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桩基导管架平台在水平荷载作用下的受力分析,由于考虑结构-桩-土之间的共同作用,所以,这是一个相当复杂的问题。近年来,国外许多学者对这一课题的合理解,作了大量的工作,并提出了一些有意义的分析方法。其中比较著名的有反弯点法、模拟桩法、外线弹簧法以及割线模量法等。本文在分析上述诸方法的基础上,提出了一个类似于割线模量法的等效自立式桩的分析方法,并编制了相应的计算机程序。由于考虑了结构-桩-土之间的内力平衡及变形相容条件,以及结构、桩的线性特性和土的非线性影响,所以本文所建议的计算方法和计算机程序是可靠的,计算分析结果也令人满意。本文根据实例的分析结果,对有关设计规范提出了一些看法和建议。
The stress analysis of pile-type jacket platform under horizontal load is a rather complex issue due to the joint action of structure-pile-soil. In recent years, many foreign scholars made a great deal of work on the reasonable solution to this issue and put forward some meaningful analytical methods. One of the more famous have anti-bending point method, simulation pile method, outside the spring method and secant modulus method. Based on the analysis of the above methods, this paper presents a method of equivalent free standing pile analysis similar to the secant modulus method, and compiles the corresponding computer program. Due to the consideration of the internal force balance and deformation compatibility between structure and pile-soil, as well as the linearity of structure and pile and the nonlinear effect of soil, the calculation method and computer program proposed in this paper are reliable and the result of calculation and analysis Also satisfactory. Based on the analysis results of the examples, this paper gives some opinions and suggestions on the design specifications.