CN102877636A - Built-in truss used during installation of C-shaped plates and hoisting method for same - Google Patents
Built-in truss used during installation of C-shaped plates and hoisting method for same Download PDFInfo
- Publication number
- CN102877636A CN102877636A CN2012104052398A CN201210405239A CN102877636A CN 102877636 A CN102877636 A CN 102877636A CN 2012104052398 A CN2012104052398 A CN 2012104052398A CN 201210405239 A CN201210405239 A CN 201210405239A CN 102877636 A CN102877636 A CN 102877636A
- Authority
- CN
- China
- Prior art keywords
- working platform
- shape plate
- layer
- truss
- intermediate truss
- 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.)
- Granted
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a built-in truss used during installation of C-shaped plates and a hoisting method for the same. The built-in truss comprises a middle truss perpendicular to the ground, and a plurality of frame-shaped truss units are sequentially connected to form the middle truss; inclined struts are symmetrically arranged on two side surfaces of the middle truss; and a plurality of layers of working platforms parallel to the ground are arranged on the middle truss, each layer of working platforms is symmetrically arranged on two sides of the middle truss, one end of each working platform is fixed to the middle truss, and the working platforms are disposed above the inclined struts. The hoisting method includes that a traveling crane perpendicularly hoists the C-shaped plates; openings of the C-shaped plates face the middle truss; the traveling crane translates the C-shaped plates; and the C-shaped plates perpendicularly descend after being in contact with the corresponding working platforms, so that the C-shaped plates are fixedly installed. The built-in truss and the hoisting method have the advantages that influence of weights of the C-shaped plates is avoided, the C-shaped plates are stressed by lateral force for preventing the C-shaped plates from tipping, and requirements of the C-shaped plates on the rigidity and the strength of the truss are lowered; the difficult problem of high-altitude construction is solved; and installation cost is saved.
Description
Technical field
The present invention relates to the frock field, the hanging method of the girder-embedded and C shape plate when especially relating to the installation of C shape plate.
Background technology
The C shape plate of large-scale drop press is the vitals of forging press.The installation of C shape plate is the key point that whole frame is installed, because C shape plate is to belong to thin-wall part, elongated and the rod member that lays particular stress at two, thus C shape plate to stand up the impact that its distortion (referring to the elastic deformation of C shape plate and the direction of distortion) of control and control C shape plate produced in the process and rock in standing up the center of gravity process to setting all are difficult points of C shape plate installation by edge-on.The distortion of controlling C shape plate has just guaranteed the precision (gap of the binding face of C shape plate and other workpiece) that frame is installed afterwards, the impact that control C shape plate produced in standing up the center of gravity process and the controllable operating that rocks the installation that then realizes.Long 36.19 meters, wide 4.65 meters, thick 0.35 meter of the C shape plate of the large-scale drop press of 800MN, 250 tons of weight, quantity are 20 (totally 5000 tons), C shape plate profile belongs to slender rod piece, and is the thin-wall part that lay particular stress at two.How providing the location in its installation process, and prevent from tumbling, is the primary study content that press is installed.
The large press of this kind structure is First at home, does not have ripe supporting way, and general the employing around press arranges truss principal, is called for short external truss, and this has brought two problems:
The truss use amount is huge, through our primary Calculation, reach and both satisfy the stable requirement of strength of C shape plate, satisfy again the pinpoint rigidity requirement of C shape plate, need about 2200 tons of truss, according to 30,000 yuan/tons of calculating, only stablizing one of truss just needs about 6,600 ten thousand yuan of frock expense; Because truss is arranged on around the press, complicated heavy components hoisting passage must be set, not only truss is set up the technical requirements height, also makes the heavy components hoisting more complicated.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, the hanging method of the girder-embedded and C shape plate when providing a kind of C shape plate to install, this girder-embedded and hanging method has been avoided supporting C-shaped plate own wt dexterously, force way transfers the lateral force that prevents that it from tumbling to, has greatly reduced rigidity, the requirement of strength of C shape plate installation to truss; Efficiently solve the high-altitude construction difficult problem; Saved installation cost, reduced the distortion of C shape plate in hoisting process, rocking of generation is little, and the clamping level of the C shape plate of same position is high.
Purpose of the present invention is achieved through the following technical solutions: girder-embedded when C shape plate is installed, comprise the intermediate truss perpendicular to ground, and described intermediate truss is connected and composed successively by several frame type unit framves, and frame type unit frame is connected and composed by some steel pipes; Two sides at intermediate truss are symmetrically arranged with diagonal brace, and diagonal brace one end and intermediate truss are fixed, and the other end and ground are fixed; Be provided with some layers working platform parallel to the ground at described intermediate truss, every layer of working platform is symmetricly set on the both sides of intermediate truss, and working platform one end and intermediate truss are fixed, and the other end is arranged on the intermediate truss outside, and working platform is arranged on the top of diagonal brace.
Further, the bottom of described working platform is provided with some groups of support bars, and the two ends of support bar are connected with intermediate truss with corresponding working platform respectively.
Bottom at every one deck working platform, support bar is by bolt or other modes, be fixed on the intermediate truss, compact on overall structure, utilize simultaneously the firmness of truss to guarantee the stable of working platform, when installing, working platform can owing to the stressed excessive situation that bending or other distortion occur of part, not guarantee the safety of using.
Further, described working platform comprises first floor working platform, second layer working platform, the 3rd layer of working platform and the 4th layer of working platform, wherein all the height with intermediate truss is identical for the height of the height of first floor working platform and second layer working platform, and first floor working platform and second layer working platform are the right-angled intersection setting, and second layer working platform and diagonal brace are arranged on the same side of intermediate truss.
Further, described the 3rd layer of working platform is arranged between first floor working platform and the diagonal brace, and the 3rd layer of working platform and first floor working platform are arranged on the same side of intermediate truss, and sidewall corresponding in the sidewall of the 3rd layer of working platform and the first floor working platform is arranged in the same plane.
Further, described the 4th layer of working platform is arranged between diagonal brace and the 3rd layer of working platform, and the 4th layer of working platform and diagonal brace be arranged on the same side, the support bar of the 4th layer of working platform below and corresponding diagonal brace connection.Because the area of working platform is large, and the partial pressure of C shape plate acts on the working platform, operating personnel also can stand in and carry out work on the working platform, distortion appears in working platform easily, especially away from the zone of intermediate truss, so adopt support bar to support away from the position of intermediate truss, guarantee the stability of working platform.
Further, the upper surface of described diagonal brace is provided with cat ladder, cat ladder towards with diagonal brace towards identical, and the two ends of cat ladder are connected with intermediate truss with ground respectively, cat ladder is arranged on the below of the 4th layer of working platform.
Cat ladder is mounted on the upper surface of diagonal brace, and about the operating personnel, because the volume of equipment is large, operating personnel are many, creep up and down at intermediate truss if adopt, danger coefficient is high, and it is large to consume one's strength, and efficient is slow, by cat ladder, the gradient is little, the more safe ready of walking.
The hanging method of C shape plate comprises the steps;
(a) utilize first floor working platform and second layer working platform to be divided into four parts that separate respectively with girder-embedded, by driving a vehicle C shape plate vertical lifting, until C shape plate is vertical with the level ground, there is certain distance on bottom and the ground of C shape plate, and the opening of C shape plate is towards intermediate truss, utilize driving with the translation of C shape plate, so that the sidewall of the sidewall of C shape plate and first floor working platform is in the same level face, again control driving, C shape plate level is moved, until the end face of C shape plate contacts with second layer working platform, sidewall simultaneously with corresponding first floor working platform, the contact of the 3rd layer of working platform, the opening of C shape plate is inboard with after the 4th layer of working platform contacts, and C shape plate is vertically descended, snap in the mounted groove in girder-embedded bottom, realize installing and fixing C shape plate;
(b) repeating step (a), with other three the girder-embedded upper C shape plates of part lifting, the C shape plate of four parts consists of cross shape all towards intermediate truss around first floor working platform and second layer working platform;
(c) repeating step (a) and step (b), all lift successively some blocks of C shape plates in four girder-embedded parts, C shape plate in each part is all fitted successively, until the C of all parts shape plate all lift finish after, by bolt the C shape plate in each part is fixed as overall structure again.
During lifting C shape plate, because length structure and the thickness of C shape plate in order to prevent its distortion, all are to adopt the sleeping level ground that is placed on, so usually adopt the secondary method for turning when lifting.
Further, utilize step (a) to lift first good whole C shape plate a part in four parts in the time of also C shape plate can being lifted, the end face of each C shape plate all contacts with second layer working platform, sidewall simultaneously with corresponding first floor working platform, the 3rd layer of working platform contact, the opening of C shape plate is inboard with after the 4th layer of working platform contacts, C shape plate is vertically descended, snap in the mounted groove in girder-embedded bottom, realization installs and fixes C shape plate, by bolt the C shape plate in this part is all penetrated again and be fixed as integral body, remaining three parts are all lifted and fix C shape plate according to above-mentioned action successively, the C shape plate of each part is to adopt lifting to fix the C shape plate that lifts again other parts behind the C shape plate of this part, finishes the lifting work to all C shape plates.
In sum, the invention has the beneficial effects as follows:
(1) this girder-embedded supporting C-shaped plate own wt of having avoided dexterously, force way transfers the lateral force that prevents that it from tumbling to, has greatly reduced the rigidity of C shape plate installation to truss, requirement of strength;
(2) this girder-embedded can built-in cat ladder, operating platform efficiently solves the high-altitude construction difficult problem;
(3) by the scheme contrast, more external platform is saved about 2000 tons of frock weight, calculates escapable cost 60,000,000 by 30,000/ton;
(4) at hoisting process, reduced the frequency that C shape plate rocks, be more prone to the location, because the lifting center of the center of gravity of C shape plate and C shape plate hoisting tool on same vertical line, therefore just reaches static balance and is fit to install when C shape plate winches to the upright position.
Description of drawings
Fig. 1 is girder-embedded schematic diagram of the present invention;
Fig. 2 is directions X displacement-curve of load figure;
Fig. 3 is Y-direction displacement-curve of load figure.
Mark and corresponding component title in the accompanying drawing: 1-diagonal brace; 2-cat ladder; 3-the four layer of working platform; 4-the three layer of working platform; 5-second layer working platform; 6-first floor working platform; 7-intermediate truss.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment 1:
As shown in Figure 1, girder-embedded when C shape plate is installed comprises the intermediate truss 7 perpendicular to ground, and described intermediate truss 7 is connected and composed successively by several frame type unit framves, and frame type unit frame is connected and composed by some steel pipes; Two sides at intermediate truss 7 are symmetrically arranged with diagonal brace 1, and diagonal brace 1 one ends and intermediate truss 7 are fixing, and the other end and ground are fixed; Be provided with some layers working platform parallel to the ground at described intermediate truss 7, every layer of working platform is symmetricly set on the both sides of intermediate truss 7, and working platform one end and intermediate truss 7 are fixing, and the other end is arranged on intermediate truss 7 outsides, and working platform is arranged on the top of diagonal brace 1.Describe for convenient, diagonal brace 1 is divided into left and right diagonal brace, considering of truss need to bear the effect of C shape plate unbalance loading, and truss integral higher (height overall is 28.9m), in order to improve resistance to overturning, has designed left and right inclined support structure.The bottom of intermediate truss 7 is to be connected with press ship template, and left and right diagonal brace bottom is connected with ground.So all degree of freedom constraints of eight nodes of four nodes in bottom of intermediate truss 7 and left and right diagonal brace bottom are lived.Adopt " girder-embedded ", need about 200 tons of sub-truss, according to 30,000 yuan/tons of calculating, need approximately 6,000,000 yuan of frock expenses, decrease the frock expense, and do not need to arrange hoisting passage, simplified the hoisting of heavy components.
The bottom of described working platform is provided with some groups of support bars, and connection is connected with corresponding working platform respectively in the two ends of support bar with intermediate truss.Support bar is that working platform is provided support, and prevents in loading process the working platform dip-parallel.
Described working platform comprises first floor working platform 6, second layer working platform 5, the 3rd layer of working platform 4 and the 4th layer of working platform 3, wherein all the height with intermediate truss 7 is identical for the height of the height of first floor working platform 6 and second layer working platform 5, and first floor working platform 6 is the right-angled intersection setting with second layer working platform 5, and second layer working platform 5 and diagonal brace 1 are arranged on the same side of intermediate truss 7.
Described the 3rd layer of working platform 4 is arranged between first floor working platform 6 and the diagonal brace 1, and the 3rd layer of working platform 4 and first floor working platform 6 are arranged on the same side of intermediate truss 7, and sidewall corresponding in the sidewall of the 3rd layer of working platform 4 and the first floor working platform 6 is arranged in the same plane.
Described the 4th layer of working platform 3 is arranged between diagonal brace 1 and the 3rd layer of working platform 4, and the 4th layer of working platform 3 is arranged on the same side with diagonal brace 1, the support bar of the 4th layer of working platform 3 below and 1 connection of corresponding diagonal brace.
Consider that the load that truss is subject under the most unfavorable processing condition is: suffered bearing capacity, dead load on the lateral force of the C shape plate 400 millimeters generations in deviation of gravity center support edge, shock loading (consideration dynamic load factor), each working platform.
C shape plate lateral force is calculated as follows:
Static load:
F
s=GL
1/L
2
Dynamic loading:
F
d=K
dF
s
In the formula: F
sLateral force for the generation of C shape plate; G is the gravity of C shape plate; L
1The arm of force for gravity G; L
2Be F
sThe arm of force; F
dShock loading for the generation of C shape plate; K
dBe dynamic load factor, get K
d=5.Calculate F
s=27.6kN, F
d=138kN.
Each working platform mainly bears workman, erecting tools, jack deadweight and jack operational forces.According to the effect of each platform, load distribution is as follows: first floor working platform 6, second layer working platform 5, the 3rd layer of load that working platform 4 bears 50kN separately, the 4th layer of load that platform bears 400kN.
Structural limitations according to frock truss real work situation and ground, if also asymmetric about designed trussed construction, so stressed stress state and the deformation with the stressed generation in right side in truss left side is also different, again according to different load combinations forms, the design condition of frock truss is divided into following four kinds analyzes:
(1) the truss left side is subjected to lateral force under the dead weight, considers each working platform bearing capacity, dead load;
(2) the truss right side is subjected to lateral force under the dead weight, considers each working platform bearing capacity, dead load;
(3) the lower truss of dynamic loading (consideration dynamic load factor) effect left side is subjected to lateral force, considers each working platform bearing capacity, dead load;
(4) the lower truss right side of dynamic loading (consideration dynamic load factor) effect is subjected to lateral force, considers each working platform bearing capacity, dead load.
The FEM (finite element) model of setting up loaded according to above four kinds of operating modes respectively find the solution, then various operating modes are carried out respectively strength and distortion analyses.
(1) first operating mode maximum stress is 117.442MPa, is positioned at the 4th layer of working platform in right side and intermediate truss main chord junction.Maximum displacement is 8.303mm, is positioned on the side of the 4th layer of working platform in right side;
(2) second operating mode maximum stresses are 113.489MPa, are positioned at the 4th layer of working platform in left side and intermediate truss main chord junction.Maximum displacement is 7.967mm, is positioned on the side of the 4th layer of working platform in left side;
The position that (3) the 3rd operating mode maximum stresses produce is identical with the first operating mode, and stress value is 135.519MPa.Owing to considered that shock loading, lateral force are increased to 5 times of the first operating mode, make to produce moderate finite deformation herein, change so produce the position of maximum displacement, appear at the side of first floor working platform, displacement is 16.697mm;
The position that (4) the 4th operating mode maximum stresses produce is identical with the second operating mode, and stress value is 132.205MPa.Maximum displacement is 16.078mm, and the 3rd operating mode is similar, is positioned on the respective side of first floor working platform lateral forces.
The frock truss material is selected Q345A, and its allowable stress is calculated as follows:
[
]=
In the formula:
Be the yield limit of material,
=345MPa;
Be safety factor, get
=1.7.Then allowable stress [
]=203MPa.
Frock truss maximum stress is
=135.519MPa＜[
]=203MPa is so its intensity meets the demands.
The Allowable deflection of truss is calculated as follows:
[y]=L/350=26.3mm
In the formula: L is the distance that the first floor working platform is arrived in right diagonal brace and intermediate truss junction, L=9200mm.
The maximum displacement of frock truss is y=16.697mm＜[y]=26.3mm, so its rigidity also meets the demands.
The frock truss is subjected to the effect of multi-load, belongs to the Bi--directional Compression--Flexure member.Adopt nonlinear method to carry out stability analysis, its analysis principle is: increase gradually load, until reach some critical load numerical value, a very little load increment just obtains a larger distortion, and this moment, structure became unstable.Can obtain at last modal displacement with the curve (displacement-curve of load) of load change, thereby draw Buckling Critical Load.
In order to reach critical load, the load that applies is: Y-direction (vertical direction) is 100 times of front load that static analysis adds, and directions X (horizontal direction) is 100 times of front load that static analysis adds.
Directions X: as shown in Figure 2, when load hour, the substantially linear variation of displacement and load is when load continue to become large, when arriving 34000N, curve has a sudden change, distortion sharply increases, after this, as long as load has a fractional increments, distortion all can increase a lot, and trussed construction has also just lost stability.So 34000N is exactly Buckling Critical Load.And this is the load of a node, and directions X has applied altogether 20 nodal forcess, and then the critical full payload of the flexing of directions X is:
The most unfavorable processing condition load of static analysis is: single node 1380N, altogether
=27600N.
Check:
In the formula:
Be directions X working stability safety factor,
Be buckling safety factor allowable.
So stability is enough, and larger surplus is arranged.
As shown in Figure 2, negative sign only represents direction among the figure, and abscissa represents imposed load (N), and ordinate represents displacement (mm).
Y-direction: in like manner, can find out on the curve from Fig. 3 that truss begins unstability when load is 106000N, namely the node Buckling Critical Load of Y-direction is:
=106000N.And the load that applies on this node under the static analysis the most unfavorable processing condition is
=1250N.
Check:
In the formula:
Be Y-direction working stability safety factor.So stability is enough, and larger surplus is arranged.
The upper surface of described diagonal brace 1 is provided with cat ladder 2, cat ladder 2 towards with diagonal brace 1 towards identical, and the two ends of cat ladder 2 are connected with intermediate truss with ground respectively and are connected, cat ladder 2 is arranged on the below of the 4th layer of working platform 3.Cat ladder 2 is for operating personnel's passage up and down, saves muscle power, raises labour efficiency.
Girder-embedded is important auxiliary equipment in the large-scale drop press installation process of 800MN, and the reasonability of trussed construction and security reliability are installed the conclusive effect that plays smoothly to press ground.By setting up finite element analysis model, the most unfavorable processing condition of frock truss intensity, rigidity and stability analysis have been carried out.At last the results is checked assessment, verified reasonability and the security reliability of frock truss structural design.
The hanging method of C shape plate comprises the steps;
(a) utilize first floor working platform 6 and second layer working platform 5 to be divided into four parts that separate respectively with girder-embedded, by driving a vehicle C shape plate vertical lifting, until C shape plate is vertical with the level ground, there is certain distance on bottom and the ground of C shape plate, and the opening of C shape plate is towards intermediate truss, utilize driving with the translation of C shape plate, so that the sidewall of the sidewall of C shape plate and first floor working platform 6 is in the same level face, again control driving, C shape plate level is moved, until the end face of C shape plate contacts with second layer working platform 5, sidewall simultaneously with corresponding first floor working platform 6,4 contacts of the 3rd layer of working platform, the opening of C shape plate is inboard with after the 4th layer of working platform 3 contacts, and C shape plate is vertically descended, snap in the mounted groove in girder-embedded bottom, realize installing and fixing C shape plate;
(b) repeating step (a), with other three the girder-embedded upper C shape plates of part lifting, the C shape plate of four parts consists of cross shape all towards intermediate truss around first floor working platform 6 and second layer working platform 5;
(c) repeating step (a) and step (b), all lift successively some blocks of C shape plates in four girder-embedded parts, C shape plate in each part is all fitted successively, until the C of all parts shape plate all lift finish after, by bolt the C shape plate in each part is fixed as overall structure again.
When the every part in girder-embedded was hung oneself dress C shape plate, the C shape plate in every part fitted tightly, and strains with bolt.
Girder-embedded support component when lifting as C shape plate, the structure of the setting of each working platform and C shape plate be to adaptation, all as the support to the face of C shape plate, according to above-mentioned result of calculation, can satisfy the hoisting process of C shape plate fully.
Adopt this mode to lift, the four sides is samsara lifting C shape plate successively, so that each girder-embedded side is stressed all even, the amplitude of variation is little, and rocking of truss is little, and the amplitude of distortion is little, lifts more accurate.
Secondary upset hoisting technology has been adopted in the lifting of C shape plate, and secondary upset hoisting technology refers to that C shape plate workpiece is chosen and finishes a kind of rotary hoisting method that workpiece is erect whole hoisting process after changing another fixed hinge fulcrum behind the fixed hinge fulcrum lifting certain angle again when edge-on.Take secondary upset hoisting technology to slow down to a great extent the impact that produces when suspension centre is crossed the workpiece position of centre of gravity in hoisting process, by fixed hinge workpiece the rocking in the lifting process of having propped up point control, strengthened the safety of whole hoisting process.
At first: adopt the vertical method of hanging that the translation of C shape plate is lifted in the secondary upset hole, secondary upset hole refers to the gap between left floor and the right floor, C shape plate the first fixed hinge fulcrum is put in pin-and-hole corresponding to C shape plate secondary upset frock, this pin-and-hole refers to left low groove and right low groove, carries out the preparation that C shape plate stands up.
Take the vertical purpose that can realize simply and easily translation of hanging, take the vertical features of shape that can utilize C shape plate self of hanging automatically to adjust vertical workload of saving a heavy industry in the C shape plate hoisting process with the deadweight of C shape plate, adopt simultaneously the vertical method of hanging to control direction with the distortion of C shape plate towards favourable direction, realize that the distortion in the C shape plate hoisting process is controlled.
Secondly: utilize the C shape plate secondary upset frock of design to carry out the stand up process of C shape plate from the horizontal level to the upright position.It is as follows that it stands up main process: stand up fulcrum take the first fixed hinge fulcrum as C shape plate, utilizing 300 tons of travelling crane truck operations and main hook to hoist stands up C shape plate to 78 ° of positions from horizontal level, the fulcrum that this moment, C shape plate stood up is by the shock-free second fixed hinge fulcrum that is transitioned into of the first fixed hinge fulcrum, finishes smoothly the conversion of the fulcrum that C shape plate stands up., utilize 300 tons of travelling crane truck operations and main hook to hoist 78 ° of positions of C shape plate are stood up to the upright position as the fulcrum that C shape plate stands up with the second fixed hinge fulcrum.
At last: utilize 300 tons of drivings vertically to hoist and be moved horizontally to the installation site after certain altitude shifts out C shape plate secondary upset frock with the bearing pin of the second fixed hinge fulcrum, finished the whole upset hoisting process of C shape plate.
Left floor and right floor can prevent the distortion of C shape plate generation double swerve, the second fixed hinge fulcrum and the first fixed hinge fulcrum consist of by the locating hole that a bearing pin is plugged on the C shape plate, therefore in the frock process of overturning for the first time, the bearing pin of the first fixed hinge fulcrum fits together with the groove bottom of the low groove in a left side and the groove bottom of right low groove all the time.In the process of C shape plate of overturning for the second time, the bearing pin of the second fixed hinge fulcrum fits together with the groove bottom of left high groove and the groove bottom of right high groove all the time, and this moment, the bearing pin of the first fixed hinge fulcrum shifted out from the low groove in a left side and right low groove.Final step adopts 300 tons of travelling crane trucks to carry out vertical lifting, is moved horizontally to the installation site after the bearing pin of the second fixed hinge fulcrum is shifted out C shape plate secondary upset frock.
Embodiment 2:
Utilize step (a) to lift first good whole C shape plate a part in four parts during the lifting of C shape plate, the end face of each C shape plate all contacts with second layer working platform 5, sidewall simultaneously with corresponding first floor working platform 6, the 3rd layer of working platform 4 contact, the opening of C shape plate is inboard with after the 4th layer of working platform 3 contacts, C shape plate is vertically descended, snap in the mounted groove in girder-embedded bottom, realization installs and fixes C shape plate, by bolt the C shape plate in this part is all penetrated again and be fixed as integral body, remaining three parts are all lifted and fix C shape plate according to above-mentioned action successively, the C shape plate of each part is to adopt lifting to fix the C shape plate that lifts again other parts behind the C shape plate of this part, finishes the lifting work to all C shape plates.
Because C shape plate is a kind of thin slice elongate in shape, easily distortion in installation process, by arrange girder-embedded after, can effectively prevent its distortion, support by the upper part face of the working platform on the truss to C shape plate, all be to adopt five blocks of C shape plates to fit in every part generally, the C of every part shape plate all lift complete after, utilize C shape plate bayonet socket up and down, bolt is put into bayonet socket, and nut is realized drawing, five blocks of C shape plates are fixed as overall structure, then lifting fixing according to above-mentioned action three other parts, it is fixing to adopt this mode to lift, and the stroke of driving can be controlled easily, and operating personnel can realize whole control, when the lifting of the C shape plate that carries out other, rocking of the C shape intralamellar part of every part is little.
The above; it only is preferred embodiment of the present invention; be not that the present invention is done any pro forma restriction, any simple modification, equivalent variations that every foundation technology of the present invention, method are done above embodiment in fact all fall within protection scope of the present invention.
Claims (7)
- Girder-embedded when 1.C the shape plate is installed, it is characterized in that: comprise the intermediate truss (7) perpendicular to ground, described intermediate truss (7) is connected and composed successively by several frame type unit framves, and frame type unit frame is connected and composed by some steel pipes; Two sides at intermediate truss (7) are symmetrically arranged with diagonal brace (1), and diagonal brace (1) one end and intermediate truss (7) are fixing, and the other end and ground are fixed; Be provided with some layers working platform parallel to the ground at described intermediate truss (7), every layer of working platform is symmetricly set on the both sides of intermediate truss (7), and working platform one end and intermediate truss (7) are fixing, the other end is arranged on intermediate truss (7) outside, and working platform is arranged on the top of diagonal brace (1).
- 2. girder-embedded when C shape plate according to claim 1 is installed, it is characterized in that: the bottom of described working platform is provided with some groups of support bars, and the two ends of support bar are connected 7 with corresponding working platform with intermediate truss respectively) connect.
- 3. girder-embedded when C shape plate according to claim 2 is installed, it is characterized in that: described working platform comprises first floor working platform (6), second layer working platform (5), the 3rd layer of working platform (4) and the 4th layer of working platform (3), wherein all the height with intermediate truss (7) is identical for the height of the height of first floor working platform (6) and second layer working platform (5), and first floor working platform (6) is the right-angled intersection setting with second layer working platform (5), and second layer working platform (5) and diagonal brace (1) are arranged on the same side of intermediate truss (7).
- 4. girder-embedded when C shape plate according to claim 3 is installed, it is characterized in that: described the 3rd layer of working platform (4) is arranged between first floor working platform (6) and the diagonal brace (1), and the 3rd layer of working platform (4) and first floor working platform (6) are arranged on the same side of intermediate truss (7), and the sidewall of the 3rd layer of working platform (4) is arranged in the same plane with the middle corresponding sidewall of first floor working platform (6).
- 5. girder-embedded when C shape plate according to claim 4 is installed, it is characterized in that: described the 4th layer of working platform (3) is arranged between diagonal brace (1) and the 3rd layer of working platform (4), and the 4th layer of working platform (3) is arranged on the same side with diagonal brace (1), and the support bar of the 4th layer of working platform (3) below connects with corresponding diagonal brace (1).
- 6. girder-embedded when C shape plate according to claim 5 is installed, it is characterized in that: the upper surface of described diagonal brace (1) is provided with cat ladder (2), cat ladder (2) towards with diagonal brace (1) towards identical, and the two ends of cat ladder (2) are connected 7 with ground with intermediate truss respectively) be connected, cat ladder (2) is arranged on the below of the 4th layer of working platform (3).
- 7.C the hanging method of shape plate is characterized in that: comprise the steps;(a) utilize first floor working platform (6) and second layer working platform (5) to be divided into four parts that separate respectively with girder-embedded, by driving a vehicle C shape plate vertical lifting, until C shape plate is vertical with the level ground, there is certain distance on bottom and the ground of C shape plate, and the opening of C shape plate is towards intermediate truss, utilize driving with the translation of C shape plate, so that the sidewall of the sidewall of C shape plate and first floor working platform (6) is in the same level face, again control driving, C shape plate level is moved, until the end face of C shape plate contacts with second layer working platform (5), sidewall simultaneously with corresponding first floor working platform (6), the 3rd layer of working platform (4) contact, the opening of C shape plate is inboard with after the 4th layer of working platform (3) contacts, C shape plate is vertically descended, snap in the mounted groove in girder-embedded bottom, realize installing and fixing C shape plate;(b) repeating step (a), with other three the girder-embedded upper C shape plates of part lifting, the C shape plate of four parts consists of cross shape all towards intermediate truss around first floor working platform (6) and second layer working platform (5);(c) repeating step (a) and step (b), all lift successively some blocks of C shape plates in four girder-embedded parts, C shape plate in each part is all fitted successively, until the C of all parts shape plate all lift finish after, by bolt the C shape plate in each part is fixed as overall structure again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405239.8A CN102877636B (en) | 2012-10-23 | 2012-10-23 | Built-in truss used during installation of C-shaped plates and hoisting method for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405239.8A CN102877636B (en) | 2012-10-23 | 2012-10-23 | Built-in truss used during installation of C-shaped plates and hoisting method for same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102877636A true CN102877636A (en) | 2013-01-16 |
| CN102877636B CN102877636B (en) | 2015-04-01 |
Family
ID=47479134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210405239.8A Expired - Fee Related CN102877636B (en) | 2012-10-23 | 2012-10-23 | Built-in truss used during installation of C-shaped plates and hoisting method for same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102877636B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106506A1 (en) * | 1982-09-11 | 1984-04-25 | Access Engineering Limited | Vertically movable working platform |
| JP2002220921A (en) * | 2001-01-26 | 2002-08-09 | Taisei Corp | Transfer scaffold for constructing roof |
| CN200978412Y (en) * | 2006-12-13 | 2007-11-21 | 中国水利水电科学研究院 | Sinking-proof easy leveling and dismounting large-scale at-sea wind-electricity basal bearing platform |
| CN101629456A (en) * | 2009-08-18 | 2010-01-20 | 北京城建精工钢结构工程有限公司 | Three-dimensional steel truss assembling support frame shaped like a Chinese character qie and construction method for assembling steel truss |
| CN202359504U (en) * | 2011-12-12 | 2012-08-01 | 海波重型工程科技股份有限公司 | Moveable detachable supporting device for assembling outward inclined segment of web of steel structure bridge |
| CN202804054U (en) * | 2012-10-23 | 2013-03-20 | 中国第二重型机械集团（德阳）万信工程设备有限责任公司 | Built-in truss based on providing support during process of installing C-shaped plate |
-
2012
- 2012-10-23 CN CN201210405239.8A patent/CN102877636B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106506A1 (en) * | 1982-09-11 | 1984-04-25 | Access Engineering Limited | Vertically movable working platform |
| JP2002220921A (en) * | 2001-01-26 | 2002-08-09 | Taisei Corp | Transfer scaffold for constructing roof |
| CN200978412Y (en) * | 2006-12-13 | 2007-11-21 | 中国水利水电科学研究院 | Sinking-proof easy leveling and dismounting large-scale at-sea wind-electricity basal bearing platform |
| CN101629456A (en) * | 2009-08-18 | 2010-01-20 | 北京城建精工钢结构工程有限公司 | Three-dimensional steel truss assembling support frame shaped like a Chinese character qie and construction method for assembling steel truss |
| CN202359504U (en) * | 2011-12-12 | 2012-08-01 | 海波重型工程科技股份有限公司 | Moveable detachable supporting device for assembling outward inclined segment of web of steel structure bridge |
| CN202804054U (en) * | 2012-10-23 | 2013-03-20 | 中国第二重型机械集团（德阳）万信工程设备有限责任公司 | Built-in truss based on providing support during process of installing C-shaped plate |
Non-Patent Citations (2)
| Title |
|---|
| 崔宝祥: "基于有限元法的800MN模锻机工装桁架结构分析", 《起重运输机械》 * |
| 陈俊: "大型模锻液压机C形机架安装方案设计", 《重型机械》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102877636B (en) | 2015-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103243654B (en) | Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method | |
| CN103332611A (en) | Fabrication method of arm support of crane | |
| CN107700360A (en) | A kind of assembling method of truss bridge section | |
| CN203684096U (en) | High-altitude large-curvature box-groove type cast-in-place concrete cross beam assembly type construction supporting frame | |
| CN101624164B (en) | Hoisting method of machine set generator stator and special mechanism thereof | |
| CN101503908A (en) | Construction method for spacing suspension cable structural template support platform | |
| CN108842954A (en) | A kind of huge different section Honeycomb Beam structural system construction method of installation of aerofoil profile roofing | |
| CN215052151U (en) | Temporary supporting device for bridge construction | |
| CN215366868U (en) | Prepressing system for hanging basket of cantilever beam | |
| CN201110804Y (en) | Multifunctional experimental bench | |
| CN209820790U (en) | Device for crane load test | |
| CN103743581B (en) | Internal-climbing tower crane test platform device and test method | |
| CN204405442U (en) | A kind of reinforced concrete prefabricated board testing device for bearing capacity | |
| CN102877636B (en) | Built-in truss used during installation of C-shaped plates and hoisting method for same | |
| CN102877657A (en) | Large-span H-shaped plane composite structure beam string upper-air cable replacement construction method | |
| CN207047703U (en) | A kind of beam piece prestressed stretch-draw jack easy device in place | |
| CN213239481U (en) | Precast beam static load test device | |
| CN212082851U (en) | Vertical static load test structure of bridge floor crane | |
| CN202804054U (en) | Built-in truss based on providing support during process of installing C-shaped plate | |
| CN203795318U (en) | Integral hoisting system for rebar cage for large members | |
| CN103072004B (en) | Installation method of electric hoist hanger | |
| CN103015323B (en) | Beam body hoisting device | |
| CN206902564U (en) | A kind of double width unit-frame based on without reinforcement cantilever bent cap bridge pier | |
| CN201024038Y (en) | Suspension girder for two trolleys synchronous hoisting | |
| CN110273551B (en) | Deflection correction device and correction method for upper and lower stopbeams during connection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |