Yes, park benches can absolutely be anchored directly to concrete, and it's a very common and recommended practice for permanent installation in public spaces, parks, and patios. Concrete provides an excellent, stable foundation that prevents theft, vandalism, and tipping, ensuring public safety and longevity of the bench.
Most commercial and public park benches come with pre-drilled holes in their legs or base plates specifically for this purpose. The installation typically involves marking the precise bolt locations on the concrete, drilling pilot holes using a hammer drill and a masonry bit, inserting concrete anchor sleeves (like wedge anchors or sleeve anchors), positioning the bench, and then tightening the nuts with a wrench. It's crucial to use the correct, heavy-duty anchors designed for masonry and to ensure the concrete slab itself is thick and structurally sound.
While a special, poured concrete footing isn't always necessary if an existing slab is adequate, one might be required if installing a bench on soil or gravel. For existing concrete, the key is using the proper mechanical anchors to create a secure, lasting hold that can withstand weight and weather, keeping your park bench safely and firmly in place for years to come.