Design of Monolithic Truss of Tower Crane Wall Support and Pylon Column Temporary Cross Strut of Shele Bridge
| Author(s): |
J.-H. Nie
|
|---|---|
| Medium: | journal article |
| Language(s): | Chinese |
| Published in: | Bridge Construction, 2017, n. 3, v. 47 |
| Page(s): | 94-98 |
| Abstract: | The main bridge of the Shele Bridge in Taiyuan City is an irregular shape single-pylon cable-stayed bridge with spatial crisscross cable planes and with span arrangement (30+2×150+30). The inverted V-shape pylon of the bridge is 113.8 m high, of the pylon the lower columns are the reinforced concrete structures and the middle and upper columns are the steel structures. The part of the steel pylon is constructed, using the D5200-240 tower crane. The tower crane has its independent bored pile plus pile cap foundation and 1 wall support. In between the 2 pylon columns, totally 3 temporary cross struts are arranged. For the purpose of hoisting and installing the segments of the steel pylon, the tower crane wall support and the 2nd pylon column temporary cross strut are hence designed into a monolithic truss. The monolithic truss is mainly comprised of 5 parts of the truss seats, frame body, wall support members, connecting pins and jacking systems. The structural analysis software MIDAS Civil 2015 is used to respectively create the plate element models for the frame body and the steel pylon segments, the structural force conditions of the frame body and the wall support members and of the contact surfaces of the steel pylon columns and the monolithic truss are calculated and analyzed. The results show that the force conditions of the different parts can all meet the relevant requirements in the codes. |
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11/08/2020 - Last updated on:
11/08/2020
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