edge of a wing attachment weld is 100mm.
In one embodiment of the invention, the strengthening steel slab arranges section along stem height direction are as follows: works as column
When cross-brace spacing is less than three ribbed stiffener sections, strengthening steel slab is only arranged in first, top ribbed stiffener section；Work as transverse direction
Branch tie distance is more than or equal to three and when less than six ribbed stiffener section, and strengthening steel slab is in top the first and second Liang Ge ribbed stiffener area
Between arrange；When cross-brace spacing is more than or equal to six ribbed stiffener sections, strengthening steel slab is totally three, top first, second and third
Ribbed stiffener section arrangement.It will be apparent to those skilled in the art that the cross-brace, that is, cabinet column is suffered perpendicular to wallboard side
To support.
In one embodiment of the invention, the strengthening steel slab upper and lower ends are not connect with wallboard ribbed stiffener, root
According to ribbed stiffener section form, the appropriate strengthening steel slab that cuts is allowed to avoid interfering with ribbed stiffener edge.
The present invention also provides a kind of application dust collector box body H-shaped section Column stability enhancing constructions to improve H-shaped
The method of section Column stability, wherein the strengthening steel slab thickness is equal to cabinet wallboard wall thickness；Strengthening steel slab is vertical with wallboard
Attachment weld away from wallboard with after column at a distance from the attachment weld of the edge of a wing be 100mm；Strengthening steel slab is along stem height direction arrangement area
Between are as follows: when column cross-brace spacing is less than three ribbed stiffener sections, strengthening steel slab is only in first, top ribbed stiffener section
Arrangement；When cross-brace spacing is more than or equal to three and when less than six ribbed stiffener sections, strengthening steel slab is first and second liang of top
A ribbed stiffener section arrangement；When cross-brace spacing be more than or equal to six ribbed stiffener sections when, strengthening steel slab top first,
Two, three totally three ribbed stiffener sections arrangements；Strengthening steel slab upper and lower ends are not connect with wallboard ribbed stiffener, according to ribbed stiffener section
Form, the appropriate strengthening steel slab that cuts are allowed to avoid interfering with ribbed stiffener edge.
The beneficial effects of the present invention are: construction measure is enhanced using above-mentioned dust collector box body H-shaped section Column stability
Afterwards, dust collector box body column can be made to significantly improve its stable bearing capacity in original structure basis.The present invention is especially suitable for
Wallboard is the flat plate situation with ribbed stiffener, it is only necessary to be used to lower section high pressure stress region at the top of the column of unstability is prone to
Stability enhancing construction, this stability enhancing construction processing and fabricating is convenient, and saves steel, no matter lateral load it is larger or
Dust collector box body column bearing capacity can be significantly improved in lesser situation.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is dust collector box body wallboard-pillar construction system finite element model and the office for not using stability enhancing construction
Portion's enlarged drawing.
Fig. 3 is to carry out the enhanced dust collector box body wallboard of stability-pillar construction system finite element mould using the present invention
Type and partial enlarged view.
Fig. 4 is that wallboard bears lateral load schematic diagram.
Fig. 5 is for strengthening steel slab with the vertical attachment weld of wallboard away from column at a distance from edge of a wing attachment weld after wallboard and column
The influence relation curve of stability.
The vertical stress component and horizontal component schematic diagram of its active force when Fig. 6 is connected to preceding flange plate for strengthening steel slab is oblique.
Fig. 7 is the influence relation curve of strengthening steel slab thickness opposition column stability.
1:H tee section column；2: strengthening steel slab；3: wallboard ribbed stiffener；4: steel plate wallboard；5: diaphragm plate.
Specific embodiment
With reference to the accompanying drawing and by specific embodiment and implementation result to further illustrate the technical scheme of the present invention and
Its forming process.It is understood that embodiment described herein is used only for explaining the present invention, rather than to limit of the invention
It is fixed.
Referring to shown in attached drawing 1, attached drawing 1 is dust collector box body of the present invention (shell) H-shaped (I-shaped) section Column stability
Enhance the structural schematic diagram of construction.3 areas of adjacent ribbed stiffener on 1 two sides steel plate wallboard 4 of dust collector box body H-shaped section column
One piece of strengthening steel slab 2 is welded in domain, and 2 side of strengthening steel slab and the preceding edge of a wing of H-shaped section column 1 are welded to connect, the other side and wall
Plate 4 is welded to connect, and strengthening steel slab 2 is arranged symmetrically at left and right sides of 1 web of H-shaped section column, if H-shaped section column 1 is in
Cabinet edge, then only steel plate wall plate 4 adjacent with side is welded to connect.The strengthening steel slab 2 is along 1 short transverse of H-shaped section column
Arrange section are as follows: when cross-brace (i.e. the suffered support perpendicular to 4 direction of wallboard of H-shaped section column 1) spacing adds less than three
When strength rib section, strengthening steel slab 2 is only arranged in first, top ribbed stiffener section；When cross-brace spacing be more than or equal to three and
When less than six ribbed stiffener sections, strengthening steel slab 2 is arranged in the first and second two, top ribbed stiffener section；When cross-brace spacing
When more than or equal to six ribbed stiffener sections, strengthening steel slab 2 at top first, second and third, arrange by totally three ribbed stiffener sections.It is described to add
Gu 2 thickness of steel plate is equal to 4 wall thickness of cabinet wallboard.The strengthening steel slab 2 is cut with the vertical attachment weld of wallboard 4 away from wallboard 4 and H-shaped
The distance of edge of a wing attachment weld is 100mm after face column 1.2 upper and lower ends of strengthening steel slab do not connect with wallboard ribbed stiffener 3
It connects, according to 3 section form of ribbed stiffener, the appropriate strengthening steel slab 2 that cuts is allowed to avoid interfering with 3 edge of ribbed stiffener.
Performance measurement of the present invention
The present invention is to the meter using the forward and backward dust collector box body H-shaped section Column stability of stability enhancing building method
It calculates, compare and analyzes and numerical simulation is carried out by FEM-software ANSYS, it is enhanced limited with stability before stability enhancing
Meta-model is as shown in attached drawing 2 and attached drawing 3.Finite element method (fem) analysis procedure declaration is as follows:
1, definition unit: all structure members are all made of Shell181 unit simulation.
2, definition material: consider that material nonlinearity influences, steel material uses ideal elastoplastic model, with Von-Mises
Criterion judges whether to surrender.Production deduster generally uses Q235 steel, yield strength fy=235MPa, elasticity modulus
E=2.06 × 105MPa, Poisson's ratio ν=0.3.
3, apply restraint condition: cabinet (shell) wallboard top and cabinet top plate of putting more energy into are connect, therefore on panel tops side
Boundary applies the translation constraint of vertical wallboard direction (Z-direction).Wallboard bottom end is connect with ash bucket stiffened panels, therefore in wallboard bottom side edge
Boundary applies the translation constraint in vertical wallboard direction.Cross-brace (perpendicular to the wallboard direction) constraint that column is equally spaced,
It is constrained in column with the translation that cross-brace junction applies vertical wallboard direction.Add three directions in middle standing pillar column bottom application
Translation constraint.Since flue gas is often high temperature in cabinet, for release temperature deformation, two sides column bottom only applies along wallboard height
Direction (Y-direction) and the constraint perpendicular to wallboard direction are spent, (X to) can be with dilatation in wallboard plane to realize structure.
4, be further applied load situation: dust collector box body wallboard is in the process of running by wind load and inside and outside differential pressure (negative pressure)
Generate the lateral load perpendicular to wallboard.When equipment investment after a period of use, it is dust load and later period maintenance load, clear
It manages the vertical loads such as the rapping load of dust stratification and column is transmitted to by top of the box supporting structure, therefore column is born axially at top
Pressure.The above process causes deduster as in the force-bearing situation of different service stages there is notable difference in the time, further, since work
Skill condition is different, caused by the lateral load level born of dust collector box body wallboard be discrepant, it is therefore desirable to verifying is stablized
Property effect of the enhancing construction in different laterally and axially load situation.It is different for simulation dust collector box body different phase stress
Situation, the loading procedure of model are divided into two stages, and the first stage is to apply lateral load, and uniformly distributed area load is acted on wallboard
Pw, correspond to the trial operation stage and be initially powered up the stage, loading conditions are as shown in Fig. 4.Second stage applies perpendicular in column capital
It is destroyed to evenly load to Instability of pillar, corresponding axial bearing capacity is defined as P when column destroysc,cr.DefinitionIt is undertaken for column
The coefficient of stability of xial feed, i.e.,(Pcy=fy·AH, AHFor H profile steel column sectional area, PcyFor column total cross-section
Yield load).In all of the embodiments illustrated, column is calculated under different load situations by changing the size of lateral load
Stability.
Since wallboard is reliably continuously coupled with column, wallboard can share xial feed suffered by a part of column, by big
The statistical analysis of result of finite element is measured, the axial compressive force that general column top cross-section undertakes is that capital applies axial compressive force
80%~85%, remaining is transferred to wallboard by the link node of wallboard and column, therefore applies axial compressive force at the top of column and reach
To 1.2PcyWhen, most of region of column top cross-section reaches surrender.In view of the engineering design method invented, first is that answering
When considering that structure has certain safe clearance, second is that considering that section still with the presence of shear stress, therefore applies at the top of the column axial
Pressure reaches 1.2PcyWhen, being considered as column top, total cross-section is surrendered, and bearing capacity reaches capacity, and is not further added by xial feed.
5, initial imperfection is constructed: since dust collector box body structure is inevitable during transport, installation, assemble welding etc.
Ground can generate initial imperfection.In the case where cabinet column bears laterally and axially load common state, column area larger for compression
First half section (web and the preceding edge of a wing) the bending unstability in domain is most sensitive, its stability bearing capacity is minimum at this time.Therefore in order to
Consider the adverse effect of initial imperfection, while inducing column and unstability occurs, it is initially curved in column high pressure stress regional structure section
Twisting strain, initial deformation amplitude are taken as the 1/1000 of pillar height.Situation lesser for lateral load, the xial feed on column rise
Control action, its general high axial compression stress area is below capital in 0.15l (l is cross-brace spacing) range；When lateral lotus
When carrying larger, below capital within the scope of 0.31l, specific position becomes with the variation of model for the maximum crushing stress position of model
Change.By on column maximum crushing stress generate position centered on, on it, within the scope of lower each 0.04l to structural finite element model structure
Initial bending deformation is made, initial imperfection is formed.Pressuring stress level generally on the altitude range inner column can reach 0.90 σmax
(σ abovemaxFor the maximum axial compression on column), and the external pressure stress decaying of the range is very fast.It is limited for each embodiment
Meta-model calculation shows that, within this range construct initial imperfection be for structural stability it is more unfavorable, can sufficiently examine
Consider the adverse effect of initial imperfection.After introducing initial imperfection in this manner, maximum buckling deformation finally occurs for defect sturcture
Position just in the range of applying initial deformation, that is, show the high axial compression stress region on column and apply initial bending to become
Shape region and defect sturcture finally occur unstability region and are consistent.
6, analytic process: to construction initial imperfection model (described in performance measurement of the present invention and all embodiment moulds
Type introduces initial imperfection, and model and setting stability including being not provided with stability enhancing construction enhance the model of construction), first
Apply lateral load on wallboard, area load is evenly distributed with the transverse direction of 3000pa come simulate lateral load level it is smaller when structure by
Power situation；Be evenly distributed with area load with the transverse direction of 9000pa simulate lateral load it is horizontal larger when structure force-bearing situation.Again vertical
Column top applies axial uniformly distributed load, until destroying, extreme point is the stability bearing capacity of the model column.It is steady to carry out column
Determine also to consider geometrically-nonlinear effects when Analysis of Bearing Capacity, using arc-length methods tracking structure response path.
Following embodiments embody the influence of the change column stability bearing capacity of stability enhancing constructing variable.
Embodiment 1:
Dust collector box body wallboard thickness t is 7mm, and panel width w is 3500mm, and the steel angle stiffening rib distance s are 1170mm, often
Setting one of cross-brace every three ribs spacing of putting more energy into, (for cross-brace spacing as l=3s), column overall height H is 11990mm, column
Section is H200mm × 150mm × 6mm × 9mm (high wide b in h × edge of a wing in sectionf× web thickness tw× edge of a wing thickness tf)。
When lateral load is smaller, the initial bending by constructing column section within the scope of 0-0.08l below capital is deformed；When
When lateral load is larger, initial bending deformation is constructed within the scope of 0.24l-0.32l.It is 3000pa that column, which is calculated, in lateral load
With bearing capacity when 9000pa, the stability bearing capacity before obtaining Column stability enhancing is as shown in table 1.
Embodiment 2:
Using the model parameter in embodiment 1, column simulation takes stability to enhance construction measure, strengthening steel slab and wall
Away from wallboard, the edge of a wing attachment weld distance d after column is 0mm, strengthening steel slab thickness t to the vertical attachment weld of platesFor wallboard thickness
1 times, reinforcing section be first ribbed stiffener section.It is as shown in table 1 to obtain the enhanced stability bearing capacity of Column stability.
Embodiment 3 and embodiment 4:
It is vertical that embodiment 3 and embodiment 4 only change strengthening steel slab and wallboard in stability enhancing construction relative to embodiment 2
Attachment weld edge of a wing attachment weld distance d after column away from wallboard, specific configuration parameter and column stability bearing capacity compare as
Shown in table 1.
Embodiment 5, embodiment 6, embodiment 7 and embodiment 8:
Embodiment 5, embodiment 6, embodiment 7 and embodiment 8 only change relative to embodiment 2 to be added in stability enhancing construction
Gu steel plate thickness ts, specific configuration parameter and column stability bearing capacity are more as shown in table 1.
Embodiment 9:
Embodiment 9 only changes the connection type of strengthening steel slab lower end and ribbed stiffener relative to embodiment 3, by embodiment 3
It is not connected to be changed to the welded connecting of embodiment 9, specific configuration parameter and column stability bearing capacity are more as shown in table 1.Comparison is real
The stability bearing capacity for applying example 3 and embodiment 9, after strengthening steel slab lower end and ribbed stiffener are by being not connected to be changed to welded connecting, column
Stability bearing capacity is constant, comprehensively consider construction convenient and strengthening steel slab lower end and ribbed stiffener be welded to connect after be easy to cause
Welding damage and aggravation stress concentration, therefore strengthening steel slab upper and lower ends are not connect with wallboard ribbed stiffener in the present invention, according to
Ribbed stiffener section form, the appropriate strengthening steel slab that cuts are allowed to avoid interfering with ribbed stiffener edge.
Table 1
Embodiment 10:
Moulded dimension is as follows: t 7mm, w 4200mm, s 1040mm, and cross-brace spacing is l=5s, and column is always high
Degree H is 17060mm, and column section is H294 × 200 × 8 × 12.
When lateral load is smaller, initial bending deformation is constructed within the scope of 0-0.08l below capital；When lateral load compared with
When big, initial bending deformation is constructed within the scope of 0.27l-0.35l below capital.Calculate column lateral load be 3000pa and
Bearing capacity when 9000pa, the stability bearing capacity before obtaining Column stability enhancing are as shown in table 2.
Embodiment 11:
Using the model parameter in embodiment 10, column simulation takes stability enhance construction measure, strengthening steel slab with
Away from wallboard, the edge of a wing attachment weld distance d after column is 0mm, strengthening steel slab thickness t to the vertical attachment weld of wallboardsFor wallboard thickness
1 times of degree, reinforcing section are first and second ribbed stiffener section.It is enhanced steady that Column stability is obtained after construction initial imperfection
It is as shown in table 2 to determine bearing capacity.
Embodiment 12 and embodiment 13:
Embodiment 12 and embodiment 13 only change strengthening steel slab and wallboard in stability enhancing construction relative to embodiment 11
Vertical the attachment weld edge of a wing attachment weld distance d after column, specific configuration parameter and column stability bearing capacity ratio away from wallboard
Relatively as shown in table 2.
Embodiment 14, embodiment 15, embodiment 16 and embodiment 17:
Embodiment 14, embodiment 15, embodiment 16 and embodiment 17 only change stability enhancing structure relative to embodiment 11
Make middle strengthening steel slab thickness ts, specific configuration parameter and column stability bearing capacity are more as shown in table 2.
Table 2
Embodiment 18:
Moulded dimension is as follows: t 7mm, w 4030mm, s 1200mm, and cross-brace spacing is l=6s, and column is always high
Degree H is 20540mm, and column section is H350 × 350 × 10 × 16.
When lateral load is smaller, initial bending deformation is constructed within the scope of 0-0.08l below capital；When lateral load compared with
When big, initial bending deformation is constructed within the scope of 0.12l-0.20l below capital.Calculate column lateral load be 3000pa and
Bearing capacity when 9000pa, the stability bearing capacity before obtaining Column stability enhancing are as shown in table 3.
Embodiment 19:
Using the model parameter in embodiment 18, column simulation takes stability enhance construction measure, strengthening steel slab with
Away from wallboard, the edge of a wing attachment weld distance d after column is 0mm, strengthening steel slab thickness t to the vertical attachment weld of wallboardsFor wallboard thickness
1 times of degree, reinforcing section are first, second and third ribbed stiffener section.It is enhanced that Column stability is obtained after construction initial imperfection
Stability bearing capacity is as shown in table 3.
Embodiment 20 and embodiment 21:
Embodiment 20 and embodiment 21 only change strengthening steel slab and wallboard in stability enhancing construction relative to embodiment 19
Vertical the attachment weld edge of a wing attachment weld distance d after column, specific configuration parameter and column stability bearing capacity ratio away from wallboard
Relatively as shown in table 3.
Embodiment 22, embodiment 23, embodiment 24 and embodiment 25:
Embodiment 22, embodiment 23, embodiment 24 and embodiment 25 only change stability enhancing structure relative to embodiment 19
Make middle strengthening steel slab thickness ts, specific configuration parameter and column stability bearing capacity are more as shown in table 3.
Table 3
By embodiment 2-8,11-17,19-25 take stability enhance construction measure after column stability bearing capacity respectively with
Stability bearing capacity before the Column stability enhancing of embodiment 1,10,18 compares, it can be deduced that column of the invention is stablized
Property enhancing construction measure opposition column stability have great raising.
Investigate comparing embodiment group 2,3,4 and embodiment group 11,12,13 and embodiment group 19,20,21, strengthening steel slab
Influence relationship with the vertical attachment weld of wallboard away from edge of a wing attachment weld distance d column stability bearing capacity after wallboard and column
Respectively as shown in attached drawing 5 (a) -5 (c).Research finds that strengthening steel slab and wallboard the welding position edge of a wing after wallboard and column connect
When welding seam is more and more remoter, stable bearing capacity can be gradually decreased after column is reinforced.Analysis is it is found that the preceding edge of a wing meeting of when Instability of pillar
Obvious torsion occurs, when strengthening steel slab is perpendicular to preceding flange plate part (d=0mm), the active force of strengthening steel slab is perpendicular to preceding
The edge of a wing, such effect of contraction are most direct.As d > 0, as shown in Fig. 6, strengthening steel slab is oblique to be connected to preceding flange plate,
Directed force F only has vertical stress component FvPreceding edge of a wing torsional deflection can be limited, such effect of contraction is weakened；And its horizontal component
FhIt can cause the torque to the preceding edge of a wing and web, aggravate section torsional deflection.Therefore when strengthening steel slab is connected perpendicular to the preceding edge of a wing
When (d=0mm), the deformation of the preceding edge of a wing is restricted most strong, and Column stability is best.Due to as d=0mm, the vertical weld seam of twice
Overlapping, it is easy to cause problems of welded quality, while welding region steel being made to become fragile, aggravation stress is concentrated, this is needed in construction
It to be avoided.In addition, it is contemplated that column stability bearing capacity is equal with bearing capacity when d=0mm situation or omits when d=100mm
Edge down low, thus taken in the present invention strengthening steel slab and the vertical attachment weld of wallboard away from after wallboard and column edge of a wing attachment weld away from
From for 100mm.
Investigate comparing embodiment group 1,5,6,3,7,8 and embodiment group 10,14,15,12,16,17 and embodiment group 18,
22,23,20,24,25, such as attached drawing 7 (a) -7 (c) is shown respectively for the influence relationship of strengthening steel slab thickness column stability bearing capacity,
Intuitively to show, it is numerically identical that the strengthening steel slab thickness in attached drawing uses the relative value used in absolute value, with subordinate list.
It is smaller that calculated result shows that reinforcing plate thickness column stability bearing capacity influences, when strengthening steel slab thickness and same thick wallboard, no
Stability bearing capacity with geometric dimension architecture neutral column all basically reaches maximum value.In order to improve stability reinforcing effect, and protect
The local stability of strengthening steel slab is demonstrate,proved, therefore cabinet wallboard wall thickness is equal to the value of strengthening steel slab thickness in the present invention.
It should be noted that strengthening steel slab is not straight plate due to the presence of initial imperfection, had in the load later period bright
Aobvious local buckling occurs, but after local buckling occurs, column bearing capacity can continue to obviously increase, show can use plus
Gu the Post-Bucking Strength of steel plate.It therefore, there is no need to limit strengthening steel slab width-thickness ratio according to the requirement on the bending component edge of a wing.
In summary: in the stability enhancing building method of column, when strengthening steel slab thickness is equal to cabinet wallboard wall
Thickness reinforces structure when strengthening steel slab and the vertical attachment weld of wallboard are away from being 100mm at a distance from edge of a wing attachment weld after wallboard and column
It is convenient to make processing and fabricating, saves steel, and Column stability reinforcing effect is significant.
Embodiment 26:
Moulded dimension is as follows: t 7mm, w 4200mm, s 1040mm, and cross-brace spacing is l=2s, and column is always high
Degree H is 17060mm, and column section is H294 × 200 × 8 × 12.
When lateral load is smaller, initial bending deformation is constructed within the scope of 0-0.08l below capital；When lateral load compared with
When big, initial bending deformation is constructed within the scope of 0.21l-0.29l below capital.Calculate column lateral load be 3000pa and
Bearing capacity when 9000pa, the stability bearing capacity before obtaining Column stability enhancing are as shown in table 4.
Embodiment 27:
Using the model parameter in embodiment 26, column simulation takes stability to enhance construction measure, and strengthening steel slab is thick
Degree is equal to cabinet wallboard wall thickness, strengthening steel slab and the vertical attachment weld of wallboard away from after wallboard and column edge of a wing attachment weld away from
From for 100mm, reinforcing section is first ribbed stiffener section.The enhanced stabilization of Column stability is obtained after construction initial imperfection
Bearing capacity is as shown in table 4.
Table 4
Comparative example 26 and 27, it is available when cross-brace spacing is two ribbed stiffener sections, only reinforce first
A ribbed stiffener section can make the stability bearing capacity of column reach capacity.Due to the high pressure stress region on column and finally generation
Unstability region is consistent, in first ribbed stiffener section, therefore when cross-brace spacing is two ribbed stiffener sections, it is only necessary to
Reinforce first ribbed stiffener section.
Embodiment 28:
Embodiment 28 only changes strengthening steel slab relative to embodiment 3 (cross-brace spacing is l=3s) and arranges section, by
First ribbed stiffener section becomes first and second ribbed stiffener section, obtains the enhanced stability bearing capacity of Column stability, such as table
Shown in 5.
Table 5
Embodiment 29:
Moulded dimension is as follows: t 7mm, w 3500mm, s 1170mm, and cross-brace spacing is l=3s, and column is always high
Degree H is 11990mm, and column section is H200 × 150 × 6 × 9.
When lateral load is smaller, initial bending deformation is constructed within the scope of 0-0.08l below capital；When lateral load compared with
When big, column high axis compression region is at the top of first ribbed stiffener section bottom and second ribbed stiffener section, that is, is crossed over
Two ribbed stiffener sections.Due to having diaphragm plate limitation column deformation in ribbed stiffener position, it is impossible to be formed in ribbed stiffener position vertical
The maximum twist of column section deforms, and consider initial imperfection has certain randomness, therefore the 0.36l- below capital
Initial bending deformation is constructed within the scope of 0.44l, i.e., in second ribbed stiffener interval structure initial imperfection.Column is calculated in lateral lotus
Bearing capacity when load is 3000pa and 9000pa, the stability bearing capacity before obtaining Column stability enhancing are as shown in table 6.
Embodiment 30:
Using the model parameter in embodiment 29, column simulation takes stability to enhance construction measure strengthening steel slab thickness
Be equal to cabinet wallboard wall thickness, strengthening steel slab and the vertical attachment weld of wallboard away from edge of a wing attachment weld after wallboard and column at a distance from
For 100mm, reinforcing section is first ribbed stiffener section.It is as shown in table 6 to obtain the enhanced stability bearing capacity of Column stability.
Embodiment 31:
Embodiment 31 only changes strengthening steel slab arrangement section relative to embodiment 30, becomes the from first ribbed stiffener section
One, two ribbed stiffener sections obtain the enhanced stability bearing capacity of Column stability, as shown in table 6.
Table 6
High pressure stress region and final instability area when cross-brace spacing is three ribbed stiffener sections, on column
Domain is likely located at the top of first ribbed stiffener section bottom and second ribbed stiffener section, that is, crosses over two ribbed stiffener sections.
Instability of pillar occurs at first ribbed stiffener section bottom in the case of not taking stability to enhance construction measure, and comparison is implemented
Example 3 and 28 in the available biggish situation of lateral load, reinforces the first and second two ribbed stiffener sections and more only reinforces first
The stability bearing capacity of ribbed stiffener section column has 11% promotion.The Instability of pillar in the case of not taking stability to enhance construction measure
When occurring at the top of second ribbed stiffener section, comparative example 29,30 and 31 is reinforced two and is added when lateral load is larger
Bearing capacity when strength rib section improves 35% when more only reinforcing first ribbed stiffener section, and can achieve the bearing capacity limit.
Since the high pressure stress region and unstability region of not taking stability enhancing construction measure situation lower pillar stand do not occur at third
A ribbed stiffener section, therefore, third ribbed stiffener section is without reinforcing.In conclusion relatively conservatively, when cross-brace spacing
When for three ribbed stiffener sections, the first and second two ribbed stiffener sections should be reinforced.
When cross-brace spacing is five ribbed stiffener sections, comparative example 10 and 12 obtains only reinforcing two at this time
Ribbed stiffener section can make the stability bearing capacity of column reach maximum value.When cross-brace spacing is four or five ribbed stiffener sections
When, when the high pressure stress region and unstability region of not taking stability enhancing construction measure situation lower pillar stand typically occur in capital
In following two ribbed stiffener section, therefore, when setting cross-brace spacing as three to five ribbed stiffener sections in the present invention, it is only necessary to
Stability enhancement measures are taken in the first and second two ribbed stiffener interval ranges.
Embodiment 32:
Embodiment 32 only changes strengthening steel slab arrangement section relative to embodiment 20 (l=6s), is added by first, second and third
Strength rib section becomes first and second ribbed stiffener section, obtains the enhanced stability bearing capacity of Column stability, as shown in table 7.
Embodiment 33:
Embodiment 33 only changes strengthening steel slab arrangement section relative to embodiment 20 (l=6s), is added by first, second and third
Strength rib section becomes first, second, third and fourth ribbed stiffener section, the enhanced stability bearing capacity of Column stability is obtained, such as table 7
It is shown.
Table 7
Embodiment 34:
Moulded dimension is as follows: t 7mm, w 4200mm, s 1040mm, and cross-brace spacing is l=6s, and column is always high
Degree H is 17060mm, and column section is H294 × 200 × 8 × 12.
When lateral load is smaller, initial bending deformation is constructed within the scope of 0-0.08l below capital；Work as lateral load
When larger, initial bending deformation is constructed within the scope of 0.27l-0.35l below capital.It is 3000pa that column, which is calculated, in lateral load
With bearing capacity when 9000pa, the stability bearing capacity before obtaining Column stability enhancing is as shown in table 8.
Embodiment 35:
Using the model parameter in embodiment 34, column simulation takes stability to enhance construction measure, and strengthening steel slab is thick
Degree is equal to cabinet wallboard wall thickness, strengthening steel slab and the vertical attachment weld of wallboard away from after wallboard and column edge of a wing attachment weld away from
From for 100mm, reinforcing section is first and second ribbed stiffener section.Obtain the enhanced stability bearing capacity of Column stability such as table 8
It is shown.
Embodiment 36:
Embodiment 36 only changes strengthening steel slab arrangement section relative to embodiment 35, is become by first and second ribbed stiffener section
For first, second and third ribbed stiffener section, the enhanced stability bearing capacity of Column stability is obtained, as shown in table 8.
Table 8
Comparative example group 32,20 and 33, when cross-brace spacing is six ribbed stiffener sections, lateral load is biggish
In the case of, reinforce first, second and third totally three ribbed stiffener sections held compared with the stabilization for reinforcing the first and second two ribbed stiffener section columns
It carries power and improves 6.5%, when reinforcing first, second, third and fourth totally four ribbed stiffener sections, the relatively reinforcing the of column stability bearing capacity
One, two, three totally three ribbed stiffener sections it is almost the same, column hold stablize carry power do not promoted；Comparative example group 35 and 36, can be with
It obtains when cross-brace spacing is six ribbed stiffener sections, in the biggish situation of lateral load, reinforces first, second and third totally three
A ribbed stiffener section improves 50% compared with the stability bearing capacity for reinforcing the first and second two ribbed stiffener section columns, and reinforce first,
Two, column stability bearing capacity can achieve limiting value when three ribbed stiffener sections.Therefore it is six in cross-brace spacing to put more energy into
When rib section, it is necessary to be reinforced to the column in first, second and third totally three ribbed stiffener interval ranges.
In summary: when column cross-brace spacing is less than three ribbed stiffener sections, strengthening steel slab is only at top first
A ribbed stiffener section arrangement；When cross-brace spacing is more than or equal to three and when less than six ribbed stiffener sections, strengthening steel slab exists
The first and second two, top ribbed stiffener section arrangement；When cross-brace spacing is more than or equal to six ribbed stiffener sections, strengthening steel slab
At top first, second and third, totally three ribbed stiffener sections are arranged.
Although the present invention has been described by way of example and in terms of the preferred embodiments, it is not intended to limit the invention, any to be familiar with this skill
The people of art can do various change and modification, therefore protection model of the invention without departing from the spirit and scope of the present invention
Enclosing subject to the definition of the claims.
Claims (9)
1. a kind of dust collector box body H-shaped section Column stability enhancing construction, which is characterized in that the dust collector box body wallboard is
Flat plate with ribbed stiffener each side welds one piece of strengthening steel slab in neighbouring intercostal region of putting more energy into, column web,
One vertical edge of strengthening steel slab and the preceding edge of a wing of column are welded to connect, and another vertical edge and dust collector box body wallboard are welded to connect；It is described
Strengthening steel slab arranges section along stem height direction are as follows: when column cross-brace spacing is less than three ribbed stiffener sections, reinforces
Steel plate is only arranged in first, top ribbed stiffener section；When cross-brace spacing is more than or equal to three and less than six ribbed stiffener areas
Between when, strengthening steel slab is arranged in the first and second two, top ribbed stiffener section；When cross-brace spacing is more than or equal to six ribbed stiffeners
When section, strengthening steel slab at top first, second and third, arrange by totally three ribbed stiffener sections；The preceding edge of a wing is the H far from wallboard
The tee section column edge of a wing.
2. a kind of dust collector box body H-shaped section Column stability enhancing construction according to claim 1, which is characterized in that
For edge column, the strengthening steel slab only is arranged in column web side.
3. a kind of dust collector box body H-shaped section Column stability enhancing construction according to claim 1 or 2, feature exist
In the strengthening steel slab thickness is equal to cabinet wallboard wall thickness.
4. a kind of dust collector box body H-shaped section Column stability enhancing construction according to claim 3, which is characterized in that
The strengthening steel slab and the vertical attachment weld of wallboard, away from wallboard be 100mm at a distance from the attachment weld of the edge of a wing after column.
5. a kind of any dust collector box body H-shaped section Column stability enhances construction according to claim 1~2, special
Sign is that the strengthening steel slab upper and lower ends are not connect with wallboard ribbed stiffener, and according to ribbed stiffener section form, steel is reinforced in cutting
Plate is allowed to avoid interfering with ribbed stiffener edge.
6. a kind of dust collector box body H-shaped section Column stability enhancing construction according to claim 3, which is characterized in that
The strengthening steel slab upper and lower ends are not connect with wallboard ribbed stiffener, according to ribbed stiffener section form, are cut strengthening steel slab and are allowed to
It avoids interfering with ribbed stiffener edge.
7. a kind of dust collector box body H-shaped section Column stability enhancing construction according to claim 4, which is characterized in that
The strengthening steel slab upper and lower ends are not connect with wallboard ribbed stiffener, according to ribbed stiffener section form, are cut strengthening steel slab and are allowed to
It avoids interfering with ribbed stiffener edge.
8. a kind of method using any dust collector box body H-shaped section Column stability enhancing construction of claim 1~7,
It is characterized in that, the strengthening steel slab arranges section along stem height direction are as follows: when column cross-brace spacing adds less than three
When strength rib section, strengthening steel slab is only arranged in first, top ribbed stiffener section；When cross-brace spacing be more than or equal to three and
When less than six ribbed stiffener sections, strengthening steel slab is arranged in the first and second two, top ribbed stiffener section；When cross-brace spacing is big
When being equal to six ribbed stiffener sections, strengthening steel slab at top first, second and third, arrange by totally three ribbed stiffener sections；The reinforcing
Steel plate thickness is equal to cabinet wallboard wall thickness；The strengthening steel slab is connect away from wallboard with the edge of a wing after column with the vertical attachment weld of wallboard
The distance of weld seam is 100mm；The strengthening steel slab upper and lower ends are not connect with wallboard ribbed stiffener, according to ribbed stiffener section shape
Formula, cutting strengthening steel slab are allowed to avoid interfering with ribbed stiffener edge.
9. method according to claim 8, which is characterized in that the dust collector box body H-shaped section Column stability enhancing
It is configured to the stability for the H-shaped section column that enhancing is connect with the wallboard with ribbed stiffener, wherein H-shaped section column is by lateral branch
Support constraint, wallboard bear the lateral load perpendicular to wallboard plane, bear xial feed at the top of column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052921.6A CN106799094B (en) | 2017-01-22 | 2017-01-22 | A kind of dust collector box body H-shaped section Column stability enhancing construction and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052921.6A CN106799094B (en) | 2017-01-22 | 2017-01-22 | A kind of dust collector box body H-shaped section Column stability enhancing construction and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106799094A CN106799094A (en) | 2017-06-06 |
| CN106799094B true CN106799094B (en) | 2019-03-01 |
Family
ID=58987125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710052921.6A Active CN106799094B (en) | 2017-01-22 | 2017-01-22 | A kind of dust collector box body H-shaped section Column stability enhancing construction and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106799094B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108073773B (en) * | 2017-12-29 | 2020-11-06 | 江南大学 | Method for determining axial pressure stable bearing capacity of double-limb combined section column of dust remover box body |
| CN108374513A (en) * | 2018-03-26 | 2018-08-07 | 北京筑福建筑事务有限责任公司 | A kind of additional elevator platform uses the tiling steel plate structure and its construction method of H-type rib |
| CN109241629B (en) * | 2018-09-10 | 2020-08-04 | 江南大学 | Method for determining axial pressure stable bearing capacity of upright column of dust remover box body |
| CN109711074B (en) * | 2018-12-29 | 2020-10-09 | 江南大学 | Design method of middle upright post in dust remover box body wall plate-rectangular tube upright post structure |
| CN110633495A (en) * | 2019-08-08 | 2019-12-31 | 张家港市锦明机械有限公司 | Design method of high-temperature electric dust remover structure |
| CN110457836B (en) * | 2019-08-15 | 2021-03-30 | 江南大学 | Design method of middle upright post of dust remover box body wallboard-upright post structure system |
| CN110975439B (en) * | 2019-12-30 | 2021-08-20 | 江南大学 | Method for improving stability of upright post of wall plate-upright post structure system of dust remover box body |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2613436C2 (en) * | 1976-03-30 | 1978-03-16 | Fabricius, Michael, Dr., 8700 Wuerzburg | Device for stiffening reusable! Steel girders of any size |
| JP2012255298A (en) * | 2011-06-09 | 2012-12-27 | Sumitomo Metal Ind Ltd | H-shaped steel member |
| CN205296581U (en) * | 2015-10-23 | 2016-06-08 | 江苏三工钢结构有限公司 | Vertical stiffening rib formula of improved generation worker shape steel dysmorphism post |
| CN205153311U (en) * | 2015-11-27 | 2016-04-13 | 甘肃中泰钢结构有限公司 | I -shaped steel structure column |
| CN206000025U (en) * | 2016-08-29 | 2017-03-08 | 江南大学 | A kind of dust collector box body |
-
2017
- 2017-01-22 CN CN201710052921.6A patent/CN106799094B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106799094A (en) | 2017-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106799094B (en) | A kind of dust collector box body H-shaped section Column stability enhancing construction and method | |
| CN106621621B (en) | A kind of construction and method enhancing H-shaped section Column stability | |
| Miyachi et al. | Progressive collapse analysis of steel truss bridges and evaluation of ductility | |
| CN108073773A (en) | A kind of method of the double limb combined section columns Axial Compression Stability bearing capacities of definite dust collector box body | |
| Wu et al. | Seismic behavior of composite interior joints of prefabricated H-shaped steel reinforced concrete column-steel beam | |
| CN109241629B (en) | Method for determining axial pressure stable bearing capacity of upright column of dust remover box body | |
| CN202039477U (en) | External restrained combined steel plate wall with connecting surfaces at two edges | |
| CN205329909U (en) | Ripple clamp core steel plate wall cracks in both sides | |
| CN203947610U (en) | Truss support between a kind of factory building columns with anti-buckling energy-consumption | |
| CN108978930A (en) | A kind of construction design method can be used for blast wall/antiknock plate profiled sheet | |
| CN107419916A (en) | Internal moment reinforcing and correcting device for beam structure | |
| CN110457836B (en) | Design method of middle upright post of dust remover box body wallboard-upright post structure system | |
| CN206000025U (en) | A kind of dust collector box body | |
| CN113704906B (en) | Section design method of Q460 high-strength steel upright post in box body structure | |
| CN206000024U (en) | A kind of dust collector box body | |
| CN203716404U (en) | Stiffened circular multiple-pore steel beam | |
| CN109972733A (en) | A kind of novel expansion wing T shape energy consumption connection steel structure frame | |
| CN104878949A (en) | Shearing-resistance reinforcing structure at end parts of steel girders in node of beam column | |
| CN106677380A (en) | Rectangular steel pipe row shear wall structure with vertical cracks | |
| CN111027157B (en) | Design method of flexible support system of double-limb combined cross-section bending column of dust remover box body | |
| CN210597654U (en) | Assembled steel-bamboo combined semi-rigid energy dissipation node frame | |
| CN204112584U (en) | A kind of expansion wing formula corrugated web steel-frame beam | |
| CN106379824A (en) | Supporting structure of tower crane | |
| CN206521853U (en) | It is a kind of to arrange shear wall structure with vertical gap rectangular steel pipe | |
| CN110975439B (en) | Method for improving stability of upright post of wall plate-upright post structure system of dust remover box body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |