CN104373048B - There is connecting elements and the installation method thereof of cross angle steel - Google Patents
There is connecting elements and the installation method thereof of cross angle steel Download PDFInfo
- Publication number
- CN104373048B CN104373048B CN201410613032.9A CN201410613032A CN104373048B CN 104373048 B CN104373048 B CN 104373048B CN 201410613032 A CN201410613032 A CN 201410613032A CN 104373048 B CN104373048 B CN 104373048B
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- connecting plate
- installation foot
- bolt hole
- installation
- angle steel
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- 238000009434 installation Methods 0.000 title claims abstract description 93
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 61
- 239000010959 steel Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000003466 welding Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- 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
- F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
- F16S3/04—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles designed for being joined to similar members in various relative positions
-
- 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
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
-
- 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
- F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
- F16S3/06—Assemblies of elongated members
Abstract
The invention discloses a kind of connecting elements with cross angle steel and installation method thereof, described connecting elements includes connecting plate, at least provided with an installation foot on described connecting plate, described installation foot is formed cross angle steel by four equal leg angle back-to-back connections, the two ends of each equal leg angle all offer the first bolt hole, described connecting plate is provided with the second bolt hole at installation foot, and described connecting plate terminal bolt with described installation foot at the second bolt hole is connected.The present invention by arrange connecting plate and on connecting plate at least provided with a cross angle steel being made up of the back-to-back connection of four equal leg angles as installation foot, the other end of described installation foot is bolted diagonal brace web or cantilever diaphragm at the first bolt hole, described connecting plate can be directly welded on crossbeam or pillar, the number and location of installation foot can be adjusted flexibly according to the number and location of rod member to be connected, safe and reliable, easy for installation, welding job amount and steel using amount can be greatly reduced.
Description
Technical field
The present invention relates to a kind of connecting elements and installation method thereof, particularly relate to a kind of connection structure with cross angle steel
Part and installation method thereof.
Background technology
Derrick is the important component part of oil-well rig, acts primarily as required various rig instruments in suspension drilling process,
Equipment, bears various load in drilling well work, coordinates drilling well to get into the effect of target zone.Need during derrick design and installation
The plane each difform rod member (such as diagonal brace, crossbeam or pillar) is formed or the connection knot of solid
Structure entity forms node.For steel structure derrick, wherein diagonal brace be connected with crossbeam, the connection of crossbeam and pillar and
The connection design of node of diagonal brace and pillar accounts for more than 80 the percent of design of node, for being primarily subjected to axial force
Diagonal brace and crossbeam, end connect node be designed to hinged can meet design require.With constantly sending out of solder technology
Exhibition and the continuous of high strength exploitation are popularized, and use the mixing of welding connection node and high strength exploitation node
Connect node, i.e. bolt-weld joint node is widely used in the end connection design of node of steel construction ocean derrick.
Owing to connecting rod height is generally unequal, when height is more or less the same, need to add pad, member section
Diversity result in the need for manufacturing the different pad of various thickness, installation difficulty is very big；When height difference is bigger,
Then need to carry out local variable cross-section process to connecting rod, considerably increase node steel using amount and welding job amount, system
Cause high.
Content of the invention
The technical problem to be solved is to provide a kind of connecting elements with cross angle steel and installation side thereof
Method, safe and reliable, welding job amount and steel using amount can be greatly reduced, easy for installation, the reduction of erection time, reduce system
Cause this.
The present invention solves that above-mentioned technical problem employed technical scheme comprise that a kind of company with cross angle steel of offer
Connection member, including connecting plate, at least provided with an installation foot on described connecting plate, described installation foot is equilateral by four
Angle steel is back-to-back connects the cross angle steel of composition, and the two ends of each equal leg angle all offer the first bolt hole, described
Connecting plate is provided with the second bolt hole at installation foot, described connecting plate at the second bolt hole and described installation foot one
Terminal bolt is connected.
The above-mentioned connecting elements with cross angle steel, wherein, described connecting plate is class rectangular connecting panels.
The above-mentioned connecting elements with cross angle steel, wherein, the number of described installation foot is four, described four
Individual installation foot is distributed at four diagonal angles of class rectangular connecting panels.
The above-mentioned connecting elements with cross angle steel, wherein, on described connecting plate the second bolt hole quantity with
And pitch of holes is equal with the quantity of first bolt hole of installation foot one end and pitch of holes.
The above-mentioned connecting elements with cross angle steel, wherein, described connecting plate is welded on crossbeam or pillar,
The other end of described installation foot web bolt with diagonal brace at the first bolt hole is connected.
The above-mentioned connecting elements with cross angle steel, wherein, the second bolt at installation foot for the described connecting plate
The number in hole is multiple, and the diagonal brace direction that the plurality of second bolt hole is connected along this installation foot is uniform at equal intervals
Distribution.
The present invention solves that above-mentioned technical problem also provides the installation side of a kind of connecting elements with cross angle steel
Method, comprises the steps: a) to select corresponding installation foot number and connecting plate shape according to the number of diagonal brace to be connected；
B) select H profile steel as crossbeam, and fluting, slot size and connecting plate size phase in the middle of the web of H profile steel
Join；C) described connecting plate is put into and be welded and fixed after fluting in the middle of web；D) by described connecting plate at the second bolt
At hole, the terminal bolt with described installation foot is connected, by the other end of described installation foot at the first bolt hole and diagonal brace
Web by bolt be connected.
The installation method of the above-mentioned connecting elements with cross angle steel, wherein, described installation foot number is multiple,
The centre of form of the attachment weld on described connecting plate is close to the position of intersecting point of the plurality of installation foot.
The present invention solves the installation of the connecting elements that above-mentioned technical problem also provides another kind to have cross angle steel
Method, comprises the steps: a) to select corresponding installation foot number according to the number of diagonal brace to be connected, and according to three
Ten degree of stress diffusion angle determine suitable connecting plate out-to-out；B) by solid to described connecting plate and pillar or beam welding
Fixed；C) by described connecting plate, at the second bolt hole, the terminal bolt with described installation foot is connected, by described installation foot
The other end be connected with the web of diagonal brace or the web bolt of crossbeam at the first bolt hole.
The installation method of the above-mentioned connecting elements with cross angle steel, wherein, described pillar is H profile steel, institute
Stating H profile steel and including two blocks of flange plates be arrangeding in parallel, the centre of described flange plate is connected by web, described connection
It is middle and parallel with described flange plate that plate is welded on described web, or described connecting plate is welded on described flange plate
And align with described web.
The present invention contrasts prior art a following beneficial effect: the connection with cross angle steel that the present invention provides
Component and installation method thereof, by arranging connecting plate, and on connecting plate at least provided with one by four equal leg angles
The back-to-back cross angle steel connecting composition passes through bolt as installation foot, one end of installation foot at the second bolt hole
Being fixed on connecting plate, the other end is bolted the web of diagonal brace or the web of crossbeam at the first bolt hole,
Described connecting plate can be directly welded on crossbeam or pillar, and the number and location of installation foot can be according to bar to be connected
The number and location of part are adjusted flexibly, safe and reliable, can greatly reduce welding job amount and steel using amount, peace
Dress is convenient, the reduction of erection time, reduces manufacturing cost.
Brief description
Fig. 1 is the connecting elements structural representation with cross angle steel of the present invention；
Fig. 2 is the structural representation of connecting plate in Fig. 1；
Fig. 3 is the structural representation of equal leg angle in Fig. 1；
Fig. 4 is the structural representation of the connection node that the connecting plate of the present invention, diagonal brace and crossbeam are constituted；
Fig. 5 is for along Fig. 4 longitudinal centre line generalized section；
Fig. 6 is Fig. 4 middle transverse beam structure schematic diagram；
Fig. 7 is inclined support structure schematic diagram in Fig. 4；
Fig. 8 is the connecting plate of the present invention, diagonal brace, crossbeam and a kind of structural representation being connected node that pillar is constituted；
Fig. 9 is the decomposition texture schematic diagram of an installation foot on connecting plate in Fig. 8；
Figure 10 is the connecting plate of the present invention, diagonal brace, crossbeam and the another kind of structural representation being connected node that pillar is constituted
Figure；
Figure 11 is the decomposition texture schematic diagram of Figure 10.
In figure:
1 connecting plate 2 installation foot 3 first bolt hole
4 second bolt hole 5 crossbeam 6 diagonal braces
7 pillar 8 flange plate 9 webs
10 slotted eyes
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the connecting elements structural representation with cross angle steel of the present invention；Fig. 2 is connecting plate in Fig. 1
Structural representation；Fig. 3 is the structural representation of equal leg angle in Fig. 1.
Referring to Fig. 1, Fig. 2 and Fig. 3, the connecting elements with cross angle steel that the present invention provides includes connecting plate
1, at least provided with an installation foot 2 on described connecting plate 1, described installation foot 2 is by the back-to-back company of four equal leg angles
Connecing the cross angle steel of composition, the two ends of each equal leg angle all offer the first bolt hole 3, and described connecting plate 1 is in peace
Being provided with the second bolt hole 4 at dress pin, described connecting plate 1 is at the second bolt hole 4s and one end spiral shell of described installation foot 2
Bolt is connected.
The present invention provide the connecting elements with cross angle steel, wherein, the number and location of installation foot 2 according to
The number and location of rod member to be connected determine, and determine suitable connecting plate 1 according to 30 degree of stress diffusion angle of consideration
Out-to-out.Described connecting plate 1 is welded on crossbeam or pillar, and the other end of described installation foot 2 is at this end
At one bolt hole 3, the web bolt with diagonal brace is connected.Second bolt hole 4 at installation foot 2s for the described connecting plate 1
Number can be multiple, the plurality of second bolt hole 4 is along the diagonal brace direction that this installation foot is connected at equal intervals
It is uniformly distributed.Fig. 1 offers four at equal intervals with the junction of connecting plate 1 on each equal leg angle in installation foot 2
First bolt hole of distribution, the every one side of connecting plate 1 needs to be connected with two equal leg angles, therefore correspondingly, connects
Plate 1 is offered two at each installation foot 2 and be ranked second bolt hole 4, and the number that often ranked second bolt hole 4 is four.
Fig. 4 is the structural representation of the connection node that the connecting plate of the present invention, diagonal brace and crossbeam are constituted；Fig. 5 is edge
Fig. 4 longitudinal centre line generalized section.
Refer to Fig. 4 and Fig. 5, below as a example by the connection node that diagonal brace and crossbeam are constituted, the invention provides one
There is the installation method of the connecting elements of cross angle steel, comprise the steps:
A) corresponding installation foot number and connecting plate shape are selected according to the number of diagonal brace to be connected；The present embodiment connects
Fishplate bar 1 selectes class rectangular connecting panels, is respectively provided with four installation foot 2 companies of going at four diagonal angles of class rectangular connecting panels
Connect four diagonal braces 6；
B) select H profile steel as crossbeam 5, and fluting in the middle of the web 9 of H profile steel；H profile steel includes flange plate 8
With formation slotted eye 10 in the middle of web 9, web 9, slotted eye 10 size and connecting plate size match, as shown in Figure 6；
C) described connecting plate 1 is put into and be welded and fixed after fluting in the middle of web；If installation foot number is multiple, institute
The centre of form stating the attachment weld on connecting plate is preferably close to the position of intersecting point of the plurality of installation foot；
D) by described connecting plate 1, at the second bolt hole, the terminal bolt with each installation foot 2 is connected, by described peace
The other end of dress pin web bolt with diagonal brace 6 at the first bolt hole is connected；Diagonal brace 6 is H profile steel, its web
On be correspondingly provided with bolt hole and be bolted and be connected after the first bolt hole 3 alignment on installation foot, such as Fig. 7
Shown in.
In the present embodiment, four diagonal braces 6 are crossed as X-type, and the web of four diagonal braces 6 has all offered bolt hole by height
Strength bolts is connected with the other end of cross angle steel.From the cross section of angle iron connecting piece it can be seen that four equilateral
Angle steel is placed back to back the cross angle steel of formation composition, and the first bolt hole 3 has all been offered on the both sides of single angle cleat,
The web of four diagonal braces becomes 90 degree to intersect placement with connecting plate 1.Above-mentioned connection is not different by member section height
Limit, connect simple.It from force analysis, is positioned at same cornerwise two diagonal brace stress and is all pulling force or pressure
Power, four diagonal braces make a concerted effort to be zero in point of intersection vertical force, and four diagonal braces are used for setting in the horizontal resultant size of point of intersection
Meter crossbeam 6 and the weld seam size of connecting plate 1, owing to being that crossbeam 5 fluting is welded to connect with connecting plate 1 herein, have
Four road weld seams, therefore less leg height can meet force request.
Fig. 8 is the connecting plate of the present invention, diagonal brace, crossbeam and a kind of structural representation being connected node that pillar is constituted；
Fig. 9 is the decomposition texture schematic diagram of an installation foot on connecting plate in Fig. 8；
Continuing with seeing Fig. 8 and Fig. 9, below as a example by the connection node that diagonal brace, crossbeam and pillar are constituted, the present invention
Provide the installation method that another kind has the connecting elements of cross angle steel, comprise the steps:
A) select corresponding installation foot number according to the number of diagonal brace to be connected, and consider that 30 degree of stress diffusion angle are true
Fixed suitable connecting plate out-to-out；
B) right-angle side of described connecting plate and the web of pillar 7 are welded and fixed；C) by described connecting plate 1
It is connected with a terminal bolt of described installation foot 2 at two bolts hole, by the other end of described installation foot 2 at this end first
It is connected with the web of diagonal brace 6 or the web bolt of crossbeam 5 at bolt hole.The present embodiment selects two installation feet, its
In an installation foot connecting cross beam 5, another installation foot connect diagonal brace 6.
For pillar 7, typically selecting H profile steel, described H profile steel includes two blocks of flange plates be arrangeding in parallel 8, described
The centre of flange plate 8 is connected by web 9, described connecting plate be welded in the middle of described web 9 and with the described edge of a wing
Plate 8 is parallel, as shown in Figure 8.
Certainly, it is sometimes desirable to the flange plate that the pillar position of connection may just to pillar, now, only need to be by described company
Fishplate bar is welded on described flange plate 8 and substantially aligned with described web 9, it is not necessary to increase extra stiffener,
The overall stress balance of connecting joint point can be ensured equally well, as shown in Figure 10 and Figure 11.
Therefore, cross Bolted angle connection node is the hinged joint being primarily subjected to axle power, it is adaptable to when node two
When the plate piece (or shape steel web) of end becomes 90 degree to intersect, use four equal leg angles having bolt hole
The plate of intersection is got up by the back-to-back composition cross section connector that connects by high strength exploitation.Make herein
Connecting bolt be high-strength bolt, by friction-type connection consider, sliding occurs as collapse state with rubbing surface,
According to suffered by structure, axle power size determines the required diameter of bolt and number, and angle cleat sectional dimension.Cross
Type Bolted angle connection is not by the depth of section Different Effects of connector, easy for installation.Axle power passes through cross Bolted angle connection
Part is directly delivered to connected piece both sides, and internal force transmission is simple and direct, safe and reliable.The conventional diagonal brace of ocean derrick and horizontal stroke
The general height of beam section is between 250mm to 400mm, and suffered axle power is between 400kN to 3000kN, conventional high
Strength bolts diameter has M24, M30, M36, can cross angle steel according to needed for the supporting selection of axle power size connect during design
The diameter of fitting cross section and connecting bolt and quantity.Particularly advantage of the invention is as follows: the 1st, internal force transmission is simple and direct, peace
Complete reliable；2nd, axle strong with pillar or weak axle are connected, or are connected with cantilever diaphragm, all only need to weld one piece of company
Fishplate bar, reduces welding job amount；3rd, not affected by connected piece depth of section is different, node is simple, economizes on
Steel amount, thus reduce manufacturing cost；4th, according to members shaft power size and depth of section, the cross angle steel of supporting selection
Connector cross section and the diameter of bolt and quantity, it is easy to parametrization, reduction of erection time；5th, pad is not needed, simultaneously bolt
Hole is typically bigger 2mm than the diameter of bolt, makes to be provided with the surplus that positive and negative 4mm can be regulated, easy for installation.
Although the present invention discloses as above with preferred embodiment, so it is not limited to the present invention, any this area
Technical staff, without departing from the spirit and scope of the present invention, when a little modification and perfect can be made, therefore this
Bright protection domain is when with being as the criterion that claims are defined.
Claims (7)
1. having an installation method for the connecting elements of cross angle steel, described connecting elements includes connecting plate,
At least provided with an installation foot on described connecting plate, described installation foot is formed ten by four equal leg angle back-to-back connections
Font angle steel, the two ends of each equal leg angle all offer the first bolt hole, and described connecting plate is provided with at installation foot
Second bolt hole, described connecting plate terminal bolt with described installation foot at the second bolt hole is connected, and its feature exists
In described installation method comprises the steps:
A) corresponding installation foot number and connecting plate shape are selected according to the number of diagonal brace to be connected；
B) select H profile steel as crossbeam, and fluting in the middle of the web of H profile steel, slot size be connected board foot
Very little match；
C) described connecting plate is put into and be welded and fixed after fluting in the middle of web；
D) by described connecting plate, at the second bolt hole, the terminal bolt with described installation foot is connected, by described installation
The other end of pin web with diagonal brace at the first bolt hole is connected by bolt.
2. there is the installation method of the connecting elements of cross angle steel as claimed in claim 1, it is characterised in that
Described connecting plate is class rectangular connecting panels.
3. there is the installation method of the connecting elements of cross angle steel as claimed in claim 2, it is characterised in that
The number of described installation foot is four, and described four installation feet are distributed at four diagonal angles of class rectangular connecting panels.
4. there is the installation method of the connecting elements of cross angle steel as claimed in claim 2, it is characterised in that
The quantity of the quantity of the second bolt hole and pitch of holes and first bolt hole of installation foot one end and hole on described connecting plate
Spacing is equal.
5. the installation method of the connecting elements with cross angle steel as described in any one of Claims 1 to 4, its
Being characterised by, described connecting plate is welded on crossbeam or pillar, the other end of described installation foot the first bolt hole with
The web bolt of diagonal brace is connected.
6. there is the installation method of the connecting elements of cross angle steel as claimed in claim 5, it is characterised in that
The number of the second bolt hole at installation foot for the described connecting plate is multiple, and the plurality of second bolt hole is along this peace
The diagonal brace direction that dress pin is connected is uniformly distributed at equal intervals.
7. there is the installation method of the connecting elements of cross angle steel as claimed in claim 1, it is characterised in that
Described installation foot number is multiple, and the centre of form of the attachment weld on described connecting plate is close to the friendship of the plurality of installation foot
Point position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613032.9A CN104373048B (en) | 2014-11-04 | 2014-11-04 | There is connecting elements and the installation method thereof of cross angle steel |
| CN201610741495.2A CN106151862B (en) | 2014-11-04 | 2014-11-04 | The installation method of connecting elements with cross angle steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613032.9A CN104373048B (en) | 2014-11-04 | 2014-11-04 | There is connecting elements and the installation method thereof of cross angle steel |
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| CN201610741495.2A Division CN106151862B (en) | 2014-11-04 | 2014-11-04 | The installation method of connecting elements with cross angle steel |
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| Publication Number | Publication Date |
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| CN104373048A CN104373048A (en) | 2015-02-25 |
| CN104373048B true CN104373048B (en) | 2016-11-09 |
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| CN201610741495.2A Active CN106151862B (en) | 2014-11-04 | 2014-11-04 | The installation method of connecting elements with cross angle steel |
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| CN106939961A (en) * | 2017-04-12 | 2017-07-11 | 浙江海默精工科技有限公司 | A kind of safe fast-assembled steel channel connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0835388A (en) * | 1994-07-25 | 1996-02-06 | Maeda Corp | Drilling device and drilling method |
| CN2752354Y (en) * | 2004-09-24 | 2006-01-18 | 中原石油勘探局勘察设计研究院 | Juncture component of steel structure beam column |
| CN101638914B (en) * | 2009-08-26 | 2012-01-04 | 北京中通合信通信工程设计院有限公司 | Node component of steel structure and assembling method thereof |
| CN201474085U (en) * | 2009-08-26 | 2010-05-19 | 北京中通合信通信工程设计院有限公司 | Node component of steel structure |
| CN101949211B (en) * | 2010-10-29 | 2012-01-04 | 中建三局建设工程股份有限公司 | Low-position few-fulcrum modularized integral jacking steel platform formwork system |
| CN201850795U (en) * | 2010-11-16 | 2011-06-01 | 中国电力工程顾问集团东北电力设计院 | Hinge center support frame steel structure |
| CN103669594B (en) * | 2013-12-19 | 2016-01-20 | 北京工业大学 | Steel Framed Structure with Special-Shaped Columns node is easily repaired after a kind of shake |
| CN204252840U (en) * | 2014-11-04 | 2015-04-08 | 国民油井华高石油设备（上海）有限公司 | There is the connecting elements of cross angle steel |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106151862A (en) | 2016-11-23 |
| CN106151862B (en) | 2019-03-05 |
| CN104373048A (en) | 2015-02-25 |
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