Foundation

 

The invention relates to the field of construction area foundations-shells and can be used in industrial and civil construction. The Foundation, including shell, laid on the subgrade, characterized in that the shell is made of thin-walled reinforced concrete zero or positive Gaussian curvature ratio boom lift spanand the ratio of section height to spanand limited reference circuit in the form of a ring or cross-beams, the reinforcement shell is made of single-layer steel or synthetic valves, connected by an anchor in the body of the concrete support contour. The technical result of the invention is to create effective designs areal foundations with regard to the reduction of the total consumption of materials and the cost of their erection. 4 Il.

The invention relates to the field of construction area foundations-shells and can be used in industrial and civil construction.

Known areal foundations-shell, used in industrial and civil construction [1]. A quirk of the tov-shells primarily in compression. The disadvantage of such designs is the difficulty of forming the Foundation of foundations and the introduction of additional elements for perception spacer efforts, as well as significant additional costs on the flooring.

The closest to the essence and the achieved technical result is a Foundation that includes absolutely flexible concave shell of high-strength fabric laid on the subgrade [2]. The ends of the shell are attached to the supports.

The disadvantage of this design is a significant deformation of the membrane due to the low modulus of elasticity of high-strength fabric, which leads to excess precipitation buildings and complicates the construction of floors. It is assumed that the thrust from the shell perceived by friction forces at the contact bearing - ground.

The purpose of the invention is the creation of an effective area of the foundations of compliance with specified reliability advancements design.

The solution of the stated technical problem is achieved by the fact that the Foundation, including shell, laid on the subgrade, according to the invention, the shell is made of thin-walled reinforced concrete zero or positive Gaussian curvature atand limited reference circuit in the form of a ring or cross-beams, the reinforcement shell is made of single-layer steel or synthetic valves, connected by an anchor in the body of the concrete reference path.

The invention is illustrated graphically where:

in Fig.1 shows a General view of the basement membrane of zero Gaussian curvature;

in Fig.2 - General view of the basement membrane of positive Gaussian curvature;

in Fig.3 - General view of the basement membrane, made in the form of a system of cross-beams;

in Fig.4 is a fragment of the basement-membrane, made in the form of the reference path.

This Foundation is presented in the form of gentle shell 1, limited ring 2 or the cross-beams 3. In this constructive form the shell on soil Foundation 4 works predominantly in tension. The shell 1 is of thin-walled reinforced concrete zero or positive Gaussian curvature ratio boom lift spanand the ratio of section height to spanand limited reference circuit 2, 3 in the form of a ring or cross-beams. As a supporting shell element 1 used in the definition of the fiber (not shown) with a high modulus of elasticity. Raspor in the design is reduced due to its final hardness. The perception of spreading at the expense of joint implementation of the frictional forces on the contact sheath - ground, bending rigidity of the support loop 2, 3 in the horizontal plane and the resistance of the soil along the reference path 2, 3. Santriani valve (not shown) of the shell 1 is made in the body of the concrete reference contours. Reinforcement membrane is a single layer.

Sources of information

1. Terior A. N. Design and construction of economical designs of foundations. Kiev, Budivelnik, 1975, 200 S.

2. A. C. 715722 M CL E 02 D 27/01. Foundation. O. C. Snezhko No. 2598229/29-33. Appl. 10.03.78, publ. 25.02.80.

Claims

The Foundation, including shell, laid on the subgrade, characterized in that the shell is made of thin-walled reinforced concrete zero or positive Gaussian curvature ratio boom lift spanand the ratio of section height to spanand limited reference circuit in the form of a ring or cross-beams, the reinforcement shell is made of single-layer steel or synthetic arm is

 

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