## 1 Introduction
[PERSON] established a train-FST vertical coupling dynamics model to study the mechanical parameters of the shear hinge of prefabricated SSSFST and then pointed out that the shear joint in a prefabricated short slab can improve the integrity of the track and vibration reduction efficiency [13]. [PERSON] studied the dynamic behavior of the FST subjected to train-induced vibrations using a finite element approach, and the results showed that the polyurethane pad was more effective in reducing vibrations at the FST than the steel-spring isolator by a vibration transfer mechanism [14]. To analyze the dynamic performance of the vehicle-FST system accurately, [PERSON] established a vehicle-FST dynamic interaction model considering the flexibility of wheelsets, the influence of the rubber spring parameters, stiffness nonlinearity of the rubber spring, and wheelset flexibility on the dynamic performance of the system [15]. [PERSON] designed two types of porous supporting layers acting as the track supporting layer and studied the mechanical performance of the porous honeycomb track slab under point loads using nonlinear material properties [16]. For the slab tracks, another important study is the fatigue damage problem. [PERSON] studied the vibration characteristics of SSFST suitable for a 160 km/h URT during fatigue; the results indicated the fatigue loading aggravated the vibration level; however, the track system could still achieve excellent working performance [17]. [PERSON] established a vehicle-FST rigid-flexible coupling dynamic model to study the influence of vibration isolator failure on vehicle operation performance and FST vibration reduction effectiveness. The results showed that the failure of steel-spring vibration isolators had a significant impact on the operating safety and stability of vehicles and led to other track diseases [18]. [PERSON] proposed a damage detection method based on the one-dimensional residual convolution network that achieved accurate positioning of damaged steel springs in SSFST [19]. [PERSON] put forward a comprehensive thermo-vibro-acoustic evaluation, providing valuable insights into the dynamic response and sound radiation characteristics of multi-layered asphalt systems under various operating conditions [20]. [PERSON] investigated the vibration characteristics and transmission law of the polyurethane mat floating-slab track during the fatigue process by using full-scale indoor laboratory models. The results showed that the fatigue loading accelerated the degradation of the under-slab polyurethane mats, reducing the capacity of dissipating energy; the polyurethane mat floating-slab track performed better in dissipating the vibration energy along the longitudinal direction, and the fatigue loading would aggravate the vibration level [21]. [PERSON] established a novel finite element model of the longitudinally continuous slab track to assess the influences of the dual applications of anchors and coatings on the damages of the longitudinally continuous slab tracks and to identify the effectiveness of different track maintenance methods in mitigating track damages [22]. Urban rail transit elevated railways use SSFSTs to mitigate the effects of environmental vibration as well. [PERSON] studied the vibration reduction characteristics of an elevated SSFST in the time-frequency domain using finite element and field test methods [23]. [PERSON] analyzed the reduction vibration influence of SSFST parameters by establishing a three-dimensional finite element model of floating-slab-tunnel-soil and then pointed out that the FST had the vibration reduction characteristics of impeding high frequency and amplifying low frequency [24]. [PERSON] established a coupled vehicle-SSFST-bridge dynamics model using [PERSON]'s function method to investigate the dynamic response of the system in the high-frequency range [25].