Connection Performance of Mass Plywood Panels

Abstract

Tall wood buildings have become more prevalent in North America in the past 10 years. Tall wood-frame buildings implement both mass timber construction and products. Mass timber products are wood-based products that can withstand and hold large loads for long durations of time. Mass timber has allowed for large buildings, which consist mainly of wood, to be erected comprising multiple stories. One new mass timber product that has been fashioned is Mass Plywood Panels (MPP). MPP is a veneer-based engineered wood product, which is a massive, large-scale, structural composite lumber–based panel designed for use in building applications as both a vertical and horizontal element. For any new product to be used in the industry with confidence, a thorough investigation of its physical, mechanical, and connection properties is needed. A series of connection tests, such as fastener withdrawal resistance, dowel-bearing strength, lateral resistance, and a component test on a wall-to-floor system were conducted. The lateral resistance test indicated that the current European Yield Models can be used to calculate the yield loads and yield mode of the MPP by using the dowel-bearing strength of plywood. Three different connection configurations were tested in two distinct loading directions—shear and withdrawal. Their performances are evaluated and compared using two existing engineering models—namely, the American Society of Civil Engineers 41-13 tri-linear model and the seismic analysis of wood-frame structures 10-parameter connection model.

Biological durability of cross laminated timber connections

“…This is a ten parameter model that was developed to simulate the cyclic load-displacement behavior of light-frame wood shear walls. It has recently been used for mass timber connections [ [6] , [10] , [11] , [12] , 14 ]. This data set only includes the five envelope parameters ( Table 4 ) of the SAWS model.…”

Seismic and Energy Retrofit of Multifamily Light-Frame Timber Residential Buildings Using Mass Ply Panel (Mpp) Wall Façade System

“…To determine the hold-down equivalent stiffness (Ke in Figure 6), the stiffness used for an individual fastener is obtained from shear tests of angle bracket connections using nails with similar diameters [18]. For the steel plate, an axial stiffness relationship, EsA/L, is used, where Es is the steel Young's modulus, A is the cross-section area, and L is the effective length of the steel plate.…”

From Trees to Skyscrapers: Holistic Review of the Advances and Limitations of Multi-Storey Timber Buildings

“…Advances in experimental tests to evaluate the behavior of pin-type joints for the conformation of shear walls [158]. On the other hand, experimental development and numerical simulations of joints for the development of hybrid wood-steel buildings [22], joints in composite wood-concrete slabs [163,169], rigid connections in rigid laminated timber frames [278], and joints in CLT buildings [162,[166][167][168]170].…”