张海梅
(上海电子工程设计研究院有限公司，上海200023)

[摘要] 分析了钢-混凝土组合楼板开裂的原因，阐述了聚丙烯纤维在混凝土中的阻裂作用，并以若干工程实例验证了组合楼板各种抗裂措施的效果，认为采用在混凝土中掺入低量聚丙烯纤维的综合措施，抗裂效果更好。
[关键词] 聚丙烯纤维；组合楼板；约束应力；裂缝；纤维混凝土

Application of Polypropylene Fiber in Anti-crack of Composite Floor
Zhang Haimei
( Shanghai Electronic Engineering Design and Research Institute CO. ,LTD., Shanghai 200023, China)

Abstract: This paper analyzes the reasons of crack for steel-concrete composite floor, and describes the anti-crack effect of polypropylene fiber in concrete. During the description, the paper quote some engineering examples to prove the real effect of anti-crack measures for composite floor. In conclusion, it has more better anti-crack effect for compositive measure when concrete mix with low quantity of polypropylene fiber.
Keywords: polypropylene fiber; composite floor; restraint stress; crack; fiber concrete