CN85105129A - The sliding form apparatus that construction concrete structure etc. uses along the steel column lifting - Google Patents
The sliding form apparatus that construction concrete structure etc. uses along the steel column lifting Download PDFInfo
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- CN85105129A CN85105129A CN85105129.4A CN85105129A CN85105129A CN 85105129 A CN85105129 A CN 85105129A CN 85105129 A CN85105129 A CN 85105129A CN 85105129 A CN85105129 A CN 85105129A
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Abstract
This device comprises and promotes machinery or the hydraulic elevator that the supporting scaffold is used, and closed-in construction moves radially the star boom device of usefulness, around building with the framework device of the loop configuration of building tangent, with the workbench that is connected with the supporting scaffold.Closed-in construction have one under hoist (2) and with its fixing crossbeam (11), the crossbeam that on hoist, extends (14), length-adjustable support bar (18) extends to exterior frame column (8) outside it from top rail (14) between crossbeam (11,14).Connect crossbeam (11,14) by support bar (17) in inside casing post (7) outside, support bar (17) is bordering on parallel with inside casing post (7) at least.
Description
The present invention relates to a kind of device, this installs according to sliding mode system, and particularly the control device of the construction sliding formwork that concrete wall are used is guided in framework device and adjustment, promotes sliding formwork along steel column, is used to build concrete structure etc.The stalk of these buildings or the section of crooked wall are variable, for example reinforced concrete chimney and bridge pier etc.
The slide construction technology is suitable for building the building of taper section.The slide construction technology includes the hoist that promotes the supporting scaffold with the method for machinery or hydraulic pressure.Move radially the used star boom device of closed-in construction of carrying sliding die, around the building with the framework device of the loop configuration of building tangent be layered on workbench on the supporting scaffold.
Owing to require constantly to improve, as 300 meters high, the reinforced concrete chimney of 45 rice diameters, uneconomic, heavy self-supporting frame structure, all use the star boom device and loading transfer to the supporting scaffold.Its result, the supporting scaffold tilts, the distortion of slip elevating lever, concrete structure also can be out of shape.Thereby interrupt sliding the lifting operation.
Closed-in construction is the stiff rectangular framework normally.Under situation about having, a frame post is movably with respect to another frame post.By stiff rectangular frame structure, the gradient of the wall between the obliquity of its punching block and frame post and the punching block is parallel, or the reinforced concrete wall of gradient is installed by the axle stalk.Yet because the construction and the asynchronous installation of die face of closed-in construction, can't realize promoting consistent with shell face attenuate.Run into gradient when big, also need to increase in addition the incline position of the frame post of supporting scaffold so far, the guiding of its frame post adopts overlapping roller to realize.Owing to the critical influence that the gradient of said structure produces greatly, jammedly hindered slippage widely.
Once the someone proposed, frame construction can be made up of lower and upper cross-member and interior exterior frame column, and the diagonal angle support bar is adjustable in the distance of frame intercolumniation.But this can only do limited adjusting, the path of the elevating lever of paying special attention to slide.
The object of the present invention is to provide the framework device that has control appliance.Even the diameter maximum of building, and the gradient of wall is big, and this device still can guarantee at the light structure framework, slides on supporting scaffold and the closed-in construction.Feature of the present invention is: the upper beam of closed-in construction is fixed with lifting appliance under lifting appliance, and has crossbeam to extend on the lifting appliance.The frame post is that hinge is connected with crossbeam, and length-adjustable support bar extends to the outside of exterior frame column from top rail between above-mentioned crossbeam, and with the exterior frame column hinge, the outer crossbeam of inside casing post connects with support bar, this support bar is bordering on parallel with the inside casing post at least.
The superiority of the processes technology that this closed-in construction design obtains is significant.Because the extendible support bar of controlling flexibly between crossbeam is transferred to outside the exterior frame column, therefore in the slide process, pass through to regulate the inside casing post, can automatically realize the variation of wall thickness.Another superiority is to carry out whole variations of wall thickness by geared system automatically.Being positioned at outside the inside casing post and being bordering on another parallel support bar with it of parallelogram closed-in construction also helps adopting quick sliding mode system that concrete hollow column building is installed, and such as chimney etc., its diameter is less comparatively speaking, for example about 3 meters.Simultaneously, the wall thickness of open column shape and suchlike building can be reduced to about 20 centimetres or thinner.Therefore, sliding die device of the present invention is widely used.Employing can self parallelogram method can realize any desired gradient between top rail and stacked supporter.Simultaneously, framework has absolute rigidity, and can realize horizontal location simultaneously at all working platform.Use framework device of the present invention and star boom device, can realize and control the change of the automatic and uniformity of diameter.
It is preferably telescopic to connect support bar, is connected with crossbeam by universal joint.It is more favourable to regulate the inside casing post with shaft transmission along two crossbeams.
Another feature of the present invention is the inner that connects the star boom device of carrying closed-in construction with the ring of framework shape.Be placed on the interior ring of star boom device with the consistent tower scaffold of diameter of ring, and hoist or storage are positioned within the tower scaffold as this type of device.The latter is a center configuration, is particularly conducive to bailing bucket or miscellaneous equipment to promote concrete for the slip module system.Sliding mode system is to concentrate charging uniformly.Evenly charging also is applicable to all frame parts.Thereby the base of the same with the star boom device high tower scaffold of support reliably with closed-in construction.With limit star beam ring terminal and that transmit tower scaffold have the position of certain distance increase again one down ring be favourable.These two rings connect with axle each other.With the tower scaffold that encircles the snubbing line centre of support structural formula of engagement down.
According to another feature of the present invention, the lengthwise position of closed-in construction moves, the adjusting of inside casing post and the mutual spacing of interior closed-in construction from adjusting preferably use rack and pinion conveyer and shaft transmission.In this case, tooth bar is meshing with each other with the gear that is connected with thread spindle integral body, can regulate tooth bar with respect to rack housing with the hydraulic piston cylinder assembly.In order to realize common control, the hydraulic cylinder of above-mentioned shaft transmission and the hydraulic cylinder of hoist are the hydraulic pressure interconnection.Can or start these hydraulic cylinders separately by control valve and switching valve common activation.Like this, fluid pressure line can be programme controlled fully.
Owing to the parallel four limit row guiding of closed-in construction and the automaton of shaft transmission have been arranged, desired all or part of the moving of can sliding simultaneously.This is applicable to uses the hydraulic elevator Lifting Modules, closed-in construction overall displacements, the variation of displacement of inside casing post and interior outer frame.Can carry out intact manipulation to the movable parts of framework device, therefore can reach absolutely accurate and concrete structure uniformity.
Referring now to accompanying drawing, a concrete scheme of the present invention is described.
Fig. 1 is the schematic diagram of a concrete scheme of the framework device of closed-in construction of the present invention, includes the frame post, star boom device, and the workbench of die face and parallelogram guiding;
Fig. 2 is the longitudinal section of star girder system system of the present invention, is equipped with to promote the tower scaffold that material is used;
Fig. 3 is the plan view of framework device of the present invention or star boom device, includes the tower scaffold on the interior ring shown in Figure 2;
Fig. 4 is the schematic detail view of amplifying in proportion, and the top rail place of expression closed-in construction is to the support situation of star beam;
Fig. 5 and Fig. 6 are along the V among Fig. 4-V line and sectional view that VI-the VI line is got;
Fig. 7 is the schematic diagram that amplifies in proportion, and expression star Liang Chu is to the guiding and the adjusting device of the top rail of closed-in construction;
Fig. 8 is the elevation of a concrete device of the rack and pinion conveyer made according to the present invention, and this rack and pinion conveyer is used to regulate the parallelogram guiding of closed-in construction and the adjusting that is used for the star beam;
Fig. 9 is the adjusting device of inside casing post and amplifies the elevation that draws in proportion at its supporter at top rail and lower transverse beam place;
Figure 10 and Figure 11 are elevation and the lateral view of the crossbeam place of closed-in construction to the support of inside casing post;
Figure 12 is the elevation of the bottom of closed-in construction, has represented sliding die and is installed in the workbench on the frame post and hangs platform;
Figure 13 is the regulating system of mould parts and the floor map of guide groove.
Sliding-mode structure 1 uses hoist 2 in known manner, and hoist 2 adopts hydraulic cylinders 3 to combine with slip elevating lever 4 by eccentric clamping device etc.Whole sliding-mode structure is transported by hoist 2 with lifting arm 4.Lifting arm 4 is that the concrete wall under building provide.
Closed-in construction 6 is connected with hoist 2.Closed-in construction 6 has inside casing post 7 and exterior frame column 8.Sliding die 9 and outer sliding die 10 in the lower end of inside casing post 7 and exterior frame column 8 is connected with.By support 12 and adjustment screw 13, lower transverse beam is connected with hoist 2.Crossbeam 14 is on hoist 2.At crossbeam 11 and 14 places, exterior frame column 8 links neatly by bolt 15, and inside casing post 7 links by guide.By inside casing post 7, by the length-adjustable support bar 18 of exterior frame column one side, crossbeam 11 and 14 links each other on the other hand on the one hand.Adjustable support bar 18 preferred design become the spinner support bar, and its center of rotation part 19 and threaded bolt 20 are hinged at the crossbeam place.The lower end of spinner support bar 18 is connected at 21 places neatly with exterior frame column 8.By this method, can easily obtain the obliquity of closed-in construction, and thus frame post 7 and 8 and crossbeam 11 and 14 form an adjustable parallelogram.Therefore can easily make the frame post be suitable for the gradient of elevating lever 4 of sliding, and make closed-in construction be in the parallelogram position.Guiding at the inside casing post 7 at crossbeam 14 and crossbeam 11 places realizes by bolt 22 and bolt 23.Bolt 22 and 23 has semicircular planar end surface.Bolt 23 can engage with support member 24.
In the outside of frame post 7, crossbeam 11 is connected to each other by being connected support bar 17 with crossbeam 14.Connect support bar 17 and be installed in position near frame post 7, parallel with inside casing post 7 or be bordering on parallel.The gradient that connects support bar 17 is very big, can install that relatively diameter is less by sliding mode system, is approximately 3 meters chimney or similar building, and the thickness of its wall is attenuate relatively.The thickness of wall can reduce to about 20 centimetres or still less.
The closed-in construction 7 and 8 that connects parallelogram arrangement 11 and 14 is longitudinally guidings, can regulate at star Liang27Chu.Star Liang27Chu scheme preferably is made up of two channel section bars of arranging relatively 28.U-shaped 28 is seen Fig. 5, Fig. 6 every position bar 29() fix on each other and at intervals locate.Guiding trestle 30 is contained on the top rail 14, is used for mobile star beam 27, and encases the following nib of channel section 28.Like this, closed-in construction can be done the longitudinal direction displacement to star beam 28.The bottom of guiding trestle 30 is fixed with box section 31 tightly, and the crossbeam of being made up of U-iron 32 14 is connected on herein by angle steel 33.A rolling positioner device 34 is arranged between two guiding trestles 30.To be clamped on the crossbeam 14 rolling locator 34 by screw 35.Rolling locator 34 is furnished with top roller 36, and top roller 36 is in the position that withstands on U-shaped bar 28 from the inside.Reference number 37 expressions are every the position bar.Like this, crossbeam 14 supports star beam 27, works to bear the parts of load, can be easily along star beam shift position.By axle rotating mechanism 39, crossbeam 14 and relevant closed-in construction are done moving with respect to star beam 27.At crossbeam 14, be fixed with support 40.Shaft transmission 39 has a thread spindle 41, is guided by nut 42, and this nut support is on support 43.Support 43 is by screw (see figure 7) on star beam 27.
The interior end device of star beam 27 forms framework on ring 47, on interior ring 47, tower scaffold 48 is housed, can be suitable for providing concrete and other material to sliding mode system, and equipment.For example, can in tower scaffold 48, install and carry hoist 49, transport concrete by usefulness bailing buckets 50 such as hawsers.Carry the supporter 51 of framework to be positioned on the ring 47 of star boom device 27, can concentrate conveying equably by tower scaffold.Same situation also is applicable to the loose structure that star beam 27 extends to.Supplying and unload material is to concentrate to carry out in the building of installing, and is equally distributed at star boom device internal burden simultaneously.Ring 47 certain distances have ring 53 down on distance, as framework.Ring 47 and 53 keeps certain spatial relationship by axle 54.Tension cord 55 from encircle down 53 extend to star beam 27 suitable a bit on.By substructure 53,54 and 55, the star beam that freely overhangs on the one hand 27 is fixed by tension force, improves the stability of the upper framework ring 47 of the tower scaffold 48 of acceptance simultaneously greatly.
By being fixed on the sleeve 59 and stretching into dog screw 71 and an anti-pillar 72 of tooth bar 60, the moving range of tooth bar is limited.During firing racks gear transmission device 58, crossbeam 14 and closed-in construction are along thread spindle 41 displacements.Pawl device 69 has two pawls, and these two pawls carry out work selectively, can pin the rotation of this direction or a direction.
According to the gradient of desired wall, the inside casing post can be regulated its position with respect to exterior frame column 8, thereby changes the thickness of concrete wall.Guide gear 74 is connected with 14 with crossbeam 11 with 75. Guide gear 74 and 75 includes thread spindle 76 and 77. Thread spindle 76 and 77 and lay respectively on crossbeam 11 and 14 nut 78 and 79 the engagement.Guide gear is furnished with shaft gear.Shaft gear is hydraulically powered, its structure and the hydraulic pressure rack and pinion conveyer 58(Fig. 8 that has the lock pawl device) be consistent.Between the gear that connects support bar 17 and vicinity, universal joint part 80 is arranged.When wallboard being installed, can change the thickness of building wallboard according to predetermined direction with shaft transmission.
Sliding formwork 9 and 10 be with pivot suspension frame post 7 and 8 82 and 83 on.In their lower end, by adjusting device 84 and 85 gradients that can regulate them.Adjusting should manually be carried out.Sliding die can be furnished with rigid element 86 and 87.
The composition of die face comprises mainboard 89, membrane module 90 and accessory plate 91.The adjustment structure of being made up of angle steel 92 and 93 94 is used for the shaping of mainboard 89.Strengthen angle steel 92 and 93 for angle support bar 95.Can use the axle 96 of nut 98 drivings in support 97 upper supports.Support 97 is connected with frame post 7 or 8 in order to regulate angle steel.Narrow relatively membrane module 90 is U-shaped cross sections.The leg of U-shaped membrane module 90 is close to side by side, and is fixed together with clip.With draw rod device 99 membrane module 90 in a row side by side is installed.The composition of draw rod device 99 comprises the clamper 100 of support reinforcing bar 101.By axle 102 and accessory plate 91, membrane module 90 keeps desired round-shaped.By means of many narrow membrane modules 90, the annular surface of template can divide a lot of little steps to reduce step by step.In view of general requirement, can be used as by the membrane module 90 of mould arranged in a straight line row and to replenish or not.
Workbench 104 and 105 is installed on the crossbeam 14 by bar 106 and 107 on the one hand, is installed on the star beam 27 by slide plate 108 on the other hand.By near 110 spacer bar 109, slide plate can rotate inside casing post 8 as fulcrum.
Lower table 111 and 112 passes through to insert bar 113 rotations of frame post 7 and 8 on the one hand, and the aspect rotates by fish plate 115 places of bar 114 at workbench 104 in addition.During assembling, at first keep flat support bar 114.When further promoting sliding die, but fixed support bar 114 makes with working platform 104 to be connected with 105.
By hoist 2 by crossbeam 11 and 14 and the star beam 27 that moves of frame post 7 and 8 be fixed on the concrete panel both sides along the predetermined mutual distance of peripheral direction by shaft transmission 117.Shaft transmission 117 is identical design with other shaft transmission preferably, that is, and and rack and pinion transmission type 58, and have suitable ratchet 69.
Be used for making cabinet type structure to make vertically to regulate the hydraulic cylinder and the hydraulic cylinder of the shaft transmission 117 of the mutual edge distance mutually that is used to change cabinet type structure when the building periphery changes and the piston oil-cylinder device of hoist 2 that makes the shaft transmission 39 of inside casing post translation with gradient according to wallboard at star Liang27Chu, available hydraulic pipe 118,119,120 and 121 interconnects.By control valve and switching valve and use the center switch device, can realize a kind of control method, the lifting of sliding-mode structure can fully automatically be finished in an operation each the lifting in the operation by the gradient of support bar 18 change building diameters and wall and the thickness of change wall etc.By regulating the tooth bar and the lock pawl of tooth bar and gear drive, can set up the desired measurement of all above-mentioned variations reliably.Can reach predetermined value actually exactly by switching system, thus can be quick, building is installed safely and reliably.Adopt the parallelogram design of the closed-in construction of support bar 17 and 18, the gradient that can realize and regulate the wallboard that is mounted exactly.
Claims (16)
1, promotes the device of sliding die along steel column, this device is according to sliding mode system, framework device and adjust guiding and build the control device that concrete panel is used particularly is used to build and has the straight wallboard that changes section or the concrete structure or the building similar with it of crooked wallboard.The composition of this device comprises machinery or the hydraulic elevator that lifting supporting scaffold is used, the closed-in construction that transports sliding die moves radially used star boom device, around the building with the framework device of the loop configuration of building tangent, with the workbench that is connected with the supporting scaffold.Be characterized in: closed-in construction (6) have one under hoist (2) and with its fixing crossbeam (11), crossbeam (14) on hoist (2), the frame post (7,8) hinged with crossbeam (11,14), length-adjustable support bar (18) between the above-mentioned crossbeam (11,14), support bar (18) extends to the outside of exterior frame column (8) and hinged with exterior frame column (8) from top rail (14), crossbeam outside the inside casing post (7) (11,14) connects by support bar (17), and support bar (17) is bordering on parallel with inside casing post (7) at least.
2, according to the device of claim 1, it is characterized in that: support bar (17) is telescopic, is connected with crossbeam (11,14) by universal joint (80).
3, according to the device in claim 1 or 2, it is characterized in that: by shaft transmission (74,76; 75,77) can regulate inside casing post (7) along two crossbeams (11,14).
4, according to each device in the claim 1 to 3, it is characterized in that: the inner of the star beam (27) of mobile closed-in construction (6) be designed to framework ring (47) be connected, the tower scaffold that is suitable for ring (47) size is contained on the ring, carries hoist to be contained in the tower pin hand (48).
5, according to the device of claim 4, it is characterized in that: with respect to gantry (47), also has another ring (53), ring (53) is connected with the end of star beam (27) and carries tower scaffold (48), axle (54) connects these two rings (47,53), with the mobile position of ring (53) down of the tension cord (55) of star beam (27) engagement.
6, according to each device in the claim 1 to 5, it is characterized in that: each crossbeam (11,14) is furnished with thread spindle (76,77) and is communicated with support bar (17) by heavily changing direction gear (74,75).
7, according to each device in the claim 1 to 6, it is characterized in that: make crossbeam (11,14) go up guiding at inside casing post (7) by bolt (22,23).The end face of bolt (22,23) is flat, semicircle.
8, according to each device in the claim 1 to 7, it is characterized in that: the phase mutual edge distance between exterior frame column (8) and the inside casing post (7) is by shaft transmission (117) adjusting of going in ring, adjusting device (117) is contained in the position of frame post (7,8), its highly same sliding die (9,10).
9, according to each device in the claim 1 to 8, it is characterized in that: carry out closed-in construction (6) radial displacement, regulate inside casing post (7), and the used shaft transmission (39 of the distance of the circumferencial direction between change closed-in construction (6), 74,75,117) undertaken by rack and pinion transmission device (58).Its middle rack (60) and gear (66) engagement, gear shaft and thread spindle, be whole pass through pressurized fluid operated piston cylinder apparatus (63) and can regulating the length of tooth bar (60) with respect to rack housing of connecting, ratchet (69) closes by gear (68) and gear (66) lotus root.
10, according to each device in the claim 1 to 9, it is characterized in that: the hydraulic cylinder (63) of shaft transmission (39,74,75,117) and the hydraulic cylinder of hoist (2) by control valve (118-120) each other hydraulic pressure be connected.By control valve and/or switching valve (122), hydraulic cylinder (63) but co-operation or work independently of each other; Switch is formed (123) and is designed for this purpose.
11, according to each device in the claim 1 to 10, wherein upper table and frame are column articulated, with hinged, it is characterized in that at the top rail of exterior frame column one side: by support bar (107), workbench (105) and hinged at the star beam of inside casing post (7) one sides.
12, according to each device in the claim 1 to 11, it is characterized in that: the die face of template (9,10) movably hangs on the frame post (7,8); The adjusting device (84,85) of radial action is equipped with in bottom in sliding die (9,10) on the frame post.
13, according to each device in the claim 1 to 12, it is characterized in that: the composition of the die face of sliding die comprises mainboard (89) and membrane module (90), membrane module (90) is in a row side by side, and its cross section is a U-shaped, and the pin of membrane module is clipped together.
14, according to each device in the claim 1 to 13, it is characterized in that: regulate the shaping that (96,97,98) realize mainboards (89) by connecting rod and the axle formed by angle steel (92,93).
15, according to each device in the claim 1 to 14, it is characterized in that:, the radiai adjustment axle (102) that has template is arranged at bracing piece (101) middle part with bracing piece (101) control die set part (90).
16, according to each device in the claim 1 to 15, it is characterized in that: lower table (111,112) has fixed bar (113), and fixed bar (113) can insert frame post (7,8); External fixation bar (114) is gone up hinged at workbench (104,105), and beginning can first horizontal positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85105129 CN1008926B (en) | 1985-07-06 | 1985-07-06 | Device for lifting sliding molds along steel bars for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85105129 CN1008926B (en) | 1985-07-06 | 1985-07-06 | Device for lifting sliding molds along steel bars for construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85105129A true CN85105129A (en) | 1986-12-31 |
| CN1008926B CN1008926B (en) | 1990-07-25 |
Family
ID=4794276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85105129 Expired CN1008926B (en) | 1985-07-06 | 1985-07-06 | Device for lifting sliding molds along steel bars for construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1008926B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243960A (en) * | 2013-05-14 | 2013-08-14 | 中国能源建设集团广东省电力第一工程局 | Electric mold lifting construction method of chimney |
| CN104047420A (en) * | 2014-06-23 | 2014-09-17 | 山东电力建设第一工程公司 | Auxiliary cooling tower formwork lifting device |
| CN104234012A (en) * | 2014-09-28 | 2014-12-24 | 浙江水利水电学院 | Ultralong concrete slip form body of concrete rockfill dam and construction method of slip form body |
| CN106836076A (en) * | 2017-04-12 | 2017-06-13 | 中安安轩安全产业发展有限公司 | A kind of fitting machine of waveform guard rail |
| CN111691666A (en) * | 2020-06-30 | 2020-09-22 | 河南省第一建设集团第七建筑工程有限公司 | Be suitable for housing construction structure beam bottom reinforcing apparatus of different cross-sections |
| CN115247492A (en) * | 2021-06-08 | 2022-10-28 | 中建三局第二建设工程有限责任公司 | Adjusting device for slip form deviation rectifying and torsion correcting system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2361866B1 (en) * | 2009-12-11 | 2012-01-30 | Grupo De Ingenieria Oceanica, S.L. | TELESCOPIC STRUCTURE AND ITS LIFTING PROCEDURE. |
-
1985
- 1985-07-06 CN CN 85105129 patent/CN1008926B/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243960A (en) * | 2013-05-14 | 2013-08-14 | 中国能源建设集团广东省电力第一工程局 | Electric mold lifting construction method of chimney |
| CN103243960B (en) * | 2013-05-14 | 2015-02-11 | 中国能源建设集团广东省电力第一工程局 | Electric mold lifting construction method of chimney |
| CN104047420A (en) * | 2014-06-23 | 2014-09-17 | 山东电力建设第一工程公司 | Auxiliary cooling tower formwork lifting device |
| CN104234012A (en) * | 2014-09-28 | 2014-12-24 | 浙江水利水电学院 | Ultralong concrete slip form body of concrete rockfill dam and construction method of slip form body |
| CN104234012B (en) * | 2014-09-28 | 2016-04-27 | 浙江水利水电学院 | A kind of concrete loose rock dam ultra-long concrete sliding formwork body and construction method thereof |
| CN106836076A (en) * | 2017-04-12 | 2017-06-13 | 中安安轩安全产业发展有限公司 | A kind of fitting machine of waveform guard rail |
| CN111691666A (en) * | 2020-06-30 | 2020-09-22 | 河南省第一建设集团第七建筑工程有限公司 | Be suitable for housing construction structure beam bottom reinforcing apparatus of different cross-sections |
| CN115247492A (en) * | 2021-06-08 | 2022-10-28 | 中建三局第二建设工程有限责任公司 | Adjusting device for slip form deviation rectifying and torsion correcting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1008926B (en) | 1990-07-25 |
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