A colleague of the infected Melbourne man who left Sydney on Sunday tested positive, bringing the number of Victorian cases linked to the Sydney outbreak to two.
The country’s largest free-range br...
In the construction of steel structure project, problems and solutions are met. 1. The production and production of components. The plates used for portal steel frame are very thin, the thinnest c...
Combination method of span division calculation
According to different components, different sections and different types of internal forces, the most unfavorable internal forces are combined.Ther...
Electromagnetic radiation (EMR) exposure to the sun and artificial lighting systems represents modifiable risk factors for various health conditions, including skin cancer, skin aging, sleep and mo...
Steel is a kind of incombustible building material, which has the characteristics of earthquake resistance and bending resistance.In practical application, steel can not only increase the load cap...
Column base installation problems
(1) Problems of embedded parts (anchor bolts): overall or layout deviation; wrong lifting; no protective measures for threaded fasteners.It directly causes the ...