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Online calculator for calculating bored pile-grillage and columnar foundations

Depending on the number and location of load-bearing walls of the building. Foundation Type
Depending on the required strength of the foundation, as well as on weather conditions. Concrete grade:
Based on soil characteristics and design load. Number of columns/piles: pcs Pile calculation
Diameter of the main part of the column/pile.
Units of measurement - millimeters.
Foundation column diameter D1:
Height of the main part of the column/pile.
Units - millimeters.
Foundation column height H1:
The diameter of the bottom extension of the post/pile.
The units are millimeters.
Foundation column base diameter D2:
Height of the bottom post/pile extension.
Units are millimeters.
Foundation column base height H2:
Foundation width.
Measurement units - meters.
Concrete strip width A:
The length of the foundation.
Measurement units - meters.
Concrete strip length B:
Height of grillage section.
Units of measurement - millimeters.
Concrete strip height C:
Width of grillage section.
Units of measurement - millimeters.
Concrete strip thickness D:
Pile foundation
Concrete strip
Total concrete strip length 26.4 meters
Concrete strip foot area 10.56 m2
The area of the outer side surface of the concrete strip 18.48 m2
Concrete volume 10.2 m3
Concrete weight 24059 kg
Load on the soil from the foundation at the base of the pillars 1.595 kg/cm2
Minimum diameter of longitudinal rebars 12 mm
Number of rows of reinforcement in the top and bottom chords on 2 rod
Minimum diameter of transverse reinforcement bars (stirrups) 6 mm
Minimum number of vertical reinforcement bars for poles 4 pcs
Minimum reinforcement diameter of pillars 6 mm
Step of transverse reinforcement bars (stirrups) for concrete strip 35 cm
Reinforcement overlap 56 cm
Total length of longitudinal reinforcement for a concrete strip with a diameter of 12mm.
(including overlapping)
110.7 meters
Total weight of longitudinal reinforcement 98 kg
The total length of the transverse reinforcement (stirrups) for the concrete strip and for the posts with a diameter of 6mm. 390.6 meters
Total weight of transverse reinforcement (stirrups) 87 kg
Minimum board thickness with supports every 1 meter 44 mm
Number of formwork boards size 15 x 600 cm 44 pcs

Information on the purpose of the calculator

Online calculator for monolithic bored pile and columnar grillage foundation is designed to calculate the dimensions, formwork, the number and diameter of reinforcement and the volume of concrete required for arranging this type of foundation. To determine the appropriate type, be sure to contact the experts.

Pile or column foundation - a type of foundation in which piles or columns are located directly in the ground itself, at the required depth, and their tops are interconnected by a monolithic reinforced concrete tape (grillage), located at a certain distance from the ground. The main difference between the columnar and pile foundation is the different depth of installation of the supports.

The main conditions for choosing such a foundation are the presence of weak, vegetative and heaving soils, as well as a large freezing depth. In the latter case, and with the possibility of driving piles in all weather conditions, this type is very relevant in areas with a harsh climate. Also, the main advantages include the high speed of construction and the minimum amount of excavation, since it is enough to drill the required number of holes, or drive in ready-made piles using special equipment.

There are many variations of this type of foundation, such as the geometric shape of piles, materials for their manufacture, the mechanism of action on the ground, installation methods and types of grillage. In each individual case, it is necessary to choose your own option, taking into account the characteristics of the soil, design loads, climatic and other conditions. To do this, you need to contact specialists who can make all the necessary measurements and calculations. Attempts to save and self-build can lead to the destruction of the building.

When filling in the data, pay attention to the additional information with the sign Additional information

The following is a complete list of the calculations performed, with a brief description of each item.

General information on the results of calculations

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