CN201874153U

CN201874153U - Universal steel structure truss girder

Info

Publication number: CN201874153U
Application number: CN2010205099862U
Authority: CN
Inventors: 胡茂刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-30
Filing date: 2010-08-30
Publication date: 2011-06-22
Anticipated expiration: 2020-08-30

Abstract

The utility model discloses a universal steel structure truss girder which comprises suspension members and web members, wherein the suspension members and the web members are made of profile steel; the suspension members include an upper suspension member and a lower suspension member (1 and 2); the web members include a vertical member (3) and a diagonal member (4); the vertical member (3) and the diagonal member (4) are welded between the upper suspension member and the lower suspension member (1 and 2) and connected into a whole to form the truss girder; the truss girder forms a shape like a Chinese character of ''mi'' with symmetrical four edges; male and female tenon joints (5) are arranged at both ends of the upper suspension member and the lower suspension member (1 and 2) of the truss girder; bushings (6) are welded at the two ends of the upper suspension member and the lower suspension member; and a joint device is formed by the male and female tenon joints (5) and the bushings (6). The bushings are bolted by high-strength bolts during longitudinal extension. The truss girder has a simple structure and large bearing force, is easy to obtain the material, is convenient to manufacture, is rapid to construct and disassemble, saves time and labor, and has multiple functions of using as a pillar and using as a bearing beam.

Description

Primary steel structure girder truss

Technical field

The utility model relates to girder truss, is specifically related to primary steel structure girder truss.

Background technology

Support cast-in-place case beam generally uses in bridge engineering, and the used material of support has portal support, bowl button support and steel pipe pile, shaped steel, shellfish thunder beam combined type post and beam support etc.Portal support, bowl button support are referred to as light-duty full framing, light hydraulic support is mainly by manual work, their shortcoming is that the manual work amount is very big, efficient is low, the light hydraulic support bearing capacity is limited, and stability is bad, and the whole nation is annual all can to take place because of the stable not enough security incident of collapsing of support, and portal support and bowl button cradling function be single can only to be used to set up support.Steel pipe pile, shaped steel, shellfish thunder beam sectional shelf-unit are called heavy support, and heavy support need take wide variety of materials, and investment is big, the expense height, and uneconomical, the basic stress of heavy support is a concentrated force, to ground processing requirements height, it is low that efficient is set up and removed to heavy support.

It is to link together by the negative and positive head of shellfish thunder pin with shellfish thunder sheet that existing 200 type shellfish thunder sheet girder trusses vertically connect, shellfish thunder sheet requires to have good interchangeability, thereby the accuracy of manufacture of shellfish thunder sheet requires high, the pin-and-hole pitch of holes foozle of negative and positive head requires to be controlled in 0.3 millimeter, must just can produce shellfish thunder sheet by special equipment, the cloudy head of shellfish thunder sheet is more yielding, along with shellfish thunder sheet access times increase, pin-and-hole can produce wearing and tearing, influence the bearing capacity of shellfish thunder sheet, the Yin Beilei beam adopts pin joint in addition, unavoidably produces nonelastic deformation, and span is big more, be out of shape big more, Yin Beilei adopts the pin joint mode to be difficult to be provided with camber, and the Bei Lei pin is removed difficulty, and shellfish thunder joint damages and is difficult to change.

Summary of the invention

The purpose of this utility model is: a kind of primary steel structure girder truss is provided, and simple in structure, draw materials easily, easy to make, bearing capacity is big, sets up and removes fast, and is time saving and energy saving, can do pillar and can do spandrel girder again, achieves many things at one stroke.

Technical solution of the present utility model is: girder truss comprises profound bar and web member, profound bar and web member are shaped steel, profound bar has upper and lower profound bar, web member has montant and brace, welding montant and brace between upper and lower profound bar, connect into the whole girder truss that forms, the profile of girder truss is " rice " word of four limit symmetries.

Wherein, the tongue and groove joint is set at the two ends of the upper and lower profound bar of girder truss, the two ends soldering sleeve of upper and lower profound bar, the tongue and groove joint constitutes the piecing devices of girder steel with sleeve pipe, vertically with high-strength bolt the sleeve pipe bolt is got final product during spreading.

Wherein, some holes are set on profound bar and the web member, girder truss can be done laterally to connect with bolt through hole.

Wherein, weld short steel pipes on profound bar and the web member, also girder truss can be done laterally to be connected with short steel pipes through fastener.

Wherein, weld bracing frame on profound bar and the web member, girder truss is laterally connected by bracing frame.

The utlity model has following advantage:

1, girder truss of the present invention adopts bolt and joggle way of combining, solves the existing drawback of pin connector of shellfish thunder sheet preferably, and is easy to manufacture, installs simply, and it is convenient to remove, and when being assembled into girder structure camber can also be set as required.

2, this girder truss is taller and bigger than existing 100 types and 200 type shellfish thunder profiles, materials are saved, economy, light, bring into play the bearing capacity of web member preferably, under the material condition of same weight, this girder truss is all bigger than existing 100 types and 200 type shellfish thunder bearing capacities, be that the stressed index of Unit Weight is better than existing Bei Leiliang, under the condition of the sectional area that satisfies each rod member, can also utilize second-hand old material, reduce the wasting of resources, low-carbon environment-friendly.

3, this girder truss and existing shellfish Lei Jiaqiang bar and 200 type shellfish thunders all can be used, and to the little occasion of force request, it is heavy that Bei Leiliang seems at some, and this girder truss is a kind of good substitute.

4, the girder truss two ends are provided with tongue and groove and soldering sleeve, vertically with high-strength bolt the sleeve pipe bolt get final product during spreading, and joggle is born shearing, and the sleeve pipe inner bolt bears the pulling force of profound bar, and joint damages or wearing and tearing are changed easily, and accuracy of manufacture requirement is low, and interchangeability is good.

5, some holes being set on profound bar and the web member is convenient to girder truss and does laterally to connect with bolt; Or on girder truss, weld short steel pipes, very easily the girder truss rod member is strengthened and is done laterally being connected with fastener and steel pipe; Or girder truss is done laterally to connect by special-purpose supporting frame; Girder truss is combined into three-dimensional system, adopts crisscrossly superimposedly to put together that to set up bridge full framing advantage more obvious.

Description of drawings

Fig. 1 is a Facad structure schematic diagram of the present utility model

Fig. 2 sets up the front schematic view of support for existing bowl buckle scaffold

Fig. 3 sets up the front schematic view of support for existing 200 type Bei Leiliang

Fig. 4 is for setting up the Facad structure schematic diagram of support with Fig. 1

Among the figure: profound bar on 1,2 times profound bars, 3 montants, 4 braces, 5 joggles, 6 sleeve pipes.

The specific embodiment

As shown in Figure 1, girder truss comprises profound bar and web member, profound bar and web member are shaped steel, profound bar has upper and lower profound bar 1,2, web member has montant 3 and brace 4, welding montant 3 and brace 4 between upper and lower profound bar 1,2 connect into the whole girder truss that forms, and the profile of girder truss is " rice " word of four limit symmetries.

Wherein, tongue and groove joint 5 is set at the two ends of the upper and lower profound bar 1,2 of girder truss, the two ends soldering sleeve 6 of upper and lower profound bar, tongue and groove joint 5 and sleeve pipe 6 be common to constitute piecing devices, vertically with high-strength bolt the sleeve pipe bolt is got final product during spreading.

Wherein, some holes are set on profound bar and the web member, with bolt girder truss are done laterally to connect through hole.

Wherein, weld short steel pipes on profound bar and the web member, with short steel pipes girder truss is done laterally to be connected through fastener.

For example: make up the bridge concrete cast-in-place support of a 32*10*14 rice,, consume 135 tons of materials, see Fig. 2 if set up with the bowl buckle scaffold; It is suitable to press design bearing capacity, as uses 200 type Bei Leiliang then to consume 400 of shellfish thunder sheets, consumes 129 tons of steel altogether, sees Fig. 3; It is suitable to press design bearing capacity, as uses this girder truss to consume 320 of this girder trusses, consumes 99 tons of steel altogether, sees Fig. 4, saves steel 30%, and this girder truss can also be assembled into spandrel girder and pillar.

Claims

1. primary steel structure girder truss, it is characterized in that: girder truss comprises profound bar and web member, profound bar and web member are shaped steel, profound bar has upper and lower profound bar (1,2), web member has montant (3) and brace (4), weld montant (3) and brace (4) between upper and lower profound bar (1,2), connect into the whole girder truss that forms, the profile of girder truss is " rice " word of four limit symmetries.

2. primary steel structure girder truss according to claim 1, it is characterized in that: wherein, two ends at the upper and lower profound bar (1,2) of girder truss are provided with tongue and groove joint (5), the two ends soldering sleeve (6) of upper and lower profound bar, tongue and groove joint (5) and sleeve pipe (6) constitute piecing devices jointly, vertically with high-strength bolt the sleeve pipe bolt are got final product during spreading.

3. primary steel structure girder truss according to claim 1 is characterized in that: wherein, some holes are set on profound bar and the web member, laterally connect girder truss through hole with bolt.

4. primary steel structure girder truss according to claim 1 is characterized in that: wherein, weld short steel pipes on profound bar and the web member, laterally be connected girder truss through fastener with short steel pipes.