Analisis Tahanan Cabut Sekrup pada Hybrid Cross Laminated Timber
Penulis Utama
:
Widya Kartika Mulyawati
NIM / NIP
:
K1521063
×<p class="MsoNormal" xss=removed><i>The use of
local Indonesian wood as a raw material for Hybrid Cross Laminated Timber (CLT)
is still limited. In CLT production, another important aspect to consider is
the jointing system. The objectives of this research are to find: (1) The
withdrawal resistance value of three types of screws, namely lag screw, self
drilling screw, and self tapping screw against the combination of hybrid cross
laminated timber (CLT) using acacia and mindi wood. (2) The failure pattern of
the CLT hybrid block that occurs after screw withdrawal. This study used a
quantitative experimental research method, namely by testing the withdrawal
resistance of screws on the CLT hybrid block. CLT consists of three layers with
acacia wood composition positioned on the outermost layer and mindi wood on the
middle layer. The screws that was used are self tapping screw (STS), self
drilling screw (SDS), and lag screw. The test specifications that was used is
ASTM D1761 " Standard Test Methods for Mechanical Fasteners in Wood
". The results of the study showed that, (1) Acacia wood showed an average
water content value of 13,98% and an average wood density value of 0,66.
Meanwhile, mindi wood produced an average water content value of 10,56% and an
average density value of 0,42. Based on ANSI/APA PRG 320-2018, wood that can be
used to make CLT must have a minimum density of 0,35. Therefore, acacia wood
and mindi wood meet the requirements as materials for making CLT. (2) The
average withdrawal resistance value for each type of screw, including lag
screws in the longitudinal direction (L) 5,10 MPa, tangential (T) 5,46 MPa, and
perpendicular direction (S) 5.74. In self-drilling screws, the average value </i><!--[if gte msEquation 12]><m><m><m><span xss=removed><m></m></span></m><m><i xss=removed><span lang=SV xss=removed><m>f</m></span></i></m><m><i xss=removed><span lang=SV xss=removed><m>ax</m></span></i></m></m></m><![endif]--><!--[if !msEquation]--><span xss=removed><!--[if gte vml 1]><v id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
<v joinstyle="miter">
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<v eqn="if lineDrawn pixelLineWidth 0">
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<o v:ext="edit" aspectratio="t">
</v><v id="_x0000_i1025" type="#_x0000_t75" xss=removed>
<v src="file:///C:/Users/acer/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png" o:title="" chromakey="white">
</v><![endif]--><!--[if !vml]--><img width="20" height="28" shapes="_x0000_i1025"><!--[endif]--></span><!--[endif]--><i>in the L direction is 3,14
MPa, T direction 5,14 MPa, and S direction 5,39 MPa. Meanwhile, in the
self-tapping screw, the average value </i><!--[if gte msEquation 12]><m><m><m><span xss=removed><m></m></span></m><m><i xss=removed><span lang=SV xss=removed><m>f</m></span></i></m><m><i xss=removed><span lang=SV xss=removed><m>ax</m></span></i></m></m></m><![endif]--><!--[if !msEquation]--><span xss=removed><!--[if gte vml 1]><v id="_x0000_i1025" type="#_x0000_t75" xss=removed>
<v src="file:///C:/Users/acer/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png" o:title="" chromakey="white">
</v><![endif]--><!--[if !vml]--><img width="20" height="28" shapes="_x0000_i1025"><!--[endif]--></span><!--[endif]--><i>in the L direction is
2.83 MPa, in the T direction it is 3,72 MPa, in the S direction it is 3,55 MPa.
(3) There is a similar failure pattern in the three types of screws in
the hybrid CLT. In the perpendicular (S) and tangential (T) directions, there
is a failure pattern with damage to the area around the screw. While in the
longitudinal (L) direction, there is only a failure to pull out. <o></o></i></p>
×
Penulis Utama
:
Widya Kartika Mulyawati
Penulis Tambahan
:
-
NIM / NIP
:
K1521063
Tahun
:
2025
Judul
:
Analisis Tahanan Cabut Sekrup pada Hybrid Cross Laminated Timber
Edisi
:
Imprint
:
Surakarta - Fak. KIP - 2025
Program Studi
:
S-1 Pendidikan Teknik Bangunan
Kolasi
:
Sumber
:
Kata Kunci
:
Hybrid CLTWithdrawal ScrewPola Kegagalan
Jenis Dokumen
:
Skripsi
ISSN
:
ISBN
:
Link DOI / Jurnal
:
-
Status
:
Public
Pembimbing
:
1. Kundari Rahmawati, S. Pd., M.Eng.
Penguji
:
1. Dr. Sri Sumarni, S. T., M. T. 2. Aryanti Nurhidayati, S. T., M. Eng.
Catatan Umum
:
Fakultas
:
Fak. KIP
×
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