Structure Steel Engineering Construction Phase

1, when Hainan steel construction method or construction sequence have a greater impact on the internal forces and deformation of the structure, design documents or have special requirements, the construction phase should be carried out structural analysis and strength to deal with the construction phase structure, stability and rigidity conduct checking, checking their results should meet the design requirements.
2, Hainan Steel construction phase load effect combinations and load factors structural analysis values ​​shall conform to the relevant provisions of the current national standard "Building structure Load Code" GB50009. Like.
3, the construction phase analysis of the structure importance factor of not less than 0.9, an important temporary support structure importance coefficient of not less than 1.0.
4, the construction phase loads, structural analysis model and basic assumptions should be consistent with the actual construction situation. Construction phase structure should press statics elastic analysis.
5, loading the temporary support structure and construction measures should the situation of the construction phase, should be carried out on the member strength, stability and rigidity checking, connection node should be the strength and stability in design. When the temporary support structure as a device bearing structure should be of special design. When the temporary support structure or measures have a greater impact on the structure, shall be submitted to confirm the original design unit.
6, removal order, and step through the temporary support structure should be analyzed and calculated and determined, and shall prepare special construction program, if necessary by experts.
7, Hainan steel for lifting the state member or a structural unit, should the strength, stability and deformation analysis, dynamic factor should take 1.1 to 1.4.
8, cable structures and cable installation tension sequence should be determined by analysis and calculation, and shall prepare special construction program, the results should be confirmed by the original design unit.
9, ground floor or supporting mobile lifting equipment should be checking the bearing capacity and deformation. When the support is in the slope of the ground or near the slope, slope stability should be checking.