書誌事項
- タイトル別名
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- A METHOD FOR ESTIMATING STATIC ELASTIC PILE-HEAD SPRING USING THE IMPULSE RESPONSE EXCITED BY HUMAN POWER
- ジンリキカシン ニ ヨル クイガシラ ノ インパルス オウトウ オ モチイテ ダンセイ リョウイキ ニ オケル クイガシラ ノ セイテキバネ オ スイテイ スル ホウホウ
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説明
<p> Recently, there are few construction works in vacant lot. Many construction works take place after demolishing the existing building. In such case, reuse of the existing piles is reasonable. We need a way to verify the performance of the existing piles for reuse. Therefore, in this paper, we proposed a simple method for estimating the static elastic pile-head spring using the impulse response excited by human power. We also proposed a simple method to simulate the impulse response of the pile-head.</p><p> The steps for the proposed estimation method are as follows:</p><p> 1. Attach the accelerometer to the target pile-head.</p><p> 2. Hit the pile-head with an impulse hammer to obtain the time series data of the input and response of the pile-head.</p><p> 3. Calculate the impulse response of the pile-head by using the data.</p><p> 4. Pile-head spring we want is the reciprocal of the impulse response.</p><p> Dynamic model proposed to simulate pile-head response is a beam-on-Winkler-foundation considering its own inertial force. Assuming homogeneous subgrade and applying some boundary conditions to the model, closed-form solutions of pile-head response can be obtained. By using these solutions, we can simulate the pile-head response easily.</p><p> As a verification examination, we compared results of the proposed methods with results of static load tests. We conducted the examination on a total of five piles at three locations. As a result, we confirmed that the results of proposed methods agree with the results of static load test.</p>
収録刊行物
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- 日本建築学会構造系論文集
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日本建築学会構造系論文集 86 (779), 65-75, 2021
日本建築学会
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詳細情報 詳細情報について
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- CRID
- 1390568456356552320
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- NII論文ID
- 130007977604
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- NII書誌ID
- AN10438559
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- ISSN
- 18818153
- 13404202
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- NDL書誌ID
- 031234747
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可