Papers by Josef Hadipramana
Graphical abstract Abstract This paper investigates the structural behaviour of two connected San... more Graphical abstract Abstract This paper investigates the structural behaviour of two connected Sandwiched Precast Lightweight Foamed Concrete Panel (PLFP) in term of their load bearing capacities and failure modes. Three (3) connected PLFP panels were cast using foamed concrete as the wythe and polystyrene as the core layer. Each connected panel were cast from two single panels connected using L-bar connection. The panels were strengthened with steel bar reinforcement embedded in both wythes which were connected to each other by the steel shear truss connectors. The connected PLFP panels were tested under flexural load. A single PLFP panel was cast as a control panel and tested under axial load. The results were analysed in term of the panel's ultimate load, crack pattern and mode of failure. Results showed that the two connected PLFP panels were able to sustain slightly lower ultimate load compared to single PLFP panel. Crack at 45 degree angle at top half of panel and small crack at surface between joint of the connection were observed. Abstrak Kajian ini mengenai kelakuan struktur dua panel konkrit berbusa pasang siap (PLFP) dari segi keupayaan tanggung beban dan mod kegagalannya. Tiga (3) panel PLFP bercambung disediakan menggunakan konkrit berbusa sebagai lapisan luar dan polisterin sebagai lapisan dalam. Setiap panel bersambung ini terdiri dari dua panel tunggal yang disambung menggunakan sambungan L-bar. Panel ini dikuatkan dengan tetulang besi yang di letakkan di dalam lapisan luar wythe yang diikat kepada tetulang penyambung ricih. Panel bersambung ini diuji di bawah beban lenturan. Panel tunggal sebagai panel kontrol diuji di bawah beban paksi. Keputusan yang direkodkan dianalisa dari segi kekuatan muktamad, paten rekahan dan mod kegagalannya. Analisa keputusan menunjukkan panel bersambung di bawah beban lentur ini mampu menanggung beban yang kurang sedikit daripada beban yang ditanggung oleh panel PLFP tunggal di bawah beban paksi. Rekahan pada 45 darjah pada bahagian atas panel dan rekahan kecil pada permukaan di antara sambung dua panel telah direkodkan. Kata kunci: Panel konkrit ringan pasang siap, kelakuan struktur, beban muktamad, paten rekahan, mod kegagalan
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Papers by Josef Hadipramana