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A platform for research: civil engineering, architecture and urbanism
Method for testing uplift bearing capacity of slow-setting prestressed uplift pile
The invention discloses a method for testing the uplift bearing capacity of a slow-setting prestressed uplift pile, and aims to provide the method for testing the uplift bearing capacity of the slow-setting prestressed uplift pile, which can accurately and effectively evaluate the uplift bearing capacity of the slow-setting prestressed uplift pile. The method sequentially comprises the following steps that firstly, a steel strand of the slow-setting prestressed uplift pile is fixed to a cross beam; secondly, a cross beam is jacked up through a jack, so that upward pulling force is applied to a steel strand of the slow-coagulation prestressed uplift pile through the cross beam, and after the upward pulling force applied to the steel strand by the jack reaches a set value F1, the jack keeps the state; thirdly, reinforcing steel bars of the slow-setting prestressed uplift piles are fixed to the cross beams; and fourthly, the jack continues to conduct loading, the cross beam is jacked upwards, and therefore upward pulling force is applied to the steel strands and the steel bars of the slow-setting prestress uplift pile through the cross beam till the jack is loaded to the set value F2 or till the slow-setting prestress uplift pile is damaged.
本发明公开了一种缓凝结预应力抗拔桩的抗拔承载力测试方法，旨在提供一种能够准确有效的对缓凝结预应力抗拔桩的抗拔承载力进行评价的缓凝结预应力抗拔桩的抗拔承载力测试方法。它依次包括以下步骤：第一，将缓凝结预应力抗拔桩的钢绞线固定在横梁上；第二，通过千斤顶将横梁往上顶起，从而通过横梁在缓凝结预应力抗拔桩的钢绞线施加上拔力，在千斤顶施加在钢绞线上的上拔力达到设定值F1后，千斤顶保持该状态；第三，将缓凝结预应力抗拔桩的钢筋固定在横梁上；第四，千斤顶继续加载，将横梁往上顶起，从而通过横梁在缓凝结预应力抗拔桩的钢绞线和钢筋上施加上拔力，直至千斤顶加载至设定值F2或者直至缓凝结预应力抗拔桩被破坏。
Method for testing uplift bearing capacity of slow-setting prestressed uplift pile
The invention discloses a method for testing the uplift bearing capacity of a slow-setting prestressed uplift pile, and aims to provide the method for testing the uplift bearing capacity of the slow-setting prestressed uplift pile, which can accurately and effectively evaluate the uplift bearing capacity of the slow-setting prestressed uplift pile. The method sequentially comprises the following steps that firstly, a steel strand of the slow-setting prestressed uplift pile is fixed to a cross beam; secondly, a cross beam is jacked up through a jack, so that upward pulling force is applied to a steel strand of the slow-coagulation prestressed uplift pile through the cross beam, and after the upward pulling force applied to the steel strand by the jack reaches a set value F1, the jack keeps the state; thirdly, reinforcing steel bars of the slow-setting prestressed uplift piles are fixed to the cross beams; and fourthly, the jack continues to conduct loading, the cross beam is jacked upwards, and therefore upward pulling force is applied to the steel strands and the steel bars of the slow-setting prestress uplift pile through the cross beam till the jack is loaded to the set value F2 or till the slow-setting prestress uplift pile is damaged.
本发明公开了一种缓凝结预应力抗拔桩的抗拔承载力测试方法，旨在提供一种能够准确有效的对缓凝结预应力抗拔桩的抗拔承载力进行评价的缓凝结预应力抗拔桩的抗拔承载力测试方法。它依次包括以下步骤：第一，将缓凝结预应力抗拔桩的钢绞线固定在横梁上；第二，通过千斤顶将横梁往上顶起，从而通过横梁在缓凝结预应力抗拔桩的钢绞线施加上拔力，在千斤顶施加在钢绞线上的上拔力达到设定值F1后，千斤顶保持该状态；第三，将缓凝结预应力抗拔桩的钢筋固定在横梁上；第四，千斤顶继续加载，将横梁往上顶起，从而通过横梁在缓凝结预应力抗拔桩的钢绞线和钢筋上施加上拔力，直至千斤顶加载至设定值F2或者直至缓凝结预应力抗拔桩被破坏。
Method for testing uplift bearing capacity of slow-setting prestressed uplift pile
一种缓凝结预应力抗拔桩的抗拔承载力测试方法
ZHU WENWEI (author) / YANG XUELIN (author) / WU YUNHAI (author) / CAO ZHONGAN (author) / GU SHAOBO (author) / LI LING (author) / ZHOU DONGSHENG (author)
2023-07-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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