On the basic shape of equipment with legs
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I need to specify the foundation requirements for a vertical small tank (with a diameter of 2 meters and 3 legs). My question is: 1. Should three separate foundations be used, or is it better to use one large foundation? 2. If it is divided into 3 basic sections, is a circular shape better or a square shape better? This post was last edited by hutom123 on 2009-3-24 16:48]
It seems that having a solid foundation is beneficial; the stress distribution across the several supports is consistent, which makes it relatively safer!
1. A base in a circular shape is required. 2. If divided into three parts, each base will be square; the structure can arrange these three bases on one pedestal to ensure even settlement.
A large circular foundation is provided, on which three steel plates are pre-embedded according to the locations of the equipment legs, to facilitate adjusting the position of the equipment and securing it in place.
It is best to use three hoists, each equipped with embedded steel plates; using one large circular hoist makes operation inconvenient after the equipment is installed, and it also results in higher costs
Since the diameter of the equipment is not large, a circular base is preferable, as it ensures uniform settlement
The following situations are recommended: 1. If there is a drainage facility at the bottom of the small tank, it is recommended to use three small bases. Because you need to leave enough headroom to install drain valves, bypasses, etc. If there is a combined foundation, then the legs may need to be made taller. 2. A combined circular foundation, or pancake, is relatively more stable. However, the drain valve cannot be installed directly on the equipment outlet; it is recommended to use an elbow first, and then install the valve on a horizontal pipeline. However, it should be noted that there is a dead leg in front of the valve. 3. It is possible to ask the civil engineering team to create a joint foundation, but the part of the foundation that is above ground level should be divided into three small cubes. 4. It is standard practice in our design institute for such static equipment to use civil engineering-installed anchor bolts as foundations (of course, the size of these bolts is determined based on the specifications provided by the equipment manufacturer), rather than the embedded steel plates mentioned above. There is indeed a bottom plate on the legs of the equipment. Maybe different design institutes* have different practices.
There was an error, I’m sorry. This post was last edited by jason_pan on 2009-2-19 at 16:53.]
There was an error, I’m sorry. This post was last edited by jason_pan on 2009-2-19 at 16:53.]
There was an error, I’m sorry. This post was last edited by jason_pan on 2009-2-19 at 16:53.]
There was an error, I’m sorry. This post was last edited by jason_pan on 2009-2-19 at 16:53.]
An error occurred, sorry. This post was last edited by jason_pan on 2009-2-19 16:52.]
An error occurred, sorry. This post was last edited by jason_pan on 2009-2-19 16:52.]
The plan with 3 small foundations is good. It is best to leave 100X100 square holes for secondary grouting
The large cake looks too clumsy, especially when the base level is relatively high; in practice, three small bases are used more often.
Such a device foundation is usually constructed using three square foundations, which gives a good appearance and saves materials.
A diameter of 2 meters is quite large; it is recommended to use three smaller foundations. If the diameter is less than 1.5 meters, a monolithic foundation can be considered.