Steel-concrete composite beams, when requested by negative moment, can fail due to Lateral Distortional Buckling (LDB), local buckling, by a combination of these stability modes or achieve the plastic behavior. LDB is a mode of stability in which the web must distort in order for the compression flange to displace and twist during buckling. Several papers were published in an attempt to clarify the LDB behavior of steel-concrete composite beams. These papers can be divided into two strands of studies. The first that seeks to investigate the elastic behavior of the LDB, in an attempt to determine the elastic critical moment, through bifurcational equilibrium analyzes. And the second strand, which investigates the LDB strength of steel-concrete composite beams, through the development of experimental investigations or by non-linear numerical analyzes. However, there is still no consensus regarding the behavior of LDB in steel-concrete composite beams. Researchers who investigated the elastic behavior of LDB show divergences between the methodologies for determining the elastic critical moment. Furthermore, the publications that are aimed at investigating the LDB strength, show inconsistencies in the standard procedures. Therefore, the main objective of this article is to present a critical review about LDB in steel-concrete composite beams. For this purpose, the main studies that analyzed the elastic and inelastic behavior of LDB are presented, in addition to an overview of the main standard procedures. Finally, the future research directions have been discussed, presenting parameters that still need further investigation.

钢混凝土组合梁在受到负弯矩的要求时，可能会由于横向变形屈曲（LDB），局部屈曲而失效，这是由于这些稳定性模式的组合或达到了塑性性能。LDB是一种稳定模式，其中腹板必须变形以使压紧法兰在屈曲过程中移位和扭曲。为了阐明钢混凝土组合梁的LDB行为，发表了几篇论文。这些论文可以分为两部分。第一个试图通过分叉平衡分析来研究LDB的弹性行为，从而确定弹性临界矩。第二个是研究钢混凝土组合梁的LDB强度，通过开展实验研究或通过非线性数值分析。但是，关于LDB在钢混凝土组合梁中的性能仍未达成共识。研究LDB弹性行为的研究人员表明，确定弹性临界力矩的方法之间存在分歧。此外，旨在调查LDB实力的出版物在标准程序中显示出不一致之处。因此，本文的主要目的是对钢混凝土组合梁中的LDB进行重要的评论。为此，除了对主要标准程序的概述之外，还提供了分析LDB的弹性和非弹性行为的主要研究。最后，讨论了未来的研究方向，