Anti-overturning performance design method for large-height-width-ratio high-rise structure based on pile foundation uplift
A high-rise structure and design method technology, applied in the direction of calculation, instrumentation, electrical digital data processing, etc., can solve the problems that the bearing capacity of the structural pile foundation is not considered, the anti-overturning performance of the high-rise structure has not been improved, and the anti-overturning performance of the high-rise structure cannot be guaranteed. , to achieve the effect of improving anti-overturning ability, convenient application and clear concept
Pending Publication Date: 2020-07-17
CIVIL AVIATION UNIV OF CHINA
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Problems solved by technology
At present, the overturning resistance of high-rise structures with large aspect ratios mainly considers the rigidity-to-weight ratio limit of the upper part of the structure under small earthquakes, but it cannot guarantee the overturning performance of high-rise structures under moderate and large earthquakes; at the same time, the current calculation method does not consider Influenced by the bearing capacity of structural pile foundations, and there are no structural foundation technical measures to improve the overturning resistance of high-rise structures
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[0024] The method for designing anti-overturning performance of a high-rise structure with a large aspect ratio based on pile foundation uplift resistance provided by the present invention will be described in detail below with reference to the accompanying drawings and embodiments.
[0025] The anti-overturning performance design method of a high-rise structure with a large aspect ratio based on the pile foundation anti-pull provided by the present invention comprises the following steps carried out in order:
[0026] 1) Build as figure 1 The three-dimensional analysis model of the high-rise structure composed of the superstructure 1, the basement 2 and the pile foundation 3 is shown, and then the small earthquake action analysis is carried out on the high-rise structure, so that the rigidity-to-weight ratio of the structure meets the limit value requirements, and it is preliminarily determined according to the dead load of the structure Diameter, pile length and quantity of ...
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The invention discloses an anti-overturning performance design method for a large-height-width-ratio high-rise structure based on pile foundation uplift. The method comprises the steps that structuresmall earthquake stiffness-weight ratio acceptance is carried out; structural medium-earthquake equivalent elasticity analysis is conducted, and the pile foundation uplift resistance is calculated; pile foundation uplift reinforcing bars are calculated according to the pile foundation uplift force; and when the uplift force of the pile foundation is large, technical measures of the shear wall andthe pile foundation are added, and uplift reinforcing bars of the pile foundation are recalculated. According to the anti-overturning performance design method for the high-rise structure with the large height-width ratio based on pile foundation uplift provided by the invention, the medium earthquake effect can be considered; the contribution of the pile foundation to the anti-overturning capability of the high-rise structure is considered; meanwhile, the underground anti-overturning wall body and the pile foundation are additionally arranged, so that the anti-overturning capacity of the high-rise structure under the action of a strong earthquake is improved, the design method is clear in concept and convenient for engineering technicians to apply in actual engineering, and the anti-overturning capacity of the high-rise structure can be provided through the method.
Description
technical field [0001] The invention relates to a method for designing anti-overturning performance of a high-rise structure with a large aspect ratio based on the uplift resistance of pile foundations, and belongs to the technical field of construction engineering. Background technique [0002] For high-rise or high-rise structures, due to the large structure height and relatively small plane size, it has a large aspect ratio. At this time, the anti-overturning of high-rise structures under the action of earthquakes is the safety guarantee of the structure's earthquake resistance. At present, the overturning resistance of high-rise structures with large aspect ratios mainly considers the rigidity-to-weight ratio limit of the upper part of the structure under small earthquakes, but it cannot guarantee the overturning performance of high-rise structures under moderate and large earthquakes; at the same time, the current calculation method does not consider Influenced by the b...
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Login to View More IPC IPC(8): G06F30/13G06Q50/08G06F119/14
CPCG06Q50/08
Inventor 黄信吕杨齐麟陈宇李长辉
Owner CIVIL AVIATION UNIV OF CHINA