3.混凝土振动的机理 3.1.引言振动施工工艺在各种类型的混凝土工程中都已得到实际应用,但目前对混凝土振动理论及机理的认识还很有限。下文关于振动机理的分析涉及到混凝土振动的一般规律和各种型式的振动方法。 3.2.概述 3.2.1.振动运动混凝土振捣器一般具有作旋转运动的偏心重。这种振捣器产生谐振运动,可用数学分析所用的正弦波形式来表征(见图3)。 3. The Mechanism of Concrete Vibration 3.1. Introduction The vibration construction process has been applied practically in various types of concrete projects, but the current understanding of the theory and mechanism of concrete vibration is still limited. The following analysis of the vibration mechanism involves the general laws of concrete vibration and various types of vibration methods. 3.2. General 3.2.1. Vibro-motion concrete vibrators generally have eccentric weights for rotational motion. This vibrator produces a resonant motion that can be characterized in the form of a sine wave used for mathematical analysis (see Figure 3).