1 / 45

COMPRESSION FIELD THEORY FOR SHEAR STRENGTH IN CONCRETE

tekli
Download Presentation

COMPRESSION FIELD THEORY FOR SHEAR STRENGTH IN CONCRETE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. COMPRESSION FIELD THEORY FOR SHEAR STRENGTH IN CONCRETE

    8. ASSUMPTIONS ABOUT SHEAR STRENGTH The beam fails when the concrete in the struts reaches its crushing strength. At failure, the beam has shear cracks and the cracks have opened This would cause the stirrups to yield. The compressive strength of concrete between the shear cracks (struts) is less than fc’.

    16. MODIFIED COMPRESSION FIELD THEORY

    19. MODIFIED COMPRESSION FIELD THEORY AND THE LRFD CODE

    41. Interface Shear The factored horizontal shear (Loading), Vh = Vu / dv (LRFD C5.8.4.1-1) Vh ? ?Vn and ? = 0.9 Nominal resistance:

    42. Interface Shear Nominal resistance:

    43. Interface Shear Limits on Vn: Vn ? 0.2 f’c Acv or 0.8 Acv Use the deck concrete strength for f’c.

    44. Interface Shear Minimum steel requirement (LRFD 5.8.4.1-4):

    45. Interface Shear - Example

More Related