由於城市化進程加快，全球每年用於生產混凝土的砂石用量增加，天然砂石的過度開採將破壞生態系統，另一方面又因都更計畫拆卸老舊建設產生大量的營建剩餘土石方，其中含有大量硬固混凝土塊及磚塊，國內目前多採掩埋方式處理，或是僅製成再生粒料後應用於力學需求較低之工程。近年，國際上已有許多將再生粒料應用於結構體的案例，而國內在結構混凝土中納入再生粒料之實驗數據不多，因此對於此方式尚未具有信心，在當前環保意識增強的背景下，應積極推廣並擴大再生粒料應用範圍。
因此，本研究針對B5 類營建剩餘土石方中佔比多數的廢磚瓦，經由興磊砂石場進行回收、破碎、研磨等技術製程，成為符合CNS 1240規範之細粒料—混磚砂細粒料後，用來取代天然細粒料製成新拌混凝土，並製作3座混磚砂細粒料混凝土RC柱構件，同時也製作3座一般天然粒料混凝土柱作為對照組，於國震中心台南實驗室進行反覆側推實驗，探討混磚砂細粒料混凝土柱受到不同軸力下之側力-位移關係，並以ACI 374.1標準評估耐震能力，最後再以TEASPA及SERCB輔助ETABS建立塑鉸進行側推分析，模擬及還原實驗結果。
實驗結果顯示，混磚砂細粒料混凝土柱之最大側向力皆略高於一般混凝土柱，且混磚砂細粒料混凝土柱遲滯迴圈飽滿，無握裹滑移現象，各項消能行為(位移韌性、等值遲滯阻尼比、回復勁度比等)皆與一般混凝土柱相似，甚至更為優異。混磚砂細粒料混凝土柱試體通過ACI 374.1勁度及韌性檢核；強度檢核方面，與一般混凝土柱試體相同，僅高軸壓試體未通過檢核，判斷係因P-Δ效應提高了最大強度，但使後期強度下降劇烈，無法直接判斷係使用混磚砂細粒料混凝土導致。
分析結果顯示，不論使用TEASPA或是SERCB輔助ETABS建立塑鉸進行側推分析，皆可有效模擬及還原混磚砂細粒料混凝土柱之側推行為，可供日後結構設計師欲將磚砂混凝土運用於結構柱時，能夠準確預估其耐震行為進行設計。

This study processes bricks from construction surplus soil to produce recycled fine aggregates. These recycled fine bricks aggregates were then used to replace natural fine aggregates to fabricate three recycled brick aggregates(RBA) concrete RC column specimens, while three conventional natural aggregates(NA) concrete columns were simultaneously made as control specimens. Cyclic lateral loading experiments were conducted at the Tainan Laboratory of the National Center for Research on Earthquake Engineering (NCREE) to examine the force-displacement relationship of the RBA columns under varying axial forces. The seismic performance was evaluated according to ACI 374.1 standards. Finally, pushover analysis was performed using TEASPA and SERCB auxiliary ETABS to establish plastic hinges, simulating and replicating the experimental results.
The experimental results showed that the maximum lateral force of the RBA columns was slightly higher than that of the NA columns. Furthermore, the hysteresis loops of the RBA columns were full, with no bond slip phenomena, and all energy dissipation behaviors were similar to or even better than those of the NA concrete columns. The RBA column specimens passed the ACI 374.1 stiffness and ductility checks. In terms of strength checks, the RBA columns were the same as the NA column specimens, with only the high axial pressure specimen failing. This is because the high axial pressure ratio increased the maximum strength, but resulted in a significant post-peak strength decline, making it difficult to directly attribute to the use of RBA.
The analysis results indicated that the push-over behavior of the RBA columns could be effectively simulated and replicated using either TEASPA or SERCB auxiliary ETABS to establish plastic hinges. This provides structural designers with accurate predictions of the seismic performance of RBA columns for future structural applications.

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