opening window design of curtain wall

The design procedure of curtain wall opening window should be developed around its three standard working forms, which can be divided into “functional” and “structural” parts for design respectively:

The functional design of the opening window mainly describes the opening and closing process of the opening window and its related effects and functions. In brief, it roughly contains the following contents: The design of opening and closing trajectory, which mainly describes the running trajectory and the starting and stopping positions of the curtain wall glazing active components. These parameters are used to determine whether the active components of the curtain wall will collide or interfere in the process of movement, whether their starting and stopping positions can meet the requirements of installation technology or use function, and whether the window sash can open and close normally when reaching the in-plane deformation level. The opening and closing force of the curtain wall facade can be calculated by the parameters such as its mass, opening and closing position and the friction force of opening hardware fittings.

According to the man-machine relationship principle, the standard arm force value of the operator during opening and closing operation can be determined according to the indoor installation height of the curtain wall opening window. If the lifting and closing force exceeds the operator’s standard arm force value, it is necessary to change the opening mode or use additional transmission devices; The possible abnormal state of modern curtain wall design should be analyzed under the three working forms, and targeted safety measures should be taken according to the probability of abnormal state of curtain wall opening window and the resulting influence.
The value of wind load of the curtain wall opening window under the open state is not clearly stipulated, but it can still be calculated by referring to the cornice and other protruding components in the load code. Considering the probability that the window sash will be opened or forgotten to lock in extreme weather, and if it falls off, it will cause serious safety problems, so it needs to be strictly controlled. It is suggested that under the action of wind load standard value, the open fan shall not appear connection failure and fall off, and shall not appear irreversible deformation, damage and changes affecting the normal opening function. Due to the operating characteristics of the curtain wall frame, there is no limitation on the deflection of the open opening fan. You can, however, require physical experimentation to test the reliability of a form connection.