CN201738443U

CN201738443U - Prefabricated concrete double-overlapping beam

Info

Publication number: CN201738443U
Application number: CN2010202194723U
Authority: CN
Inventors: 黄昆; 谷明旺
Original assignee: ZHONGSHANG KUAIERJU HOUSE PREFABRICATION COMPONENT CO Ltd
Current assignee: ZHONGSHANG KUAIERJU HOUSE PREFABRICATION COMPONENT CO Ltd
Priority date: 2010-05-29
Filing date: 2010-05-29
Publication date: 2011-02-09
Anticipated expiration: 2020-05-29

Abstract

The utility model discloses a prefabricated concrete double-overlapping beam, which comprises a steel bar cage frame, wherein concrete side plates are respectively cast on the left side and the right side of the steel bar cage frame, and cavities capable of accommodating main stress ribs and concrete are formed between the two side plates. The utility model has the goal of overcoming the defects in the prior art, and provides the prefabricated concrete double-overlapping beam which has simple structure, can realize the intersection with a main beam and a sub beam, can meet the design construction requirement, and can form a whole body with the newly cast concrete.

Description

The two superposed beams of a kind of precast concrete

Technical field

The utility model relates to the two superposed beams of a kind of precast concrete.

Background technology

China advocates and greatly develops housing industrialization, needing advanced technology supports, at present the developing direction that the building main body construction technology is generally acknowledged comprises: prefabricating technique, big template technology, exempt from form removal or exempt from mould plate technique, prefabricating technique is based on the assembled integral technology, characteristics be the duration short, quality good, but is subjected to transportation, lifting restriction sometimes; Big template technology is based on cast-in-place, and characteristics are that quality is good, but limited by striking time, and often the duration is longer; Prefabricating technique has developed very ripely, but traditional prefabricated solid beam is when handling the situation that the primary and secondary beam intersects, and the structural form that can not meet design requirement often is particularly in nine-squares beam structure, require the main muscle under the beam to pass through fulcrum, adopt general prefabricated solid beam can't realize at all.At present general precast reinforced concrete beam exist member dead weight big, be easy to generate with the reinforcement location of pillar conflict, the crossing shortcoming that can not become integral body of primary and secondary beam.

The utility model content

The purpose of this utility model is in order to overcome weak point of the prior art, to provide a kind of simple in structure, and the primary and secondary beam is intersected, and satisfies the structure requirement of design, and with the two superposed beams of the integrant precast concrete of young concrete.

In order to achieve the above object, the utility model adopts following scheme:

The two superposed beams of a kind of precast concrete comprise the reinforcing bar cage, are cast with the concrete side plate respectively on described reinforcing bar cage and arranged on left and right sides, form between the described biside plate and can hold main stress muscle and concrete cavity.

The two superposed beams of aforesaid a kind of precast concrete wherein also are cast with concrete floor in described reinforcing bar cage bottom, and described concrete floor and left and right two concrete side plates form a U type groove.

The two superposed beams of aforesaid a kind of precast concrete, the washing hair side of wherein said its inner surface of concrete side plate for new-old concrete is connected easily.

The two superposed beams of aforesaid a kind of precast concrete, the washing hair side of its inner surface of wherein said concrete floor for new-old concrete is connected easily.

The two superposed beams of aforesaid a kind of precast concrete wherein can be provided with decorative layer and insulation layer at described concrete surface of side plate.

The two superposed beams of aforesaid a kind of precast concrete, wherein the two superposed beams of precast concrete are rectangle.

The two superposed beams of aforesaid a kind of precast concrete, wherein can be in described cavity pre-buried hydroelectric line.

The two superposed beams of aforesaid a kind of precast concrete, wherein can be in described cavity the part main stress reinforcing bar of pre-buried beam.

Compared with prior art, the beneficial effects of the utility model:

One, the dual-side of the two superposed beams of the utility model precast concrete can be made in factory, mould is reusable, and can realize mechanization, automated production, cast in situs beam core concrete can be saved a large amount of templates, reduces the workload of formwork form removal, can behind installation in position, steel bar stress be installed according to the design needs, can keep good globality with cast-in-place superimposed concrete, accelerating construction progress when guaranteeing component quality is saved engineering cost.

Two, the two superposed beams of the utility model precast concrete are made up of concrete and reinforcing bar, has certain rigidity and stability, certain supporting capacity is arranged, the template that has replaced cast-in-situ concrete, the extensive work of formwork, form removal when having exempted general site operation crossbeam, time saving and energy saving, have practical value, be " exempting from template " technology of a kind of advanced person;

Three, the two superposed beams of the utility model precast concrete can be widely used in general industrial and civilian construction and municipal administration, bridge engineering, be used to replace traditional prefabricated solid beam, cast-in-place solid beam, make the primary and secondary beam intersect the structure requirement of satisfying design, and can well constitute integral body.

Description of drawings

Fig. 1 is the schematic diagram of reinforcing bar cage;

Fig. 2 is the schematic diagram that the reinforcing bar cage is connected with a concrete side plate;

Fig. 3 is one of schematic diagram of the present utility model;

Fig. 4 is two of a schematic diagram of the present utility model;

Fig. 5 is one of schematic diagram of being connected with pillar of superposed beam;

Fig. 6 is two of the schematic diagram that is connected with pillar of superposed beam.

The specific embodiment

Below in conjunction with the description of drawings and the specific embodiment the utility model is described further:

The two superposed beams of a kind of precast concrete shown in Fig. 1 to 6 comprising reinforcing bar cage 1, are cast with concrete side plate 2 respectively on described reinforcing bar cage 1 and arranged on left and right sides, form between the described biside plate 2 and can hold main stress muscle and concrete cavity 3.

Can also also be cast with concrete floor 4 in described reinforcing bar cage 1 bottom in the utility model, described concrete floor 4 forms a U type groove with left and right two concrete side plates 2.At described concrete side plate 2 and the washing hair side of concrete floor 4 its inner surfaces for new-old concrete is connected easily.Can be provided with decorative layer and insulation layer on described concrete side plate 2 surfaces.

The two superposed beams of the utility model precast concrete are made up of two blocks of prefabricated concrete side plates and the good reinforcing bar of colligation, two block concrete side plates of beam can prefabricated production in factory, leave cavity between two blocks of side plates, the stirrup part of beam is imbedded in the two block concrete side plates, the two superposed beams of precast concrete lift the back at the scene and only need install bed die, do not need to install the limit mould, can be in prefabricated pair of superposed beam the pre-buried muscle of being advocated, overlap reinforcing bar at position of joints according to the code requirement colligation, concreting in cavity is with Liang Yuzhu, wall connects into the form of structure that design needs; Also can only establish stirrup and necessary bearing rod in the two superposed beams of precast concrete, behind the precast beam hoisted in position, to design the main stressed vertical muscle colligation of the beam that needs again on beam stirrup, concreting material in the cavity between two block concrete side plates makes new-old concrete be connected to become whole crossbeam.Can bury hydroelectric line underground in the beam, the two superposed beams of precast concrete can be put in order the structure of watering to one with laminated floor slab or cast-in-situ floor.

Wherein prefabricated pair of superposed beam profile of the utility model is rectangle, and described two block concrete side plates have certain thickness, can bear the pressure of young concrete.The bottom of two block concrete side plates can well contact with the bed die plane, prevents the concrete spillage of new cast in the cavity.

The two superposed beams of the utility model precast concrete can be prefabricated in the factory, mould is reusable, and can realize mechanization, automated production, a large amount of templates can be saved in the scene, reduce the workload of formwork form removal, can behind installation in position, steel bar stress be installed, can keep good globality with cast-in-place superimposed concrete according to the design needs, accelerating construction progress when guaranteeing component quality is saved engineering cost.

Claims

1. two superposed beams of a precast concrete, it is characterized in that comprising reinforcing bar cage (1), on described reinforcing bar cage (1) and arranged on left and right sides, be cast with concrete side plate (2) respectively, form between the described biside plate (2) and can hold main stress muscle and concrete cavity (3).

2. the two superposed beams of a kind of precast concrete according to claim 1 is characterized in that also being cast with concrete floor (4) in described reinforcing bar cage (1) bottom, and described concrete floor (4) forms a U type groove with left and right two concrete side plates (2).

3. the two superposed beams of a kind of precast concrete according to claim 1 is characterized in that the washing hair side of its inner surface of described concrete side plate (2) for new-old concrete is connected easily.

4. the two superposed beams of a kind of precast concrete according to claim 2 is characterized in that the washing hair side of its inner surface of described concrete floor (4) for new-old concrete is connected easily.

5. the two superposed beams of a kind of precast concrete according to claim 2 is characterized in that can being provided with decorative layer and insulation layer on described concrete side plate (2) surface.

6. the two superposed beams of a kind of precast concrete according to claim 1 is characterized in that the two superposed beams of precast concrete are rectangle.

7. the two superposed beams of a kind of precast concrete according to claim 1, it is characterized in that can be in described cavity (3) pre-buried hydroelectric line.

8. the two superposed beams of a kind of precast concrete according to claim 1 and 2, it is characterized in that can be in described cavity (3) the part main stress reinforcing bar of pre-buried beam.