Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel pipe and fish-belly sill combined type foundation pit supporting structure
The invention provides a steel pipe and fish-belly sill combined type foundation pit supporting structure. The steel pipe and fish-belly sill combined type foundation pit supporting structure is characterized in that a fish-belly sill comprises an upper chord enclosing purlin and a lower chord steel strand, wherein a web member is arranged between the upper chord enclosing purlin and the lower chord steel strand, the upper chord enclosing purlin, the lower chord steel strand and the web member form a closed fish-belly type structure, and two sets of steel pipe supports are arranged at the two ends of the fish-belly sill; the steel pipe supports correspondingly press the two ends of the fish-belly sill, and the fish-belly sill and a steel pipe form a closed stress system; the fish-belly sill is provided with a stretchable steel strand, and prestress is applied to the fish-belly sill through the stretchable steel strand; each steel pipe support is provided with a loading device, and prestress is applied to the steel pipe supports through loading devices. A pressurizing system and a variable cross-section connecting piece both can be connected with a rectangular key, so that the two ends of the fish-belly sill are supported and pressed by the steel pipes, and the closed stress system is formed on the plane; prestress is applied to the fish-belly sill by tensioning the steel strand, prestress is applied to the steel pipe supports through the pressurizing device at the ends, and finally the fish-belly sill and the steel pipe supports are effectively combined for application.
本发明提供了一种钢管与鱼腹梁组合式基坑支护结构，鱼腹梁包括上弦围檩、下弦钢绞线，上弦围檩、下弦钢绞线中间设置腹杆，上弦围檩、下弦钢绞线、腹杆形成一个闭合的鱼腹式结构，鱼腹梁的两端设置两组钢管支撑，钢管支撑分别压住鱼腹梁的两端，鱼腹梁与钢管形成一个封闭的受力体系；鱼腹梁设置有可张拉钢绞线，通过张拉钢绞线对鱼腹梁施加预应力；钢管支撑设置有加载装置，通过加载装置对钢管撑施加预应力。加压系统和变截面连接件均可与矩形键连接，从而采用钢管撑压住鱼腹梁的两端，平面上形成一个封闭的受力体系。通过张拉钢绞线对鱼腹梁施加预应力，通过端头的加压装置对钢管撑施加预应力，最终将鱼腹梁与钢管撑有效结合应用。
Steel pipe and fish-belly sill combined type foundation pit supporting structure
The invention provides a steel pipe and fish-belly sill combined type foundation pit supporting structure. The steel pipe and fish-belly sill combined type foundation pit supporting structure is characterized in that a fish-belly sill comprises an upper chord enclosing purlin and a lower chord steel strand, wherein a web member is arranged between the upper chord enclosing purlin and the lower chord steel strand, the upper chord enclosing purlin, the lower chord steel strand and the web member form a closed fish-belly type structure, and two sets of steel pipe supports are arranged at the two ends of the fish-belly sill; the steel pipe supports correspondingly press the two ends of the fish-belly sill, and the fish-belly sill and a steel pipe form a closed stress system; the fish-belly sill is provided with a stretchable steel strand, and prestress is applied to the fish-belly sill through the stretchable steel strand; each steel pipe support is provided with a loading device, and prestress is applied to the steel pipe supports through loading devices. A pressurizing system and a variable cross-section connecting piece both can be connected with a rectangular key, so that the two ends of the fish-belly sill are supported and pressed by the steel pipes, and the closed stress system is formed on the plane; prestress is applied to the fish-belly sill by tensioning the steel strand, prestress is applied to the steel pipe supports through the pressurizing device at the ends, and finally the fish-belly sill and the steel pipe supports are effectively combined for application.
本发明提供了一种钢管与鱼腹梁组合式基坑支护结构，鱼腹梁包括上弦围檩、下弦钢绞线，上弦围檩、下弦钢绞线中间设置腹杆，上弦围檩、下弦钢绞线、腹杆形成一个闭合的鱼腹式结构，鱼腹梁的两端设置两组钢管支撑，钢管支撑分别压住鱼腹梁的两端，鱼腹梁与钢管形成一个封闭的受力体系；鱼腹梁设置有可张拉钢绞线，通过张拉钢绞线对鱼腹梁施加预应力；钢管支撑设置有加载装置，通过加载装置对钢管撑施加预应力。加压系统和变截面连接件均可与矩形键连接，从而采用钢管撑压住鱼腹梁的两端，平面上形成一个封闭的受力体系。通过张拉钢绞线对鱼腹梁施加预应力，通过端头的加压装置对钢管撑施加预应力，最终将鱼腹梁与钢管撑有效结合应用。
Steel pipe and fish-belly sill combined type foundation pit supporting structure
一种钢管与鱼腹梁组合式基坑支护结构
BI PINGJUN (Autor:in) / WEI XIANG (Autor:in) / HU LIAOQI (Autor:in) / ZHENG SHAOHE (Autor:in) / WANG BINGBING (Autor:in) / SUN LE (Autor:in) / ZHU XIAOJUN (Autor:in)
01.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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