Prefabricated foundation

FIELD: construction.

SUBSTANCE: invention relates to construction, in particular, to erection of prefabricated foundations of industrial and civil buildings. The prefabricated foundations includes flat trapezoidal boards that are mutually crossing. Crossing of two and more boards may be made at equal angles between boards, also with reduction of the angle in direction of high moment loads. Boards rest onto a cut in a support board. Trapezoidal boards are joined via a vertical slot in the middle part or made as displaced aside with lower moment forces, and a column base has slots for fixation.

EFFECT: increased bearing capacity, reduced material intensity and labour intensiveness.

2 cl, 6 dwg

 

The invention relates to the construction, in particular to the erection of prefabricated foundations of civil and industrial buildings.

Known prefabricated Foundation glass type under mnogovetvevye column made of composite of two types of mutually intersecting at right angles flat plates mounted vertically and having cut-outs along the axes of the branches of columns [1].

The design of the base has insufficient bearing capacity.

The closest technical solution to the proposed Foundation is prefabricated Foundation comprising a base plate located here four separate edges of the plates with slots for a split retainer ring to secure the plates during Assembly [2].

The disadvantage is the complexity of manufacturing elements, the complexity of the installation works.

The purpose of the invention: reducing the complexity, increase the bearing capacity, reduce material consumption.

This objective is achieved in that the prefabricated Foundation consists of a base plate with a groove for fixing two or more vertical intersecting flat trapezoidal plates and allowed to run at equal angles between the plates, and with decreasing angle in the direction of the large torque loads, the junction of the trapezoidal plates is made through a vertically positioned slot in the middle part and the and made shift to the side with less torque effort all upper trapezoidal plates made of composite in height and smaller in size. Podkolodny has grooves for fixing.

In Fig.1 shows a view of the basement from the top of Fig.2 is a vertical section of the Foundation b-B of Fig.3 is a vertical section of the basement In Fig.4 is a vertical section of the Foundation a-a of Fig.5 is a view of the upper trapezoidal plate; Fig.6 is a view of the lower trapezoidal plate.

Prefabricated Foundation includes a base plate 1 with a slot 7 for fixing a flat vertical intersecting plates 2 with the lower slot 4 and plate 3 with the top notch 5 and podkolonnik 6 installed in a groove 8 in the upper part of the basement.

The technology works on installation of the Foundation is carried out with the following sequence.

On the prepared substrate is mounted in a known manner precast concrete base plate with a groove 7. At her with a crane mounted trapezoidal plate 3 slot 5 slot 7, then perpendicular to it is mounted trapezoidal plate 2 with the slot 4 in the groove 5 and 7. The subsequent installation of trapezoidal plates similar. In the upper part of the basement is set Podkolodny with a groove for fixing 8.

The proposed design of the base allows to reduce the complexity of manufacturing and significantly reduce the time of installation works, will reduce the consumption of materials and to increase the bearing capacity.

Sources of information

1. USSR author's certificate No. 140751, CL 84 c2, 1961.

2. USSR author's certificate No. 647407, CL E02D 27/42, 1977.

1. Prefabricated Foundation, which includes vertical intersecting flat trapezoidal plate, characterized in that the intersection of two or more plates can be performed at equal angles between the plates, and with decreasing angle in the direction of the large torque loads, plate supported on the recess in the base plate, the junction of the trapezoidal plates is made through a vertically positioned slot in the middle part or performed with a shift towards less torque effort, and Podkolodny has grooves for fixing.

2. Prefabricated Foundation under item 1, characterized in that all of the overlying trapezoidal plates made of composite in height and smaller in size.



 

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