A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestressed concrete continuous beam dismantling method
The invention discloses a prestressed concrete continuous beam dismantling method, and relates to the technical field of bridge engineering. The method comprises the steps of S1 constructing a side span support, and enabling the side span support to support side spans on two sides of a continuous beam; S2 removing and transferring a mid-span closure segment; S3 removing and transferring a side span closure segment; S4 removing and transferring side span beam segments between the side span closure segment and side piers; and S5 using the side span support as a supporting structure, and sequentially and alternately removing and transferring the remaining side span beam segments and the remaining mid-span beam segments between the side span closure segment and the mid-span closure segment till all the segments of the continuous beam are dismantled. According to the method, the side span support is constructed, the mid-span closure segment and the side span closure segment are dismantled in sequence, and then the remaining side span beam segments and the remaining mid-span beam segments are dismantled alternately in sequence through the side span support. The construction cost of the side span support is low, in the whole dismantling process, a water traffic channel does not need to be blocked for a long time, and the influence on water traffic is small.
本发明公开了一种预应力混凝土连续梁拆除方法，涉及桥梁工程技术领域，该方法包括以下步骤：步骤S1，施工边跨支架，使边跨支架支撑连续梁两侧的边跨；步骤S2，拆除并转移中跨合龙节段；步骤S3，拆除并转移边跨合龙节段；步骤S4，拆除并转移边跨合龙节段与边墩之间的边跨梁节段；步骤S5，以边跨支架作为支撑结构，依次交替拆除并转移边跨合龙节段与中跨合龙节段之间剩余的边跨梁节段和中跨梁节段，直至连续梁所有节段拆除。本发明通过施工边跨支架，先依次拆除中跨合龙节段和边跨合龙节段，再通过边跨支架依次交替拆除剩余的边跨梁节段和中跨梁节段。施工边跨支架的成本较低，且整个拆除过程，无需长时间封锁水上交通航道，对水上交通影响小。
Prestressed concrete continuous beam dismantling method
The invention discloses a prestressed concrete continuous beam dismantling method, and relates to the technical field of bridge engineering. The method comprises the steps of S1 constructing a side span support, and enabling the side span support to support side spans on two sides of a continuous beam; S2 removing and transferring a mid-span closure segment; S3 removing and transferring a side span closure segment; S4 removing and transferring side span beam segments between the side span closure segment and side piers; and S5 using the side span support as a supporting structure, and sequentially and alternately removing and transferring the remaining side span beam segments and the remaining mid-span beam segments between the side span closure segment and the mid-span closure segment till all the segments of the continuous beam are dismantled. According to the method, the side span support is constructed, the mid-span closure segment and the side span closure segment are dismantled in sequence, and then the remaining side span beam segments and the remaining mid-span beam segments are dismantled alternately in sequence through the side span support. The construction cost of the side span support is low, in the whole dismantling process, a water traffic channel does not need to be blocked for a long time, and the influence on water traffic is small.
本发明公开了一种预应力混凝土连续梁拆除方法，涉及桥梁工程技术领域，该方法包括以下步骤：步骤S1，施工边跨支架，使边跨支架支撑连续梁两侧的边跨；步骤S2，拆除并转移中跨合龙节段；步骤S3，拆除并转移边跨合龙节段；步骤S4，拆除并转移边跨合龙节段与边墩之间的边跨梁节段；步骤S5，以边跨支架作为支撑结构，依次交替拆除并转移边跨合龙节段与中跨合龙节段之间剩余的边跨梁节段和中跨梁节段，直至连续梁所有节段拆除。本发明通过施工边跨支架，先依次拆除中跨合龙节段和边跨合龙节段，再通过边跨支架依次交替拆除剩余的边跨梁节段和中跨梁节段。施工边跨支架的成本较低，且整个拆除过程，无需长时间封锁水上交通航道，对水上交通影响小。
Prestressed concrete continuous beam dismantling method
一种预应力混凝土连续梁拆除方法
JIANG YONG (author) / JIANG HENG (author) / WEI KUI (author) / FAN YUANWEI (author) / KAN MINGRUI (author) / LOU SONG (author) / YANG XIANQUAN (author) / XU YING (author) / LI SHAOYUAN (author)
2021-03-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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