Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-cycle reciprocating multi-cycle pile foundation pulling-resistant static load detection method
The invention provides a low-cycle reciprocating multi-cycle pile foundation pulling resistance static load detection method. The method comprises the steps that S1, N% of test load serves as low load to load and unload a pile foundation; s2, repeating the step S1 for multiple times; s3, the N%-M% test load is divided into a plurality of periodic loads with the incremental quantity being Q%, and the pile foundation is loaded and unloaded according to the sequence from small to large and with each periodic load as the maximum loading load; and S4, loading the pile foundation step by step until the load reaches 100% test load, and then unloading the load of the pile foundation step by step until the load is 0. The method has the beneficial effects that a'multi-cycle loading 'collaborative stress model is established by adopting a low-cycle reciprocating principle to perform deformation analysis, and a static test of multiple reciprocating cycles is applied, so that the pile foundation component is repeatedly loaded and unloaded in the positive and negative directions, and the stress-strain state of the stress characteristic of the structure in the'low-cycle reciprocating' is explored; and the range and relation of elastic-plastic deformation of the pile foundation can be found according to stress and displacement curves.
本发明提供一种低周往复多循环桩基抗拔静载检测方法，包括S1、以N％试验荷载作为低荷载对桩基进行加载和卸载；S2、多次重复步骤S1；S3、将N％‑M％试验荷载分为多个递增量为Q％的周期荷载，按照由小到大的顺序依次根据以每一个周期荷载为最大加载荷载对桩基进行加载和卸载；S4、对桩基逐级加载荷载直至荷载达到100％试验荷载，然后对桩基逐级卸载荷载直至荷载为0。本发明的有益效果：采用低周往复原理建立“多循环加载”协同受力模型进行变形分析，施加多次往复循环的静力试验，使桩基构件在正反两个方向重复加载和卸载的过程，探究该结构在“低周往复”的受力特性是处于何种应力应变状态，可以根据受力及位移曲线寻找桩基弹塑性变形的范围及关系。
Low-cycle reciprocating multi-cycle pile foundation pulling-resistant static load detection method
The invention provides a low-cycle reciprocating multi-cycle pile foundation pulling resistance static load detection method. The method comprises the steps that S1, N% of test load serves as low load to load and unload a pile foundation; s2, repeating the step S1 for multiple times; s3, the N%-M% test load is divided into a plurality of periodic loads with the incremental quantity being Q%, and the pile foundation is loaded and unloaded according to the sequence from small to large and with each periodic load as the maximum loading load; and S4, loading the pile foundation step by step until the load reaches 100% test load, and then unloading the load of the pile foundation step by step until the load is 0. The method has the beneficial effects that a'multi-cycle loading 'collaborative stress model is established by adopting a low-cycle reciprocating principle to perform deformation analysis, and a static test of multiple reciprocating cycles is applied, so that the pile foundation component is repeatedly loaded and unloaded in the positive and negative directions, and the stress-strain state of the stress characteristic of the structure in the'low-cycle reciprocating' is explored; and the range and relation of elastic-plastic deformation of the pile foundation can be found according to stress and displacement curves.
本发明提供一种低周往复多循环桩基抗拔静载检测方法，包括S1、以N％试验荷载作为低荷载对桩基进行加载和卸载；S2、多次重复步骤S1；S3、将N％‑M％试验荷载分为多个递增量为Q％的周期荷载，按照由小到大的顺序依次根据以每一个周期荷载为最大加载荷载对桩基进行加载和卸载；S4、对桩基逐级加载荷载直至荷载达到100％试验荷载，然后对桩基逐级卸载荷载直至荷载为0。本发明的有益效果：采用低周往复原理建立“多循环加载”协同受力模型进行变形分析，施加多次往复循环的静力试验，使桩基构件在正反两个方向重复加载和卸载的过程，探究该结构在“低周往复”的受力特性是处于何种应力应变状态，可以根据受力及位移曲线寻找桩基弹塑性变形的范围及关系。
Low-cycle reciprocating multi-cycle pile foundation pulling-resistant static load detection method
一种低周往复多循环桩基抗拔静载检测方法
LI HONGYANG (Autor:in) / WU SHOUXIANG (Autor:in) / ZHANG XI (Autor:in) / CUI YONGWANG (Autor:in) / ZHAO DANG (Autor:in) / ZHOU MIN (Autor:in) / ZHAO HENG (Autor:in) / LEI WEI (Autor:in) / QIU FENG (Autor:in) / ZHANG LEI (Autor:in)
02.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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