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foundation

A foundation and relative ground technology, applied in the direction of basic structure engineering, architecture, building construction, etc., can solve the problem of mechanical resistance of damaged structures, and achieve the effect of limited cost and streamlined superstructure

Active Publication Date: 2021-10-29
I·特奥保德利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Apparently, during earthquakes, such structures are subjected to high stresses, which impair the mechanical resistance of the structure

Method used

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Embodiment Construction

[0045] Referring to the accompanying drawings, there is disclosed a twin raft foundation of the present invention, generally indicated by reference numeral (1).

[0046] refer to figure 1 and figure 2 , to install the twin raft foundation (1) according to the invention, a depression (20) of soil (2) is made and lean concrete (21) is cast in the depression (20), as in the building systems currently used.

[0047] Then, the lower raft (3) of reinforced concrete is manufactured on lean concrete (21); for example, in the case of a house with 2-3 floors, the lower raft has a thickness of about 30-40 cm. The upper surface (30) of the lower raft (3) is smooth, planar and level. Advantageously, a smoothing material, such as cement mortar, is applied on the upper surface (30) of the lower raft to repair inhomogeneities that may have occurred when casting the lean concrete (21).

[0048] Advantageously, the lower raft (3) may be shaped as a tank with a peripheral wall (31) raised re...

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Abstract

A double raft foundation (1) for a building comprising: a lower raft (3); a layer (4) of a material with a low coefficient of friction applied on the lower raft (3); a platform comprising plates of a material with a low coefficient of friction (5), slidably arranged on the layer (4); the upper raft connected with the plate platform (5), and the superstructure connected with the upper raft (6); wherein, the upper raft (6) is in such a set on the lower raft in such a way that in the event of an earthquake, the plate (5) of said platform of the upper raft can slide slidingly on said layer (4) of the lower raft, allowing the upper raft to move relative to the lower raft .

Description

technical field [0001] This patent application for industrial invention relates to a twin raft foundation. Background technique [0002] Raft foundations are by far the most common type of foundation used for small, medium and large buildings. [0003] In the case of buildings with 2-3 floors, after excavating the soil, about 20 cm of lean concrete is cast and the working surface is obtained. Then, a raft of approximately 50-60 cm in height (for a structure with 2-3 floors) is cast directly on the working surface made of lean concrete. Pillars and load-bearing structures are built on rafts. [0004] Apparently, during earthquakes, such structures are subjected to high stresses, which impair the mechanical resistance of the structure. [0005] At present, even though all man-made building structures are subject to the dynamic stresses generated by earthquakes, only some of them are protected against earthquakes by various structural control devices, which can be divided in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/34
CPCE02D27/34E02D2250/0023E02D2300/0006E02D2300/002E02D2300/0029E04H9/0215
Inventor I·特奥保德利
Owner I·特奥保德利