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| CONSTRUCTION TECHNIQUE OF PRE-CASTING FOR PRE-STRESSED CONCRETE SIMPLE-SUPPORTED BEAM WITH LONG SPAN PRE- TENSIONED BROKEN-LINE |
| HE Min-suo， MA Xin-an，CAO Xin-gang |
| The First Engineering Bureau Group Co. Ltd of Chinese Railway |
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Abstract Pre-stressed concreted simple-supported beam pre-casting with 24 m pre-tensioned broken-line reinforcement is a new type structure which is first adopted at home and one of the new technologies adopted on Qinghai-Tibet Railway，with high technical level,new construction technique and great construction difficulties. Based on its technological features and construction requirement, the techniques for pre-stressed concrete and the control value of durable concrete construction are well worth spreading to use and studying.
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Received: 20 March 2004
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2004, Vol. 21 
