CN206513384U - The exempting from of a kind of tunnel steelframe welds scalable one-above-the-other layout - Google Patents

The exempting from of a kind of tunnel steelframe welds scalable one-above-the-other layout Download PDF

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Publication number
CN206513384U
CN206513384U CN201621457717.XU CN201621457717U CN206513384U CN 206513384 U CN206513384 U CN 206513384U CN 201621457717 U CN201621457717 U CN 201621457717U CN 206513384 U CN206513384 U CN 206513384U
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Prior art keywords
steelframe
layout
scalable
longitudinally
telescopic connection
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CN201621457717.XU
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肖明清
焦齐柱
杨剑
廖辉
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Abstract

The utility model discloses a kind of tunnel steelframe exempt from weld scalable one-above-the-other layout, it include two parallel arrangement telescopic connection units;Each telescopic connection unit is made up of a double thread sleeve, two longitudinally connected muscle and two limiting plates;One end of dowel is provided with the external screw thread that can be connected with double thread bush whorl longitudinally in each, and the end of the other end is connected with a limiting plate vertical with its center axis;It is connected with each other between two telescopic connection units by connector, connector can be moved freely along the axis direction of connection unit;Connector is made up of two adapter sleeves being arranged parallel to and a connecting rod;Connecting hole is provided with adapter sleeve.The utility model avoids speed of application caused by welding slow, pollution, quality and is difficult to ensure the relevant issues such as card, improves installation rate, correction is flexible, it is ensured that the adjustability connected in the range of tolerance is installed in steelframe.

Description

The exempting from of a kind of tunnel steelframe welds scalable one-above-the-other layout
Technical field
The utility model is related to a kind of tunnel steelframe attachment means, belongs to tunnel steelframe technical field, and in particular to a kind of The exempting from of tunnel steelframe welds scalable one-above-the-other layout.
Background technology
At present, composite lining extensive use in China's Tunnel Engineering, according to New Austrian Tunneling Method design concept, preliminary bracing is Primary load bearing structure.The Composite Supporting System that Tunnel is made up of gunite concrete, anchor pole, steelframe etc., wherein steel Frame has larger supporting intensity and rigidity, can significantly increase preliminary bracing ability.In order to increase the overall steady of every Pin steelframes It is qualitative, it is attached between adjacent steelframe frequently with longitudinally connected reinforcing bar.Traditional longitudinally connected reinforcing bar is connected with steelframe using welding Connect, existing technology has problems with:
1st, in tunnel there is the problem of speed of application is slow in welding, not meet in the Eight Terms Guidelines of Modelling of Tunnel Excavation in Soft Rock ten The requirement of " early closing ";
2nd, welding produces a large amount of toxic gases, pollutes environment, is unfavorable for the occupational health of workmen;
3rd, because site welding is connected to overhead welding and working space is narrow, welding quality is difficult to ensure that;
4th, weld job is carried out in gas tunnel higher to air-conditioning requirement, there is certain potential safety hazard.
A kind of longitudinally connected dress of tunnel steel arch frame is disclosed in Chinese utility model patent specification CN202731940U Put, be laid with a plurality of connecting rods at equal intervals on the steel arch-shelf, the connecting rod two ends are along the steel arch-shelf axis side To the steel arch-shelf is extended, the two ends of the connecting rod are provided with screw thread in opposite direction, and steel arch-shelf is described described in adjacent two Connecting rod is connected by a sleeve, and then steel arch-shelf described in adjacent two is connected as a single entity.Adopted between the utility model steel arch-shelf With the method for threaded connection, technique is compared with traditional welding in operation complexity, operating efficiency, safety construction, quality control In terms of have larger advantage.But be due to the connecting rod length it is non-adjustable, so various types of tunnels can not be applied to The connection of road steelframe, while the single connecting rod structure cannot be used directly for the construction of tunnel steelframe.
A kind of the longitudinally connected of tunnel steel arch frame is disclosed in Chinese utility model patent specification CN205422750U Device, longitudinally connected reinforcing bar one end of the device uses crotch form, and one end uses thread forms, and crotch end is by being arranged on steel The fixed reinforcing bar of annular on bow member is fixed, and the end of thread is through the preformed hole on steel arch-shelf and using nut anchoring.This is longitudinally connected Although device easy construction, security performance is high, and usage range is wide, and the utility model is not easy to install and use, simultaneously for The installation accuracy of tunnel steelframe requires higher, this practicality may can not just be efficiently used when steelframe, which is installed, there is error new Type.
Utility model content
In view of the above-mentioned drawbacks of the prior art, the purpose of this utility model seeks to solve above-mentioned background technology not Foot there is provided a kind of tunnel steelframe exempt from weld scalable one-above-the-other layout, it is not only simple in structure and disclosure satisfy that steelframe The requirement of tolerance is installed.
In order to solve the above technical problems, the utility model employ such a tunnel steelframe exempt from weld scalable longitudinal direction Attachment means, it includes the telescopic connection unit of two parallel arrangements;Each telescopic connection unit is by one Double thread sleeve, two longitudinally connected muscle and two limiting plate compositions;One end of each longitudinally connected muscle is provided with can The external screw thread being connected with the double thread bush whorl, the end of the other end is connected with one vertical with its center axis The individual limiting plate;It is connected with each other between two telescopic connection units by connector;Set on the connector There is the connecting hole for being connected with the longitudinally connected muscle.
In a kind of preferred embodiment of the present utility model, the limiting plate is L-shaped angle steel limiting plate;The L-shaped angle Steel limiting plate includes orthogonal connecting portion and limiting section;Axis of the connecting portion along the telescopic connection unit Welded with the telescopic connection unit in direction;The axis of the limiting section and the telescopic connection unit mutually hangs down Directly.
In a kind of preferred embodiment of the present utility model, the connector is by two adapter sleeves being arranged parallel to With a connecting rod composition;The two ends of the connecting rod have been respectively and fixedly connected with the adapter sleeve, the central axis of the connecting rod with The central axis of the connecting hole is mutually perpendicular to;It is provided with the adapter sleeve for being slidably matched company with the longitudinally connected muscle The connecting hole connect.
The beneficial effects of the utility model are:The utility model is simple in construction, easy to install, even if steelframe is being installed When in the presence of certain error in the case of also can guarantee that the stabilization between steelframe is quickly connected, so as to eliminate welding, it is to avoid Speed of application caused by welding is slow, pollute, quality is difficult to ensure the relevant issues such as card;Simultaneously by setting scalable unit to connect longitudinal direction Connect and fix, improve installation rate, correction is flexible, it is ensured that install what is connected in the range of tolerance in steelframe Adjustability.
Brief description of the drawings
Fig. 1 is that a kind of steelframe for exempting to weld scalable one-above-the-other layout of tunnel steelframe of the utility model embodiment deploys And longitudinally connected arrangement schematic diagram;
Fig. 2 be a kind of tunnel steelframe of the utility model embodiment exempt from weld the longitudinally connected of scalable one-above-the-other layout Schematic device;
Fig. 3 be a kind of tunnel steelframe of the utility model embodiment exempt from weld the single connection of scalable one-above-the-other layout Cell schematics;
Fig. 4 be a kind of tunnel steelframe of the utility model embodiment exempt from weld the grid steel of scalable one-above-the-other layout Frame splices assembling space schematic diagram with one-above-the-other layout;
Fig. 5 be a kind of tunnel steelframe of the utility model embodiment exempt from weld the telescopic unit of scalable one-above-the-other layout With grid steel frame Figure of eight spatial relation schematic diagram;
Fig. 6 be a kind of tunnel steelframe of the utility model embodiment exempt from weld the profile steel frame of scalable one-above-the-other layout Splice assembling space schematic diagram with one-above-the-other layout
Fig. 7 be a kind of tunnel steelframe of the utility model embodiment exempt from weld the connector knot of scalable one-above-the-other layout Structure schematic diagram;
In figure:1- tunnels steelframe, 2- one-above-the-other layouts, the telescopic connection units of 3-, 4- connectors, 5- double threads Sleeve, the longitudinally connected muscle of 6-, 7- external screw threads, 8-limiting plate, 4a- adapter sleeves, 4b- connecting rods, 4a-1- connecting holes, 8a- connections Portion, 8b- limiting sections.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this Utility model, is not used to limit the utility model.
The exempting from of a kind of tunnel steelframe as shown in Figure 2 welds scalable one-above-the-other layout schematic diagram and understood, this practicality is newly The telescopic one-above-the-other layout 2 of type includes the telescopic connection unit 3 of two parallel arrangements;Two telescopic connections are single Connected between member 3 by mobilizable connector 4;Each telescopic connection unit 3 includes being used to adjust single connection unit The screw sleeve component of length and the limiting plate 8 for clamping tunnel steelframe;The two ends of screw sleeve component are connected with angle steel limit Position plate 8.From Fig. 3 and Fig. 4, screw sleeve component includes a double thread sleeve 5 and two carry externally threaded longitudinal direction Dowel 6;The two ends of double thread sleeve 5 have been connected through a screw thread longitudinally connected muscle 6;Longitudinally connected muscle 6 can pass through double end spiral shell The rotation of line sleeve 5 and adjust its length;It will be appreciated from fig. 6 that connector 4 includes adapter sleeve 4a and connecting rod 4b;Connecting rod 4b's Two ends have been respectively and fixedly connected with adapter sleeve 4a;Adapter sleeve 4a and screw sleeve component longitudinally connected muscle 6 are slidably connected.
During using the utility model, after the laying for completing tunnel steelframe 1, the connection of appropriate length is selected according to tunnel steelframe Device 4 complete a kind of tunnel steelframe exempt from weld the connection of two telescopic connection units 3 in scalable one-above-the-other layout;It is logical Overwinding reports double thread sleeve 5 and adjusts the length of a telescopic connection unit 3 so that being connected to telescopic connection list The limiting plate 8 at first 3 two ends can hold the cage bar of adjacent tunnel steelframe 1 so that the cage bar of tunnel steelframe 1 bears pulling force;Pass through Rotation states double thread sleeve 5 and adjusts the length of another telescopic connection unit 3 so that being connected to another connection The limiting plate 8 at the two ends of unit 3 can withstand the middle part of adjacent tunnel steelframe 1 so that being connected in the middle of the Figure of eight of tunnel steelframe 1 Bear pressure in place;The pressure provided by two connection units 3 produces frictional force to fix scalable longitudinal direction on limiting plate 8 Attachment means, and the displacement of steelframe is limited, as shown in figure 5, the structure after the utility model installation is as shown in figure 1, in tunnel One one-above-the-other layout 2, interlaced arrangement are installed every constant spacing on road steelframe 1.
In the present invention, limiting plate 8 can be variously-shaped structure, as long as the two ends of tunnel steelframe can be blocked, and Tunnel steelframe in the present invention can be that grid steel frame can also be profile steel frame.
It should be appreciated that described above, embodiment only of the present utility model, but protection of the present utility model Scope is not limited thereto, and any those skilled in the art, can be light in the technical scope disclosed by the utility model The change or replacement being readily conceivable that, should all cover within protection domain of the present utility model.

Claims (3)

1. the exempting from of a kind of tunnel steelframe welds scalable one-above-the-other layout, it is characterised in that:Including two parallel arrangement can Flexible connection unit (3);Each telescopic connection unit (3) is connected by a double thread sleeve (5), two longitudinal directions Connect muscle (6) and two limiting plate (8) compositions;One end of each longitudinally connected muscle (6) is provided with can be with the double thread The external screw thread (7) that sleeve (5) screw thread is connected, the other end is connected with the limiting plate vertical with its center axis (8);It is connected with each other between two telescopic connection units (3) by connector (4);Set on the connector (4) There is the connecting hole (4a-1) for being connected with the longitudinally connected muscle (6).
2. the exempting from of a kind of tunnel steelframe according to claim 1 welds scalable one-above-the-other layout, it is characterised in that:Institute Limiting plate (8) is stated for L-shaped angle steel limiting plate;The L-shaped angle steel limiting plate includes orthogonal connecting portion (8a) and limiting section (8b);Axis direction of the connecting portion (8a) along the telescopic connection unit (3) and the telescopic connection are single First (3) welding;The axis of the limiting section (8b) and the telescopic connection unit (3) is mutually perpendicular to.
3. the exempting from of a kind of tunnel steelframe according to claim 1 welds scalable one-above-the-other layout, it is characterised in that:Institute Connector (4) is stated to be made up of two adapter sleeves being arranged parallel to (4a) and a connecting rod (4b);The connecting rod (4b) Two ends be respectively and fixedly connected with the adapter sleeve (4a), the central axis of the connecting rod (4b) with the connecting hole (4a-1) Heart axis is mutually perpendicular to;It is provided with the adapter sleeve (4a) for the company with longitudinally connected muscle (6) sliding connection Connect hole (4a-1).
CN201621457717.XU 2016-12-28 2016-12-28 The exempting from of a kind of tunnel steelframe welds scalable one-above-the-other layout Active CN206513384U (en)

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CN201621457717.XU CN206513384U (en) 2016-12-28 2016-12-28 The exempting from of a kind of tunnel steelframe welds scalable one-above-the-other layout

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Application Number Priority Date Filing Date Title
CN201621457717.XU CN206513384U (en) 2016-12-28 2016-12-28 The exempting from of a kind of tunnel steelframe welds scalable one-above-the-other layout

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107829551A (en) * 2017-10-19 2018-03-23 刘振勇 Multifunctional hand foot stool for tunnel maintenance
CN108571334A (en) * 2018-04-11 2018-09-25 北京市政建设集团有限责任公司 Longitudinally connected attachment device and its application method between a kind of grillage
CN110424987A (en) * 2019-07-30 2019-11-08 周建辉 It is a kind of to be convenient for the device fixed to steel arch-shelf for constructing tunnel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107829551A (en) * 2017-10-19 2018-03-23 刘振勇 Multifunctional hand foot stool for tunnel maintenance
CN107829551B (en) * 2017-10-19 2019-10-25 刘振勇 Multifunctional hand foot prop for tunnel maintenance
CN108571334A (en) * 2018-04-11 2018-09-25 北京市政建设集团有限责任公司 Longitudinally connected attachment device and its application method between a kind of grillage
CN110424987A (en) * 2019-07-30 2019-11-08 周建辉 It is a kind of to be convenient for the device fixed to steel arch-shelf for constructing tunnel

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