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( Zhan Biao Chen ) 국민대학교 중국지식네트워크 2014 중국지식네트워크 Vol.4 No.-
當代城市普遍存在著休閑空間궤乏的問題, 造成這種現象主要與以下三個因素相關: (1) 休閑空間爲“城市化”所“抹除”;(2) 休閑空間爲“特權者”所“圈占”;(3) 休閑空間爲“公家人”所“出賣”。正是在“唯利是圖的資本”和“損公肥私的權力”的雙重夾擊下, 城市休閑空間被제兌、被獨占、被出賣。要改變這種情形, 恢復城市必要的休閑空間, 壹方面要放棄“利益最大化”的“算盤思維”, 壹方面要破除“權爲我所用, 利爲我所謀”的“權力意識”。 The contemporary city exists the problem of lack of leisure space. There are three factors accounting for this phenomenon:(1) The leisure space is erased by the urbanization; (2) The leisure space is occupied by the privilege people; (3)The leisure space is sold by the ones who live on the public finance. Under the attacking of the capital and power, city leisure space is cut ,occupied, and sold. To change this situation and restore the city leisure space necessary, one should abandon the abacus thinking(profit maximization) and the power consciousness(seeking profit for me by privilege).
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Jia-Xiang Lin,Yong-Jian Cai,Ze-Ming Yang,Shu-Hua Xiao,Zhan-Biao Chen 국제구조공학회 2022 Steel and Composite Structures, An International J Vol.45 No.1
Steel fiber composite bar (SFCB) is a novel type of reinforcement, which has good ductility and durability performance. Due to the unique pseudo strain hardening tensile behavior of SFCB, different flexural behavior is expected of SFCB reinforced concrete (SFCB-RC) beams from traditional steel bar reinforced concrete (S-RC) beams and FRP bar reinforced concrete (F-RC) beams. To investigate the flexural behavior of SFCB-RC beam, four points bending tests were carried out and different flexural behaviors between S/F/SFCB-RC beams were discussed. An flexural analytical model of SFCB-RC beams is proposed and proved by the current and existing experimental results. Based on the proposed model, the influence of the fiber volume ratio R of the SFCB on the flexural behavior of SFCB-RC beams is discussed. The results show that the proposed model is effective for all S/F/SFCB-RC flexural members. Fiber volume ratio R is a key parameter affecting the flexural behavior of SFCB-RC. By controlling the fiber volume ratio of SFCB reinforcements, the flexural behavior of the SFCB-RC flexural members such as bearing capacity, bending stiffness, ductility and repairability of SFCB-RC structures can be designed.
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