CN2196652Y

CN2196652Y - Precasting footing device

Info

Publication number: CN2196652Y
Application number: CN 94210070
Authority: CN
Inventors: 赖坤亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-23
Filing date: 1994-04-23
Publication date: 1995-05-10
Anticipated expiration: 2004-04-23

Abstract

The utility model relates to a precasting footing device, comprising an RC seat body and an RC column body which are provided with steel bars inside. A precasting foot of a square column shape, or a central column shape, or a side column type or other similar shapes can be integrally formed by precasting molding. The RC seat body is positioned at the bottom base part of the precasting foot, and the RC column body which is positioned on the surface of the RC seat body can be vertically extended upwards; at least more than one layer of netted steel bars are arranged inside the RC seat body, and the RC column body is composed of a plurality of stirrups which are circularly connected with a plurality of longitudinal steel bars; the bottom end of each longitudinal steel bar is provided with a bending section which is welded on the netted steel bar of the seat body, and the upper end of the longitudinal steel bar is screwed with the screw threads of-shaped iron. The utility model can realize dry type construction molding, can guarantee quality, and can enhance the strength of the entire structure, being suitable for various steel frame engineering.

Description

Precasting footing device

The relevant a kind of precasting footing device of the utility model, be meant a kind of footing that is exclusively used in various steelframe engineerings especially, place beyond can be in the building site is by the moulding of dry construction precasting, delivering to required building site again is the footing rapid construction of steelframe engineering, can guarantee quality, save the duration, and can reach normalization, standardized construction.

The steelframe footing is one of Foundation Design important in the various steel frame building things, for example can be used as basic industrial building, garage, welcome center, advertising signboard, street lamp pedestal etc. with steelframe, whether the stability of whole building and safety need the construction of dependence steelframe footing firm entirely.Traditional steelframe footing construction, mostly according to following program: at first need bury fender pile underground all around, excavate the building site again until the degree of depth that is large enough to hold each footing, again in the site operation mode in the building site, follow closely solid plate, grouting, dry back form removal, and make the footing moulding one by one of steel frame building thing.

Above-mentioned traditional steelframe footing construction has many distinct disadvantage, thereby easily the steel frame building thing is had misgivings on safety and cost.For example easily make the building site confusion in the building-site construction, the operation of nail solid plate, grouting, dry back form removal expends time in, and also can be subjected to weather effect, thereby man-hour and cost are increased; Aspect construction quality easily because of different constructors have different quality, and can not unified specification, these all easily cause steelframe footing quality instability, can not guarantee programming, and increased considerably the construction cost of building thing.

Moreover, the general normal employing low-intensity design of the RC footing of site operation, and during because of construction mix, maintenance all wayward, usually can't reach the intensity of design; In addition, site operation often forms the footing skew because of the error of construction, need the position with backing plate correction bolt, so that footing can not be concentric with steelframe, causes eccentric moment, thereby makes footing bear the load intensity reduction.

Another distinct disadvantage is, has no the value of later use at building-site construction molding steelframe footing, wholely builds or during newly-built steelframe, the footing of these RC materials must be destroyed, and this does not conform to economy and environmental requirement yet.

Therefore, main purpose of the present utility model is for providing a kind of precasting footing device, place precasting moulding beyond can be in the building site, delivering to the building site again is the footing rapid construction of steelframe engineering, thereby can make the building materials unification in building site, easy constructionization, guarantee that site safety is clean and tidy, once construction is finished and is got final product the backfill ground, and carries out next steel structure engineering immediately, can save time in a large number, and not be subjected to weather effect fully and can reduce cost.

The footing of precasting moulding is not subjected to environmental limitations can adopt high strength design, when in factory, constructing, mix, maintenance all are strict with, can reach the intensity of design, and when the precasting moulding, the bolt location can be adjusted to right-on position, and make footing meet requirement of strength fully, guarantee quality.

Another purpose of the present utility model can be cast the different shaped shape by requirement of engineering in advance for a kind of stay-in-grade precasting footing device is provided, and the moulding of dry construction precasting can be controlled quality, and unified specification is made in batch and can be supplied immediately, to guarantee programming.

A purpose more of the present utility model, for a kind of precasting footing device for later use is provided, whole build or during newly-built steelframe excavates the ground footing of slinging and cleans slightly, is an intact reusable steelframe footing, meets economy and environmental requirement.

According to the utility model precasting footing device, comprise by inside and be provided with the RC pedestal of reinforcing bar, the RC cylinder that inside is provided with reinforcing bar, with the multiple pattern of precasting molding mode one bodily form, for example become the precasting footing of corner post type, middle column type, side column type, it is characterized in that this RC pedestal is a prismatoid.Be positioned at the base portion of precasting footing, and this RC cylinder is positioned at and stretches on vertical on the surface of RC pedestal, what be located at the one jiao of end in pedestal surface is corner post type footing, be located at the middle column type footing that is in centre position, pedestal surface, be located at the pedestal surface side for side column type footing, in the RC of each precasting footing pedestal inside, at least be provided with the above steel mesh reinforcement of one deck, enclosed many longitudinal reinforcements that connect in the setting of the inside of this RC cylinder by many stirrups, the bottom of this each longitudinal reinforcement, establish bending segment respectively, on the steel mesh reinforcement that is welded in RC pedestal inside, make to be connected in one, and the upper end of this each longitudinal reinforcement extend out to the tip exterior of RC cylinder respectively, form thread segment with thread cutting, in order to the shaped steel that spins.

Following conjunction with figs. describes concrete structure of the present utility model, effect and and embodiment in detail.

Fig. 1 is the precasting footing structural representation of the utility model corner post type.

Fig. 2 is the precasting footing structural representation of column type in the utility model.

Fig. 3 is the precasting footing structural representation of the utility model side column type.

Fig. 4 is the enforcement illustration of the utility model in conjunction with shaped steel.

Shown in Fig. 1～3, precasting footing device of the present utility model, comprise by inside be provided with reinforcing bar RC pedestal 11, with the inner RC cylinder 12 that is provided with reinforcing bar, with the precasting footing 10 of the integrally formed corner post type of precasting molding mode (as Fig. 1), middle column type (as Fig. 2), side column type (as Fig. 3) or other analogous shapes.

As shown in FIG., this each precasting footing 10 is made of RC pedestal 11 and RC cylinder 12, and this RC pedestal 11 is positioned at the base portion of precasting footing 10, is a prismatoid, RC cylinder 12 is located on the surface of RC pedestal 11 and is stretched on vertical; If cylinder is located at the one jiao of end in pedestal surface, be the corner post type footing shown in Fig. 1, if cylinder is located at centre position, pedestal surface, be the middle column type footing shown in Fig. 2, if cylinder is located at the side on pedestal surface, be the side column type footing shown in Fig. 3.

This each precasting footing 10, in the RC of precasting footing 10 pedestal 11 inside, at least be provided with the above steel mesh reinforcement 13 of one deck, inside in this RC cylinder 12, setting is by the many stirrups 14 many longitudinal reinforcements 15 that connect that enclose, the bottom of this each longitudinal reinforcement 15, establish bending segment 16 respectively, on the steel mesh reinforcement 13 that is welded in RC pedestal 11 inside, make to be connected in one, and make the upper end of this each longitudinal reinforcement 14 extend out to the tip exterior of RC cylinder 12 respectively, and thread cutting forms thread segment 17, be the shaped steel 18 that can spin, such as shown in Figure 4.

By finding out the characteristic that this device is constructed at the scene among Fig. 4, the place construction precasting moulding of the required precasting footing in building site beyond in the building site, thereby make the building materials unification of building-site, and can guarantee that site safety is clean and tidy, each precasting footing is embedded in the precalculated position, and once construction is finished and is got final product the backfill ground, and the structural steelwork that shaped steel can be installed immediately, can save time in a large number, make the complete weatherproof of construction of precasting footing.

Therefore, precasting footing device of the present utility model has following advantage at least on the constructing operation of reality:

1. can adopt the high-strength structure design.

2. product diversification is fit to various steelframe engineering.

3. moulding is fast, can supply in a large number, ensures programming.

4. inexpensive, can reduce construction cost.

5. product can reach the normalization standardization.

6. but secondary uses, and is continuous high with being worth, compliance with environmental protection requirements.

Claims

1, a kind of precasting footing device, comprise that the RC pedestal, the inside that are provided with reinforcing bar by inside are provided with the RC cylinder of gong muscle, with the multiple pattern of precasting molding mode one bodily form, for example become the precasting footing of corner post type, middle column type, side column type, it is characterized in that this RC pedestal is a prismatoid.Be positioned at the base portion of precasting footing, and this RC cylinder is positioned at and stretches on vertical on the surface of RC pedestal, what be located at the one jiao of end in pedestal surface is corner post type footing, be located at the middle column type footing that is in centre position, pedestal surface, be located at the pedestal surface side for side column type footing, in the RC of each precasting footing pedestal inside, at least be provided with the above steel mesh reinforcement of one deck, enclosed many longitudinal reinforcements that connect in the setting of the inside of this RC cylinder by many stirrups, the bottom of this each longitudinal reinforcement, establish bending segment respectively, on the steel mesh reinforcement that is welded in RC pedestal inside, make to be connected in one, and the upper end of this each longitudinal reinforcement extend out to the tip exterior of RC cylinder respectively, form threaded section with car system thread, in order to the shaped steel that spins.