## 1 Introduction  
Industrial storage is an important need in every production process. Many products are stored in industrial storage racks since they provide a solution to the efficient use of space, allowing an adequate transfer and storage of products. There are different types of racks, the most used being the selective type [1]. The structure of the racks is generally made of steel, and they are composed of columns and beams that form moment-resistant frames in the longitudinal direction (i.e., parallel to the aisles). In the cross aisle direction, the resistant system is of the reticulated type, having several levels of storage or platforms where the products are arranged [2]. To facilitate the transit of operators and customers between selective racks, they are designed narrowly in one of their two horizontal directions, cross the aisles, and parallel to the aisles, the latter being much longer. These structures are arranged within industrial warehouses with open spaces and leaving aisles between the racks to allow the loading and unloading operation. Industrial storage selective racks can be very slender in one of the two horizontal directions and can be capable of withstanding high vertical loads [3]. The foregoing means that selective racks, as well as their content, are vulnerable to seismic action, with the risk of physical damage or fatality for the people who walk near them. In Chile, after the evaluation of the damages caused by the earthquake on 27 February 2010, the identified needs arose the following actions: (i) increasing the stability of these structures; (ii) increasing the safety of the personnel and clients who operate around racks; (iii) reducing product losses and (iv) increasing the stability and serviceability of selective racks. These needs are of high interest in the industry, especially if it is found possible to maintain the continuity of operations after severe earthquakes, given the economic benefit that this entails. One solution to the vulnerability of these structures is to add bracing in the longitudinal direction of the rack, which would improve its performance [4]. However, such a solution would reduce the storage capacity, being incorporated in sacrificial bays that cannot be used for storage [5]. Worldwide there are seismic protection systems to provide solutions to structures that are vulnerable to seismic action. Several investigations have been derived from this, seeking to analyze the performance of structures with this type of system [6; 7; 8; 9]. [PERSON] et al. [10] developed a base isolation system to protect sensitive electronic equipment such as computers and servers stored on moderate to low-height shelves. Later, a solution was developed to protect industrial storage racks and the goods stored in them from seismic action, with the consequent benefit of reducing the risk of damage to the people in transit near these structures. This device consisted of an isolation system that worked in the cross-aisle direction of the racks, incorporating damping by friction plates and elastomeric bearings [11; 12]. The above was the first basal isolation device designed for industrial storage racks, whose technology has already been transferred to the industry. The motivation for this research is based on the option of complementing and improving existing alternatives of base isolation. In this regard, [PERSON] et al. [13] developed a numerical model that reproduces the behavior of a novel base isolation kinematic device (BIKD). This device has significant tensile strength, similar to that of [PERSON] et al. [14]. Unlike [PERSON]'s isolator, the device allows racks to be seismically isolated from an earthquake that attacks them in any horizontal direction. Vertically, it is vertically very rigid, and its lateral stiffness is controlled by the tension of a post-tensioned element located inside.