Abstract
文中在新型水泥基壓電傳感器的基礎上開發了一套水泥基壓電傳感系統,該系統由水泥基壓電傳感器、專門開發的小型電荷放大器、多通道數據采集儀和監測軟件組成。該水泥基壓電傳感系統具有與混凝土的兼容性好,耐久性好,成本低廉等優點。將該系統應用到短柱模型和框架結構模型的動態響應測試中。試驗結果表明:水泥基壓電傳感器在埋入混凝土構件后其頻響特性和輸入輸出的線性關系不變,而且由其構成的傳感系統還能夠準確獲得結構在簡諧及地震地面運動下的內力。水泥基壓電傳感系統可用于混凝土結構的動態監測。 In this paper a cement-based piezoelectric sensing system, including a sensing element, a small scale home made amplifier, and a home made (analog-digital) conditioner,is developed. The sensing system has some advantages,such as compatibility with concrete, good durability and low cost. The dynamic responses of a prism and a two story model frame structure are measured by using the developed sensing system for checking its performance. From the test results,it is found that the frequency independency and linearity of the cement-based piezoelectric sensor don't change after embedded into concrete and the developed sensing system can measure the stresses of the frame under the loading induced by shaking table with both harmonic and earthquake ground motions. Thus, it is valid and reliable for the cement-based piezoelectric sensing system to monitor the performance of concrete structure.
| Translated title of the contribution | Application of cement-based piezoelectric sensing system to concrete structure |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 111-118 |
| Journal | 地震工程与工程振动=Earthquake Engineering and Engineering Vibration |
| Volume | v. 32 |
| Publication status | Published - 2012 |
Keywords
- 水泥基
- 壓電傳感系統
- 混凝土結構
- 性能監測
- 試驗