Experiment and numerical analysis on bearing capacity of socket-spigot template supporting systems(PDF)
长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]
- Issue:
- 2016年06期
- Page:
- 78-87
- Research Field:
- 桥梁与隧道工程
- Publishing date:
Info
- Title:
- Experiment and numerical analysis on bearing capacity of socket-spigot template supporting systems
- Author(s):
- HU Chang-ming; GUO Yan; TIAN Peng-gang; YAN Xing-wei
- 1. School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi, China; 2. Shaanxi Institute of Architecture Science, Xi’an 710082, Shaanxi, China; 3. School of Civil Engineering, Chang’an University, Xi’an 710061, Shaanxi, China
- Keywords:
- civil engineering; socket-spigot template supporting system; basic mechanical unit frame; wedge tightness; nod semi-rigid degree; numerical analysis
- PACS:
- TU733
- DOI:
- -
- Abstract:
- Socket-spigot template supporting system was widely used as a new structure in civil and bridge engineering application with its high construction speed and strength, while the research on bearing capacity of which was stiu at its preliminary stage. In order to ensure the safety of template supporting system in concrete structures, vertical bearing capacity tests on the basic mechanical unit frame in socket-spigot template supporting system were carried out in this paper. Influence of the node semi-rigid degree and the pole longitudinal distance to the vertical bearing capacity were explored, and the displacement trends as well as the failure mode in loading process were analyzed. Regression analysis of the pole displacement by polynomial function and numerical analysis on vertical bearing capacity of unit frames and full-hall formwork by finite element software ANSYS were conducted. The relationship between node semi-rigid degree and vertical bearing capacity was obtained, and the node bearing area under different loading path was gained. The results show that the unit frame will fail with overall reverse, and the displacement regression error is less than 1 mm with the probability of 95.56% through five times polynomial. Two-linear reinforcement model of elastic-plastic material can well simulate the socket-type template supporting system. The loading path may greatly influence the node bearing area through node entity model analysis, so reasonable design should be carried out according to specific conditions.
Last Update: 2016-12-02