Lock Metal Wall to Ceiling Expansion Joint

The expansion joint cover device is installed in the building structure, which can effectively resist the infringement of external factors. In order to ensure the quality of construction projects, in addition to the inspection of basic construction equipment, the quality of the expansion joint cover should also be tested accordingly.

Generally, the quality of the expansion joint cover device can be judged from its limit state. The so-called limit state refers to a certain specified limit corresponding to the normal use or durability of the structure or structural member. When the expansion joint cover device appears in one of the following states, it shall be considered that it has exceeded the normal service limit state.

(1) Deformation that affects normal use or appearance;

(2) Partial damage (including cracks) that affects normal use or durability;

(3) Vibration affecting normal use;

(4) Other specific conditions affecting normal use.

In order to ensure the required reliability of the engineering structure, corresponding control should be carried out on the conditions based on the structural design of the expansion joint cover device. The corresponding control level is divided according to the safety level of the expansion joint cover device structure.

When ensuring that there is no problem with the expansion joint cover device, pay attention to the corresponding construction requirements and specifications during the construction. General building construction requirements are to achieve a unified reliability design, which means that the basic principles and methods of design are to make the design meet the requirements of advanced technology, economic and reasonable, safe and applicable, and to ensure quality.

In the later stage of construction, also do a good job in the supervision and quality control of the building structure:

(1) Quality control of survey and design;

(2) Quality control of materials and products;

(3) Construction quality control;

(4) Quality control of use and maintenance.