There is a wide range of hot-rolled structural steel sections in the Chinese GB standards. Today we prepare some tables to show the "H" steels and their sectional properties.
![Inside of the hangar](https://static.wixstatic.com/media/09af6c_23e58272277248f18e4d0626730d29ca~mv2_d_4000_3000_s_4_2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_23e58272277248f18e4d0626730d29ca~mv2_d_4000_3000_s_4_2.jpg)
This particular hangar has an inside clear span of 20 meters, clear height of 6 meters.
![Portal frame details](https://static.wixstatic.com/media/09af6c_7ceeae19ab1c4fdf91ebe1a266dda761~mv2_d_4000_3000_s_4_2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_7ceeae19ab1c4fdf91ebe1a266dda761~mv2_d_4000_3000_s_4_2.jpg)
The portal frame can be made to any span and height to meet your requirements.
![Hangar door stiffening](https://static.wixstatic.com/media/09af6c_de1e4c23734a4359bef40d31e704dd20~mv2_d_4000_3000_s_4_2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_de1e4c23734a4359bef40d31e704dd20~mv2_d_4000_3000_s_4_2.jpg)
The large hangar door usually requires stiffening to withstand wind and gravity loads.
![Inside of the hangar](https://static.wixstatic.com/media/09af6c_23e58272277248f18e4d0626730d29ca~mv2_d_4000_3000_s_4_2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_23e58272277248f18e4d0626730d29ca~mv2_d_4000_3000_s_4_2.jpg)
This particular hangar has an inside clear span of 20 meters, clear height of 6 meters.
Domestic aircraft hangar
![Commercial Aircraft Hangar](https://static.wixstatic.com/media/09af6c_96dfd01a892647868de2203f6ef78b74~mv2_d_4032_3024_s_4_2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_96dfd01a892647868de2203f6ef78b74~mv2_d_4032_3024_s_4_2.jpg)
The final structure: 40 meters clear span, 9 meters clear height, 900 sqm of mezzanine office areas, certified for cyclone affected zone.
![Commercial Aircraft Hangar](https://static.wixstatic.com/media/09af6c_a923ed802339465d83b87e4ed3812cf1~mv2_d_4032_3024_s_4_2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_a923ed802339465d83b87e4ed3812cf1~mv2_d_4032_3024_s_4_2.jpg)
Footing and slab are prepared according to structural drawings.
![Commercial air craft hangar](https://static.wixstatic.com/media/09af6c_9c2b855af65542e090395da5eccd272c~mv2.jpg/v1/fill/w_980,h_551,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_9c2b855af65542e090395da5eccd272c~mv2.jpg)
The portal frames are being installed.
![Commercial Aircraft Hangar](https://static.wixstatic.com/media/09af6c_96dfd01a892647868de2203f6ef78b74~mv2_d_4032_3024_s_4_2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_96dfd01a892647868de2203f6ef78b74~mv2_d_4032_3024_s_4_2.jpg)
The final structure: 40 meters clear span, 9 meters clear height, 900 sqm of mezzanine office areas, certified for cyclone affected zone.
Commercial aircraft hangar
![house](https://static.wixstatic.com/media/09af6c_afd1bf633f114bbf8529f8dfb4d9d095~mv2.jpg/v1/fill/w_980,h_736,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_afd1bf633f114bbf8529f8dfb4d9d095~mv2.jpg)
![Goods distribution centre](https://static.wixstatic.com/media/09af6c_2b4889d091dc445ab198859dc8d8bc03~mv2.jpg/v1/fill/w_980,h_1307,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_2b4889d091dc445ab198859dc8d8bc03~mv2.jpg)
Pre-fabricated steelworks for an 8000 sqm warehouse with mezzanine floors. The installation time for this 600 tonnes steel structure was 40 days.
![Steel roof structure](https://static.wixstatic.com/media/09af6c_80993401e20f4c2da467da505935115b~mv2_d_2576_1932_s_2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_80993401e20f4c2da467da505935115b~mv2_d_2576_1932_s_2.jpg)
Large span steel roof structures for a tank structure. Fabricated and installed by B.S.S.
![house](https://static.wixstatic.com/media/09af6c_afd1bf633f114bbf8529f8dfb4d9d095~mv2.jpg/v1/fill/w_980,h_736,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_afd1bf633f114bbf8529f8dfb4d9d095~mv2.jpg)
Residential and commercial steelwork
![Hopper bottom silo](https://static.wixstatic.com/media/09af6c_1bf7d31b97744dd5bf3f423aafed09f0~mv2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_1bf7d31b97744dd5bf3f423aafed09f0~mv2.jpg)
The hopper of the silo is being installed. All of the steel members and sheets are straightly bolted together for extreme installation speed.
![Hopper bottom silo](https://static.wixstatic.com/media/09af6c_bc77b874ff9443fd90f95ff8eea98d8f~mv2.jpg/v1/fill/w_980,h_736,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_bc77b874ff9443fd90f95ff8eea98d8f~mv2.jpg)
The body of the silo is being installed. It only takes 2 hours to fix the cylinder on to the base.
![Final products](https://static.wixstatic.com/media/09af6c_131bd399bb1b407ea4fd156ea7b63929~mv2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_131bd399bb1b407ea4fd156ea7b63929~mv2.jpg)
A final view of the flour mill grain storage project by B.S.S. Total grain storage capacity 16,000 tonnes.
![Hopper bottom silo](https://static.wixstatic.com/media/09af6c_1bf7d31b97744dd5bf3f423aafed09f0~mv2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_1bf7d31b97744dd5bf3f423aafed09f0~mv2.jpg)
The hopper of the silo is being installed. All of the steel members and sheets are straightly bolted together for extreme installation speed.
Commercial storage silo
![chicken.feed](https://static.wixstatic.com/media/09af6c_2d4d0aed460649119c6bbdd5ab5fe24a~mv2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_2d4d0aed460649119c6bbdd5ab5fe24a~mv2.jpg)
Our highly popular 20-tonne feed silos for chicken farm.
![Feed](https://static.wixstatic.com/media/09af6c_ec2081a5f62c4ad1b5480d389888246c~mv2.jpg/v1/fill/w_980,h_607,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_ec2081a5f62c4ad1b5480d389888246c~mv2.jpg)
Our highly popular 20-tonne feed silos for chicken farm.
![Farm feed silo](https://static.wixstatic.com/media/09af6c_680ae10b70694624b88f13b6aa6e0d93~mv2_d_3024_4032_s_4_2.jpg/v1/fill/w_980,h_1307,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_680ae10b70694624b88f13b6aa6e0d93~mv2_d_3024_4032_s_4_2.jpg)
The feed silos have options like ladders and top platform for easy access. Simple but tough design to make sure years of worry-free service.
![chicken.feed](https://static.wixstatic.com/media/09af6c_2d4d0aed460649119c6bbdd5ab5fe24a~mv2.jpg/v1/fill/w_980,h_735,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/09af6c_2d4d0aed460649119c6bbdd5ab5fe24a~mv2.jpg)
Our highly popular 20-tonne feed silos for chicken farm.
Farm storage silo
![Steel Water Tank](https://static.wixstatic.com/media/09af6c_4b28356f2a6e4cbab1cca44d75ad1e4e~mv2.jpg/v1/fill/w_450,h_367,al_c,q_80,enc_avif,quality_auto/09af6c_4b28356f2a6e4cbab1cca44d75ad1e4e~mv2.jpg)
Bolted steel water tank on a concrete slab.
![Industrial water tank](https://static.wixstatic.com/media/09af6c_ea0d8207f55a4d8abb3e5ad30bffffae~mv2.jpg/v1/fill/w_600,h_214,al_c,q_80,enc_avif,quality_auto/09af6c_ea0d8207f55a4d8abb3e5ad30bffffae~mv2.jpg)
![Corrugated sheets](https://static.wixstatic.com/media/09af6c_9e2bd1125f224a5d93179cdef7ba20cf~mv2.jpg/v1/fill/w_549,h_550,al_c,q_80,enc_avif,quality_auto/09af6c_9e2bd1125f224a5d93179cdef7ba20cf~mv2.jpg)
![Steel Water Tank](https://static.wixstatic.com/media/09af6c_4b28356f2a6e4cbab1cca44d75ad1e4e~mv2.jpg/v1/fill/w_450,h_367,al_c,q_80,enc_avif,quality_auto/09af6c_4b28356f2a6e4cbab1cca44d75ad1e4e~mv2.jpg)
Bolted steel water tank on a concrete slab.
Watertanks