阅读说明：本技术 一种用于桥梁中分带的防抛网 (It is a kind of for dividing the anti-throwing net of band in bridge ) 是由 梁浩 吴敦彬 邓亮亮 杜旭飞 要海亮 于博 任秉龙 闫立来 于 2019-10-14 设计创作，主要内容包括：本发明公开了一种用于桥梁中分带的防抛网,半椭圆形防抛网采用跨越的方式锚固在左右幅桥梁内侧防撞墙护栏顶端且覆盖桥梁中分带。本发明适用于建造初期无防抛网设计的桥梁,具有更小的迎风面积,较现有常用防抛网面积减少约71％,防止物体抛落的同时,能够避免抛物反弹进入车道影响交通安全。可应用于分幅桥梁中分带混凝土防撞墙、组合式护栏上加装防止抛落物影响桥下行车安全的防抛设施。(The invention discloses a kind of for dividing the anti-throwing net of band in bridge, and the anti-throwing net of half elliptic, which is anchored on the inside of the width bridge of left and right by the way of crossing over, divides band in anti-collision wall guardrail top and covering bridge.Bridge of the present invention suitable for construction initial stage without anti-throwing net design has smaller front face area, more existing to commonly use anti-throwing web area reduction about 71%, while preventing object from leaving, can be avoided parabolic and springs back into lane influence traffic safety.Can be applied in framing bridge divide prevents anti-cast for leaving object influence bridge down train safety from applying with installation on concrete anti-collision wall, combined type guard bar.)

1. a kind of for dividing the anti-throwing net of band in bridge, which is characterized in that the anti-throwing net of half elliptic is anchored by the way of crossing over Divide band in anti-collision wall guardrail top and covering bridge on the inside of the width bridge of left and right.

2. according to claim 1 for dividing the anti-throwing net of band in bridge, which is characterized in that the anti-throwing net of half-oval shaped Cartouche long axis be 66cm, short axle 40.8cm.

3. according to claim 2 for dividing the anti-throwing net of band in bridge, which is characterized in that the anti-throwing net of half-oval shaped Using L50X32X4 angle steel, a pair of two-by-two and spacing 2m is anchored at the top of concrete anti-collision wall.

4. according to claim 3 for dividing the anti-throwing net of band in bridge, which is characterized in that the anti-throwing net of half-oval shaped Mesh sheet is supported using the steel plate of 50x4 in the centre of anchoring angle steel spacing.

5. according to claim 4 for dividing the anti-throwing net of band in bridge, which is characterized in that the anti-throwing net of half-oval shaped Braided mesh size 30x40cm.

6. according to claim 5 for dividing the anti-throwing net of band in bridge, which is characterized in that the anti-throwing net of half-oval shaped Anchoring angle steel is welded on the steel plate base of 160x160cm.

7. according to claim 6 for dividing the anti-throwing net of band in bridge, which is characterized in that the steel plate base is using expansion Bolt is anchored in concrete anti-collision wall.

8. according to claim 7 for dividing the anti-throwing net of band in bridge, which is characterized in that the steel plate base anchoring expansion Bolt is symmetrically anchored quadrangle at away from steel plate edge 3cm using four M16X120.

9. according to claim 8 for dividing the anti-throwing net of band in bridge, which is characterized in that the angle steel of welding Junk prevention net, Steel plate support and mesh sheet soak the preservative treatment measure of modeling using first galvanizing by dipping again, and leaching modeling layer is with a thickness of 0.5~0.6mm.

Technical field

It is the invention belongs to anti-throwing network technology field, in particular to a kind of for dividing the anti-throwing net of band in bridge, specifically one Kind increases the anti-throwing net of half elliptic in the framing type formula bridge of left and right at point band.

Technical background

A point band, which is prevented casting applying, in existing highway framing type bridge mostly uses upright anti-throwing web form.For example, concrete structure It is mostly be anti-collision wall top surface be arranged the anti-throwing net of vertical type, steel reinforced concrete combination anti-collision wall the anti-throwing of vertical type is set mostly on the outside of anti-collision wall Net, and in point band a two sides anti-collision wall be both needed to be arranged.For the anti-throwing net of vertical type because highly higher, front face area is larger, so to guarantee Safety, need to when anti-collision wall pours the attachmentes such as preburied column, ring flange or foundation bolt, attachment quantity is more, and cost is higher. Vertical type anti-throwing net needs to carry out when newly-built pre-buried, and it is more difficult when being further added by that the later period is in need.The anti-throwing net of vertical type is being driven a vehicle Because easily entering fast and runway after highly higher item rebound when parabolic, traffic safety is seriously affected.

Summary of the invention

It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, provide a kind of for dividing the anti-throwing of band in bridge Net is a kind of for dividing band is anti-to cast the anti-throwing net of abnormity applied in increasing on being completed bridge, is anchored by the way of leap Divide band in anti-collision wall guardrail top and covering bridge on the inside of the width bridge of left and right.Anti- throwing net provided by the invention is suitable for building just Phase without the anti-bridge for throwing net design, has smaller front face area, more existing to commonly use anti-throwing web area reduction about 71%, prevents object While body leaves, it can be avoided parabolic and spring back into lane influence traffic safety.

Technical solution is as follows:

It is a kind of for dividing the anti-throwing net of band in bridge, which is characterized in that the anti-throwing net of half elliptic using cross over by the way of anchor Gu dividing band in anti-collision wall guardrail top and covering bridge on the inside of the width bridge of left and right.

Further, the anti-cartouche long axis for throwing net of the half-oval shaped is 66cm, short axle 40.8cm.

Further, the anti-throwing net of the half-oval shaped is a pair of two-by-two using L50X32X4 angle steel and spacing 2m be anchored at it is mixed The top of solidifying soil anti-collision wall.

Further, the anti-steel plate supporting network for throwing net in the centre of anchoring angle steel spacing using 50x4 of the half-oval shaped Piece.

Further, the anti-braided mesh size 30x40cm for throwing net of the half-oval shaped.

Further, the anti-steel plate base thrown net anchoring angle steel and be welded on 160x160cm of the half-oval shaped.

Further, the steel plate base is anchored in concrete anti-collision wall using expansion bolt.

Further, the steel plate base anchoring expansion bolt uses the quadrangle at away from steel plate edge 3cm four M16X120 Symmetrical anchoring.

Further, angle steel, steel plate support and the mesh sheet for welding Junk prevention net soak the anti-corrosion of modeling using first galvanizing by dipping again Treatment measures, leaching modeling layer is with a thickness of 0.5~0.6mm.

The present invention provides a kind of simple possible, anti-cast of point band is applied in separate type bridge convenient to carry out, suitable for building Initial stage is made without the anti-bridge for throwing net design, there is smaller front face area, it is more existing to commonly use anti-throwing web area reduction about 71%, prevent While only object leaves, it can be avoided parabolic and spring back into lane influence traffic safety.It can be applied in framing bridge divide band Installation prevents anti-cast for leaving object influence bridge down train safety from applying on concrete anti-collision wall, combined type guard bar.

Detailed description of the invention

Fig. 1 is for the schematic top plan view after dividing the anti-throwing net of band to install in bridge.

Fig. 2 is for the schematic cross-section after dividing the anti-throwing net of band to install in bridge.

Fig. 3 be in embodiment 1 step 3 to the angle steel installation process schematic diagram of step 4.

Description of symbols:

The first L50X32X4 angle steel of 1-, the support of 2-50x4 steel plate, 3- guard rail support, the 3rd L50X32X4 angle steel of 4-, 5- The anti-throwing net of two L50X32X4 angle steel, 6- pedestal, 7-.

Specific embodiment

To make those skilled in the art more fully understand technical solution of the present invention, below with reference to embodiment to the present invention Offer it is a kind of for dividing the anti-throwing net of band to be described in detail in bridge.Following embodiment is merely to illustrate the present invention rather than uses In limiting the scope of the invention.