CN103526877A

CN103526877A - Precast concrete member

Info

Publication number: CN103526877A
Application number: CN201310546239.4A
Authority: CN
Inventors: 初明进
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-07
Filing date: 2013-11-07
Publication date: 2014-01-22
Anticipated expiration: 2033-11-07
Also published as: CN103526877B

Abstract

The invention relates to a precast concrete member and belongs to the technical field of precast concrete structures. One or more longitudinal concrete plates extend out from the side face of the precast concrete member. Holes are formed in the concrete plates. The reliability of connecting of concrete structure members can be 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.

Summary of the invention

Of the present inventionly provide a kind of precast unit, solve in traditional precast concrete seam crossing between member and connect weak deficiency, improve the prefabricated rate of precast concrete.

, it is characterized in that, one or more vertical concrete plates are stretched out in described precast unit side, on described concrete slab, have hole.Hole is square hole, circular hole or other shapes.While building overall structure with this precast unit, vertical concrete plate and the rear pouring concrete of junction are interlocked, and have increased the binding ability of new-old concrete; Vertical concrete plate extend into the effect of playing shear key in rear pouring concrete, improves switching performance; Pouring concrete consumption after the concrete slab minimizing seam crossing that stretch out precast unit side, improves the prefabricated rate of structure; Rear pouring concrete is full of the hole on concrete slab, comprises mutually with precast concrete, locks together, and increases switching performance.The thickness of concrete slab is less than the thickness of precast unit, and concrete slab length, the width that stretches out precast unit, thickness etc. require to determine according to stressed, production and construction etc.In described vertical concrete plate, dispose reinforcing bar.

Vertical concrete plate is stretched out at a side, both sides or the middle part of precast unit side in described precast unit side; According to stressed, making and construction requirement, determine.

The vertical concrete plate that stretch out described precast unit side is row or multiple row, and every row concrete slab comprises two or more spaced less concrete slabs; Be that every row vertical concrete plate comprises two or more little concrete slabs.While building overall structure with this precast unit, can increase the effect of shear key, improve switching performance; In convenient space between spaced concrete slab, transverse reinforcement is set, convenient construction, improves connection reliability.

Described precast unit side is provided with embedded bar, and exposed parts is U-shaped or L shaped or linear.While building overall structure with this precast unit, embedded bar exposed portions serve can increase the reliability of connection.

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.While adopting this precast unit to be built into overall structure, concrete thin plates can be used as the template of junction, convenient construction.On described concrete thin plates, have hole, can increase connection reliability.

Described precast unit middle part has groove, on groove top concrete slab, has hole.Can be used for precast concrete T shape crossed node.

Described precast unit middle part has groove, and the precast unit on described groove both sides stretches out concrete slab.

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.

Mark implication in accompanying drawing is: thin plate 5 embedded bar 6 grooves 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 stretches out one or more vertical concrete plates, on described concrete slab, has hole.Fig. 1 is the schematic diagram of the embodiment of the present invention 1.1 concrete slab 2 is stretched out in precast unit 1 side, has hole 3 on concrete slab 2.The thickness of concrete slab 2 is less than the thickness of precast unit 1, and the length of concrete slab, quantity require to determine according to stressed, production and construction etc.; The size of hole and spacing require to determine according to stressed, production and construction etc., can with its in rear pouring concrete lock together.Hole 3 can be square hole, as Fig. 1, or is circular hole, as Fig. 2, or other shape holes.Concrete slab 2 is identical with precast unit 1 length, as Fig. 1, or is less than precast unit 1 length as Fig. 3.

The vertical concrete plate 2 that stretch out described precast unit 1 side can be at a side, both sides or the middle part of precast unit side, according to stressed, production and construction etc., requires to determine.Concrete slab 2 is in a side of precast unit 1, as Fig. 5; Or concrete slab 2 is in the both sides of precast unit 1, as Fig. 7; Or concrete slab 2 is at the middle part of precast unit 1, as Fig. 1, Fig. 3; Or concrete slab 2 is respectively at both sides and the middle part of precast unit 1, as Fig. 8.

The vertical concrete plate 2 that stretch out described precast unit 1 side is row or multiple row, and every row concrete slab comprises two or more spaced less concrete slabs; Be that every row vertical concrete plate comprises two or more little concrete slabs.The vertical concrete plate 2 that stretch out precast unit 1 side is row, and every row concrete slab comprises two or more spaced less concrete slabs, as Fig. 4 or Fig. 6, or multiple row; Partly or entirely on concrete slab, have hole.While building overall structure with this precast unit, can increase the effect of shear key, improve switching performance; In convenient space between spaced less concrete slab, transverse reinforcement is set, convenient construction, improves connection reliability.

Described precast unit 1 side is provided with embedded bar 5, and exposed parts is U-shaped or L shaped or linear etc.Embedded bar exposed portions serve is linear, as Fig. 9; Or embedded bar exposed portions serve is U-shaped, as Figure 10, Figure 11.While building overall structure with this precast unit, embedded bar exposed portions serve can increase the reliability of connection.

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.In Figure 12, vertical concrete plate 2 is stretched out in precast unit 1 side, has hole 3; Side plate face stretches out yi word pattern concrete thin plates 4.In Figure 13, side plate face stretches out L-type concrete thin plates 4, and concrete thin plates 4 has hole 3.While adopting this precast unit to be built into overall structure, concrete thin plates can be used as the template of junction, convenient construction.On described concrete thin plates, have hole, can increase connection reliability.

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 6, and groove 6 bottoms are concrete thin plates 4, connecting groove both sides precast unit, and precast unit stretches out concrete slab 2.Can be used for T shape connected node etc. between precast unit.

Claims

1. a precast unit, is characterized in that, one or more vertical concrete plates are stretched out in described precast unit side, on described concrete slab, have hole.

2. precast unit according to claim 1, is characterized in that, described concrete slab is arranged at a side, both sides or the middle part of precast unit side.

3. precast unit according to claim 1, is characterized in that, row or multiple row vertical concrete plate are stretched out in described precast unit side, and every row concrete slab comprises two or more spaced less concrete slabs.

4. 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 or linear.

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, on described concrete thin plates, has hole.

7. precast unit according to claim 1, is characterized in that, described precast unit middle part has groove, on groove top concrete slab, has hole.

8. precast unit according to claim 1, is characterized in that, described precast unit middle part has groove, and described groove both sides precast unit stretches out out pertusate concrete slab.