CLT | Material Culture

Page 61

economic/technical details

STRUCTURAL/SPANNING CAPACITY

ROLLING SHEAR DEFORMATION 1. VERTICAL JOINTS BETWEEN PERPENDICULAR WALLS 2. HORIZONTAL HALF-LAPPED JOINTS BETWEEN FLOOR PANELS 3. CONNECTIONS BETWEEN FLOOR PANELS TO THE WALLS BELOW 4. VERICAL HALF-LAPPED JOINTS BETWEEN WALL PANELS

TYPICAL STORY OF A CLT STRUCTURE

TYPICAL CLT WALL CONFIGURATIONS

CLT TESTING IN MIKI, JAPAN

ANALYSIS: Research and analysis on CLT construction is limited and most data is from physical experimentation, yet they lack versatility becuase of changes in layup, material, and manufacturing methods. Anyalytical approaches are now more commonly used but there is stil lack of hard data on CLT construction. The strucutral strength of CLT panels relies on the load duration factor, the wet service factor, and the temperature factor. STRUCTURE: The strucutral strength of CLT panels relies on the load duration factor, the wet service factor, and the temperature factor. Rolling shear strength and stiffness in CLT has been identied as a key issue that can control the desing and performance of CLT oor and wall systems. LATERAL: Seismic design analysis is underway in the United States so seismic applications are expected to be made through alternative method provisions. Resistance to lateral loads from wind and earthquakes in CLT strucutres is made through wall and oor panels designed as shear walls and diaphragms. The shear strength of CLT construction varies by factors sush as fastener size, spacing, and location as well as the strength of the CLT panel itself. Info from CLT Handbook 2013, chapters 3, 4, and 6

seattle center for buddhism | material culture | spring 2013

CLT Research 59


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