CN104088220A - Finished product prestress steel strand - Google Patents
Finished product prestress steel strand Download PDFInfo
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- CN104088220A CN104088220A CN201410339465.XA CN201410339465A CN104088220A CN 104088220 A CN104088220 A CN 104088220A CN 201410339465 A CN201410339465 A CN 201410339465A CN 104088220 A CN104088220 A CN 104088220A
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Abstract
The invention relates to a finished product prestress steel strand which comprises at least two prestress rib penetrating devices, prestress ribs in the number the same as the prestress rib penetrating devices and at least two marking plates. Each marking plate is provided with perforation holes matched with the prestress rib penetrating devices in quantity and diameter, one end of each prestress rib penetrates through one perforation hole of one marking plate and is fixed into the corresponding prestress rib penetrating device, and the other end of the corresponding prestress rib penetrates through the perforation hole, at the same position as the preceding perforation hole, of the other marking plate. The finished product prestress steel strand is simple in structure, convenient to operate, low in cost and high in strength, can clamp and fix the prestress ribs, achieves efficient penetrating with the help of the marking plates at the two ends of the steel strand, guarantees that the whole bundle of prestress ribs can be arranged in order one by one in the penetrating process and cannot distort or intertwine, hidden risks of a tension function are reduced, the series size of the penetrating devices meet construction requirements for different quantities of prestress ribs and diverse structures.
Description
Technical field
The present invention relates to a kind of civil engineering bridge construction equipment, relate in particular to a kind of finished product prestressing tendon with draw-gear.
Background technology
So-called prestressed reinforced concrete construction, before structural element is subject to external force load action, first artificially it is exerted pressure, consequent pre-stressed state is in order to reduce or to offset the caused tensile stress of external load, by means of the higher compressive strength of concrete, make up the deficiency of its tensile strength, reach the object of postponing tensile zone concrete cracking.The structure made from prestressed concrete, adopts the method for tension reinforcing steel bar to reach the object of compressive pre-stress, so be also referred to as prestressed reinforced concrete structure conventionally.In the building course of railway, highway bridge, the structures such as various continuous beams, continuous rigid frame and continuous beam arch, have all adopted this prestressed reinforced concrete structure in a large number.
Specifically, the manufacture process of prestressed reinforced concrete construction generally includes following several step, first, and by steel strands-woven bundle; Secondly, all of the steel strand priority of compiling bunchy drawn in bellows stand-by; Then, carry out concreting; Finally, implement the stretch-draw operation of presstressed reinforcing steel, after stretch-draw, locking ground tackle; According to the needs of practice of construction, presstressed reinforcing steel may be compiled into by 4-24 root a branch of, and the length of every bundle is greatly about 80-120 rice left and right, and gross weight can reach 5-7 ton; Because the quantity of presstressed reinforcing steel is many, weight is large, in the process of lashing, conventionally to can complete by the help side of the external equipments such as hoist engine and strand pulling machine inefficiency and wasting time and energy; Being connected between the end of presstressed reinforcing steel and said external equipment must be very firm, could in the process of lashing, transmit enough tractive force to presstressed reinforcing steel, makes it smoothly through bellows; In addition, because existing lashing mode normally penetrates each root in whole bundle presstressed reinforcing steel bellows one by one, each presstressed reinforcing steel is in penetrating the process of bellows, easily twist each other and be wound around, for follow-up stretch-draw operation, retain hidden danger, have a strong impact on the quality of prestressed reinforced concrete structure.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of finished product prestressing tendon, it is simple in structure, easy to operate, cost is low and intensity is high, presstressed reinforcing steel firmly can be gripped, under the help of steel strand two ends marking plate, realize efficient lashing smoothly, guaranteed that whole bundle presstressed reinforcing steel can make in order by root in lashing process, be not distorted each other and be wound around, reduced the hidden danger of stretch-draw effect; Meanwhile, the serial size setting that this connects device, has also met the various construction demand of presstressed reinforcing steel varying number and structure.
For solving the problems of the technologies described above, the present invention adopts following technical proposals: a kind of finished product prestressing tendon, and it comprises that at least two presstressed reinforcing steels connect device, connect presstressed reinforcing steel and at least two marking plates of device quantity Matching with presstressed reinforcing steel, on described each marking plate, offer with presstressed reinforcing steel and connect the perforation that device quantity and diameter mate, every presstressed reinforcing steel one end is passed the perforation of a marking plate and is fixed on presstressed reinforcing steel and connects in device, and the other end of presstressed reinforcing steel is through the perforation of another marking plate same position, every presstressed reinforcing steel passes respectively the perforation of the same position of two marking plates, make this presstressed reinforcing steel can keep relatively-stationary position when walking bellows, avoided mutual distortion and the differentially-wound phenomenon of whole bundle presstressed reinforcing steel when walking bellows, reduce stretch-draw and made the hidden danger of used time, the number of boring a hole on marking plate connects device quantity with presstressed reinforcing steel and diameter mates, and has also met the various construction demand of presstressed reinforcing steel varying number and structure.
Described presstressed reinforcing steel connects device and comprises outer sleeve, drawing head and at least three interior holding pieces, the outer wall correspondence position coupling of outer sleeve inwall and drawing head is provided with screw thread, drawing head is screwed together in outer sleeve one end, presstressed reinforcing steel is located at outer sleeve inside through the outer sleeve other end, this is located between the lateral wall of presstressed reinforcing steel of outer sleeve inside and corresponding outer sleeve inwall and is along the circumferential direction folded with at least two interior holding pieces, between interior holding piece, be provided with gap between two, to draw close gradually until touch between holding piece between two while heading between outer sleeve and presstressed reinforcing steel completely being pulled head, presstressed reinforcing steel is fixedly clamped, the thickness of this interior holding piece is along the screw-in direction attenuation gradually of described drawing head, and the barrel thickness of holding piece is along the screw-in direction of described drawing head thickening gradually in described outer sleeve correspondence, the inner end of described drawing head and one end of interior holding piece are inconsistent, interior holding piece between outer sleeve and presstressed reinforcing steel for being slidably matched, to interact presstressed reinforcing steel be fixedly clamped by outer sleeve and interior holding piece, it is simple that this connects apparatus structure, easy to operate, construction cost is low.
The inner face of described drawing head is concaved with groove, so that the end for presstressed reinforcing steel is in the inner accommodating, the diameter of groove and the diameter of presstressed reinforcing steel match, so that the sidewall of groove is in precession process, internally the holding piece application of force, slides interior holding piece and coordinates presstressed reinforcing steel is fixedly clamped with outer sleeve; Between the diapire of groove and the outer face of drawing head, offer through hole, so that the pull rope end being connected on hoist engine is passed to this through hole and is fixed in groove, traction whole piece finished product prestressing tendon is through bellows.
Describedly be located at the excircle of at least two presstressed reinforcing steel integral body that presstressed reinforcing steel connects the mark plate both sides of device one end and be coated with respectively strapping, be convenient to retrain the position of marking plate, make it can pass through bellows completely, and be not stranded in bellows, and then whether the spacing presstressed reinforcing steel of marking plate at marker for judgment two ends that can be by marking plate have distortion to be wound around, avoid follow-up stretch-draw operation to encounter problems.
The inwall of described interior holding piece is parallel with the center line of described holding piece, the outer wall of interior holding piece and the center line of described holding piece are the first angle α, the first described angle α is 3.5 °-5.8 °, and in described outer sleeve correspondence, the outer wall of barrel and the center line of described outer sleeve of holding piece position are parallel, the inwall of outer sleeve and the center line of described outer sleeve are the second angle β, the second described angle β is 3.8 °-6 °, is in order more effectively whole bundle presstressed reinforcing steel to be connected to be added and to be fastened.
The contact surface of described interior holding piece and presstressed reinforcing steel is provided with anti-slip veins, and described anti-slip veins is reticulate pattern, thread, pitted skin decorative pattern or irregular lines, be for increase and presstressed reinforcing steel between frictional force.
According to the difference of presstressed reinforcing steel diameter to be connected, the quantity of described interior holding piece is 3-6, and the spacing distance between interior holding piece is 10 millimeters-40 millimeters between two.
According to the difference of presstressed reinforcing steel diameter to be connected, this size that connects all parts in device is also different, and the length of described outer sleeve is 120 millimeters-230 millimeters; The length of described interior holding piece is 50 millimeters-90 millimeters; The length of described drawing head is 60 millimeters-115 millimeters; The external diameter of described outer sleeve is 59 millimeters-92 millimeters; The internal diameter of described interior holding piece is 49 millimeters-78 millimeters.
Described marking plate is by the corresponding ground tackle structure of steel strand radical, to imitate type manufacture according to prestressing tendon, and the material of marking plate is nonmetal flexible material, can be rubber, silica gel or foamed plastics, so that marking plate can smooth and easyly pass through bellows.
Beneficial effect of the present invention is as follows:
The present invention is simple in structure, easy to operate, cost is low and intensity is high, presstressed reinforcing steel firmly can be gripped, under the help of steel strand two ends marking plate, realize efficient lashing smoothly, guaranteed that whole bundle presstressed reinforcing steel can make in order by root in lashing process, be not distorted each other and be wound around, reducing the hidden danger of stretch-draw effect; Meanwhile, the serial size setting that this connects device, has also met the various construction demand of presstressed reinforcing steel varying number and structure.
Accompanying drawing explanation
Fig. 1 illustrates overall structure schematic diagram of the present invention;
Fig. 2 illustrates the cross-sectional view that presstressed reinforcing steel of the present invention connects device;
Fig. 3 illustrates the embodiment of the present invention one plate to be marked and wears the cross sectional representation of presstressed reinforcing steel thereon;
Fig. 4 illustrates the structural representation of the interior holding piece in the embodiment of the present invention one;
Fig. 5 illustrates the cross-sectional view of the interior holding piece in the embodiment of the present invention one;
Fig. 6 illustrates the cross-sectional view of the outer sleeve in the embodiment of the present invention one;
Fig. 7 illustrates the cross-sectional view of the drawing head in the embodiment of the present invention one;
Fig. 8 illustrates the local structure for amplifying schematic diagram of A of Fig. 5;
Fig. 9 illustrates the cross sectional representation of the whole bundle presstressed reinforcing steel that the embodiment of the present invention two is to be connected;
Figure 10 illustrates the cross sectional representation of the whole bundle presstressed reinforcing steel that the embodiment of the present invention three is to be connected;
Figure 11 illustrates the cross sectional representation of the whole bundle presstressed reinforcing steel that the embodiment of the present invention four is to be connected.
The specific embodiment
Embodiment 1
Shown in Fig. 1-Fig. 8, a kind of finished product prestressing tendon, it comprises that nineteen presstressed reinforcing steel connects device 1, connects presstressed reinforcing steel 2 and two marking plates 3 of device 1 quantity Matching with presstressed reinforcing steel; On described each marking plate 3, offer with presstressed reinforcing steel and connect the perforation 31 that device 1 quantity and diameter mate, every presstressed reinforcing steel 2 one end are passed the perforation 31 of a marking plate 3 and are fixed on presstressed reinforcing steel and connect in device 1, and the other end of presstressed reinforcing steel 2 is through the perforation 31 of another marking plate 3 same positions.
Described presstressed reinforcing steel connects device 1 and comprises outer sleeve 11, drawing head 12 and four interior holding pieces 13, the outer wall correspondence position coupling of outer sleeve 11 inwalls and drawing head 12 is provided with screw thread, drawing head 12 is screwed together in outer sleeve 11 one end, presstressed reinforcing steel 2 is located at outer sleeve 11 inside through outer sleeve 11 other ends, this is located between the lateral wall of presstressed reinforcing steel 2 of outer sleeve 11 inside and corresponding outer sleeve 11 inwalls and is along the circumferential direction folded with four interior holding pieces 13, between interior holding piece 13, be provided with gap between two, the thickness of this interior holding piece 13 is along the screw-in direction attenuation gradually of described drawing head 12, and in described outer sleeve 11 is corresponding, the barrel thickness of holding pieces 13 is along the screw-in direction of described drawing head 12 thickening gradually, one end of the inner end of described drawing head 12 and interior holding piece 13 is inconsistent, interior holding piece 13 between outer sleeve 11 and presstressed reinforcing steel 2 for being slidably matched.
The inner face of described drawing head 12 is concaved with groove 121, and the diameter of the diameter of groove 121 and presstressed reinforcing steel 2 matches; Between the outer face of the diapire of groove 121 and drawing head 12, offer through hole 122.
Describedly be located at the excircle of nineteen presstressed reinforcing steel 2 integral body that presstressed reinforcing steel connects mark plate 3 both sides of device 1 one end and be coated with respectively strapping 4.
The inwall of described interior holding piece 13 is parallel with the center line of described holding piece 13, the center line of the outer wall of interior holding piece 13 and described holding piece 13 is the first angle α, the first described angle α is 4.2 °, and in described outer sleeve 11 is corresponding, the outer wall of the barrel of holding piece 13 positions is parallel with the center line of described outer sleeve 11, the center line of the inwall of outer sleeve 11 and described outer sleeve 11 is the second angle β, and the second described angle β is 4.5 °.
Described interior holding piece 13 is provided with anti-slip veins 131 with the contact surface of presstressed reinforcing steel 2, and described anti-slip veins 131 is thread; The nonstandard screw thread that the concrete technical data of thread 131 is M76 * 2, pitch D is 2 millimeters, thread 131 crowns are towards the direction that penetrates of whole bundle presstressed reinforcing steel 2 to be connected; The crown angle of each profile of tooth is 70 °, and the angle of tooth root both sides is respectively 35 ° and 75 °; Certainly, according to the difference of whole bundle presstressed reinforcing steel to be connected 2 bundle numbers, the difference of external diameter size, in the process connecting, the difference of needed tractive force, profile of tooth, pitch D and profile of tooth angle that can double thread tooth 131 be adjusted.
The quantity of described interior holding piece 13 is 4, and the spacing distance between interior holding piece 13 is 20 millimeters between two.
The length of described outer sleeve 11 is 200 millimeters; The length of described interior holding piece 13 is 80 millimeters; The length of described drawing head 12 is 100 millimeters; The external diameter of described outer sleeve 11 is 90 millimeters; The internal diameter of described interior holding piece 13 is 76 millimeters.
The material of marking plate 3 is rubber.
Operating principle
The course of work that this presstressed reinforcing steel provided by the present invention connects device is such: first, presstressed reinforcing steel to be connected 2 is located in to outer sleeve 11 inside, secondly, a plurality of interior holding pieces 13 are filled in to the circumferencial direction between outer sleeve 11 and presstressed reinforcing steel 2, again drawing head 12 and outer sleeve 11 are progressively screwed togather fixing, drawing head 12 recess sidewall promote a plurality of interior holding pieces 13 and slide in screw-in process, because the outer wall of outer sleeve 11 is parallel with the center line of outer sleeve 11, barrel is along the screw-in direction of drawing head 12 thickening gradually, and the inwall of interior holding piece 13 is parallel with the center line of interior holding piece 13, thickness prolongs the screw-in direction attenuation gradually of described drawing head 12, slip along with interior holding piece 13, the inner space of outer sleeve 11 is more and more less, in addition the thickness of interior holding piece 13 is also grading structure, and under the effect of the thread 131 arranging on interior holding piece 13 and presstressed reinforcing steel contact surface, to being positioned at inner presstressed reinforcing steel to be connected 2, be fixedly clamped, the end of presstressed reinforcing steel 2 is finally placed in the groove 121 of drawing head 12, drawing head 12 screws togather fixing with outer sleeve 11, then, then the pull rope end being connected with hoist engine passed to the through hole 122 of drawing head 12 and is fixed in groove 121, completing the installation that a presstressed reinforcing steel connects device 1,
Repeat aforesaid operations, whole bundle presstressed reinforcing steel contraposition to be connected is passed respectively to the perforation 31 on two marking plates 3, at presstressed reinforcing steel, connect on the excircle of whole bundle presstressed reinforcing steel integral body to be connected of marking plate 3 both sides of device 1 one sides coated strapping 4 respectively, pull rope is through being embedded in the bellows in prestressed concrete member, another marking plate 3 is moved to presstressed reinforcing steel spool one side that connects device 1 away from presstressed reinforcing steel, completed a kind of installation of finished product prestressing tendon;
Start hoist engine, pull rope draws a kind of finished product prestressing tendon through being embedded in the bellows in prestressed concrete member, take a marking plate out of, whether the bearing mark of checking on the marking plate of bearing mark on this marking plate and the prestressed concrete member other end is consistent, as unanimously, just can implement to prestressing tendon the stretch-draw operation of presstressed reinforcing steel.
Embodiment 2
Shown in Figure 9, a kind of finished product prestressing tendon, its difference from Example 1 is, and the quantity of whole bundle presstressed reinforcing steel 2 to be connected is seven, and the entire outer diameter of seven presstressed reinforcing steels 2 is 100 millimeters; Corresponding, the quantity of interior holding piece 13 is 3, the length of interior holding piece 13 is 50 millimeters, 49 millimeters of interior holding piece 13 internal diameters, the thin one end external diameter of interior holding piece 13 walls is 52 millimeters, and one end external diameter of interior holding piece 13 wall thickness is 56 millimeters, and the first angle α is 3.5 °; The total length of outer sleeve 11 is 120 millimeters, and external diameter is 59 millimeters; The part internal diameter of outer sleeve 11 wall thickness such as grade is 52 millimeters, and the length of wall thickness gradual change part is 48 millimeters, and internal diameter is from 52 millimeters of 51 millimeters of fading to end, and the second angle β is 3.8 °; The length of drawing head 12 is 60 millimeters, 53 millimeters of external diameters, 51 millimeters of internal diameters.
Embodiment 3
Shown in Figure 10, a kind of finished product prestressing tendon, its difference from Example 1 is, and the quantity of whole bundle presstressed reinforcing steel 2 to be connected is 13, and the entire outer diameter of 13 presstressed reinforcing steels 2 is 150 millimeters; Corresponding, the quantity of interior holding piece 13 is 4, the length of interior holding piece 13 is 80 millimeters, 74 millimeters of interior holding piece 13 internal diameters, the thin one end external diameter of interior holding piece 13 walls is 78 millimeters, and one end external diameter of interior holding piece 13 wall thickness is 80 millimeters, and the first angle α is 4.6 °; Overcoat, 11 total length is 200 millimeters, outer sleeve 11 external diameters are 88 millimeters, the part internal diameter of outer sleeve 11 wall thickness such as grade is 78 millimeters, the length of outer sleeve 11 wall thickness gradual change parts is 80 millimeters, and outer sleeve 11 internal diameters are from 78 millimeters of 76 millimeters of fading to end, and the second angle β is 4.8 °; The length of drawing head 12 is 100 millimeters, 79 millimeters of drawing head 12 external diameters, 76 millimeters of drawing head 2 internal diameters.
Embodiment 4
Shown in Figure 11, a kind of finished product prestressing tendon, its difference from Example 1 is, and the quantity of whole bundle presstressed reinforcing steel 2 to be connected is 24, and the entire outer diameter of 24 presstressed reinforcing steels 2 is 160 millimeters; Corresponding, the quantity of interior holding piece 13 is 6, the length of interior holding piece 13 is 90 millimeters, 78 millimeters of interior holding piece 13 internal diameters, the thin one end external diameter of interior holding piece 13 walls is 82 millimeters, and one end external diameter of interior holding piece 13 wall thickness is 84 millimeters, and the first angle α is 5.8 °; The total length of outer sleeve 11 is 230 millimeters, outer sleeve 11 external diameters are 92 millimeters, and the part internal diameter of outer sleeve 11 wall thickness such as grade is 82 millimeters, and the length of outer sleeve 11 wall thickness gradual change parts is 92 millimeters, outer sleeve 11 internal diameters are from 82 millimeters of 80 millimeters of fading to end, and the second angle β is 6 °; The length of drawing head 12 is 115 millimeters, 83 millimeters of drawing head 12 external diameters, 80 millimeters of drawing head 12 internal diameters.
As mentioned above, a kind of finished product prestressing tendon of the present invention, described embodiment and figure; it is the good implementation result of the present invention; be not to be confined to the present invention, approximate, the identical person such as structure every and of the present invention, feature, all should belong to the scope of protection of the invention.
Claims (10)
1. a finished product prestressing tendon, is characterized in that: it comprises that at least two presstressed reinforcing steels connect device (1), connect presstressed reinforcing steel (2) and at least two marking plates (3) of device (1) quantity Matching with presstressed reinforcing steel; On described each marking plate (3), offer with presstressed reinforcing steel and connect the perforation (31) that device (1) quantity and diameter mate, every presstressed reinforcing steel (2) one end is passed the perforation (31) of a marking plate (3) and is fixed on presstressed reinforcing steel and connects in device (1), and the other end of presstressed reinforcing steel (2) is through the perforation (31) of another marking plate (3) same position.
2. a kind of finished product prestressing tendon according to claim 1, it is characterized in that: described presstressed reinforcing steel connects device (1) and comprises outer sleeve (11), drawing head (12) and at least two interior holding pieces (13), the outer wall correspondence position coupling of outer sleeve (11) inwall and drawing head (12) is provided with screw thread, drawing head (12) is screwed together in outer sleeve (11) one end, presstressed reinforcing steel (2) is located at outer sleeve (11) inside through outer sleeve (11) other end, this is located between the lateral wall of the inner presstressed reinforcing steel (2) of outer sleeve (11) and corresponding outer sleeve (11) inwall and is along the circumferential direction folded with at least two interior holding pieces (13), between interior holding piece (13), be provided with gap between two, the thickness of this interior holding piece (13) is along the screw-in direction attenuation gradually of described drawing head (12), and in described outer sleeve (11) is corresponding, the barrel thickness of holding piece (13) is along the screw-in direction of described drawing head (12) thickening gradually, one end of the inner end of described drawing head (12) and interior holding piece (13) is inconsistent, interior holding piece (13) between outer sleeve (11) and presstressed reinforcing steel (2) for being slidably matched.
3. a kind of finished product prestressing tendon according to claim 2, is characterized in that: the inner face of described drawing head (12) is concaved with groove (121), and the diameter of the diameter of groove (121) and presstressed reinforcing steel (2) matches; Between the outer face of the diapire of groove (121) and drawing head (12), offer through hole (122).
4. according to a kind of finished product prestressing tendon described in claim 1,2 or 3, it is characterized in that: described in be located at the whole excircle of at least two presstressed reinforcing steels (2) that presstressed reinforcing steel connects mark plate (3) both sides of device (1) one end and be coated with respectively strapping (4).
5. a kind of finished product prestressing tendon according to claim 2, it is characterized in that: the inwall of described interior holding piece (13) is parallel with the center line of described holding piece (13), the center line of the outer wall of interior holding piece (13) and described holding piece (13) is the first angle α, the first described angle α is 3.5 °-5.8 °, and in described outer sleeve (11) is corresponding, the outer wall of the barrel of holding piece (13) position is parallel with the center line of described outer sleeve (11), the center line of the inwall of outer sleeve (11) and described outer sleeve (11) is the second angle β, the second described angle β is 3.8 °-6 °.
6. a kind of finished product prestressing tendon according to claim 5, it is characterized in that: described interior holding piece (13) is provided with anti-slip veins (131) with the contact surface of presstressed reinforcing steel (2), and described anti-slip veins (131) is reticulate pattern, thread, pitted skin decorative pattern or irregular lines.
7. a kind of finished product prestressing tendon according to claim 6, is characterized in that: the quantity of described interior holding piece (13) is 3-6, and the spacing distance between interior holding piece (13) is 10 millimeters-40 millimeters between two.
8. a kind of finished product prestressing tendon according to claim 2, is characterized in that: the length of described outer sleeve (11) is 120 millimeters-230 millimeters; The length of described interior holding piece (12) is 50 millimeters-90 millimeters; The length of described drawing head (12) is 60 millimeters-115 millimeters; The external diameter of described outer sleeve (11) is 59 millimeters-92 millimeters; The internal diameter of described interior holding piece (13) is 49 millimeters-78 millimeters.
9. according to a kind of finished product prestressing tendon described in claim 1,2,3,5,6,7 or 8, it is characterized in that: the material of marking plate (3) is nonmetal flexible material.
10. a kind of finished product prestressing tendon according to claim 4, is characterized in that: the material of marking plate (3) is nonmetal flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410339465.XA CN104088220B (en) | 2014-07-16 | 2014-07-16 | A kind of finished product prestressing tendon |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410339465.XA CN104088220B (en) | 2014-07-16 | 2014-07-16 | A kind of finished product prestressing tendon |
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| CN104088220A true CN104088220A (en) | 2014-10-08 |
| CN104088220B CN104088220B (en) | 2015-09-09 |
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| CN201410339465.XA Expired - Fee Related CN104088220B (en) | 2014-07-16 | 2014-07-16 | A kind of finished product prestressing tendon |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040906A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Pushable finished steel strand beam with external hooping ring |
| CN105040908A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Pushable finished steel stranded wire harness |
| CN112726961A (en) * | 2020-12-29 | 2021-04-30 | 福建省晓沃建设工程有限公司 | Prestressed steel strand laying device and method |
| CN114101978A (en) * | 2021-11-27 | 2022-03-01 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Novel assembly line structure and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011236565A (en) * | 2010-05-06 | 2011-11-24 | Ohbayashi Corp | Construction method of prestressed concrete structure strained in vertical direction |
| CN103590539A (en) * | 2013-10-17 | 2014-02-19 | 天津鑫坤泰预应力专业技术有限公司 | Finished steel strand bundle |
| CN203487791U (en) * | 2013-08-06 | 2014-03-19 | 天津鑫坤泰预应力专业技术有限公司 | Finished steel strand dedicated tractor with anchorage device |
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2014
- 2014-07-16 CN CN201410339465.XA patent/CN104088220B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011236565A (en) * | 2010-05-06 | 2011-11-24 | Ohbayashi Corp | Construction method of prestressed concrete structure strained in vertical direction |
| CN203487791U (en) * | 2013-08-06 | 2014-03-19 | 天津鑫坤泰预应力专业技术有限公司 | Finished steel strand dedicated tractor with anchorage device |
| CN103590539A (en) * | 2013-10-17 | 2014-02-19 | 天津鑫坤泰预应力专业技术有限公司 | Finished steel strand bundle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040906A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Pushable finished steel strand beam with external hooping ring |
| CN105040908A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Pushable finished steel stranded wire harness |
| CN112726961A (en) * | 2020-12-29 | 2021-04-30 | 福建省晓沃建设工程有限公司 | Prestressed steel strand laying device and method |
| CN114101978A (en) * | 2021-11-27 | 2022-03-01 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Novel assembly line structure and manufacturing method thereof |
| CN114101978B (en) * | 2021-11-27 | 2023-10-20 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Collecting line structure and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN104088220B (en) | 2015-09-09 |
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