Present Structural Deformations and Analysis of Yingxian Wooden Pagoda(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2019年01期
- Page:
- 32-40
- Research Field:
- Publishing date:
Info
- Title:
- Present Structural Deformations and Analysis of Yingxian Wooden Pagoda
- Author(s):
- XUE Jian-yang; ZHANG Yu-sen
- School of Civil Engineering, Xi’an University of Architecture and Technology
- Keywords:
- Yingxian Wooden Pagoda; columns deformation; architraves deflection; beam ties’ deflection; overall deformation
- PACS:
- -
- DOI:
- -
- Abstract:
- In order to acquire the present deformations of components and overall Yingxian Wooden Pagoda, the coordinate values of heads and bases of columns, deflections of architraves and beam ties and relative elevations of floors were measured, and the geometric parameters and mechanical characteristics including horizontal projection values of the oblique columns, elevations of column bases, altitude difference between the inside and outside, distributions of architraves and beam ties deflections and overall deformation were obtained. The results show that as for component deformations, the timber columns inclinations in the second bright floor and the third floor are the most severe in the Yingxian Wooden Pagoda, and the external columns inclinations on the south, southwest, and north sides in the fourth dark floor and the fifth dark floor are more serious than other corresponding columns in all dark floors. The towers inclination to the northeast is still aggravating. Column bases are higher in the south and lower in the north. Altitude difference between the inside and outside becomes larger from the second bright floor. Except for the fourth bright floor and fifth bright floor, 25%35% of architraves in each floor have large deflections, which need reinforcement, while beam ties deflections are small. There is a significant discrepancy in the overall deformation of the wooden pagoda between the eastwest and the northsouth directions. From the second dark floor to the fifth bright floor, the center deviation values in the eastwest direction firstly increase and then decrease, while those in the northsouth direction rise floor by floor. The eastward center deviation value of the external columns from the second bright floor to the third bright floor accounts for 75% of the overall deviation value of the tower in this direction, and the northward value of the second bright floor is 42% in the direction. There are also different center azimuth angles of each floor.
Last Update: 2019-01-23