simple tower instrument construction and its method

Abstract

An erection method by simple tower instrument during upper bridge construction installation, consists of installing 8 bolt1 ½″-400 and lower joint plate 24 mm bold, 50 cm on head of bridge construction pillar as hook designed tower, installing 5 locking plates from lower plate with 24 mm bold, 42 cm height as joint of premier steel pile30 cm, 6.5 mm bold, through 8 bolts and lower joint plate on every head of bridge construction pillar, installing and locking wind fastener15 cm through joint plate 16 mm bold and 4 bolts ¾″ to unite premier tower 330 cm, 6.5 mm bold, locating axis bearings 6 cm on outer side of premier tower as supporting part to tie and tension cable to tower, locating front stays with to 70 degree to tower to put premier supporter on premier tower through bearings, locating back stays with 50 degree to tower to stabilize tower on rear tower pillar through bolt on bridge pillar, locating arc construction onto pontoon using crane, which all arc components made segmental, from segment 1 until segment 13, which loaded onto pontoon, arranged by a way so that pontoon stay stabile during installing arc construction, installing bracing at the same time with arc construction accordingly following arc construction installation, stressing cable using twin ram jack unit or multi-strand M-PV to stabilize premier supporter installation of upper bridge, featured that to unite premier tower piles, we use segmental by unite on site as necessary, and knock down easily after installing premier supporter stabilization of upper bridge portion, meanwhile tower hook, tower, bearings, cable installation, and tension, as additional device by using existent pillars so that reduce duration and cost wholly.

Description

TECHNICAL FIELD OF INVENTION[0001]Present invention refers to a erection method by simple tower instrument devices on building upper bridge construction, especially relates to simple tower instrument devices (cable stayed) in form of tower construction as supporting structure and the cable functions as hanging upper bridge structure, also bearing function as additional tie cable to said tower during pulling activity using twin ram jack unit or multi-strand M-PV in order to construct upper part of bridge so that no need hammer and winch any longer. Further of present invention, refers to simple tower instrument devices as help device during construction process on wide river, result minimize disturbance to river traffic such as pontoon, ship, raft, etc, which will be able to go through freely during the construction, plus minimize accident level. This erection method using simple tower instrument devices may utilize existence bridge pillars, also adjustable tower dimension and cable ...

AI Technical Summary

Benefits of technology

[0009]As previous description, present invention refers to erection method using simple tower instrument (cable stayed) to build upper bridge construction in form of tower construction as supporting structure and the cable functions to hang upper bridge structure, also bearings which function as additional tie-up cable to said tower during pulling activity using twin ram jack unit or multi-strand M-PV in order to construct upper part of bridge but no need hammer and winch any longer. Further present invention, refers to simple tower instrument devices as help device during construction process on wide river, result minimize disturbance to river traffic such as pontoon, ship, raft, etc, which will be able to go through freely during the construction, additionally minimize accident level. This erection method uses simple tower instrument devices which utilize existence bridge pillars; while tower dimension, cable are adjustable with designed construction specification as cost and duration saving.

[0020]Featured that to unite premier tower piles, we use segmental by unite on site as necessary, and unplugged easily after installing premier supporter of upper bridge portion, meanwhile tower hook, tower, bearings, cable installation, and tension, as additional device by using existent pillars so that reduce duration and cost generally.

[0033]Main objective of present invention is to provide an erection method using simple tower devices on constructing upper part of bridge, mainly on wide range to reduce cost and using existent pillars.

[0034]Further objective of present invention is to provide an erection method using simple tower devices on constructing upper part of bridge to minimize disturbance to river traffic and accident risk during the construction.

[0035]Further objective of present invention is to provide an erection method using simple tower devices on constructing upper part of bridge which knock-down easily to reduce cost and duration.

[0037]Further objective of present invention is to provide an erection method using simple tower devices on constructing upper part of bridge which visible to wide range and stoned river bed without disrupt river bed topography as well as reducing environment pollution.

Problems solved by technology

This method needs more manpower and long duration to construct the continues bridge.

Also, said erection process is sensitive to water stream and river bed situation.

It is hard to do because the pontoon will be inhibited by the stones.

Other obstacles are longer duration, high cost, and sensitive to transportation vehicle crush, like pontoon, ship, raft, etc.

Another obstacle is that piles prohibit wooden material as temporary pile due to water condition.

It causes using steel pile and high cost thereof.

Indeed, high cost for temporary job.

Other, numerous pillar will inhibit river traffic so that disturb traffic safety and performance.

Further, during beginning of process which cranes pile scaffolding one by one, pontoon, tugboat, and gauges to construct arc construction and flat frame, so that needs hammer and winch and additional time and fund, also complicated devices.

Another obstacle related to technical factor due to accurate tool to erect premier pillar.

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