CN103541492A - Precast concrete member - Google Patents

Precast concrete member Download PDF

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Publication number
CN103541492A
CN103541492A CN201310546652.0A CN201310546652A CN103541492A CN 103541492 A CN103541492 A CN 103541492A CN 201310546652 A CN201310546652 A CN 201310546652A CN 103541492 A CN103541492 A CN 103541492A
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CN
China
Prior art keywords
concrete
precast unit
precast
unit
concrete slab
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Pending
Application number
CN201310546652.0A
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Chinese (zh)
Inventor
初明进
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初明进
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Priority to CN201310546652.0A priority Critical patent/CN103541492A/en
Publication of CN103541492A publication Critical patent/CN103541492A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a precast concrete member which belongs to the technical field of precast concrete structures. According to the precast concrete member, two or more concrete plates transversely extend out of the side face of the precast concrete member; holes are formed in the concrete plates. The connecting reliability between precast concrete members is improved, the industrialization level of a building structure is improved, and resources are saved.

Description

A kind of precast unit
Technical field
The invention belongs to prefabricated reinforced concrete structure technical field, relate in particular to a kind of precast concrete member.
Background technology
In monolithic reinforced concrete structure work progress, field fabrication is many, and wet trade is many, has the intermediate links such as a large amount of form work engineerings, scaffolding work, waste resource, contaminated environment; Practitioner's quality, construction environment etc. are very large on build guality impact, bring the problems such as building performance, quality and durability.Change the status quo, should greatly develop precast concrete, reduce field fabrication concrete structure amount, improve prefabricated rate.The primary structure member of precast concrete is made in factory, and production efficiency is high, quality good, and saving resource and the energy, be conducive to sustainable development.Adopting precast concrete is the direction of industrialization of construction industry development.
In precast concrete, between prefabricated units, have seam, the bonding surface of seam crossing new-old concrete is weak link, and its stress performance has determined integrality performance of the structure; Under load action, seam crossing can produce shear stress etc., is easy to cracking, slippage, and impact is normally used.
For improving the performance of precast concrete, there is technology, at precast unit side, sunk key is set, can increase new-old concrete bonding surface area, can play the effect that improves seam properties; But there are some researches show, under load action, precast concrete is along new-old concrete bonding surface cracking, slippage, its switching performance Shortcomings.Sunk key is set also increases the consumption of junction template area and rear pouring concrete, reduces overall structure industrialization rate.
In prior art, the junction of precast concrete prefabricated units is provided with connecting reinforcement, for example, add afterwards stirrup, and location, the colligation of stirrup comparatively bother.
Summary of the invention
Of the present inventionly provide a kind of precast unit, solve in traditional precast concrete seam between member and connect weak deficiency, improve the prefabricated rate of precast concrete.
Described precast unit side crosses out concrete slab.While adopting this precast unit to build overall structure, the concrete slab of junction and rear pouring concrete are interlocked, and have increased the binding ability of new-old concrete, and concrete slab extend into the effect of playing shear key in rear pouring concrete, improve switching performance; Pouring concrete consumption after the concrete slab minimizing seam crossing that stretch out precast unit side, improves the prefabricated rate of structure; Behind junction, add stirrup etc. and can be positioned on concrete slab, convenient construction.Stretch out the length of concrete slab of precast unit side and thickness according to producing, stressed and construction requirement determines.In described concrete slab, be provided with reinforcing bar, guarantee its bearing capacity.
Concrete slab width is identical with precast unit thickness, or is less than its thickness; Concrete slab can be rectangle, L shaped or T shape etc.; Concrete slab or oblique vertical with precast unit side.While adopting this precast unit to be built into overall structure, can increase the effect of precast concrete plank and rear pouring concrete interlocking and the shear key of junction, improve switching performance.
Two or more concrete slabs are stretched out in described precast unit side, on described concrete slab, have hole, comprise square hole, circular hole etc.While adopting this precast unit to be built into overall structure, rear pouring concrete is full of hole, comprises mutually with precast concrete, locks together, and increases switching performance.
The concrete slab of described precast unit opposite flank is not on sustained height.While adopting this precast unit to be built into overall structure, connect the concrete slab of both sides precast unit not at sustained height place, can realize the overlap joint of concrete slab, or conveniently build rear pouring concrete.
Described precast unit one or both sides plate face stretches out concrete thin plates; While adopting this precast unit to be built into overall structure, concrete thin plates can be used as the template of junction, convenient construction.Described concrete thin plates is yi word pattern or L shaped etc., and L shaped thin plate can be used for the places such as corner.
Described precast unit biside plate face stretches out concrete thin plates, and the concrete thin plates at place, two sides is not on same plate face.
Described precast unit side is provided with embedded bar, and exposed parts is U-shaped or L shaped, with the reliability that guarantees to connect.
Described precast unit middle part has groove, and groove both sides precast unit stretches out two or more concrete slabs.Can be used for precast concrete T-section point place.
The precast unit that the present invention proposes can be used in shear wall structure or frame shear wall structure, basement, material storage container sidewall, retaining wall, tunnel, the isostructural body of wall of pipeline; Can be used for floor, roof panel, pipeline top board or base plate, tunnel top board or base plate and other horizontal force members; Also can be used for other precast units, solve the problem of switching performance deficiency between member.
The present invention compared with prior art has following advantage.
(1) industrialized level is high: precast unit production efficiency is high, quality good, saving resource, be conducive to sustainable development.
(2) while adopting precast unit of the present invention to build overall structure, the precast concrete plank of junction and rear pouring concrete are interlocked, and increase the cementation of new-old concrete, realize the effect of shear key, functional; On concrete slab, punch, precast concrete and rear pouring concrete lock together, and rear pouring concrete, through first concreting, has improved the reliability connecting.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention 1 schematic diagrames.
Fig. 2 is embodiments of the invention 2 schematic diagrames.
Fig. 3 is embodiments of the invention 3 schematic diagrames.
Fig. 4 is embodiments of the invention 4 schematic diagrames.
Fig. 5 is embodiments of the invention 5 schematic diagrames.
Fig. 6 is embodiments of the invention 6 schematic diagrames.
Fig. 7 is embodiments of the invention 7 schematic diagrames.
Fig. 8 is embodiments of the invention 8 schematic diagrames.
Fig. 9 is embodiments of the invention 9 schematic diagrames.
Figure 10 is embodiments of the invention 10 schematic diagrames.
Figure 11 is embodiments of the invention 11 schematic diagrames.
Figure 12 is embodiments of the invention 12 schematic diagrames.
Figure 13 is embodiments of the invention 13 schematic diagrames.
Figure 14 is embodiments of the invention 14 schematic diagrames.
Figure 15 is embodiments of the invention 15 schematic diagrames.
Figure 16 is embodiments of the invention 16 schematic diagrames.
Mark implication in accompanying drawing is: reinforcing bar 7 embedded bars in thin plate 5 concrete slabs that on 1 precast unit 2 concrete slab 3 concrete slabs, hole 4 precast unit plate faces stretch out.
The specific embodiment
Below in conjunction with drawings and Examples, precast unit of the present invention is described in detail.
Precast unit of the present invention is characterised in that its side crosses out concrete slab.Fig. 1 is the schematic diagram of the embodiment of the present invention 1, and one or more concrete slabs 2 are stretched out in precast unit 1 side.The quantity that concrete slab stretches out length, thickness and the concrete slab of precast unit side requires to determine according to stressed, production and construction etc., make the effect of its performance shear key, for example, the thickness of concrete slab can be not less than 20mm, and extension elongation can be not less than 20% of precast unit thickness; Concrete slab can be thin plate or slab, and the thickness of slab is greater than its extension elongation or width.Concrete thin plates can also facilitate configuration reinforcement between precast unit, is about to reinforcing bar and is shelved on concrete slab.Concrete slab can with precast unit lateral vertical, as Fig. 1; Or oblique, as Fig. 2.Concrete slab width is identical with precast unit thickness, and as Fig. 1, or concrete slab width is less than precast unit thickness, as Fig. 3.The shape of concrete slab can be rectangle, as Fig. 1, or T shape, as Fig. 4, or L shaped, as Fig. 5; Or other shapes, require to determine according to stressed, production and construction etc.In concrete slab 2, being provided with reinforcing bar 5, as Figure 15, can be U-shaped muscle, or the assembly of U-shaped muscle and the reinforcing bar vertical with U-shaped muscle, or the reinforcing bar of other configuration modes, requires to determine according to stressed, production and construction etc., to guarantee the bearing capacity, rigidity etc. of concrete slab 2.
Two or more concrete slabs are stretched out in described precast unit side, on described concrete slab, have hole; As Fig. 6, on concrete slab, have hole 3; Hole can be square hole, as Fig. 6 and Fig. 8, or circular hole, as Fig. 7; Or other shapes, require to determine according to stressed, production and construction etc.
The concrete slab of described precast unit two relative side is not on sustained height, as Fig. 9.
Described precast unit one or both sides plate face stretches out concrete thin plates 4, as Figure 10.Concrete thin plates 4 extension elongations can be identical with concrete slab 2, as Figure 10; Also can be different from concrete slab 2 length, as Figure 11; Described concrete thin plates 4 can be yi word pattern, as Figure 10 and Figure 11; Or L shaped, as Figure 12, L shaped thin plate can be used for the places such as corner.Concrete thin plates 4 also can adopt other shapes and length, according to stressed, production and construction etc., requires to determine.While adopting this precast unit to be built into overall structure, concrete thin plates can be used as the template of junction, convenient construction.
Described precast unit biside plate face stretches out concrete thin plates, and the concrete thin plates at place, two sides is not on same plate face.As Figure 13.
Described precast unit side is provided with embedded bar, and embedded bar exposed parts is U-shaped or L shaped etc.As Figure 15, precast unit side is provided with embedded bar 6, and exposed portions serve is U-shaped.The effect of embedded bar 6 is to improve the reliability connecting between prefabricated units
Described precast unit middle part has groove, and groove both sides precast unit stretches out two or more concrete slabs.Embodiment is as Figure 16, and precast unit middle part has groove, and bottom portion of groove is concrete thin plates 4, connecting groove both sides precast unit, and precast unit stretches out concrete slab 2.Can be used for precast concrete construction T shape connected node situation.

Claims (9)

1. a precast unit, is characterized in that described precast unit side crosses out concrete slab.
2. precast unit according to claim 1, is characterized in that, described concrete slab is rectangle, L shaped or T shape, or oblique vertical with precast unit side.
3. precast unit according to claim 1, is characterized in that, on described concrete slab, has hole.
4. precast unit according to claim 1, is characterized in that, the concrete slab of described precast unit opposite flank is not on sustained height.
5. precast unit according to claim 1, is characterized in that, described precast unit one or both sides plate face stretches out concrete thin plates, and described concrete thin plates is yi word pattern or L shaped.
6. precast unit according to claim 5, is characterized in that, the concrete thin plates at place, described precast unit two sides is not on same plate face.
7. precast unit according to claim 1, is characterized in that, described precast unit side is provided with embedded bar, and exposed parts is U-shaped or L shaped.
8. precast unit according to claim 1, is characterized in that, in described concrete slab, reinforcing bar is set.
9. precast unit according to claim 1, is characterized in that, described precast unit middle part has groove, and groove both sides precast unit stretches out two or more horizontal concrete slabs.
CN201310546652.0A 2013-11-07 2013-11-07 Precast concrete member Pending CN103541492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310546652.0A CN103541492A (en) 2013-11-07 2013-11-07 Precast concrete member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310546652.0A CN103541492A (en) 2013-11-07 2013-11-07 Precast concrete member

Publications (1)

Publication Number Publication Date
CN103541492A true CN103541492A (en) 2014-01-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103806595A (en) * 2014-03-10 2014-05-21 初明进 Precast concrete member
CN103912095A (en) * 2014-04-14 2014-07-09 初明进 Precast reinforced concrete member

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990013717A1 (en) * 1989-05-10 1990-11-15 Konnberg Sven Olof A method of manufacturing building elements, building element and mold herefor
CN102797307A (en) * 2012-09-09 2012-11-28 初明进 Connecting structure of prefabricated concrete wall body
CN102808450A (en) * 2012-08-28 2012-12-05 初明进 Assembled monolithic shear wall building structure and construction method thereof
CN102864855A (en) * 2012-09-19 2013-01-09 初明进 T-shaped precast concrete wall connection
CN103216032A (en) * 2013-04-17 2013-07-24 初明进 Precast concrete channel plate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990013717A1 (en) * 1989-05-10 1990-11-15 Konnberg Sven Olof A method of manufacturing building elements, building element and mold herefor
CN102808450A (en) * 2012-08-28 2012-12-05 初明进 Assembled monolithic shear wall building structure and construction method thereof
CN102797307A (en) * 2012-09-09 2012-11-28 初明进 Connecting structure of prefabricated concrete wall body
CN102864855A (en) * 2012-09-19 2013-01-09 初明进 T-shaped precast concrete wall connection
CN103216032A (en) * 2013-04-17 2013-07-24 初明进 Precast concrete channel plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103806595A (en) * 2014-03-10 2014-05-21 初明进 Precast concrete member
CN103806595B (en) * 2014-03-10 2016-11-16 初明进 A kind of precast concrete
CN103912095A (en) * 2014-04-14 2014-07-09 初明进 Precast reinforced concrete member

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Application publication date: 20140129