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A steel truss-concrete slab composite beam based on shear connection construction

A technology for concrete slabs and steel trusses, which is applied to truss bridges, bridges, bridge parts, etc., can solve the problems of a large number of connecting components of shear connectors, inconvenient construction, and low construction efficiency, and achieve high economic and social benefits. , The effect of convenient construction and low input cost

Inactive Publication Date: 2015-08-05
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a steel truss-concrete slab composite beam based on a shear connection structure, which is simple in structure, convenient in construction, reliable in connection, excellent in mechanical properties, and effective in use in view of the above-mentioned deficiencies in the prior art. Good, it can effectively solve the defects of the existing steel truss-concrete composite beams such as the large number of shear connectors, inconvenient construction, and low construction efficiency.

Method used

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  • A steel truss-concrete slab composite beam based on shear connection construction
  • A steel truss-concrete slab composite beam based on shear connection construction
  • A steel truss-concrete slab composite beam based on shear connection construction

Examples

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Embodiment 1

[0057] Such as figure 1 , figure 2 As shown, the present invention includes a steel truss arranged in a longitudinal bridge direction and a concrete slab 2 arranged directly above the steel truss, and the concrete slab 2 is arranged in a longitudinal bridge direction. The steel truss includes one or more steel truss units arranged in the longitudinal bridge direction, and a plurality of the steel truss units are arranged on the same plane from left to right along the transverse bridge direction, and the structures of the plurality of steel truss units and All have the same size and are tightly connected as one.

[0058] In this embodiment, the number of steel truss units included in the steel truss is one.

[0059] combine image 3 , Figure 3-1 and Figure 4 , the steel truss unit is a diagonal rod supported between the lower chord 1-2 and the two upper chords 1-1 by two upper chords 1-1, one lower chord 1-2 and two left and right rows An inverted triangular truss beam...

Embodiment 2

[0099] In this example, if Figure 12 As shown, the difference from Embodiment 1 is that the number of steel truss units included in the steel truss is multiple, and the upper chord 1 shared by the left and right adjacent steel truss units in the lattice type upper chord structure -1 is a shared type upper chord, and the upper chords 1-1 in the lattice type upper chord structure except the shared type upper chord are all ordinary type upper chords; The distance between the vertical perforated steel plates one 3-1 is greater than the distance between two adjacent vertical perforated steel plates one 3-1 in the common top chord.

[0100] In this embodiment, the lower chords 1-2 of the two adjacent steel truss units on the left and right are two adjacent lower chords 1-2 arranged on the same plane, and the lower chord transverse connection system 1-5 is adjacent to the left and right The two lower chords 1-2 are arranged on the same horizontal plane and include multiple lower ch...

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Abstract

The invention discloses a steel truss-concrete plate combined beam based on a shear-resisting connecting structure. The steel truss-concrete plate combined beam comprises a steel truss and a concrete plate arranged right above the steel truss, wherein the steel truss comprises one or more steel truss units; the steel truss units are inverted triangular truss beams consisting of two top chords, a lower chord and two rows of left and right diagonal web members; the two top chords are connected through a top chord transverse coupler; the top chords comprise first horizontal steel plates and a plurality of first vertical trepanned steel plates; the top chord transverse coupler comprises a plurality of top chord transverse coupling pieces; the top chord transverse coupling pieces comprise second horizontal steel plates and a plurality of second vertical trepanned steel plates; all the top chords and the top chord transverse couplers of the steel truss are formed into a grid structure type top chord structure. The steel truss-concrete plate combined beam is simple in structure, convenient to construct, reliable in connection, excellent in mechanical property and good in application effect, and defects that the conventional steel truss-concrete plate combined beam is large in the number of shear connecting piece connecting components, inconvenient to construct, low in construction efficiency and the like are effectively made up.

Description

technical field [0001] The invention belongs to the technical field of bridge construction engineering, and in particular relates to a steel truss-concrete slab composite beam based on a shear connection structure. Background technique [0002] The steel truss-concrete slab composite beam is a new type of composite structure in which the concrete slab and the steel truss are jointly stressed. It mainly uses shear connectors (such as studs, channel steel, Bending ribs, etc.), resist the lifting and relative sliding of the two at the interface, making them work together as a whole. Steel truss-concrete slab composite beams have the advantages of both steel and concrete, and have the following advantages compared with steel truss girders or reinforced concrete beams: First, the concrete slab simultaneously plays multiple roles such as bridge deck and main truss horizontal and vertical connection , partly participates in the shearing of the main truss, improves the stress condi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/00E01D19/12E01D6/00
Inventor 刘永健程高龙刚田智娟刘鸽王旭
Owner CHANGAN UNIV
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