FR2627789A1 - Prefab. foundation block for building post - has cast concrete shell with central post hole and metal handling loops foldable below surface after installation - Google Patents

Abstract

The foundation block has a central opening (4) to receive a post etc., opening into the top surface (3) of the block. At least one other cavity (6) is formed in the top surface for filling with ballast material (7). The block includes lifting handles (8) arranged to project above its top surface but capable of being folded laterally to below the surface level. These comprise metal hoops embedded in the concrete of the block, with their upper portions housed in side recesses (11). ADVANTAGE - Simplified handling and reduced pre-installation weight.

Description

 The invention relates to a precast concrete support block for poles, used in particular in the construction of metal hangars.

The support posts of metal sheds must be securely fixed in or on the surface of the floor, so as to ensure the stability and resistance of
The building that they support both in tension and in compression, whatever the stresses that it can undergo. In this regard, it is known to produce in situ support blocks for posts constituting foundations. These blocks are generally produced by pouring concrete directly into formwork designed so that the molded blocks present a receiving housing for a post. These forms must be installed both in sealing wells and on the ground surface. In a case like in
The other is that it is necessary to carry out an important work of preparation consisting in particular in the construction of the formwork.

 The main object of the invention is to remedy this situation by producing a support block of precast concrete which is easily transportable and whose implementation is quick and economical.

 For this purpose, the invention relates to a concrete support block for a post comprising a receiving housing opening onto an upper face of the block comprising at least one filling cavity which also opens onto the upper face of the block. Thus, a considerably lightened support block is obtained, which can be easily transported and the implementation of which requires only a setting up operation and a concrete pouring operation in the filling cavity.

 According to an advantageous characteristic of the invention, this support block comprises handling means projecting upward relative to the upper face of the block and arranged to be foldable laterally, these handling means comprising metal loops embedded in the concrete over part of their height and the block with vertical notches adjacent to the metal loops on a portion of the part of the loop embedded in the concrete. Thus, the support block can be easily manipulated using lifting means and, once placed in a dace and the handling loops folded sideways, the support block includes anchor and support loops for Longrines s 'extending from one block to another, for example.

 Preferably, the through holes for at least one post connecting member extend horizontally through at least two fox walls of the receiving housing, these passing holes being arranged at different levels to receive a connecting rod. associating the post with the support block at the desired height.

 Finally, according to an advantageous embodiment, the support block comprises a base projecting laterally at its lower part.

Other characteristics and advantages of the invention will appear on reading the following description of a nonlimiting embodiment in conjunction with the accompanying drawings, among which:
- Figure 1 is a sectional view along the line
II of FIG. 2, dwun-block of support according to the invention,
- Figure 2 is a top view of the support block according to Figure 1.

 Referring to the figures, we see designated under the general reference numeral 1 a support block for a support post, for example for a metal shed.

 This support block is a prefabricated block made by concrete molding. The support block has a generally parallelepiped shape and has a base 2 in its lower part by which it can rest with a wide seat on the ground or, if necessary, in a sealing well.

 The support block i comprises, opening onto its upper face 3, a receiving housing 4 for receiving the lower end of a support post 5.

On either side of the receiving housing 4, the block has two filling cavities 6 also opening onto the upper face 3 of the block, and intended to receive a heavy product 7, such as for example concrete.

The receiving housing 4 has a section of substantially rectangular shape and is delimited by four opposite walls in pairs and a bottom. Note that the shape of the receiving housing depends essentially on the shape of the end of the post to receive. The receiving housing 4 also includes passage holes 10 which extend horizontally through two walls facing the housing. The through holes are arranged so as to be able to introduce a connecting member of a post into the housing. The connecting member is, for example, an anchoring bar, not shown, which passes right through the
Looement of reception as well as the end of the post to be fixed.

As can be seen in FIG. 1, the through holes are made at different heights relative to the base, which makes it possible, if necessary, to compensate for a lack of horizontality of the surface on which a set of blocks rests. Support.

 In FIG. 2, it can also be seen that the filling cavities 6 have a cross section of rectangular shape. The filling cavities 6 have dimensions such that the block has a maximum vacuum volume taking into account the manufacturing constraints. Thus, the considerably lightened block can be easily transported to the installation site. Once The block placed on the ground in a desired location; or else in a previously prepared sealing well, the filling cavities will be filled with a heavy product in order to ballast the support block sufficiently so that it meets the weight requirements necessary to support the post that it will receive.

The block 1 further comprises four metal handling loops -8, each embedded in a side wall 9 of the block 1 and arranged projecting ver-s The top relative to the upper face 3. In this position, The loops 8 serve when lifting the block. The loops 8 can also be folded down laterally in the direction of the arrow F (FIG. 1) and thus come into the position shown in dashed lines in FIGS. 1 and 2. For this purpose,
The loops are constituted by steel rods bent in order to have an inverted U shape and, the block 1 comprises in the upper middle part of each wall
Lateral 9 a vertical notch 11 which laterally releases the corresponding loop 3 over part of its height.

These vertical notches are arranged opposite two by two.

Thus arranged, the loops can be twisted to be folded laterally at the rim 12 of each vertical notch 11. After folding the loops, the support block has four horizontal support members ready to support the end of a sill ( not shown) extending for example between two support blocks according to the invention.

 Of course, the invention is not limited to the embodiment described, and it is possible to make variant embodiments without departing from its scope. In particular, other block shapes can be provided, for example a block having a generally cylindrical or frustoconical shape. It is also possible to provide, as receiving housing and as filling cavity, a series of cavities of different sizes which correspond to the sizes of the posts commonly used which can serve, depending on the case, as receiving housing, or else filling cavity.

Claims (6)

 1. Concrete support block (1) for post  comprising a receiving housing (4) opening onto a  upper face (3) of the block (1), characterized in that it  comprises at least one filling cavity (6) also opening onto the upper face (3) of the block (1).  2. Block according to claim 1 characterized in  what it comprises handling means (8) projecting upwards relative to the upper face (3) of the block and arranged to be foldable laterally.  3. Block according to claim? -characterized in  that the handling means (8) comprise metal loops embedded in the concrete over part of their height and in that the block (1) has vertical notches (11) adjacent to the metal loops on a portion of the part of The loop embedded in concrete.  4. Block according to one of claims I to 3 characterized in that passage holes (10) for at least one post connecting member extend horizontally through at least two walls facing the receiving housing ( 4).  5. Support block according to claim 4 characterized in that it comprises several through holes  (10) arranged at different levels.  6. Support block according to one queLconque of the preceding claims characterized in that it comprises a base (2) projecting laterally from the block (1).