A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In-vivo cable distribution prestress giant reticulated shell structure
The invention discloses an in-vivo cable distribution prestress giant reticulated shell structure. The in-vivo cable distribution prestress giant reticulated shell structure comprises a crossed three-dimensional truss system cylindrical surface giant reticulated shell and a prestress cable system arranged in the crossed three-dimensional truss system cylindrical surface giant reticulated shell three-dimensional truss; the prestress cable system is composed of prestress cable pairs arranged in all three-dimensional truss sections of the giant reticulated shell; each prestressed cable pair is composed of two symmetrically-arranged Y-shaped cables; one end of each Y-shaped cable is anchored to the middle node of the lower chord of the three-dimensional truss section, and two branches of the other end of each Y-shaped cable are anchored to the two upper chord nodes of the end part of the three-dimensional truss section. According to the in-vivo cable distribution prestress giant reticulated shell structure, supporting rods do not need to be arranged, the problem of supporting rod instability caused by too long supporting rods due to too large structural span is solved, the middle inhaul cables are connected through the pulleys, the inner cable force of the middle inhaul cables can be automatically adjusted, and therefore, it is guaranteed that prestress distribution on the two sides in a prestress cable set is the same, and the prestress acting effect is more obvious; and the pre-stress value of the inhaul cable in each three-dimensional truss section can be respectively adjusted according to actual engineering requirements, so that structural design is facilitated.
本发明公开了一种体内布索预应力巨型网壳结构，包括交叉立体桁架系柱面巨型网壳和布置于交叉立体桁架系柱面巨型网壳立体桁架内部的预应力索系，所述预应力索系由布置于所述巨型网壳各立体桁架段内部的预应力索对构成，所述预应力索对由对称布置的两根Y形索构成，所述Y形索一端锚固于所述立体桁架段下弦中间节点、另一端两分支锚固于所述立体桁架段端部两上弦节点。本发明无需布置撑杆，避免了结构跨度过大使得撑杆过长而导致的撑杆失稳问题，中部拉索通过滑轮连接，可自动调节中部拉索内索力，从而保证预应力索组内两侧预应力分布相同、使预应力作用效果更明显，且各立体桁架段内拉索预应力值可按实际工程需要分别调节，便于结构设计。
In-vivo cable distribution prestress giant reticulated shell structure
The invention discloses an in-vivo cable distribution prestress giant reticulated shell structure. The in-vivo cable distribution prestress giant reticulated shell structure comprises a crossed three-dimensional truss system cylindrical surface giant reticulated shell and a prestress cable system arranged in the crossed three-dimensional truss system cylindrical surface giant reticulated shell three-dimensional truss; the prestress cable system is composed of prestress cable pairs arranged in all three-dimensional truss sections of the giant reticulated shell; each prestressed cable pair is composed of two symmetrically-arranged Y-shaped cables; one end of each Y-shaped cable is anchored to the middle node of the lower chord of the three-dimensional truss section, and two branches of the other end of each Y-shaped cable are anchored to the two upper chord nodes of the end part of the three-dimensional truss section. According to the in-vivo cable distribution prestress giant reticulated shell structure, supporting rods do not need to be arranged, the problem of supporting rod instability caused by too long supporting rods due to too large structural span is solved, the middle inhaul cables are connected through the pulleys, the inner cable force of the middle inhaul cables can be automatically adjusted, and therefore, it is guaranteed that prestress distribution on the two sides in a prestress cable set is the same, and the prestress acting effect is more obvious; and the pre-stress value of the inhaul cable in each three-dimensional truss section can be respectively adjusted according to actual engineering requirements, so that structural design is facilitated.
本发明公开了一种体内布索预应力巨型网壳结构，包括交叉立体桁架系柱面巨型网壳和布置于交叉立体桁架系柱面巨型网壳立体桁架内部的预应力索系，所述预应力索系由布置于所述巨型网壳各立体桁架段内部的预应力索对构成，所述预应力索对由对称布置的两根Y形索构成，所述Y形索一端锚固于所述立体桁架段下弦中间节点、另一端两分支锚固于所述立体桁架段端部两上弦节点。本发明无需布置撑杆，避免了结构跨度过大使得撑杆过长而导致的撑杆失稳问题，中部拉索通过滑轮连接，可自动调节中部拉索内索力，从而保证预应力索组内两侧预应力分布相同、使预应力作用效果更明显，且各立体桁架段内拉索预应力值可按实际工程需要分别调节，便于结构设计。
In-vivo cable distribution prestress giant reticulated shell structure
一种体内布索预应力巨型网壳结构
HE YONGJUN (author) / WANG JIXIN (author) / ZHOU XUHONG (author)
2020-12-18
Patent
Electronic Resource
Chinese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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