CN2563189Y

CN2563189Y - Cast-in-place concrete sandwich pile structure

Info

Publication number: CN2563189Y
Application number: CN 02232467
Authority: CN
Inventors: 冯双永
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-22
Filing date: 2002-04-22
Publication date: 2003-07-30
Anticipated expiration: 2012-04-22

Abstract

The utility model discloses a cast-in-place concrete sandwich pile structure and belongs to the building construction accessory field. The cast-in-place concrete sandwich pile structure comprises a concrete pile and an internal reinforcing cage, and is characterized in that: a frame reinforcing core is arranged in the pile and is fixedly arranged in the reinforcing cage, a plurality of sections of short cylindrical foam bodies surround the periphery of the frame reinforcing core to form a long cylindrical foam body to replace the partial concrete in the reinforcing cage; the concrete at the center of the pile is replaced with the foam plastic, so the concrete can be approximately saved between 30 percent and 75 percent; the utility model is similar to the solid concrete pile on the bearing capability and shock-resistant ability.

Description

Cast-in-situ concrete sandwich pilework

(1) technical field

The utility model belongs to building operations accessory field, specially refers to a kind of structure of cast-in-situ concrete sandwich stake of using in building construction process.

(2) background technology

On the building operations building site, concrete stanchion as basic building block, it is indispensable member in the construction, the bearing capacity of stake is decided by two factors of bearing capacity that pile shaft material and soil provide, supporting capacity is to get its minimum value, so the intensity of pile concrete has generally only brought into play 25%～70%, the concrete of a great deal of is not used, this has just caused the serious wasting of resources, though the domestic experience that has accumulated a lot of reduction Master Cost costs is selected the material that reduces strength grade of concrete for use when for example driving piles at present, perhaps adopts ways such as hollow pile without hesitation, with the economization concrete, but these ways exist inevitable defective simultaneously, and that is exactly that technology is loaded down with trivial details, the DeGrain that reduces cost, wish has a kind of new element structure to come out for this reason, to remedy the deficiency of original member.

(3) summary of the invention

The technical issues that need to address are, overcome existing concrete cast-in-situ pile waste concrete resource, can not give full play to its effect or utilize lower intensity level concrete to increase the loaded down with trivial details and many defectives such as not obvious that reduce cost of technology again, and redesign a kind of abundant saving concrete resource, do not influence the pilework of intensity again, remedy above defective.The purpose of this utility model, rely on following technical scheme to realize, a kind of cast-in-situ concrete sandwich pilework, comprise concrete pile body and inner reinforcing cage, it is characterized in that, in the stake skeleton reinforcing steel bar core is arranged, it is fixedly mounted in the reinforcing cage, around skeleton reinforcing steel bar core periphery, encircle a section short and small cylindrical foam body, forming a long cylindrical foam body, removing to replace part concrete in the reinforcing cage, reinforcing cage is provided with a skeleton reinforcing steel bar positioning bar by colligation, spot welding mode horizontal direction is fixed to the reinforcing bar core on the reinforcing cage, the position of this cylindrical foam body not necessarily is in whole central axis, and needing because of constructing also can be amesiality as close tensile region one side, described cylindrical foam body also can be with husky, the stone bag replaces putting into pile body.

The beneficial effects of the utility model are owing to replace the concrete at pile center place with foamed plastics, therefore can save concrete about 30%～75%, and are the same with the solid concrete stake aspect ability to bear and impact resistance.

(4) description of drawings

Fig. 1 is a cast-in-situ concrete sandwich pilework schematic diagram

Fig. 2 is the AA sectional drawing of above-mentioned sandwich stake

Fig. 3 is another embodiment of this structure

(5) specific embodiment

With reference to Fig. 1,2; expression the utility model concrete sandwich pilework; wherein 1 is a skeleton reinforcing steel bar core at pile body center; it is tied up on reinforcing cage 2 regularly by a skeleton reinforcing steel bar positioning bar 4; outside around skeleton reinforcing steel bar; encircling a section short and small cylindrical foam body; form a long cylindrical foam body 3; the internal and external parts of reinforcing cage is respectively the concrete casting layer; outermost is a concrete cover 5; Fig. 3 represents, need in construction stake interior cylindrical foams deflection tensile region, thereby the cylindrical foam body is not or not the center.

Claims

1, a kind of cast-in-situ concrete sandwich pilework, comprise concrete pile body and inner reinforcing cage, it is characterized in that, in the stake skeleton reinforcing steel bar core is arranged, it is fixedly mounted in the reinforcing cage, around skeleton reinforcing steel bar core periphery, is encircling a section short and small cylindrical foam body, form a long cylindrical foam body, remove to replace part concrete in the reinforcing cage.

2, concrete sandwich pilework according to claim 1 is characterized in that, reinforcing cage is provided with a skeleton reinforcing steel bar positioning bar, can in the horizontal direction the reinforcing bar core be fixed on the reinforcing cage by colligation, spot welding mode.

3, concrete sandwich pilework according to claim 1 is characterized in that, the cylindrical foam body also can change sand, stone bag into for it.