醫院消防撒水系統機械式接頭之耐震行為與評估分析

Seismic Behavior and Evaluation of Mechanical Fittings for Fire Protection Sprinkler Piping Systems in Hospitals

林凡茹(Fan-Ru Lin) ； 張國鎮(Kuo-Chun Chang) ； 黃振綱(Jhen-Gang Huang) ； 柴駿甫(Juin-Fu Chai)

《結構工程》 29卷4期 (2014/12) Pp. 88-109

https://doi.org/10.6849/SE.201412_29(4).0005

摘要

醫院等重要建築耐震性能設計目的即為於強震後維持使用機能。然而國內外重要建築之消防撒水系統抗震經驗顯示，消防撒水管線系統一旦於某處輕微震損而發生洩漏，隨即因工作水壓導致消防水大量外流，釀成淹水等二次傷害，迫使重要建築中斷其機能。其中，機械式接頭（含螺紋式、溝槽式接頭）易為其管線系統的耐震弱點之一，然國內外工程界甚少關於消防管線系統機械式接頭性能設計所需之易損性實驗數據、元件非線性行為等相關研究。本研究針對國內醫院消防管線機械式接頭常見之規格，執行螺紋式與溝槽式接頭擬靜態實驗，並以靜力與動力分析進行管線系統初步評估，比較其受震行為及容量，以做為醫院等重要建築消防管線性能設計之參考。

關鍵字

消防撒水系統 ； 機械式接頭 ； 溝槽式接頭 ； 螺紋接頭 ； 擬靜態實驗 ； 耐震性能評估

並列摘要

Based on the experiences learned from recent earthquakes, it is recognized that the immediate operation of a hospital after strong earthquakes relies heavily on the functional integrity of critical nonstructural components. However, from the literature review of earthquake damages, the reduction of medical functionality has been caused by serious flooding due to the damage of mechanical fittings (including grooved couplings and screwed fittings) of sprinkler system. Hence, the objective of this paper is aimed to investigate the seismic behavior of mechanical fittings to improve the seismic performance of sprinkler systems effectively. The seismic capacities of mechanical fittings in pair with various pipe dimensions were studied through quasi-static tests under cyclic pure-bending loads. The small-bore fittings were further studied to the combined shear and bending effects. Based on the test results, the seismic performance evaluations for vertical and horizontal piping systems were implemented through static and dynamic analyses respectively.

並列關鍵字

sprinkler piping systems ； mechanical fittings ； grooved couplings ； screwed fittings ； quasi-static testing ； seismic performance evaluation