The paper points out the ultimate load of concrete thick pile cap with truss model at its bottom is highest based on the tests of four reinforced concrete piles caps with different forms of reinforcements of four piles 通过对4个底部配筋形式不同的桩基厚承台进行试验研究,表明底部钢筋按析架模型配筋的桩基承台承载力最高。