向上弯起（上部受拉）的弯矩是负弯矩，反之，向下弯起（下部受拉）的弯矩就是正弯矩。
介绍了预应力后张法负弯矩的施工与检测技术。
This paper introduces the construction and test techniques for prestressed and post-tensioned negative moment.
研究了外部U形粘贴碳纤维布加固钢筋混凝土梁负弯矩区段斜截面的受力特性。
This paper makes experimental study of stress character of reinforced concrete beam's oblique section in negative area strengthened with U-jackets carbon fiber reinforced polymer (CFRP).
连续组合梁在内支座处的负弯矩区段会出现混凝土板受拉、钢梁受压的不利局面。
Adverse condition of concrete in tension and steel joist in compression occurs at inner support regions of continuous composite steel concrete beams.
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