Clamping base of standard section main chord members

The utility model relates to a clamping base of standard section main chord members. The clamping base of the standard section main chord members comprises a pedestal, a longitudinal clamp is arranged on the pedestal and used for longitudinally clamping and positioning the main chord members and comprises two or more isolation bases arranged at intervals in the longitudinal direction, one of the isolation bases is fixed to the pedestal, and the other isolation bases are movably arranged in the longitudinal direction. The isolation bases are provided with longitudinal side faces matched with the main chord members in a pressed mode. The longitudinal clamp further comprises pressure exertion devices used for exerting longitudinal pressing force on the main chord members and the isolation bases, and the pressure exertion devices are provided with pressing positions and releasing positions, wherein the pressing positions are used for pressing the main chord members and the corresponding adjacent isolation bases in a matched mode, and the releasing positions are used for releasing the main chord members and the isolation bases from pressing. The corresponding main chord members can be arranged on the two longitudinal sides of each isolation base, the pressure exertion devices can press the main chord members and the isolation bases, and the isolation bases fixed to the pedestal can play a role in positioning; in this way, the multiple main chord members are longitudinally pressed and positioned, and can be convenient to clamp.