Flexural Strength on the Damage Limit State and Initial Rigidity of Built-Up Beam by Analogy With Itacolumite Microstructure

Abstract

In this study 」 the SRB ・ DUP ( Steel Reinfbrced Brick based on Distributed Unbond Prestress山eory )builI − up beam by ana 且 ogy with Itacolumite micmstructure is proposed ． The structural desi 即 fb皿 ula f ｛ ｝r bending momcnt on 竃 he damage limit statc and thc initial fiexural rigidity of thc bui 肚 ・ up beam by proposed construction method is verified in the cxpcriment ， As a result ， it is fbund that the bending mom ¢ nt when the plastic deformation is occurred in the beam is targer than the bending rnoment MAs on the damage limit s1aIe ， And i 重js 丘旧 nd that the initia 田 exural rigidity analyzed is olosed to an experimental value ．

A new structural system: friction-resistant dry-masonry

“…The new type of the structure proposed in this paper is analogous to the microstructure of itacolumite (Yamaguchi et al, 2005a). Itacolumite, also known as flexible sandstone, is flexible quartz schist and can be found in such countries as Brazil, the US and India.…”

“…The first is the bending moment of the beam when local buckling occurs at the position of the vertical joint in the horizontal reinforcing plate, whose top and bottom sides are held between bricks, and which is given the largest compressive stress by bending. The second is the bending moment of the beam when yielding occurs around a hole punched in the horizontal reinforcing plate, which is imparted the largest tensile stress by bending (Yamaguchi et al, 2005a).…”