评价螺杆轴堆复合基础在圆形的土壤:使用模型测试和数值模拟的研究
Tingting Yang1, Weicheng Zheng1, Yongli Xie1
1School of Highway, Chang'an Univ., Xi'an 710064, China.
Heliyon
|October 25, 2023
概括
这项研究通过分析几何参数来优化螺杆轴堆复合材料基础. 最佳的设计提高了承载能力,并减少了改善建筑和铁路工程应用的结算.
科学领域:
- 土木工程 土木工程是指土木工程.
- 地质技术工程 地质技术工程
- 设计基金会设计基金会设计基金会
背景情况:
- 螺杆轴堆被广泛用于建筑和铁路工程,因为它们具有高承载能力和成本效益.
- 使用螺杆轴堆的复合基础需要进一步研究以获得最佳设计.
- 准确确定和的几何参数对于成功的基础设计至关重要.
研究的目的:
- 综合评估螺杆轴的承载能力,沉降和力特性.
- 研究关键几何参数对基础性能的影响.
- 为优化螺丝轴堆复合材料基础的设计提供见解.
主要方法:
- 使用室内实验和数值模拟的组合.
- 检查的关键参数包括根径,斜率,缓冲模和线状部分的比例.
- 在各种条件下评估业绩,以评估承载能力和结算.
主要成果:
- 螺杆轴堆的最佳侧面阻力是在线程截面长度为堆长度 (L) 的0.44-0.55倍的线程截面长度下实现的.
- 降低斜率可以提高承载能力,在斜率大约等于直径 (D) 的情况下,性能最佳.
- 与0.5D相比,线程宽度在0.58D和0.67D之间显著降低了约22%的应力度,而40-60 MPa的缓冲模量将沉积量降到最低.
结论:
- 该研究为优化螺杆轴堆复合材料基础设计提供了关键的见解.
- 研究结果为工程师在选择最佳几何参数以提高性能方面提供了宝贵的指导.
- 该研究有助于在土木工程项目中推进高效可靠的基础设计.
相关概念视频
Slump Test
238
The slump test is a widely used method to measure the workability of concrete. It employs a 12-inch high truncated cone mold that tapers from eight inches at the base to four inches at the top. Before testing, the mold is securely attached to a flat base and dampened.
Concrete is poured into the mold in three layers to conduct the test. Each layer is compacted 25 times with a steel tamping rod, which has a five-eighths-inch diameter and a rounded end, to ensure even distribution and eliminate...
Concrete is poured into the mold in three layers to conduct the test. Each layer is compacted 25 times with a steel tamping rod, which has a five-eighths-inch diameter and a rounded end, to ensure even distribution and eliminate...
238
Behavior of Concrete Under Compressive Load
183
Concrete exhibits specific behaviors under different compressive loads. Understanding this is crucial for understanding its structural integrity. When concrete undergoes uniaxial compression, it tends to develop cracks that run parallel to the direction of the force. These parallel cracks stem from localized tensile stresses that occur perpendicular to the compression direction. Additionally, angled cracks may appear due to the formation of shear planes.
As the concrete specimen fractures under...
As the concrete specimen fractures under...
183
Impact Strength of Concrete
217
Impact strength in concrete is a critical measure that reflects the material's capability to endure the forces applied during pile driving and when supporting machinery foundations that experience impulsive loads. It is also essential when handling precast concrete components to prevent accidental damage. The impact strength is assessed by observing the concrete's resistance to repeated impacts and energy absorption capacity. A key indicator of significant damage to concrete is when it...
217
Design of Transmission Shafts - Stress Analysis
379
Designing a transmission shaft requires a thorough understanding of the stresses induced by bending moments and torques, especially in systems where power is transferred through gears. These forces create force-couple systems at the centers of the shaft's cross-sections, leading to both transverse and torsional loading. Although shearing stresses from transverse loads are typically smaller than those from torques and are often overlooked, the significant normal stresses from these loads...
379
Screw: Problem Solving
422
In mechanical engineering, the interaction between a threaded screw shaft and a plate gear involves analyzing the resisting torque on the plate gear that can be overpowered when a specific torsional moment is applied to the shaft. To better comprehend this concept, consider a generic situation with a threaded screw shaft with a given mean radius and lead and a plate gear with a specified mean radius. The coefficient of static friction between the screw and gear is also provided.
To evaluate the...
To evaluate the...
422
Residual Stresses in Circular Shafts
179
In materials that exhibit elastic and plastic behavior, known as elastoplastic materials, residual stresses can accumulate when these materials experience plastic deformation. This deformation arises from either high levels of shearing stress or significant strains. Residual stresses are internal stresses that persist within a material after removing the external force causing deformation. This phenomenon is demonstrated when observing the behavior of a shaft under torque; notably, the...
179


