CN1975053A - Steel reinforced concrete ribbed precast slab - Google Patents
Steel reinforced concrete ribbed precast slab Download PDFInfo
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- CN1975053A CN1975053A CN 200610143065 CN200610143065A CN1975053A CN 1975053 A CN1975053 A CN 1975053A CN 200610143065 CN200610143065 CN 200610143065 CN 200610143065 A CN200610143065 A CN 200610143065A CN 1975053 A CN1975053 A CN 1975053A
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Abstract
The present invention relates to a reinforced concrete ribbed precast slab. It includes reinforced concrete long-strip base slab and reinforced concrete longitudinal long rib. It is characterized by that it has a hole which is transversely passed through said longitudinal rib or/ad base slab, said hole is one formed from several dense holes which are connected together, between the dense holes a concrete pier is set, said concrete pier can be used for connecting longitudinal long rib and/or base slab. Said ribbed precast slab is applicable to cast-in-situ reinforced concrete or prestressed reinforced concrete laminated floor, roof, wall body, foundation bedplate and bridge beam, etc.
Description
(1) technical field
The present invention relates to a kind of prefabricated plate for steel concrete with rib.
(2) background technology
At present, the reinforced concrete floor of domestic employing has cast-in-situ floor and precast floor slab, the cast-in-situ floor good integrity, but need on-the-spot formwork, concreting then, the construction period difficulty is big, the template loss is big, and cost height, precast floor slab do not need on-the-spot formwork, short construction period, cost is low, but prefabricated units lift difficulty from great, member splicing position easily produces the crack, globality is poor, is ZL0322765.2 as the patent No., name is called a kind of patent of floor spiced by steel reinforced concrete, discloses a kind of steel bar concrete prefabricated units, prefabricated units are by plate, rib constitutes, the hole of wearing reinforcing bar is arranged on the rib, and the thickness of this plate is big, and the reinforcing bar effective height that is placed in the Cast-in-place concrete is greatly reduced, influence the bidirectional stress balance of floor, be difficult to form equivalent transverse and longitudinal etc.Therefore, develop a kind of novel prefabricated plate for steel concrete with rib for being badly in need of.
(3) summary of the invention
The object of the present invention is to provide a kind of prefabricated plate for steel concrete with rib, have the member section of reducing size, reduce formwork, save characteristics such as material, easy construction, cycle weak point, globality, crack resistance and shock resistance are good.
Solution of the present invention is on the basis of existing technology, comprise the rectangular base plate of steel bar concrete, the vertically long rib of steel bar concrete, it is characterized in that having laterally run through vertical long rib or and the hole of base plate, hole is the hole that a plurality of intensive holes that connect together form, and the concrete pier that connects vertical long rib and rectangular base plate is arranged between the intensive hole.Like this, as laterally run through long rib or and during the hole of base plate, reinforcing bar can conveniently be set, make simple and convenient, effectively improve hole periphery intensity, and hole is the hole that a plurality of intensive holes that connect together form, have between the intensive hole to connect the vertically concrete pier of long rib and rectangular base plate, can effectively improve the globality and the stress performance of base plate, Cast-in-place concrete will vertically long rib build-in equably, make the base plate can be evenly stressed, not easy to crack, improved the quality of floor, improve integral intensity and rigidity, after this prefabricated plate for steel concrete with rib is applied in the floor, Cast-in-place concrete will vertically long rib build-in equably, make the base plate can be evenly stressed, not easy to crack, improved the quality of floor, can make the bidirectional load capacity variance of floor little, improve the stress performance of floor, thereby reach purpose of the present invention, be applicable to the superimposed superstructure of cast-in-situ reinforced concrete or prestressed reinforced concrete, roof system, body of wall, sole plate and bridge use, and are particularly useful for superimposed superstructure and use.
The invention is characterized in and be prefabricated distance piece between intensive hole.Like this, when being prefabricated distance piece between intensive hole, can effectively improve the globality and the stress performance of base plate, Cast-in-place concrete will vertically long rib build-in equably, make the base plate can be evenly stressed, not easy to crack, improve the quality of floor, improved integral intensity and rigidity.
The invention is characterized in and be the Cast-in-place concrete distance piece between intensive hole.Like this, when being the Cast-in-place concrete distance piece between intensive hole, easy to make, can effectively improve the globality and the stress performance of base plate, Cast-in-place concrete will vertically long rib build-in equably, make the base plate can be evenly stressed, not easy to crack, improved the quality of floor, improve integral intensity and rigidity.
The invention is characterized in and be provided with vertical long rib termination in vertical long rib or/and base plate is extended with dowel.Like this, after described prefabricated plate for steel concrete with rib was applied in the floor, the dowel that stretch out the termination can be anchored in beam or post or within the walls, can increase substantially the globality and the weight bearing power of floor.
The invention is characterized in cross rib or/and on the vertically long rib suspender member is arranged.Like this, when cross rib or/and when on the vertically long rib suspender member being arranged, after described prefabricated plate for steel concrete with rib is applied in the floor, can form very easily and hang preset piece, simultaneously, in transportation, installation process, handling is very easily installed, and helps improving speed of application, saves cost.
The invention is characterized in suspender member is arranged on the base plate.Like this, when on the base plate suspender member being arranged, after described prefabricated plate for steel concrete with rib is applied in the floor, can form very easily and hang preset piece, simultaneously, in transportation, installation process, handling is very easily installed, and helps improving speed of application, saves cost.
The invention is characterized in rectangular base plate or the vertically long rib to be provided with elongated reinforcing bar, perhaps reinforcing bar exposes.Like this, rectangular base plate or vertically the intensity and the rigidity of long rib obtained increasing substantially, make it be difficult for deformed damaged.
The invention is characterized in rectangular base plate or vertically the elongated reinforcing bar position of long rib be provided with pit or hole, expose at the elongated reinforcing bar of pit or hole position.Like this, rectangular base plate the or vertically intensity and the rigidity of long rib have obtained increasing substantially, make it be difficult for deformed damaged, and when prefabricated plate for steel concrete with rib is applied in the floor, muscle that exposes or net are with after Cast-in-place concrete combines, increased substantially the intensity of Cast-in-place concrete and prefabricated units combination interface, the two is difficult for cracking destruction to make it, has guaranteed the quality of floor.
The present invention is characterised in that rectangular base plate is provided with connector, and connector is iron wire, buckle, rope or rope.Like this, when rectangular base plate was provided with connector, prefabricated plate for steel concrete with rib was in being applied to the process of floor, and reinforcing bar and other preheating embedding line can make it be difficult for displacement very easily by connector anchoring locking, have guaranteed the pouring quality of floor.
The invention is characterized in horizontal groove is arranged on the rectangular base plate.Like this, when on the rectangular base plate horizontal groove being arranged, the longitudinal rigidity of prefabricated plate for steel concrete with rib is big, not frangibility or distortion, the support of prefabricated plate for steel concrete with rib is provided with installation when helping construction application, fully guaranteed working security, reduce the wastage, save cost, simultaneously, because of horizontal groove setting, after making prefabricated plate for steel concrete with rib and Cast-in-place concrete combining, Cast-in-place concrete enters setting and harden in the groove, with prefabricated plate for steel concrete with rib and the firmly superimposed bonding rivet clasp of cast-in-situ concrete structure, make it not easy to crack, fully guaranteed the quality of superimposed sheet.
The present invention is characterised in that for sleeping in muscle groove of horizontal groove for rearmounted logical reinforcing bar.Like this, when described prefabricated plate for steel concrete with rib is applied in the floor, setting because of heavy muscle structure groove, rebar spacing in the reinforcing bar that is placed in the cast-in-situ concrete structure and the base plate is greatly reduced, increased substantially the effective height of reinforcing bar in floor slab structure, also improved simultaneously the load-carrying construction performance of floor, the thickness of plate is greatly reduced, bearing capacity improves.
The present invention is characterised in that horizontal groove is up-small and down-big closing in groove.Like this, when horizontal groove is up-small and down-big closing in groove, after described prefabricated plate for steel concrete with rib is applied in the floor, Cast-in-place concrete is poured in the groove behind the setting and harden, with base plate firmly build-in in cast-in-situ concrete structure, no matter base plate all can not ftractureed under what situation drop, fully guaranteed the quality of application security and floor.
The present invention is characterised in that vertical long rib both sides are provided with groove.Like this, when vertical long rib both sides were provided with groove, after prefabricated plate for steel concrete with rib was applied in the floor, Cast-in-place concrete was base plate and vertical long rib build-in equably, made the base plate can be evenly stressed, and is not easy to crack, improved the quality of floor.
The present invention is characterised in that vertically long rib is provided with hole, and groove connection that will vertically long rib both sides.Like this, the setting of hole makes groove form the groove that connects, and has made things convenient for the cast of Cast-in-place concrete in application process, has guaranteed the quality of floor.
The present invention is characterised in that hole is identical with the groove cross section or inequality.Like this, can rationally select the prefabricated plate for steel concrete with rib in different hole sections and groove cross section for use, conveniently practice according to the different needs of actual conditions.
The present invention is characterised in that hole section at least one cross section less than groove.Like this, can rationally select the prefabricated plate for steel concrete with rib of hole section for use, conveniently practice according to the different needs of actual conditions less than the cross section of groove.
The present invention is characterised in that hole is circular, square or oval.Like this, can rationally select the prefabricated plate for steel concrete with rib of the hole of different shape for use, conveniently practice according to the different needs of actual conditions.
The invention is characterized in that horizontal flange has the transverse prestress projection.Like this, make the transverse strength of base plate, rigidity better, the elastoresistance deformability is strong, the shock resistance damage capability is better, makes base plate not fragile, simultaneously, after described prefabricated plate for steel concrete with rib is applied in the in-situ deposited prefabricated laminated floor slab, but base plate participation structure load improves the combination property of floor.
The invention is characterized in that transverse concave groove has the transverse prestress groove.Like this, make the transverse strength of base plate, rigidity better, the elastoresistance deformability is strong, the shock resistance damage capability is better, makes base plate not fragile, simultaneously, after described prefabricated plate for steel concrete with rib is applied in the in-situ deposited prefabricated laminated floor slab, but base plate participation structure load improves the combination property of floor.
The present invention is characterised in that vertical long rib is provided with vertical groove.Like this, after prefabricated plate for steel concrete with rib was applied in the floor, Cast-in-place concrete can be firm with its build-in better, makes cast-in-place and prefabricated interface be difficult for cracking destruction.
The present invention is characterised in that vertical long rib is provided with transverse concave groove.Like this, after prefabricated plate for steel concrete with rib was applied in the floor, Cast-in-place concrete can be firm with its build-in better, makes cast-in-place and prefabricated interface be difficult for cracking destruction.
The present invention is characterised in that at least two vertical elongated parallel reinforced steel bar settings in the rectangular base plate.Like this, make base plate have very good cooperative bearing performance, significantly improved the weight bearing power of base plate.
The present invention is characterised in that the setting of at least two longitudinal prestressing parallel reinforced steel bars in the rectangular base plate.Like this, make base plate have very good cooperative bearing performance, significantly improved the weight bearing power of base plate.
The present invention is characterised in that elongated reinforcing bar and the interior longitudinal prestressing parallel reinforced steel bar of rectangular base plate in vertical long rib.Like this, make base plate have very good cooperative bearing performance, significantly improved the weight bearing power of base plate.
The length that the invention is characterized in rectangular base plate is between the 250-720cm.Like this, can rationally select for use, make things convenient for design and construction unit to select for use according to actual conditions.
The length that the invention is characterized in rectangular base plate is 250-350cm, 350.1-400cm, 400.1-500cm, 500.1-600cm, 600.1-720cm.Like this, can rationally select for use, make things convenient for design and construction unit to select for use according to actual conditions.
The width that the invention is characterized in rectangular base plate is 40-120cm.Like this, can rationally select for use, make things convenient for design and construction unit to select for use according to actual conditions.
The width that the invention is characterized in rectangular base plate is 40-50cm, 50.1-65cm, 65.1-85cm, 85.1-100cm, 100.1-120cm.Like this, can rationally select for use, make things convenient for design and construction unit to select for use according to actual conditions.
The height that the invention is characterized in vertical long rib is 1.5-25cm, and vertically the wide of long rib is 3-25cm, 25.1-35cm.Like this, can rationally select for use, make things convenient for design and construction unit to select for use according to actual conditions.
The height that the invention is characterized in vertical long rib is 2-3cm, 3-5cm, 5-8cm, 8-10cm, 10-15cm, 15.1-25cm, and vertically the wide of long rib is 3-5cm, 5-6cm, 6-10cm, 10-25cm.Like this, can rationally select for use, make things convenient for design and construction unit to select for use according to actual conditions.
(4) description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the structural representation of the embodiment of the invention 2.
Fig. 3 is the structural representation of the embodiment of the invention 3.
Fig. 4 is the structural representation of the embodiment of the invention 4.
Fig. 5 is the structural representation of the embodiment of the invention 5.
Fig. 6 is the structural representation of the embodiment of the invention 6.
Fig. 7 is the structural representation of the embodiment of the invention 7.
Fig. 8 is the structural representation of the embodiment of the invention 8.
Fig. 9 is the structural representation of the embodiment of the invention 9.
Figure 10 is the structural representation of the embodiment of the invention 10.
Figure 11 is the structural representation of the embodiment of the invention 11.
Figure 12 is the structural representation of the embodiment of the invention 12.
Figure 13 is the structural representation of the embodiment of the invention 13.
(5) specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
The present invention as shown in drawings, comprise the rectangular base plate 1 of steel bar concrete, the vertically long rib 2 of steel bar concrete, it is characterized in that having laterally run through vertical long rib 2 or and the hole 3 of base plate 1, hole 3 has the concrete pier 4 that connects vertical long rib 2 and rectangular base plate 1 for the hole 3 that a plurality of intensive holes that connect together form between the intensive hole.In each accompanying drawing, 1 is rectangular base plate, and 2 is vertical long rib, and 3 is hole, and 4 is the concrete pier, below in each accompanying drawing, number identically, its explanation is identical.As shown in Figure 1, prefabricated plate for steel concrete with rib comprises the rectangular base plate 1 of steel bar concrete, the vertically long rib 2 of steel bar concrete, and it has the hole 3 that laterally runs through vertical long rib 2, hole 3 has the concrete pier 4 that connects vertical long rib 2 and rectangular base plate 1 for the hole 3 that a plurality of intensive holes that connect together form between the intensive hole.
The invention is characterized in and be prefabricated distance piece between intensive hole.As shown in Figure 2, be prefabricated distance piece between its intensive hole.
The invention is characterized in and be the Cast-in-place concrete distance piece between intensive hole.As shown in Figure 3, be the Cast-in-place concrete distance piece between its intensive hole.
The invention is characterized in vertical long rib 2 terminations or/and base plate 1 is extended with dowel 5.As shown in Figure 4, its vertically long rib 2 terminations are or/and base plate 1 is extended with dowel 5.
The invention is characterized in rectangular base plate 1 or/and vertically long rib 2 is provided with suspender member 6.As shown in Figure 5, its rectangular base plate 1 is or/and vertically long rib 2 is provided with suspender member 6.
The invention is characterized in rectangular base plate 1 or the vertically long rib 2 to be provided with elongated reinforcing bar 7, perhaps reinforcing bar 7 exposes.As shown in Figure 5, be provided with elongated reinforcing bar 7 in its rectangular base plate 1, and reinforcing bar 7 exposes.
Elongated reinforcing bar 7 positions that the invention is characterized in rectangular base plate 1 or vertically long rib 2 are provided with pit 8 or hole 3, expose at the elongated reinforcing bar 7 of pit 8 or hole 3 positions.As shown in Figure 5, elongated reinforcing bar 7 positions of its rectangular base plate 1 are provided with pit 8, and elongated reinforcing bar 7 exposes at pit 8 positions.
The invention is characterized in that rectangular base plate 1 is provided with connector 9, connector 9 is iron wire, buckle, rope or rope.As shown in Figure 6, its rectangular base plate 1 is provided with connector 9, and connector 9 is iron wire and buckle.
The invention is characterized in that rectangular base plate 1 is provided with horizontal groove 10.As shown in Figure 7, its rectangular base plate 1 is provided with horizontal groove 10.
The invention is characterized in for sleeping in muscle groove of horizontal groove 10 for rearmounted logical reinforcing bar.As shown in Figure 8, its horizontal groove 10 is the muscle groove for sleeping in of rearmounted logical reinforcing bar.
The invention is characterized in that horizontal groove 10 is up-small and down-big closing in groove.As shown in Figure 9, its horizontal groove 10 is up-small and down-big closing in groove.
The invention is characterized in that vertical long rib 2 both sides are provided with groove 10.As shown in Figure 7, its vertically long rib 2 both sides are provided with groove 10.
The invention is characterized in that vertically long rib 2 is provided with hole 3, and groove 10 connections that will vertically long rib 2 both sides.As shown in Figure 7, its vertically long rib 2 be provided with hole 3, and groove 10 connections that will vertically long rib 2 both sides.
The invention is characterized in that hole 3 is identical or inequality with groove 10 cross sections.As shown in figure 10, its hole 3 is inequality with groove 10 cross sections.
The invention is characterized in hole 3 sections at least one cross section less than groove 10.As shown in figure 10, its hole 3 sections are less than the cross section of groove 10.
The invention is characterized in that hole 3 is for circular, square or oval.As shown in figure 10, its hole 3 is oval.
The invention is characterized in and be provided with transverse prestress projection 11 in the groove 11.As shown in figure 11, be provided with transverse prestress projection 11 in its groove 11.
The invention is characterized in and be provided with transverse prestress groove 10 in the groove 11.As shown in figure 11, be provided with transverse prestress groove 10 in its groove 11.
The invention is characterized in that vertical long rib 2 is provided with vertical groove 10.As shown in figure 12, its vertically long rib 2 is provided with vertical groove 10.
The invention is characterized in that vertical long rib 2 is provided with horizontal groove 10.As shown in figure 12, its vertically long rib 2 is provided with horizontal groove 10.
The invention is characterized in has at least two vertical elongated reinforcing bars 6 to be arranged in parallel in the rectangular base plate 1.As shown in figure 13, there is vertical elongated reinforcing bar 6 to be arranged in parallel in its rectangular base plate 1.
The invention is characterized in has at least two longitudinal prestressing reinforcing bars 12 to be arranged in parallel in the rectangular base plate 1.As shown in figure 13, there is longitudinal prestressing reinforcing bar 12 to be arranged in parallel in its rectangular base plate 1.
The invention is characterized in that the elongated reinforcing bar 6 in vertical long rib 2 is parallel with the longitudinal prestressing reinforcing bar 12 in the rectangular base plate 1.As shown in figure 13, the elongated reinforcing bar 6 in its vertically long rib 2 is parallel with the longitudinal prestressing reinforcing bar 12 in the rectangular base plate 1.
The length that the invention is characterized in rectangular base plate 1 is between the 250-720cm.
The length that the invention is characterized in rectangular base plate 1 is 250-350cm, 350.1-400cm, 400.1-500cm, 500.1-600cm, 600.1-720cm.
The width that the invention is characterized in rectangular base plate 1 is 40-120cm.
The width that the invention is characterized in rectangular base plate 1 is 40-50cm, 50.1-65cm, 65.1-85cm, 85.1-100cm, 100.1-120cm.
The height that the invention is characterized in vertical long rib 2 is 1.5-25cm, and the wide of vertically long rib 2 is 3-25cm, 25.1-35cm.
The height that the invention is characterized in vertical long rib 2 is 2-3cm, 3-5cm, 5-8cm, 8-10cm, 10-15cm, 15.1-25cm, and the wide of vertically long rib 2 is 3-5cm, 5-6cm, 6-10cm, 10-25cm.
Claims (10)
1, a kind of prefabricated plate for steel concrete with rib, comprise the rectangular base plate of steel bar concrete (1), the vertically long rib of steel bar concrete (2), it is characterized in that having laterally run through vertical long rib (2) or and the hole (3) of base plate (1), hole (3) has the concrete pier (4) that connects vertical long rib (2) and rectangular base plate (1) for the hole (3) that a plurality of intensive holes that connect together form between the intensive hole.
2, prefabricated plate for steel concrete with rib according to claim 1 is characterized in that being between intensive hole prefabricated distance piece.
3, prefabricated plate for steel concrete with rib according to claim 1 is characterized in that being between intensive hole the Cast-in-place concrete distance piece.
4, prefabricated plate for steel concrete with rib according to claim 1 is characterized in that vertically long rib (2) termination or/and base plate (1) is extended with dowel (5).
5, prefabricated plate for steel concrete with rib according to claim 1 is characterized in that rectangular base plate (1) or/and vertically long rib (2) is provided with suspender member (6).
6, prefabricated plate for steel concrete with rib according to claim 1 is characterized in that being provided with elongated reinforcing bar (7) in rectangular base plate (1) or the vertically long rib (2), and perhaps reinforcing bar (7) exposes.
7, prefabricated plate for steel concrete with rib according to claim 6, elongated reinforcing bar (7) position that it is characterized in that rectangular base plate (1) or vertically long rib (2) is provided with pit (8) or hole (3), exposes at pit (8) or the elongated reinforcing bar in hole (3) position (7).
8, prefabricated plate for steel concrete with rib according to claim 6 is characterized in that rectangular base plate (1) is provided with connector (9), and connector (9) is iron wire, buckle, rope or rope.
9,, it is characterized in that rectangular base plate (1) is provided with horizontal groove (10) according to the described prefabricated plate for steel concrete with rib of arbitrary claim in the claim 1 to 8; Perhaps horizontal groove (10) is the muscle groove for sleeping in of rearmounted logical reinforcing bar; Perhaps horizontal groove (10) is up-small and down-big closing in groove; Perhaps vertically long rib (2) both sides are provided with groove (10); Perhaps vertically long rib (2) is provided with hole (3), and groove (10) connection that will vertically long rib (2) both sides; Perhaps hole (3) is identical or inequality with groove (10) cross section; Perhaps hole (3) section is less than at least one cross section of groove (10); Perhaps hole (3) is circular, square or oval; Perhaps be provided with transverse prestress projection (11) in the groove (11); Perhaps be provided with transverse prestress groove (10) in the groove (11).
10,, it is characterized in that vertically long rib (2) is provided with vertical groove (10) according to the described prefabricated plate for steel concrete with rib of arbitrary claim in the claim 1 to 8; Perhaps vertically long rib (2) is provided with horizontal groove (10); There are at least two vertical elongated reinforcing bars (6) to be arranged in parallel in the perhaps rectangular base plate (1); There are at least two longitudinal prestressing reinforcing bars (12) to be arranged in parallel in the perhaps rectangular base plate (1); Elongated reinforcing bar (6) in the perhaps vertically long rib (2) is parallel with the longitudinal prestressing reinforcing bar (12) in the rectangular base plate (1); The length of perhaps rectangular base plate (1) is between the 250-720cm; The length of perhaps rectangular base plate (1) is 250-350cm, 350.1-400cm, 400.1-500cm, 500.1-600cm, 600.1-720cm; The width of perhaps rectangular base plate (1) is 40-120cm; The width of perhaps rectangular base plate (1) is 40-50cm, 50.1-65cm, 65.1-85cm, 85.1-100cm, 100.1-120cm; The height of perhaps vertically long rib (2) is 1.5-25cm, and the wide of vertically long rib (2) is 3-25cm, 25.1-35cm; The height of perhaps vertically long rib (2) is 2-3cm, 3-5cm, 5-8cm, 8-10cm, 10-15cm, 15.1-25cm, and the wide of vertically long rib (2) is 3-5cm, 5-6cm, 6-10cm, 10-25cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610143065 CN1975053A (en) | 2006-11-01 | 2006-11-01 | Steel reinforced concrete ribbed precast slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610143065 CN1975053A (en) | 2006-11-01 | 2006-11-01 | Steel reinforced concrete ribbed precast slab |
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| Publication Number | Publication Date |
|---|---|
| CN1975053A true CN1975053A (en) | 2007-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610143065 Pending CN1975053A (en) | 2006-11-01 | 2006-11-01 | Steel reinforced concrete ribbed precast slab |
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| Country | Link |
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| CN (1) | CN1975053A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845862B (en) * | 2009-12-10 | 2012-01-25 | 吴方伯 | Manufacture method of ribbed superposed prestress reinforced concrete precast slab |
-
2006
- 2006-11-01 CN CN 200610143065 patent/CN1975053A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845862B (en) * | 2009-12-10 | 2012-01-25 | 吴方伯 | Manufacture method of ribbed superposed prestress reinforced concrete precast slab |
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Application publication date: 20070606 |