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A platform for research: civil engineering, architecture and urbanism
String beam structure and construction method thereof
The invention provides a string beam structure. The string beam structure comprises a fixed hinged support (1) arranged at one end of a string beam and a variable support (2) arranged at the other endof the string beam, wherein the fixed hinged support (1) is formed by reliably connecting the end where the fixed hinged support (1) is positioned with a lower supporting structure during assembly, the variable support (2) can change the constraint mode, it is ensured that the string beam can automatically slide in the horizontal direction in the tensioning stage, and the variable support is adjusted, so that the constraint mode is changed from free sliding to fixed hinging to complete the tensioning stage. The invention further provides a construction method of the string beam structure. Theconstruction method is matched with the string beam support capable of changing the constraint mode and a targeted construction process monitoring table, and the in-situ assembly and tensioning scheme of the string beam occupies a small construction site; and tensioning can be completed at a time in multiple stages, the utilization efficiency of a tensioning tool is high, the utilization efficiency of the strength of components is higher, the cross sections of main stress components such as inhaul cables and upper chords are reduced, the constraint mode of the support is improved, the methodis simple, the cost is very low, and a very good practical effect is achieved.
本发明提供了一种张弦梁结构，包括：张弦梁一端设置的固定铰接支座(1)及张弦梁另一端设置的可变支座(2)，固定铰接支座(1)为其所在的一端在拼装时与下部支承结构可靠连接形成，可变支座(2)可改变约束方式，保证张弦梁在张拉阶段可沿水平向自动滑动，并且调整可变支座，使约束方式从自由滑动改为固定铰接完成张拉阶段。还提供了张弦梁结构施工方法，配合可改变约束方式的张弦梁支座和针对性的施工过程监控表格，张弦梁原位拼装和张拉的方案对施工场地占用小；张拉可分多级一次完成，张拉工装利用效率高，构件强度利用效率更高，有利于减小拉索和上弦等主要受力构件的截面，改进支座约束方式，做法简单，成本很低，带来很好的实用效果。
String beam structure and construction method thereof
The invention provides a string beam structure. The string beam structure comprises a fixed hinged support (1) arranged at one end of a string beam and a variable support (2) arranged at the other endof the string beam, wherein the fixed hinged support (1) is formed by reliably connecting the end where the fixed hinged support (1) is positioned with a lower supporting structure during assembly, the variable support (2) can change the constraint mode, it is ensured that the string beam can automatically slide in the horizontal direction in the tensioning stage, and the variable support is adjusted, so that the constraint mode is changed from free sliding to fixed hinging to complete the tensioning stage. The invention further provides a construction method of the string beam structure. Theconstruction method is matched with the string beam support capable of changing the constraint mode and a targeted construction process monitoring table, and the in-situ assembly and tensioning scheme of the string beam occupies a small construction site; and tensioning can be completed at a time in multiple stages, the utilization efficiency of a tensioning tool is high, the utilization efficiency of the strength of components is higher, the cross sections of main stress components such as inhaul cables and upper chords are reduced, the constraint mode of the support is improved, the methodis simple, the cost is very low, and a very good practical effect is achieved.
本发明提供了一种张弦梁结构，包括：张弦梁一端设置的固定铰接支座(1)及张弦梁另一端设置的可变支座(2)，固定铰接支座(1)为其所在的一端在拼装时与下部支承结构可靠连接形成，可变支座(2)可改变约束方式，保证张弦梁在张拉阶段可沿水平向自动滑动，并且调整可变支座，使约束方式从自由滑动改为固定铰接完成张拉阶段。还提供了张弦梁结构施工方法，配合可改变约束方式的张弦梁支座和针对性的施工过程监控表格，张弦梁原位拼装和张拉的方案对施工场地占用小；张拉可分多级一次完成，张拉工装利用效率高，构件强度利用效率更高，有利于减小拉索和上弦等主要受力构件的截面，改进支座约束方式，做法简单，成本很低，带来很好的实用效果。
String beam structure and construction method thereof
一种张弦梁结构及其施工方法
XU BIN (author) / ZU YIZHEN (author) / CHEN ZHIPING (author) / MA CHAO (author) / WANG WENYUAN (author) / HUANG XIN (author) / LI SHIQUAN (author) / CHEN AIJUN (author)
2020-09-04
Patent
Electronic Resource
Chinese
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
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