Beijing professional steel structure attic to build a steel frame welding

Divided into wood and steel structure, steel sheeting composite floor structure and precast reinforced concrete slab structure the Beijing Wansheng design install steel structures attic steel structure type loft Floor Deck. Steel loft design involves the attic storey control, material type, structural arrangement, steel beams and the original structure connected form slab and steel beam connection, floor shock soundproof design and steel structure rust-proof fire deal. Attic-storey control based on the total space height of the attic storey and attic of the upper and lower part of the main space clear height of not less than 2.2m, the lower part of the space is easy to use the main attic space does not affect the use of the upper appropriate. Material Type Select a plank bar or OSB LOFT board I-steel or channel 0.4 to 0.6mL shaped angle iron or channel 2 steel sheeting composite floor I-steel or channel 3 precast reinforced concrete floor H-beam. Attic steel structure steel furnished loft layout, in conjunction with the attic of the building design as well as the structure of the existing building. Consider the following aspects: to figure out the original structure of the arrangement, select a reasonable steel structure with the original structure connected position and form of connection, to avoid destruction of the original structure steel structure load. 2 steel structure of the primary and secondary steel beams arranged in conjunction with the attic of the building, renovation and installation design, to avoid or reduce secondary damage to the decoration and the installation process for steel. Steel structure layout force to clear the route of transmission of force should be clear and concise. Steel structure itself long-term creep deformation force vibration, the need for accurate analysis of the calculation, strictly control the structural deformation and vibration frequencies, to ensure that the visual appearance of structures used to eliminate the structural and human activities, such as the formation of resonance to avoid due to resonance phenomena causing structural shear fatigue damage, and at the same time so that you can protect the process of using the comfort. In the actual project, there is another form of connection is the first channel to connect through the of chemical bolts with the original structure, and then connected to the channel on the main steel beams. The structure of the force transmission of this form is not clear, and the channel with the original structure of contact does not fully reduce friction, chemical bolts with the main beam vibration severe vibration, resulting in chemical bolts premature fatigue shear failure. So it is not advisable to use this way. The floors are connected with steel beams and slabs constructed steel beams are required to do rust fireproof treatment. Floor wooden slats recommended anticorrosive fire treated wood the OSB board of the bottom of the board to do the fire handle, steel sheeting composite floor board bottom to do a rust treatment. Service hotline 010-68606232 13521962168 13683154551 Contact: Li Gong 13683154551@163.com