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在一般工业与民用建筑的基础设计中,当地基较为薄弱时,往往采用不同类型的桩基基础,通常的形式是“桩、承台、钢筋混凝土基础梁”或条形基础下按一定的方式(如梅花式)布置基桩。桩的作用往往只是为了强化地基,基础梁上的墙体也只当作外荷载考虑。这种桩基方案,一般来说,都不可避免地要增加投资,影响经济指标。我们认为,地基打桩不应单纯为了强化地基,把桩的作用同上部结构的受力状况割裂开来,而应把桩同上部结构视为一个整体,共同发挥作用;如果桩身断面尺寸已能满足承载能力要求时,桩头承台可以取消;在一般民用建筑及受力不大、振动小的工
In the basic design of general industrial and civil buildings, when the local foundation is relatively weak, different types of pile foundations are often used. The general form is “piles, caps, reinforced concrete foundation beams” or strip foundations are pressed The way (such as plum-type) layout pile. The role of the pile is often only to strengthen the foundation, and the wall on the foundation beam is only considered as an external load. This type of pile foundation program, in general, will inevitably increase investment and affect economic indicators. We believe that the foundation piling should not be simply to strengthen the foundation and separate the effect of the pile from the stress of the superstructure. Instead, the piling should be considered as a whole with the superstructure and work together; if the section size of the pile can be When the bearing capacity requirements are met, pile headers can be removed; in general civil buildings and workers with low forces and small vibrations