User talk:Nanyuliaode

The outer frame with cantilevered I-beam construction
scaffolding

How to calculate the bearing capacity of the scaffolding structure?

Pick steel external scaffolding and construction method of calculation: (A) program selection

The outer frame with cantilevered I-beam construction, steel, fasteners, safety nets, rope and other materials for erection.

(B) of the construction process:

→ interspersed embedded cantilever I-beam construction floor → → erection of welded steel bottom frame body positioning → Canada → shop stayed steel wire rope net, safety net.

(C) erection methods:

Erection methods, see the overhead layer cantilever erection outside the scope of frame layout.

(D) technical details

1, before lashing Ligament in elevated levels by elevated levels laid cantilevered cantilevered outer frame layout with the reinforced outer frame, which includes board interspersed with steel I-beam, steel outer frame corner support. 2, subject to the cantilever layer of concrete to be interspersed when the design strength of the upper outer frame beam erection. 3, the cantilevered frame pole pitch, respectively: see elevated levels cantilevered longitudinal outer frame layout, horizontal @ 1050, step rails 1800. 4 pole spacing in order to ensure uniformity of outer frame, body frame and tidy appearance. Outer frame made into a simple truss off the shelf in order to adjust the pole pitch and ensure that the load transfer to the beam on the pole. 5, each pole on the I-beam under the double steel side by side, each pole are falling side by side double pipe, welded steel pipe sleeve with bearing on steel. Specifically see the figure below. 6, each set with wall bars, and even see the wall under the rod connection diagram, with the wall at intervals of around 6000 set up a rod. 7, the corner can not pick the beam outside the frame, the use of steel supports, erection every way to uninstall the second floor, as shown on the left. This approach required the outer layers of overhead aircraft location as at the rack layout: 200mm from the surface of ledger beam erection began. Step frame adjacent to a large bar in the pole should be staggered layout of the inside and outside guillotine. Pole and a large buckle fastener cross-bar must not be set or omissions in every step. 10, a small bar close to the pole setting, take in a large crossbar. Between the pole may need to install a small bar, but in no case shall the removal of a small bar close to the pole. 11, scissors along the continuous arrangement of elevated, oblique angle with the ground rod 45ο ~ 60ο, each additional 6 pole start, bridging both ends of the oblique stroke than with the outer frame with a rotating fastener is connected, but in between shall be deducted an additional 2 to 4 nodes. 12, each cantilevered section of steel mesh plates spread layers of not more than 8 layers, the operating level for the two layers. 13, pole, large bar shown to the right above the joint position, set the length of pipe should pay attention to the selection. 14, horizontal oblique rod, set in a wall or pole-step frame plane, people outside the frame to enhance the lateral stiffness. 15, cantilever rack hanging over the external safety net.

(E) security

Security personnel should be under the supervision of technical personnel and skilled workers in charge of the erection; scaffolding check points and acceptance inspection, regular inspections and special inspections; use to strictly control the load on the shelf, as far as possible the uniform distribution, in order to avoid overloading the local or overall overload; Shihai special attention to the shelf with the original structure and the state, demolition of any structure is prohibited, and even the wall bar Rachel and protection facilities. Fall outside the shed to pick anti-aircraft: the beginning of each frame layer cantilever erection, the use of shading devices in the form of a direct fall to prevent heavy objects.

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