TY - GEN
T1 - Assessment and Retrofitting of Historical Over-Capping Timber Structure
AU - Alrasyid, Harun
AU - Sutrisno, Wahyuniarsih
AU - Irmawan, Mudji
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.
PY - 2025
Y1 - 2025
N2 - This paper shows the assessment process of a 100 year-old historical over-capping timber structure. Visual observation, destructive, and non-destructive tests were performed to obtain the material properties of the timber structures. Based on the visual inspection, several of the element timber structures experienced deterioration. The destructive samples were obtained to observe the mechanical properties of timber material. The samples were acquired at a location that did not disturb structure stability. The mechanical properties of timber material, such as bending stress, tension stress parallel to the grain, compression stress parallel to the grain, and compression stress perpendicular to the grain, are examined to gain the actual strength of the material based on disturbed samples. Ultrasonic Pulse Velocity and humidity tests were performed on-site as part of non-destructive tests. The structure analysis was performed based on existing material data. To obtain nominal stress, this basis design stress was multiplied with several coefficients such as wet service factor, temperature factor, beam stability factor, size factor, flat use factor, incising factor, repetitive member factor, and column stability factor. The structure analysis showed that the columns’ structure needs to be retrofitted. The proposed design for timber retrofitting is shown in this paper and has been conducted on the site.
AB - This paper shows the assessment process of a 100 year-old historical over-capping timber structure. Visual observation, destructive, and non-destructive tests were performed to obtain the material properties of the timber structures. Based on the visual inspection, several of the element timber structures experienced deterioration. The destructive samples were obtained to observe the mechanical properties of timber material. The samples were acquired at a location that did not disturb structure stability. The mechanical properties of timber material, such as bending stress, tension stress parallel to the grain, compression stress parallel to the grain, and compression stress perpendicular to the grain, are examined to gain the actual strength of the material based on disturbed samples. Ultrasonic Pulse Velocity and humidity tests were performed on-site as part of non-destructive tests. The structure analysis was performed based on existing material data. To obtain nominal stress, this basis design stress was multiplied with several coefficients such as wet service factor, temperature factor, beam stability factor, size factor, flat use factor, incising factor, repetitive member factor, and column stability factor. The structure analysis showed that the columns’ structure needs to be retrofitted. The proposed design for timber retrofitting is shown in this paper and has been conducted on the site.
KW - Heritage
KW - Resilient buildings
KW - Retrofitting structure
KW - Structural assessment
KW - Timber structure
UR - http://www.scopus.com/inward/record.url?scp=85210475508&partnerID=8YFLogxK
U2 - 10.1007/978-981-97-5477-9_3
DO - 10.1007/978-981-97-5477-9_3
M3 - Conference contribution
AN - SCOPUS:85210475508
SN - 9789819754762
T3 - Lecture Notes in Civil Engineering
SP - 27
EP - 37
BT - Proceedings of the 4th International Civil Engineering and Architecture Conference - CEAC 2024
A2 - Casini, Marco
PB - Springer Science and Business Media Deutschland GmbH
T2 - 4th International Civil Engineering and Architecture Conference, CEAC 2024
Y2 - 15 March 2024 through 17 March 2024
ER -