Reinforced concrete (RC) slabs are characterized by reduced construction time, versatility, and easier space partitioning. Their structural behavior is not straightforward and, specifically, punching shear strength is a current research topic. In this study an experimental database of 113 RC slabs without shear reinforcement under punching loads was compiled using data available in the literature. A sensitivity analysis of the parameters involved in the punching shear strength assessment was conducted, which highlighted the importance of the flexural reinforcement that are not typically considered for punching shear strength. After a discussion of the current international standards, a new proposed model for punching shear strength and rotation of RC slabs without shear reinforcement was discussed. It was based on a simplified load-rotation curve and new failure criteria that takes into account the flexural reinforcement effects. This experimental database was used to validate the approaches of the current international standards as well as the new proposed model. The latter proved to be a potentially useful design tool.

钢筋混凝土（RC）平板的特点是减少了施工时间，通用性强并且更容易进行空间分配。它们的结构行为并不简单，具体地说，冲压抗剪强度是当前的研究主题。在这项研究中，使用文献中可用的数据，对113个无冲切荷载的钢筋混凝土板的实验数据库进行了编译。对冲剪强度评估中涉及的参数进行了敏感性分析，这凸显了通常不考虑用于冲剪强度的抗弯钢筋的重要性。在讨论了当前的国际标准之后，讨论了一种新的拟议的模型，该模型用于在不具有剪切补强的情况下冲切RC板的剪切强度和旋转。它基于简化的载荷-旋转曲线和新的破坏准则，其中考虑了弯曲加固效应。该实验数据库用于验证当前国际标准以及新提出的模型的方法。后者被证明是潜在有用的设计工具。