Pile foundation issues?
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Steel platform shape; the foundation uses precast reinforced concrete hollow tubular piles. Why are the distances between precast hollow tubular piles sometimes 750 and sometimes 1500? And why do they come in rectangular, square, and triangular shapes?
It is related to the loads on buildings and the foundations of ground-based equipment; it’s the first time seeing a triangle
This should be a floor plan, just a basic diagram. To get a comprehensive understanding, one should look for diagrams related to him. To reduce costs while maintaining strength, it is possible to replace circles with triangles, or to use pipes and other conduits in place of those elements that require space.
What you see is the shape of the pile cap; under each cap, there are 2, 3, or 4 pipe piles. From a design perspective, the number of pipe piles and their layout are determined through calculations, taking into account factors such as the number of platform levels, the load to be carried, structural requirements, and soil bearing capacity.
The spacing between piles is actually 1500 and 750; what you see is the distance from the column to the pile.