Vertical restraint structure of cross steel support joints
A technology of restraint structure and steel support, which is applied in the direction of basic structure engineering, excavation, construction, etc., can solve the problems of unfavorable foundation pit safety support, poor control of axial force, and decreased support effect, and achieves fast and convenient fixing process The effect of moving in place and ensuring accuracy
Inactive Publication Date: 2020-04-10
CHINA FIRST METALLURGICAL GROUP
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Problems solved by technology
[0002] The horizontal steel support and the longitudinal steel support in the traditional foundation pit steel support are arranged on the same plane. Therefore, there is often the danger of being twisted at the intersection of the horizontal steel support and the longitudinal steel support, which is not conducive to the safe support of the foundation pit. , in order to avoid the mutual interference of horizontal and vertical steel supports at the intersection joints, some foundation pit steel supports adopt a vertically detached cross steel support structure, that is, the horizontal steel support and the longitudinal steel support are separated up and down, and are set on two support surfaces with different elevations However, in this type of cross-steel support structure with up and down detachment, due to the complete loss of restraint between the horizontal steel support and the longitudinal steel support, the axial force is not easy to control, the stability is weakened, and the support effect is reduced. Moreover, the cross-steel support The vertical height is not easy to control, which is not conducive to the design and installation of accompanying support systems such as purlins and columns
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[0020] Below by embodiment, in conjunction with accompanying drawing, the technical scheme of the present invention is described further specifically, as Figure 1-4 As shown, a vertical restraint structure of a cross steel support node, including a transverse steel 1 and a longitudinal steel 2, the middle part of the transverse steel 1 is provided with a movable groove 3 that penetrates up and down, and the inner width of the movable groove 3 is greater than the width of the outlet at both ends. The slot 3 is provided with a stop bar 4 that passes vertically, and the stop bar 4 is located in a section of the rod body in the movable slot 3, and the bottom periphery is fixedly connected with a first stop ring 6, and the top is provided with a second stop ring 8 , the first limit ring 6 and the second limit ring 8 are connected by a spring 7, the limit rod 4 is located at the bottom of the movable groove and is provided with a block 9, and the upper surface of the longitudinal st...
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The invention provides a vertical restraint structure of cross steel support joints. The vertical restraint structure comprises horizontal steel and longitudinal steel and is characterized in that a movable groove running up and down is formed in the middle part of the horizontal steel, and the inner width of the movable groove is larger than the width of outlets in the two ends; a limiting rod passes through the inner part of the movable groove vertically; a segment of rod body of the limiting rod is positioned in the movable groove, the periphery of the bottom is fixedly connected with a first limiting ring, a second limiting ring is arranged at the top in a sleeved mode, and the first limiting ring is connected with the second limiting ring through a spring; a fixture block is arrangedat the bottom, positioned under the movable groove, of the limiting rod, and a clamping groove matched with the fixture block is formed in the upper surface of the longitudinal steel; a handle is arranged at the top, positioned above the movable groove, of the limiting rod; and the horizontal steel and the longitudinal steel are further fixed through an inclined strut fixing mechanism and a standcolumn fixing mechanism. The structure drives the limiting rod to move by pulling the handle to facilitate material movement and positioning, and the accuracy of positioning is guaranteed by the prearranged adaptive limiting block and clamping slot.
Description
technical field [0001] The invention belongs to the field of foundation pit support, and in particular relates to a vertical restraint structure of a cross steel support node. Background technique [0002] The horizontal steel support and the longitudinal steel support in the traditional foundation pit steel support are arranged on the same plane. Therefore, there is often the danger of being twisted at the intersection of the horizontal steel support and the longitudinal steel support, which is not conducive to the safe support of the foundation pit. , in order to avoid the mutual interference of horizontal and vertical steel supports at the intersection joints, some foundation pit steel supports adopt a vertically detached cross steel support structure, that is, the horizontal steel support and the longitudinal steel support are separated up and down, and are set on two support surfaces with different elevations However, in this type of cross-steel support structure with u...
Claims
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IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 陈晓伟杨胜文张虹波周吉徐钟园
Owner CHINA FIRST METALLURGICAL GROUP