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| March 26-28, 2013 At Structural Laboratory in Architectural Studio, Department of Architecture, Mukogawa Women's University |
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| ■Outline |
Connection detail with semi-finished bolts is usually applied to the connection between plank sheets set up at intervals of 500 mm width and shear transfer is not considered in design. In this experiment, connection detail with high strength bolts counting on frictional resistance was proposed and its shear performance was examined in detail. Besides, shear performance of typical connection detail with semi-finished bolts was examined to be compared. Here, the performance under many stress reversals during excitations such as earthquakes was aimed to be evaluated and then reversed cyclic loading was conducted. Shear experiments on connection detail of plank sheet were conducted using experimental apparatus as shown in Picture 1 at structural laboratory in Architectural Department of Mukogawa Women’s University. |
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Picture 1: Large-Scale Structural Experiment Apparatus installed at Structural Laboratory in Mukogawa Women’s University |
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Usage condition of the loading apparatus is shown in Figure 1 and the detail around the specimen is shown in Figure 2. Several plank sheets with different connection details were prepared and a series of experiments were conducted with the variation of these combinations. |
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| Figure 1: Loading Apparatus |
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Figure 2: Plank Sheet Specimen (Plank Sheet Specimen A and B in the figure) |
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| Picture 2: Plank Sheet Specimen |
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Three types of connection detail are shown in Table 1. |
Table 1: List of Connection Details
No. of Specimen |
Connection Condition |
Waterproofing |
1 |
M16, High Strength Bolt (Proposed) |
Present |
2 |
M16, High Strength Bolt (Proposed) |
Present |
3 |
M20, Semi-finished Bolt (Typical) |
Present |
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○Measurement
・Data logger and personal computer (software) owned by Mukogawa Women’s University were used.
・Load was recorded by load cell installed for horizontal jack.
・Shear slip of the connection was recorded using displacement transducer owned by Mukogawa Women’s University.
○Loading
・Reversed cyclic loading was conducted operating loading pump and horizontal jack installed at structural experiment apparatus.
・Loading was conducted referring to slip displacement according to loading schedule shown below.
Cycle No.1 Cycle No.2
(0mm)→(＋5 mm)→(0 mm)→(−5 mm)→(0 mm)→(＋10 mm)→(0 mm)→(−10 mm)→(0 mm)
Cycle No.3 Cycle No.4
(0mm)→(＋20 mm)→(0 mm)→(−20 mm)→(0 mm)→(＋30 mm)→(0 mm) |
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| ■Summary |
| Connection detail with high strength bolts, which satisfies frictional connection even under the condition of inserting waterproofing rubber material, was proposed to transmit shear force between plank sheets. In comparison with experimental data on connection detail with semi-finished bolts, the superiority of the connection with high strength bolts was confirmed. Based on these experiments and numerical analyses, fundamental knowledge enough to design plank sheet as structural element to transmit in-plane shear force was acquired. |
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Picture 3: Condition of Structural Experiment |
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Hanshin Electric Railway Co., Ltd.
Architectural Design Studio in Mukogawa Women’s University
Shigeyuki OKAZAKI: Professor Emeritus, Kyoto University,
Professor, Head, Department of Architecture, Mukogawa Women's University
Mamoru KAWAGUCHI: Professor Emeritus, Hosei University,
President, KAWAGUCHI & ENGINEERS,
Visiting Professor, Mukogawa Women's University
Department of Architecture, Mukogawa Women’s University, Japan
Noritoshi SUGIURA
Keisuke INOMATA
Junko MORIMOTO
Aya YAMAGUCHI |
