CN101892627A - Environmentally-friendly steel bridge pier damping structure form - Google Patents

Environmentally-friendly steel bridge pier damping structure form Download PDF

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Publication number
CN101892627A
CN101892627A CN 201010232746 CN201010232746A CN101892627A CN 101892627 A CN101892627 A CN 101892627A CN 201010232746 CN201010232746 CN 201010232746 CN 201010232746 A CN201010232746 A CN 201010232746A CN 101892627 A CN101892627 A CN 101892627A
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China
Prior art keywords
bridge pier
steel bridge
concrete
low
environmentally
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Pending
Application number
CN 201010232746
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Chinese (zh)
Inventor
吉伯海
陈冬华
刘汉龙
徐声亮
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Hohai University HHU
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Hohai University HHU
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Priority to CN 201010232746 priority Critical patent/CN101892627A/en
Publication of CN101892627A publication Critical patent/CN101892627A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an environmentally-friendly steel bridge pier damping structure form, which consists of the five parts of a root compartment, a horizontal clapboard, a longitudinal stiffening rib, a horizontal stiffening rib and low-modulus concrete. The cross section of the steel bridge pier is the box-shape cross section or the round cross section. The structure form is characterized in that: the longitudinal stiffening rib and the horizontal stiffening rib are welded in the root compartment of the steel bridge pier in a staggering way; the low-modulus concrete is filed in the compartment; the surface of the low-modulus concrete is welded for sealing through the horizontal clapboard; and the low-modulus concrete is made of materials such as rubber concrete and the like. The root of the steel bridge pier is provided with the longitudinal stiffening rib and the horizontal stiffening rib and filled with the low-modulus concrete so that the local buckling of the root of the steel bridge pier is effectively controlled, the steel bridge pier exerts high displacement ductility and the steel bridge pier has high damping performance. The technology has the advantages of convenient field installation, fast construction, flow process operation of the whole course, and contribution to the use in the actual engineering.

Description

A kind of environmentally-friendly steel bridge pier damping structure form
Technical field
What the present invention relates to is steel bridge pier damping form of structure in the bridge engineering, specifically refers to the steel bridge pier structure of box section and 2 kinds of section forms of circular cross-section, belongs to steel bridge pier technical field in the bridge engineering.
Background technology
Steel have that intensity is big, material evenly, plasticity and plurality of advantages such as toughness is good and solderability is good.Compare characteristics such as performance recovery and maintenance and reinforcement after the steel bridge pier has more that lightweight is attractive in appearance, construction is convenient, the construction period is short, floor space is little and is easy to carry out calamity with traditional reinforced concrete bridge pier.At steel bridge pier root fill concrete, improved the rigidity of steel bridge pier, can effectively control steel bridge pier cross section and produce cripling.The above characteristic of steel bridge pier structure is widely used in the bridge engineering it.About the technology described in the research report of steel bridge pier structure, have the following disadvantages at present.
(1) at the steel bridge pier of fill concrete not, its ductility deformability is good, the strength and stiffness deficiency.Steel have good ductile performance, and Gu Gangqiaodun has very strong ductility deformability.The mechanical characteristic of bridge pier determines its root to bear big moment of flexure, and steel bridge pier cross section wall thickness is thinner, easily produces cripling.
(2) at the steel bridge pier of filling ordinary concrete, its strength and stiffness are big, the deformability deficiency.Concrete has very strong compressive strength, and behind the fill concrete, steel bridge pier integral rigidity significantly improves, and root is difficult for producing cripling, but because rigidity is excessive, ductility deformability deficiency easily produces brittle fracture.
(3) economy and damping performance can not have both.The rigidity and the intensity of single raising steel bridge pier, such as the size of the wall thickness that strengthens the steel bridge pier, the quantity that increases stiffening rib, increase stiffening rib, damping performance improves limited, and steel using amount obviously promotes, financial cost significantly improves.
(4) it is loaded down with trivial details that stiffening rib is made construction.Stiffening rib is set in steel bridge pier cross section can effectively avoids it to produce cripling, but, cause it to make work progress more complicated, time-consuming taking a lot of work owing to the operating process that the stiffening rib setting is not formed sequencing.
Summary of the invention
The present invention is to have proposed a kind of environmentally-friendly steel bridge pier damping structure form at above-mentioned the deficiencies in the prior art with regard to technical problem to be solved; be made up of five parts of root compartment, diaphragm, longitudinal stiffener, transverse stiffener, low-elasticity-modulus concrete, steel bridge pier cross sectional shape divides 2 kinds of box section and circular cross-sections.It is characterized in that: longitudinal stiffener, transverse stiffener zigzag weld are connected in the steel bridge pier root compartment, and the ratio of rigidity that increases longitudinal stiffener can improve the plastic deformation ability of steel bridge pier, and transverse stiffener then can effectively reduce the slenderness ratio of longitudinal stiffener.For the box section steel bridge pier, with adopting bolt to connect on one side between the transverse stiffener, both sides intersection transverse stiffener adopts and is welded to connect, and makes it have good whole; For circular cross-section steel bridge pier, adopt between the transverse stiffener to be welded to connect, adopt bolt to connect between longitudinal stiffener and the transverse stiffener, guarantee the continuity of longitudinal stiffener.In the work progress; in steel bridge pier root compartment, fill low-elasticity-modulus concrete to 1/8~1/4 bridge pier height; use diaphragm that the low-elasticity-modulus concrete surface is carried out welded seal; the low-elasticity-modulus concrete adopts materials such as rubber concrete; the rubber size of rubber concrete adopts two kinds in 80 orders, 60 orders, and the rubber volume is 5%~7%.At steel bridge pier root longitudinal stiffener and transverse stiffener and filling low-elasticity-modulus concrete are set and effectively control steel bridge pier root generation cripling, can make the good displacement Ductility of steel bridge pier performance again, make the steel bridge pier have good damping performance.The on-the-spot facility of installing of this technology, construction is quick, whole process can be used the procedure technological operation, makes things convenient in the practice of construction and uses.
In order to study the damping performance of this environmentally-friendly steel bridge pier damping structure form, at filling the low-elasticity-modulus concrete and longitudinal stiffener being set and the steel bridge pier test specimen of transverse stiffener carries out number crunching.Studies show that: the rubber size of rubber concrete adopts two kinds in 80 orders, 60 orders, and the rubber volume is 5%~7% o'clock, and its intensity can keep more than 75% all the time, and modulus of elasticity descends about 25%; The cross section is provided with that the hysteresis loop of steel bridge pier under the course under cyclic loading of simulated earthquake power of longitudinal stiffener and transverse stiffener is full, the ductility deformability is big, have very strong energy dissipation capacity.Result of study shows that this environmentally-friendly steel bridge pier damping structure form can meet design requirement fully, demonstrates good damping effect.
Advantage of the present invention:
(1) structure construction is simple.Environmentally-friendly steel bridge pier damping structure form is made up of root compartment, diaphragm, transverse stiffener, longitudinal stiffener, five parts of low-elasticity-modulus concrete.Form of structure is clearly succinct, connects to be provided with rationally, has globality preferably.
(3) plastic deformation ability is strong.Adopting rubber concrete as packing material the steel bridge pier to be carried out concrete fills, can satisfy the strength and stiffness requirement of steel bridge pier fully, can make the steel bridge pier obtain bigger plastic deformation ability again, under seismic loading, embody displacement Ductility preferably.
(4) environmental-protecting performance is outstanding, can solve the difficult problem that scrap rubber is handled.Use rubber concrete to compare as filler with using ordinary concrete, can save a large amount of cement, thereby can reduce construction costs as filler.Can also gather materials on the spot simultaneously, utilize local scrap rubber, play good environmental-protection function.
(2) site operation facility, procedure operation, construction are fast.Each parts of steel bridge pier damping structure, comprise that stiffening rib and diaphragm all adopt modularization production, be transported to on-the-spot installation after in factory, completing, required rubber concrete, according to the match ratio of given rubber concrete, be filled to steel bridge pier root after the on-the-spot preparation.
Description of drawings
Fig. 1, environmentally-friendly steel bridge pier damping structure form elevation
Fig. 2, environmentally-friendly steel bridge pier damping structure form sectional view
1 root compartment, 2 diaphragms, 3 longitudinal stiffeners, 4 transverse stiffeners, 5 low-elasticity-modulus concrete, (a) box-type section, (b) circular cross-section among the figure
The specific embodiment
Environmentally-friendly steel bridge pier damping structure form of the present invention is made up of root compartment (1), diaphragm (2), longitudinal stiffener (3), transverse stiffener (4), (5) five parts of low-elasticity-modulus concrete.Fig. 1 is the environmentally-friendly steel bridge pier damping structure form elevation.Its principal character is as follows: longitudinal stiffener (3), transverse stiffener (4) zigzag weld are connected in the steel bridge pier root compartment (1).In the work progress; in steel bridge pier root compartment (1), fill low-elasticity-modulus concrete (5) to 1/8~1/4 bridge pier height; use diaphragm (2) that welded seal is carried out on low-elasticity-modulus concrete (5) surface; the low-elasticity-modulus concrete adopts materials such as rubber concrete; the rubber size of rubber concrete adopts two kinds in 80 orders, 60 orders, and the rubber volume is 5%~7%.
Fig. 2 is the environmentally-friendly steel bridge pier damping structure form sectional view.Its principal character is as follows: for the box section steel bridge pier, uniformly-spaced weld 4 longitudinal stiffeners (3) on inboard each limit, 4 limits of box-type section respectively, weld transverse stiffener (4) subsequently, the transverse stiffener on each limit (4) uses 2 steel plate bolts to connect to form, and both sides intersection transverse stiffeners (4) adopt and are welded to connect.For circular cross-section steel bridge pier, inboard equidistantly welding 12 longitudinal stiffeners (3) in circular cross-section, weld transverse stiffener (4) subsequently, adopt between the transverse stiffener (4) to be welded to connect, adopt bolt to connect between longitudinal stiffener (3) and the transverse stiffener (4).

Claims (3)

1. environmentally-friendly steel bridge pier damping structure form; it is characterized in that: form by root compartment (1), diaphragm (2), longitudinal stiffener (3), transverse stiffener (4), (5) five parts of low-elasticity-modulus concrete; cross sectional shape divides 2 kinds of box section and circular cross-sections; longitudinal stiffener (3), transverse stiffener (4) zigzag weld are connected in the root compartment (1); and using low-elasticity-modulus concrete (5) to fill root compartment (1), diaphragm (2) is in order to sealing low-elasticity-modulus concrete (5) surface.
2. environmentally-friendly steel bridge pier damping structure form according to claim 1 is characterized in that: it highly is 1/8~1/4 bridge pier height that described root compartment (1) is provided with, and uses welding diaphragm (2) to cut off.
3. environmentally-friendly steel bridge pier damping structure form according to claim 1 is characterized in that: described low-elasticity-modulus concrete (5) adopts rubber concrete, and rubber size adopts two kinds in 80 orders, 60 orders, and the rubber volume is 5%~7%.
CN 201010232746 2010-07-21 2010-07-21 Environmentally-friendly steel bridge pier damping structure form Pending CN101892627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010232746 CN101892627A (en) 2010-07-21 2010-07-21 Environmentally-friendly steel bridge pier damping structure form

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Application Number Priority Date Filing Date Title
CN 201010232746 CN101892627A (en) 2010-07-21 2010-07-21 Environmentally-friendly steel bridge pier damping structure form

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CN101892627A true CN101892627A (en) 2010-11-24

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103233480A (en) * 2013-05-03 2013-08-07 福州大学 Pre-reamed hole flexible file structure of integrated abutment and bridge and construction method thereof
CN103362063A (en) * 2012-03-29 2013-10-23 陈兴冲 Base oscillating shock-isolation device for pile foundation bridge pier
CN103774548A (en) * 2014-01-08 2014-05-07 华侨大学 Box type steel pier with stiffening energy dissipation wall boards arranged on root
CN103774547A (en) * 2014-01-08 2014-05-07 华侨大学 Circular steel tube pier with embedded T-type energy consumption steel plates
CN105755952A (en) * 2016-04-15 2016-07-13 柳州欧维姆机械股份有限公司 Embedded elastic rubber bearing device and construction method of applying bearing device to connection between prefabricated concrete bridge pier and pile cap

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002097609A (en) * 2000-09-26 2002-04-02 Ishikawajima Harima Heavy Ind Co Ltd Aseismatic reinforcing method for steel bridge pier
JP2009019356A (en) * 2007-07-10 2009-01-29 Ohbayashi Corp Structure and method for jointing bridge pier and footing
JP2009035992A (en) * 2007-08-03 2009-02-19 Ohbayashi Corp Structure and method for joining bridge pier and footing together

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002097609A (en) * 2000-09-26 2002-04-02 Ishikawajima Harima Heavy Ind Co Ltd Aseismatic reinforcing method for steel bridge pier
JP2009019356A (en) * 2007-07-10 2009-01-29 Ohbayashi Corp Structure and method for jointing bridge pier and footing
JP2009035992A (en) * 2007-08-03 2009-02-19 Ohbayashi Corp Structure and method for joining bridge pier and footing together

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
《中国优秀硕士论文电子期刊网》 20060401 马敬海 《部分内填混凝土钢箱形断面桥墩抗震性能研究》 , 2 *
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103362063A (en) * 2012-03-29 2013-10-23 陈兴冲 Base oscillating shock-isolation device for pile foundation bridge pier
CN103233480A (en) * 2013-05-03 2013-08-07 福州大学 Pre-reamed hole flexible file structure of integrated abutment and bridge and construction method thereof
CN103774548A (en) * 2014-01-08 2014-05-07 华侨大学 Box type steel pier with stiffening energy dissipation wall boards arranged on root
CN103774547A (en) * 2014-01-08 2014-05-07 华侨大学 Circular steel tube pier with embedded T-type energy consumption steel plates
CN103774548B (en) * 2014-01-08 2015-08-05 华侨大学 A kind of root arranges the box steel pier of power consumption wallboard of putting more energy into
CN103774547B (en) * 2014-01-08 2015-11-04 华侨大学 The round steel pipe bridge pier of embedded T-shaped Wasted-energy steel plate
CN105755952A (en) * 2016-04-15 2016-07-13 柳州欧维姆机械股份有限公司 Embedded elastic rubber bearing device and construction method of applying bearing device to connection between prefabricated concrete bridge pier and pile cap

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Open date: 20101124