H-beam enlargement and reinforcing apparatus to the slab of girder bridge combining reinforcement of cross beam

摘要

The subject innovation is to install the strand on the H-shaped beam in order to enhance the load carrying capacity of the girder slab by introducing upstream of the compression force on the H-shaped beam by introducing a tensile force is transmitted the the upward compressive force to the slab to so as to enhance the load carrying capacity girder slab reinforcement vertical expansion device also serves as a reinforcing cross beam and to the load carrying capacity of the slab reinforcement method using the same.; In the girder bridge, which at regular intervals on the slab lower side of the horizontal girder beam is installed and cross beam is provided between the horizontal beam and the horizontal beam,; The cross beam surface while installed to be in close contact with both side surfaces and the slab bottom surface of the transverse beam are installed on both sides of the cross beam with a fixed fixing a cross beam reinforcement and the lower regular intervals in the cross beam reinforcement to anchor fixing the strand in the strand anchorage provided by a pair of and, so, but by installing the support bracket the cross beam supported above and to be fixed in close contact with the reinforcement installed to the screw jack to the bracket top and install the H-shaped beam thereon in close contact with the lower surface of the slab in the center between the horizontal beam provided with a predetermined interval slab by using a pair of screw jacks installed strand anchorage and installing the connection fixing a girder slab vertical expansion reinforcing device the strand and then installed to the H-shaped beam installed on the bottom slab to the support bracket is installed next to the bottom of the type of the H-beam adjusted to come into close contact with the lower surface, and then the cross beam Slabs to the introduction of tensile force on the strand provided in a lower portion of the steel material and then strand by fixing the anchorage and to tension the strand provided in strand anchorage is installed as a pair to a lower portion of the H-shaped beam introduced into the upstream of the tensile force so as to enhance the load carrying capacity of the slab It relates to the load carrying capacity reinforcing method.