The invention relates to a heavy-load vehicle comprising at least two partial vehicles, namely a frontmost partial vehicle and a rearmost partial vehicle, said frontmost partial vehicle having connecting means, and said rearmost partial vehicle having counter-connecting means adapted and configured for cooperating with said connecting means, one of said connecting means and said counter-connecting means including an inner telescopic member guided in a hollow outer telescopic member in a telescoping manner. According to the invention said hollow outer telescopic member is integrally formed by a tubular or box-shaped central part of a partial vehicle frame of one of the partial vehicles, said hollow outer telescopic member and said inner telescopic member cooperating therewith being parts of the same partial vehicle.