No abstract

This paper presents an alternative design of a temporary house made of bamboo and its manufacturing process to become a prototype that can be seen by the public. It was expected that by seeing this prototype, the people who lives around disaster affected areas can build their own temporary houses or the government can build it for them. The process was initiated by reviewing the existing designs published previously which were then examined from the perspective and experience of the authors. The next step was defining some basic design criteria by combining findings from literature, author experiences, local conditions and the availability of resources. The proposed conceptual design was then developed based on the design criteria of a temporary house. At the last stage, a prototype of temporary house was constructed as a showcase. This article summarized all these processes which indicated that, to such extent within the boundary condition of the study, bamboo can be practically applied for building a temporary house following earthquake disaster, with a special reference to Lombok Earthquake in 2018.

The self-weight of the concrete slab in high-rise building construction significantly affects the risk of structural failure in earthquake-prone areas as the earthquake force is directly proportional to the mass of the building. To reduce the building mass then the sandwich concrete slab is introduced. This study focuses on variations of aspect ratio effect on the slab behavior under central point loading. The aspect ratios are set at 1.0, 1.26, 1.5, and 2.0. A normal concrete slab with an aspect ratio of 1 as the control specimen is prepared. Tension reinforcement of D10-150 is placed in both x-and y-direction. While the compression reinforcement of P8-200 for both directions is used. The slabs were supported on four edges and tested under a central point load. Results found that the slab with an aspect ratio of 2.0 has a greater stiffness than other slabs as well as the resistance load capacity. The slab with an aspect ratio less than 2.0 behaves similarly with no significant differences. Generally, the slab ductility index decreases with increasing the aspect ratio. All slabs have ductile behavior which is indicated by both the strain measurement and the relationship of the load-deflection curves. An aspect ratio of 2.0 as the limit used by the Standard for distinguishing one-way and two-way slab elements is proven valid and acceptable.

Recently, the utilization of timber as building materials was very promising for now and future. As renewable resources they have high mechanical properties, lightweight, environmentally friendly and economic. One of the most durable engineered wood products is glued-laminated timber which commonly called Glulam. Glulam is a material made of several layers of wood glued together with waterproof adhesive at specific pressure and temperature. The benefit of Glulam is enable to produce the structural member with longer span compared with solid wood. In other to obtain the structural Glulam with longer span, it required the finger joint connection on lamina layer. This study aims at to find out the effectiveness finger joint with variation in wood species towards flexural properties of Glulam beam. Experimental study have been done by using local wood Sengon and Rajumas as laminae and Biomatex as adhesive, at 0.6 MPa of clamp pressure. The variation of finger joint slope was tested are 1:8; 1:12; and 1:16. The result show that the glulam Sengon and Rajumas beam with slope finger joint of 1 over 12 produce the highest average bending strength of 299 kg/cm2 and 318 kg/cm2 respectively. The flexural strength of glulam Rajumas was 20% higher compared with glulam Sengon.

Salah satu tantangan utama pada saat proses pemulihan setelah kejadian bencana gempa adalah proses perbaikan tempat tinggal masyarakat. Setelah masa darurat selesai dan masyarakat kembali dari tempat pengungsian, mereka kembali ke rumahnya yang sudah rusak bahkan hancur berantakan. Pada tahap seperti ini masyarakat berada dalam situasi kebingungan dan kurang pasti harus melakukan apa. Tulisan dalam artikel ini ditujukan untuk memberikan pengetahuan kepada masyarakat bagaimana cara membangun kembali rumahnya dari puing-puing bekas yang tersisa dan bahan bangunan yang ada disekitarnya. Konsep yang ditawarkan disini adalah sebuah desain rumah yang masih termasuk dalam katagori hunian sementara (huntara) tetapi bisa memenuhi semua kebutuhan dasar penghuni layaknya sebuah rumah tinggal dan bisa ditempati dalam waktu tahunan sampai masyarakat siap membangun kembali rumahnya secara permanen. Bahan yang digunakan adalah bahan yang tersedia disekitar lingkungan pemukiman dan beberapa bagian merupakan daur ulang dari puing-puing bekas rumah yang mengalami kerusakan. Konsep hunian sementara ini telah berhasil didesain, dibangun dan diaplikasikan